Serialized Form

Package neqsim.blackoil

Class neqsim.blackoil.BlackOilFlash

class BlackOilFlash extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

pvt

BlackOilPVTTable pvt

rho_g_sc

double rho_g_sc

rho_o_sc

double rho_o_sc

rho_w_sc

double rho_w_sc

Class neqsim.blackoil.BlackOilFlashResult

class BlackOilFlashResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

Bg

double Bg

Bo

double Bo

Bw

double Bw

Gf_std

double Gf_std

mu_g

double mu_g

mu_o

double mu_o

mu_w

double mu_w

O_std

double O_std

rho_g

double rho_g

rho_o

double rho_o

rho_w

double rho_w

Rs

double Rs

Rv

double Rv

V_g

double V_g

V_o

double V_o

V_w

double V_w

W_std

double W_std

Class neqsim.blackoil.BlackOilPVTTable

class BlackOilPVTTable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubblePointP

double bubblePointP

recs

List<BlackOilPVTTable.Record> recs

Class neqsim.blackoil.BlackOilPVTTable.Record

class Record extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

Bg

double Bg

Bo

double Bo

Bw

double Bw

mu_g

double mu_g

mu_o

double mu_o

mu_w

double mu_w

p

double p

Rs

double Rs

Rv

double Rv

Class neqsim.blackoil.SystemBlackOil

class SystemBlackOil extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flash

BlackOilFlash flash

Gtot_std

double Gtot_std

last

BlackOilFlashResult last

Otot_std

double Otot_std

P

double P

pvt

BlackOilPVTTable pvt

T

double T

W_std

double W_std

Package neqsim.chemicalreactions

Class neqsim.chemicalreactions.ChemicalReactionOperations

class ChemicalReactionOperations extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allComponentNames

String[] allComponentNames

Amatrix

double[][] Amatrix

bVector

double[] bVector

chemRefPot

double[] chemRefPot

componentNames

String[] componentNames

components

ComponentInterface[] components

deltaReactionHeat

double deltaReactionHeat

elements

String[] elements

firsttime

boolean firsttime

inertMoles

double inertMoles

initCalc

LinearProgrammingChemicalEquilibrium initCalc

iter

int iter

kineticsSolver

Kinetics kineticsSolver

newMoles

double[] newMoles

nVector

double[] nVector

phase

int phase

reactionList

ChemicalReactionList reactionList

solver

ChemicalEquilibrium solver

system

SystemInterface system

Package neqsim.chemicalreactions.chemicalequilibrium

Class neqsim.chemicalreactions.chemicalequilibrium.ChemEq

class ChemEq extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

A_matrix

double[][] A_matrix

agemo

double agemo

b_cal

double[] b_cal

b_element

double[] b_element

b_vector

double[] b_vector

chem_pot

double[] chem_pot

chem_ref

double[] chem_ref

d_n

double[] d_n

G_min

double G_min

matrix

double[][] matrix

n_mol

double[] n_mol

n_t

double n_t

NELE

int NELE

NNOT

int NNOT

NSPEC

int NSPEC

P

double P

phi

double[] phi

R

double R

second_term

double[] second_term

T

double T

u_u

double u_u

Class neqsim.chemicalreactions.chemicalequilibrium.ChemicalEquilibrium

class ChemicalEquilibrium extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

A_Jama_matrix

Jama.Matrix A_Jama_matrix

A_matrix

double[][] A_matrix

A_solve

Jama.Matrix A_solve

agemo

double agemo

Alambda_matrix

Jama.Matrix Alambda_matrix

AMA_matrix

Jama.Matrix AMA_matrix

AMU_matrix

Jama.Matrix AMU_matrix

b_element

double[] b_element

b_matrix

Jama.Matrix b_matrix

b_solve

Jama.Matrix b_solve

chem_pot

double[] chem_pot

chem_pot_Jama_Matrix

Jama.Matrix chem_pot_Jama_Matrix

chem_ref

double[] chem_ref

components

ComponentInterface[] components

convergenceTolerance

double convergenceTolerance

Convergence tolerance for relative mole change. Default is 1e-8.

d_n

double[] d_n

d_n_t

double d_n_t

dn_matrix

Jama.Matrix dn_matrix

kronDelt

double kronDelt

lastConverged

boolean lastConverged

Whether the last solve() call converged successfully.

lastError

double lastError

Final relative error from the last solve() call.

lastIterationCount

int lastIterationCount

Number of iterations from the last solve() call.

logactivityVec

double[] logactivityVec

M_Jama_matrix

Jama.Matrix M_Jama_matrix

M_matrix

double[][] M_matrix

maxIterations

int maxIterations

Maximum iterations allowed (configurable). Default is MAX_ITERATIONS.

n_mol

double[] n_mol

n_t

double n_t

n0

double[] n0

NELE

int NELE

nmu

Jama.Matrix nmu

NSPEC

int NSPEC

nVector

double[] nVector

phasenumb

int phasenumb

R

double R

system

SystemInterface system

upMoles

int upMoles

useAdaptiveDerivatives

boolean useAdaptiveDerivatives

Flag to enable automatic switching to derivatives after initial iterations. When true, starts with simple iterations then switches to derivatives for faster convergence.

useFugacityDerivatives

boolean useFugacityDerivatives

Flag to enable fugacity coefficient derivatives in M_matrix. When true, uses init(3) for derivative calculations and includes dln(fugacity)/dN terms for more accurate Newton steps. Default is false for backward compatibility and performance.

useFullMMatrix

boolean useFullMMatrix

Flag to enable the full Smith-Missen M-matrix with the -1/n_t coupling term. When true, uses M_ij = δ_ij/n_i - 1/n_t instead of the simplified M_ij = δ_ij/n_i. The full form provides better quadratic convergence near the solution but may be less stable for some systems. Default is false for backward compatibility and stability.

waterNumb

int waterNumb

x_solve

Jama.Matrix x_solve

y_solve

double y_solve

Class neqsim.chemicalreactions.chemicalequilibrium.LinearProgrammingChemicalEquilibrium

class LinearProgrammingChemicalEquilibrium extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

Amatrix

double[][] Amatrix

changes

int changes

chemRefPot

double[] chemRefPot

components

ComponentInterface[] components

elements

String[] elements

maxChanges

int maxChanges

minChanges

int minChanges

numbering

double[] numbering

operations

ChemicalReactionOperations operations

xEts

double[] xEts

Class neqsim.chemicalreactions.chemicalequilibrium.ReferencePotComparator

class ReferencePotComparator extends Object implements Serializable

serialVersionUID:

1000L

Package neqsim.chemicalreactions.chemicalreaction

Class neqsim.chemicalreactions.chemicalreaction.ChemicalReaction

class ChemicalReaction extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

activationEnergy

double activationEnergy

G

double G

K

double[] K

lnK

double lnK

moles

double[] moles

names

String[] names

numberOfReactants

int numberOfReactants

prodCoefs

double[] prodCoefs

productNames

String[] productNames

rateFactor

double rateFactor

reacCoefs

double[] reacCoefs

reactantNames

String[] reactantNames

refT

double refT

shiftSignK

boolean shiftSignK

stocCoefs

double[] stocCoefs

Class neqsim.chemicalreactions.chemicalreaction.ChemicalReactionList

class ChemicalReactionList extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

chemicalReactionList

ArrayList<ChemicalReaction> chemicalReactionList

reacGMatrix

double[][] reacGMatrix

reacMatrix

double[][] reacMatrix

reactiveComponentList

String[] reactiveComponentList

refPotComponents

ComponentInterface[] refPotComponents

Components array for reference potential calculations.

tempReacMatrix

double[][] tempReacMatrix

tempStocMatrix

double[][] tempStocMatrix

Package neqsim.chemicalreactions.kinetics

Class neqsim.chemicalreactions.kinetics.Kinetics

class Kinetics extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

isIrreversible

boolean isIrreversible

operations

ChemicalReactionOperations operations

phiInfinite

double phiInfinite

Package neqsim.datapresentation.filehandling

Class neqsim.datapresentation.filehandling.TextFile

class TextFile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fileName

String fileName

values

String[][] values

Package neqsim.datapresentation.jfreechart

Class neqsim.datapresentation.jfreechart.Graph2b

class Graph2b extends JFrame implements Serializable

serialVersionUID:

1000L

Serialized Fields

categoryData

org.jfree.data.category.CategoryDataset categoryData

chart

org.jfree.chart.JFreeChart chart

chartPanel4

org.jfree.chart.ChartPanel chartPanel4

jPanel1

JPanel jPanel1

jTextPane1

JTextPane jTextPane1

titl

String titl

xaxtitle

String xaxtitle

xyData

org.jfree.data.xy.XYDataset xyData

yaxtitle

String yaxtitle

Package neqsim.fluidmechanics.flowleg

Class neqsim.fluidmechanics.flowleg.FlowLeg

class FlowLeg extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

endHeightCoordinate

double endHeightCoordinate

endLongitudionalCoordinate

double endLongitudionalCoordinate

endOuterHeatTransferCoefficient

double endOuterHeatTransferCoefficient

endOuterTemperature

double endOuterTemperature

endWallHeatTransferCOefficients

double endWallHeatTransferCOefficients

equipmentGeometry

GeometryDefinitionInterface equipmentGeometry

flowNode

FlowNodeInterface[] flowNode

heightChangePerNode

double heightChangePerNode

longitudionalChangePerNode

double longitudionalChangePerNode

nodeSelector

FlowNodeSelector nodeSelector

numberOfNodes

int numberOfNodes

startHeightCoordinate

double startHeightCoordinate

startLongitudionalCoordinate

double startLongitudionalCoordinate

startOuterHeatTransferCoefficient

double startOuterHeatTransferCoefficient

startOuterTemperature

double startOuterTemperature

startWallHeatTransferCOefficients

double startWallHeatTransferCOefficients

temperatureChangePerNode

double temperatureChangePerNode

thermoSystem

SystemInterface thermoSystem

Package neqsim.fluidmechanics.flowleg.pipeleg

Class neqsim.fluidmechanics.flowleg.pipeleg.PipeLeg

class PipeLeg extends FlowLeg implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode

Class neqsim.fluidmechanics.flownode.FlowNode

class FlowNode extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bulkSystem

SystemInterface bulkSystem

distanceToCenterOfNode

double distanceToCenterOfNode

flowDirection

int[] flowDirection

flowNodeType

String flowNodeType

fluidBoundary

FluidBoundaryInterface fluidBoundary

hydraulicDiameter

double[] hydraulicDiameter

inclination

double inclination

interphaseContactArea

double interphaseContactArea

interphaseContactLength

double[] interphaseContactLength

interphaseFrictionFactor

double[] interphaseFrictionFactor

interphaseTransportCoefficient

InterphaseTransportCoefficientInterface interphaseTransportCoefficient

lengthOfNode

double lengthOfNode

massFlowRate

double[] massFlowRate

molarFlowRate

double[] molarFlowRate

operations

ThermodynamicOperations operations

phaseFraction

double[] phaseFraction

phaseOps

ThermodynamicOperations phaseOps

pipe

GeometryDefinitionInterface pipe

reynoldsNumber

double[] reynoldsNumber

specifiedFrictionFactor

Double[] specifiedFrictionFactor

superficialVelocity

double[] superficialVelocity

velocity

double[] velocity

velocityIn

DoubleCloneable[] velocityIn

velocityOut

DoubleCloneable[] velocityOut

veticalPositionOfNode

double veticalPositionOfNode

volumetricFlowRate

double[] volumetricFlowRate

wallContactLength

double[] wallContactLength

wallFrictionFactor

double[] wallFrictionFactor

Package neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.FluidBoundary

class FluidBoundary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryMassTransferCoefficient

double[][][] binaryMassTransferCoefficient

binarySchmidtNumber

double[][][] binarySchmidtNumber

bulkSystem

SystemInterface bulkSystem

bulkSystemOps

ThermodynamicOperations bulkSystemOps

enhancementFactor

EnhancementFactor enhancementFactor

finiteFluxCorrection

boolean[] finiteFluxCorrection

flowNode

FlowNodeInterface flowNode

fluxTypeCorrectionMatrix

Jama.Matrix[] fluxTypeCorrectionMatrix

fluxTypeCorrectionMatrixV

Jama.Matrix[] fluxTypeCorrectionMatrixV

heatTransferCalc

boolean heatTransferCalc

heatTransferCoefficient

double[] heatTransferCoefficient

heatTransferCorrection

double[] heatTransferCorrection

interphaseHeatFlux

double[] interphaseHeatFlux

interphaseOps

ThermodynamicOperations interphaseOps

interphaseSystem

SystemInterface interphaseSystem

jFlux

Jama.Matrix jFlux

massTransferCalc

boolean massTransferCalc

massTransferCoefficientMatrix

Jama.Matrix[] massTransferCoefficientMatrix

nFlux

Jama.Matrix nFlux

nonIdealCorrections

Jama.Matrix[] nonIdealCorrections

numeric

boolean numeric

prandtlNumber

double[] prandtlNumber

rateCorrectionMatrix

Jama.Matrix[] rateCorrectionMatrix

solverType

int solverType

thermodynamicCorrections

boolean[] thermodynamicCorrections

totalFlux

double totalFlux

totalMassTransferCoefficientMatrix

Jama.Matrix[] totalMassTransferCoefficientMatrix

Package neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.equilibriumfluidboundary

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.equilibriumfluidboundary.EquilibriumFluidBoundary

class EquilibriumFluidBoundary extends FluidBoundary implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.NonEquilibriumFluidBoundary

class NonEquilibriumFluidBoundary extends FluidBoundary implements Serializable

serialVersionUID:

1000L

Serialized Fields

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

Jac

Jama.Matrix Jac

molFractionDifference

double[][] molFractionDifference

neq

int neq

uMassTrans

Jama.Matrix uMassTrans

uMassTransold

Jama.Matrix uMassTransold

Xgij

Jama.Matrix Xgij

Package neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.filmmodelboundary

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.filmmodelboundary.KrishnaStandartFilmModel

class KrishnaStandartFilmModel extends NonEquilibriumFluidBoundary implements Serializable

serialVersionUID:

1000L

Serialized Fields

betaMatrix

Jama.Matrix betaMatrix

phiMatrix

Jama.Matrix phiMatrix

redCorrectionMatrix

Jama.Matrix redCorrectionMatrix

redPhiMatrix

Jama.Matrix redPhiMatrix

Package neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.filmmodelboundary.reactivefilmmodel

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.filmmodelboundary.reactivefilmmodel.ReactiveFluidBoundary

class ReactiveFluidBoundary extends KrishnaStandartFilmModel implements Serializable

serialVersionUID:

1000L

Serialized Fields

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

Jac

Jama.Matrix Jac

molFractionDifference

double[][] molFractionDifference

neq

int neq

uMassTrans

Jama.Matrix uMassTrans

uMassTransold

Jama.Matrix uMassTransold

Xgij

Jama.Matrix Xgij

Class neqsim.fluidmechanics.flownode.fluidboundary.heatmasstransfercalc.nonequilibriumfluidboundary.filmmodelboundary.reactivefilmmodel.ReactiveKrishnaStandartFilmModel

class ReactiveKrishnaStandartFilmModel extends KrishnaStandartFilmModel implements Serializable

serialVersionUID:

1000L

Serialized Fields

enhancementType

int enhancementType

Package neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasepipeflow

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasepipeflow.InterphaseAnnularFlow

class InterphaseAnnularFlow extends InterphaseStratifiedFlow implements Serializable

serialVersionUID:

1000L

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasepipeflow.InterphaseDropletFlow

class InterphaseDropletFlow extends InterphaseTwoPhasePipeFlow implements Serializable

serialVersionUID:

1000L

Serialized Fields

spaldingMassTransferNumber

double spaldingMassTransferNumber

The Spalding mass transfer number B_M = (Y_s - Y_inf) / (1 - Y_s), where Y_s is the vapor mass fraction at the droplet surface and Y_inf is the far-field vapor mass fraction. Set externally based on current evaporation conditions.

useAbramzonSirignano

boolean useAbramzonSirignano

Flag to enable the Abramzon-Sirignano extended film model for evaporating droplets. When true, the Ranz-Marshall Sherwood number is corrected for Stefan flow (blowing) using the Spalding mass transfer number. Default is false (standard Ranz-Marshall).

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasepipeflow.InterphaseSlugFlow

class InterphaseSlugFlow extends InterphaseTwoPhasePipeFlow implements Serializable

serialVersionUID:

1000L

Serialized Fields

liquidHoldupInSlug

double liquidHoldupInSlug

Liquid holdup in slug body (typically 0.7-1.0).

slugLengthToDiameterRatio

double slugLengthToDiameterRatio

Slug unit length to diameter ratio (typical range 15-40).

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasepipeflow.InterphaseStratifiedFlow

class InterphaseStratifiedFlow extends InterphaseTwoPhasePipeFlow implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasereactorflow

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.interphasereactorflow.InterphasePackedBed

class InterphasePackedBed extends InterphaseReactorFlow implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.stirredcell

Class neqsim.fluidmechanics.flownode.fluidboundary.interphasetransportcoefficient.interphasetwophase.stirredcell.InterphaseStirredCellFlow

class InterphaseStirredCellFlow extends InterphaseStratifiedFlow implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.multiphasenode

Class neqsim.fluidmechanics.flownode.multiphasenode.MultiPhaseFlowNode

class MultiPhaseFlowNode extends FlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.multiphasenode.waxnode

Class neqsim.fluidmechanics.flownode.multiphasenode.waxnode.WaxDepositionFlowNode

class WaxDepositionFlowNode extends MultiPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.onephasenode

Class neqsim.fluidmechanics.flownode.onephasenode.onePhaseFlowNode

class onePhaseFlowNode extends FlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.onephasenode.onephasepipeflownode

Class neqsim.fluidmechanics.flownode.onephasenode.onephasepipeflownode.onePhasePipeFlowNode

class onePhasePipeFlowNode extends onePhaseFlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.twophasenode

Class neqsim.fluidmechanics.flownode.twophasenode.TwoPhaseFlowNode

class TwoPhaseFlowNode extends FlowNode implements Serializable

serialVersionUID:

1000L

Serialized Fields

interfacialAreaModel

InterfacialAreaModel interfacialAreaModel

Interfacial area model selection.

interfacialAreaPerVolume

double interfacialAreaPerVolume

Interfacial area per unit volume (1/m).

userDefinedInterfacialAreaPerVolume

double userDefinedInterfacialAreaPerVolume

User-defined interfacial area per unit volume (1/m) for USER_DEFINED model.

Package neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode

Class neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode.AnnularFlow

class AnnularFlow extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Class neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode.BubbleFlowNode

class BubbleFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageBubbleDiameter

double averageBubbleDiameter

Class neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode.DropletFlowNode

class DropletFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageDropletDiameter

double averageDropletDiameter

Class neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode.SlugFlowNode

class SlugFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Serialized Fields

slugFrequency

double slugFrequency

Slug frequency in Hz.

slugLengthRatio

double slugLengthRatio

Slug length to diameter ratio.

slugTranslationalVelocity

double slugTranslationalVelocity

Slug translational velocity.

Class neqsim.fluidmechanics.flownode.twophasenode.twophasepipeflownode.StratifiedFlowNode

class StratifiedFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.twophasenode.twophasereactorflownode

Class neqsim.fluidmechanics.flownode.twophasenode.twophasereactorflownode.TwoPhasePackedBedFlowNode

class TwoPhasePackedBedFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Class neqsim.fluidmechanics.flownode.twophasenode.twophasereactorflownode.TwoPhaseTrayTowerFlowNode

class TwoPhaseTrayTowerFlowNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flownode.twophasenode.twophasestirredcellnode

Class neqsim.fluidmechanics.flownode.twophasenode.twophasestirredcellnode.StirredCellNode

class StirredCellNode extends TwoPhaseFlowNode implements Serializable

serialVersionUID:

1000L

Serialized Fields

dt

double dt

stirrerDiameter

double[] stirrerDiameter

stirrerRate

double[] stirrerRate

Package neqsim.fluidmechanics.flowsolver

Class neqsim.fluidmechanics.flowsolver.FlowSolver

class FlowSolver extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dynamic

boolean dynamic

numberOfNodes

int numberOfNodes

numberOfVelocityNodes

int numberOfVelocityNodes

solverType

int solverType

timeStep

double timeStep

Package neqsim.fluidmechanics.flowsolver.onephaseflowsolver

Class neqsim.fluidmechanics.flowsolver.onephaseflowsolver.OnePhaseFlowSolver

class OnePhaseFlowSolver extends FlowSolver implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flowsolver.onephaseflowsolver.onephasepipeflowsolver

Class neqsim.fluidmechanics.flowsolver.onephaseflowsolver.onephasepipeflowsolver.OnePhaseFixedStaggeredGrid

class OnePhaseFixedStaggeredGrid extends OnePhasePipeFlowSolver implements Serializable

serialVersionUID:

1000L

Serialized Fields

diff4Matrix

Jama.Matrix[] diff4Matrix

diffMatrix

Jama.Matrix diffMatrix

iter

int iter

oldComp

double[] oldComp

oldComposition

double[][] oldComposition

oldDensity

double[] oldDensity

oldEnergy

double[] oldEnergy

oldImpuls

double[] oldImpuls

oldInternalEnergy

double[] oldInternalEnergy

oldMass

double[] oldMass

oldVelocity

double[] oldVelocity

xNew

double[][] xNew

Class neqsim.fluidmechanics.flowsolver.onephaseflowsolver.onephasepipeflowsolver.OnePhasePipeFlowSolver

class OnePhasePipeFlowSolver extends OnePhaseFlowSolver implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double[] a

b

double[] b

c

double[] c

length

double length

PbArray

double[] PbArray

pipe

PipeFlowSystem pipe

r

double[] r

sol2Matrix

Jama.Matrix sol2Matrix

sol3Matrix

Jama.Matrix sol3Matrix

sol4Matrix

Jama.Matrix[] sol4Matrix

solMatrix

Jama.Matrix solMatrix

Package neqsim.fluidmechanics.flowsolver.twophaseflowsolver.stirredcellsolver

Class neqsim.fluidmechanics.flowsolver.twophaseflowsolver.stirredcellsolver.StirredCellSolver

class StirredCellSolver extends TwoPhasePipeFlowSolver implements Serializable

serialVersionUID:

1000L

Serialized Fields

diff4Matrix

Jama.Matrix[] diff4Matrix

diffMatrix

Jama.Matrix diffMatrix

dn

double[][] dn

iter

int iter

oldComp

double[][] oldComp

oldComposition

double[][][] oldComposition

oldDensity

double[][] oldDensity

oldEnergy

double[][] oldEnergy

oldImpuls

double[][] oldImpuls

oldInternalEnergy

double[][] oldInternalEnergy

oldMass

double[][] oldMass

oldVelocity

double[][] oldVelocity

xNew

double[][][] xNew

Package neqsim.fluidmechanics.flowsolver.twophaseflowsolver.twophasepipeflowsolver

Class neqsim.fluidmechanics.flowsolver.twophaseflowsolver.twophasepipeflowsolver.TwoPhaseFixedStaggeredGridSolver

class TwoPhaseFixedStaggeredGridSolver extends TwoPhasePipeFlowSolver implements Serializable

serialVersionUID:

1000L

Serialized Fields

cumulativeMassTransfer

double[][] cumulativeMassTransfer

Cumulative mass transfer for monitoring.

diff4Matrix

Jama.Matrix[] diff4Matrix

diffMatrix

Jama.Matrix diffMatrix

dn

double[][] dn

iter

int iter

massTransferMode

TwoPhaseFixedStaggeredGridSolver.MassTransferMode massTransferMode

Current mass transfer mode.

oldComp

double[][] oldComp

oldComposition

double[][][] oldComposition

oldDensity

double[][] oldDensity

oldEnergy

double[][] oldEnergy

oldImpuls

double[][] oldImpuls

oldInternalEnergy

double[][] oldInternalEnergy

oldMass

double[][] oldMass

oldVelocity

double[][] oldVelocity

phasePresent

boolean[] phasePresent

Track phases that have disappeared during simulation.

solverTypeEnum

TwoPhaseFixedStaggeredGridSolver.SolverType solverTypeEnum

Current solver type (enum). Default includes momentum, phase, and energy.

xNew

double[][][] xNew

Class neqsim.fluidmechanics.flowsolver.twophaseflowsolver.twophasepipeflowsolver.TwoPhasePipeFlowSolver

class TwoPhasePipeFlowSolver extends OnePhaseFlowSolver implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double[] a

b

double[] b

c

double[] c

length

double length

numberOfNodes

int numberOfNodes

PbArray

double[] PbArray

pipe

FlowSystemInterface pipe

r

double[] r

sol2Matrix

Jama.Matrix sol2Matrix

sol3Matrix

Jama.Matrix[] sol3Matrix

sol4Matrix

Jama.Matrix[] sol4Matrix

solMatrix

Jama.Matrix[] solMatrix

solMolFracMatrix

Jama.Matrix[][] solMolFracMatrix

solPhaseConsMatrix

Jama.Matrix[] solPhaseConsMatrix

Package neqsim.fluidmechanics.flowsystem

Class neqsim.fluidmechanics.flowsystem.FlowSystem

class FlowSystem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

advectionScheme

AdvectionScheme advectionScheme

Advection scheme for compositional tracking.

calcIdentifier

UUID calcIdentifier

Unique identifier of which solve/run call was last called successfully.

endPressure

double endPressure

equilibriumHeatTransfer

boolean equilibriumHeatTransfer

equilibriumMassTransfer

boolean equilibriumMassTransfer

equipmentGeometry

GeometryDefinitionInterface[] equipmentGeometry

flowLeg

FlowLegInterface[] flowLeg

flowNode

FlowNodeInterface[] flowNode

flowSolver

FlowSolverInterface flowSolver

initFlowPattern

String initFlowPattern

inletMolarGasFlowRate

double inletMolarGasFlowRate

inletMolarLiquidFlowRate

double inletMolarLiquidFlowRate

inletPressure

double inletPressure

inletTemperature

double inletTemperature

legHeights

double[] legHeights

legOuterHeatTransferCoefficients

double[] legOuterHeatTransferCoefficients

legOuterTemperatures

double[] legOuterTemperatures

legPositions

double[] legPositions

legWallHeatTransferCoefficients

double[] legWallHeatTransferCoefficients

numberOfFlowLegs

int numberOfFlowLegs

numberOfNodesInLeg

int[] numberOfNodesInLeg

systemLength

double systemLength

thermoOperations

ThermodynamicOperations thermoOperations

thermoSystem

SystemInterface thermoSystem

timeSeries

TimeSeries timeSeries

totalNumberOfNodes

int totalNumberOfNodes

Package neqsim.fluidmechanics.flowsystem.onephaseflowsystem

Class neqsim.fluidmechanics.flowsystem.onephaseflowsystem.OnePhaseFlowSystem

class OnePhaseFlowSystem extends FlowSystem implements Serializable

serialVersionUID:

1000L

Serialized Fields

pipe

PipeData pipe

Package neqsim.fluidmechanics.flowsystem.onephaseflowsystem.pipeflowsystem

Class neqsim.fluidmechanics.flowsystem.onephaseflowsystem.pipeflowsystem.PipeFlowSystem

class PipeFlowSystem extends OnePhaseFlowSystem implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flowsystem.twophaseflowsystem

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.TwoPhaseFlowSystem

class TwoPhaseFlowSystem extends FlowSystem implements Serializable

serialVersionUID:

1000L

Serialized Fields

pipe

PipeData pipe

Package neqsim.fluidmechanics.flowsystem.twophaseflowsystem.shipsystem

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.shipsystem.LNGship

class LNGship extends TwoPhaseFlowSystem implements Serializable

serialVersionUID:

1000L

Serialized Fields

backCalculate

boolean backCalculate

dailyBoilOffRatio

double dailyBoilOffRatio

dailyBoilOffVolume

double dailyBoilOffVolume

density

double[] density

endTime

double endTime

endVolume

double endVolume

GCV

double[] GCV

GCVmass

double[] GCVmass

initialNumberOffMoles

double initialNumberOffMoles

initialTemperature

double initialTemperature

liquidDensity

double liquidDensity

molarBoilOffRate

double molarBoilOffRate

numberOffTimeSteps

int numberOffTimeSteps

resultTable

String[][] resultTable

setInitialTemperature

boolean setInitialTemperature

standardDensity

StandardInterface standardDensity

standardISO6976

Standard_ISO6976 standardISO6976

tankTemperature

double[] tankTemperature

temperature

double[] temperature

thermoSystem

SystemInterface thermoSystem

time

double[] time

timeStep

double timeStep

totalEnergy

double[] totalEnergy

totalTankVolume

double totalTankVolume

volume

double[] volume

WI

double[] WI

xethane

double[] xethane

xiC4

double[] xiC4

xiC5

double[] xiC5

xmethane

double[] xmethane

xnC4

double[] xnC4

xnC5

double[] xnC5

xnC6

double[] xnC6

xnitrogen

double[] xnitrogen

xpropane

double[] xpropane

yethane

double[] yethane

yiC4

double[] yiC4

yiC5

double[] yiC5

ymethane

double[] ymethane

ynC4

double[] ynC4

ynC5

double[] ynC5

ynC6

double[] ynC6

ynitrogen

double[] ynitrogen

ypropane

double[] ypropane

Package neqsim.fluidmechanics.flowsystem.twophaseflowsystem.stirredcellsystem

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.stirredcellsystem.StirredCellSystem

class StirredCellSystem extends TwoPhaseFlowSystem implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasepipeflowsystem

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasepipeflowsystem.PipeFlowResult

class PipeFlowResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentNames

String[] componentNames

flowPatterns

FlowPattern[] flowPatterns

gasDensities

double[] gasDensities

gasVelocities

double[] gasVelocities

inletPressure

double inletPressure

inletTemperature

double inletTemperature

interfacialAreas

double[] interfacialAreas

liquidDensities

double[] liquidDensities

liquidHoldups

double[] liquidHoldups

liquidVelocities

double[] liquidVelocities

numberOfNodes

int numberOfNodes

outletPressure

double outletPressure

outletTemperature

double outletTemperature

pipeDiameter

double pipeDiameter

pipeLength

double pipeLength

positions

double[] positions

pressures

double[] pressures

temperatures

double[] temperatures

totalHeatLoss

double totalHeatLoss

totalMassTransferRates

double[] totalMassTransferRates

totalPressureDrop

double totalPressureDrop

voidFractions

double[] voidFractions

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasepipeflowsystem.TwoPhasePipeFlowSystem

class TwoPhasePipeFlowSystem extends TwoPhaseFlowSystem implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature in Kelvin (for CONVECTIVE_BOUNDARY model).

automaticFlowPatternDetection

boolean automaticFlowPatternDetection

Whether automatic flow pattern detection is enabled.

constantHeatFlux

double constantHeatFlux

Constant heat flux in W/m² (for CONSTANT_HEAT_FLUX model).

constantWallTemperature

double constantWallTemperature

Constant wall temperature in Kelvin (for CONSTANT_WALL_TEMPERATURE model).

currentTime

double currentTime

Current simulation time in seconds.

flowPatternModel

FlowPatternModel flowPatternModel

Flow pattern prediction model.

inclination

double inclination

Pipe inclination angle in radians (positive = upward flow).

massTransferMode

TwoPhaseFixedStaggeredGridSolver.MassTransferMode massTransferMode

Mass transfer mode for non-equilibrium calculations.

nodeFlowPatterns

FlowPattern[] nodeFlowPatterns

Current flow patterns at each node.

numberOfTimeSteps

int numberOfTimeSteps

Number of time steps completed.

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

Overall heat transfer coefficient in W/(m²·K) (for CONVECTIVE_BOUNDARY model).

simulationTime

double simulationTime

Total simulation time for transient simulations in seconds.

solverTypeEnum

TwoPhaseFixedStaggeredGridSolver.SolverType solverTypeEnum

Solver type controlling which equations are solved. Default includes momentum (pressure drop), phase fraction, and energy equations.

timeStep

double timeStep

Time step for transient simulations in seconds.

wallHeatTransferModel

WallHeatTransferModel wallHeatTransferModel

Wall heat transfer model.

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasepipeflowsystem.TwoPhasePipeFlowSystemReac

class TwoPhasePipeFlowSystemReac extends TwoPhasePipeFlowSystem implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasereactorflowsystem

Class neqsim.fluidmechanics.flowsystem.twophaseflowsystem.twophasereactorflowsystem.TwoPhaseReactorFlowSystem

class TwoPhaseReactorFlowSystem extends TwoPhaseFlowSystem implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.geometrydefinitions

Class neqsim.fluidmechanics.geometrydefinitions.GeometryDefinition

class GeometryDefinition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

area

double area

diameter

double diameter

innerSurfaceRoughness

double innerSurfaceRoughness

innerWallTemperature

double innerWallTemperature

layerConductivity

double[] layerConductivity

layerThickness

double[] layerThickness

nodeLength

double nodeLength

packing

PackingInterface packing

radius

double radius

relativeRoughnes

double relativeRoughnes

surroundingEnvironment

SurroundingEnvironment surroundingEnvironment

wall

Wall wall

wallHeatTransferCoefficient

double wallHeatTransferCoefficient

Package neqsim.fluidmechanics.geometrydefinitions.internalgeometry.packings

Class neqsim.fluidmechanics.geometrydefinitions.internalgeometry.packings.BerlSaddlePacking

class BerlSaddlePacking extends Packing implements Serializable

serialVersionUID:

1000L

Class neqsim.fluidmechanics.geometrydefinitions.internalgeometry.packings.Packing

class Packing extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

size

double size

surfaceAreaPrVolume

double surfaceAreaPrVolume

voidFractionPacking

double voidFractionPacking

Class neqsim.fluidmechanics.geometrydefinitions.internalgeometry.packings.PallRingPacking

class PallRingPacking extends Packing implements Serializable

serialVersionUID:

1000L

Class neqsim.fluidmechanics.geometrydefinitions.internalgeometry.packings.RachigRingPacking

class RachigRingPacking extends Packing implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.geometrydefinitions.pipe

Class neqsim.fluidmechanics.geometrydefinitions.pipe.PipeData

class PipeData extends GeometryDefinition implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.geometrydefinitions.reactor

Class neqsim.fluidmechanics.geometrydefinitions.reactor.ReactorData

class ReactorData extends GeometryDefinition implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.geometrydefinitions.stirredcell

Class neqsim.fluidmechanics.geometrydefinitions.stirredcell.StirredCell

class StirredCell extends GeometryDefinition implements Serializable

serialVersionUID:

1000L

Package neqsim.fluidmechanics.util.timeseries

Class neqsim.fluidmechanics.util.timeseries.TimeSeries

class TimeSeries extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

inletThermoSystem

SystemInterface[] inletThermoSystem

numberOfTimeStepsInInterval

int numberOfTimeStepsInInterval

outletBoundaryType

TimeSeries.OutletBoundaryType outletBoundaryType

Outlet boundary condition type.

outletMolarFlowRate

double[] outletMolarFlowRate

outletMolarFlowRates

double[] outletMolarFlowRates

outletPressure

double[] outletPressure

Outlet pressures for each time interval (used when outletBoundaryType == PRESSURE).

outletPressures

double[] outletPressures

Expanded outlet pressures for each time step.

outletVelocities

double[] outletVelocities

Expanded outlet velocities for each time step.

outletVelocity

double[] outletVelocity

Outlet velocities for each time interval (used when outletBoundaryType == FLOW).

thermoSystems

SystemInterface[] thermoSystems

times

double[] times

timeSeries

double[] timeSeries

timeSteps

double[] timeSteps

Package neqsim.integration

Class neqsim.integration.EOSComparison

class EOSComparison extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

components

Map<String,Double> components

Components and their mole fractions.

eosTypes

List<EOSComparison.EOSType> eosTypes

EOS types to compare.

multiPhaseCheck

boolean multiPhaseCheck

Whether to include multi-phase check.

pressure

double pressure

Pressure in bara.

temperature

double temperature

Temperature in Kelvin.

Class neqsim.integration.EOSComparison.ComparisonResult

class ComparisonResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

components

Map<String,Double> components

pressure

double pressure

results

List<EOSComparison.EOSResult> results

temperature

double temperature

Class neqsim.integration.EOSComparison.EOSResult

class EOSResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

compressibilityFactor

double compressibilityFactor

Compressibility factor.

density_kgm3

double density_kgm3

Mixture density in kg/m3.

enthalpy_Jmol

double enthalpy_Jmol

Molar enthalpy in J/mol.

entropy_JmolK

double entropy_JmolK

Molar entropy in J/(mol*K).

eosType

EOSComparison.EOSType eosType

EOS type used.

error

String error

Error message if evaluation failed.

gasCp_JmolK

double gasCp_JmolK

Gas heat capacity at constant pressure in J/(mol*K).

gasDensity_kgm3

double gasDensity_kgm3

Gas phase density in kg/m3.

gasViscosity_cP

double gasViscosity_cP

Gas viscosity in cP.

gasZfactor

double gasZfactor

Gas compressibility factor.

molarMass_kgmol

double molarMass_kgmol

Molar mass in kg/mol.

numberOfPhases

int numberOfPhases

Number of phases found.

oilDensity_kgm3

double oilDensity_kgm3

Oil phase density in kg/m3.

oilViscosity_cP

double oilViscosity_cP

Oil viscosity in cP.

vapourFraction

double vapourFraction

Vapour fraction (beta).

Package neqsim.mathlib.nonlinearsolver

Class neqsim.mathlib.nonlinearsolver.NewtonRhapson

class NewtonRhapson extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

derivVal

double derivVal

dubDerivVal

double dubDerivVal

funkVal

double funkVal

maxIterations

int maxIterations

order

int order

polyConstants

double[] polyConstants

x

double x

xNew

double xNew

xNew2

double xNew2

Class neqsim.mathlib.nonlinearsolver.NumericalDerivative

class NumericalDerivative extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.mathlib.nonlinearsolver.SysNewtonRhapson

class SysNewtonRhapson extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

avscp

double avscp

beta

double beta

dPmax

double dPmax

ds

double ds

dTmax

double dTmax

etterCP

boolean etterCP

etterCP2

boolean etterCP2

fvec

Jama.Matrix fvec

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

Jac

Jama.Matrix Jac

neq

int neq

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

solver

NewtonRhapson solver

speceq

int speceq

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

u

Jama.Matrix u

uold

Jama.Matrix uold

xcoef

Jama.Matrix xcoef

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Package neqsim.physicalproperties

Class neqsim.physicalproperties.PhysicalPropertyHandler

class PhysicalPropertyHandler extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

aqueousPhysicalProperties

PhysicalProperties aqueousPhysicalProperties

gasPhysicalProperties

PhysicalProperties gasPhysicalProperties

mixingRule

PhysicalPropertyMixingRule mixingRule

oilPhysicalProperties

PhysicalProperties oilPhysicalProperties

solidPhysicalProperties

PhysicalProperties solidPhysicalProperties

Package neqsim.physicalproperties.interfaceproperties

Class neqsim.physicalproperties.interfaceproperties.InterfaceProperties

class InterfaceProperties extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

adsorptionCalc

AdsorptionInterface[] adsorptionCalc

gasAqueousSurfaceTensionCalc

SurfaceTensionInterface gasAqueousSurfaceTensionCalc

gasLiquidSurfaceTensionCalc

SurfaceTensionInterface gasLiquidSurfaceTensionCalc

interfacialTensionModel

int interfacialTensionModel

liquidLiquidSurfaceTensionCalc

SurfaceTensionInterface liquidLiquidSurfaceTensionCalc

numberOfInterfaces

int numberOfInterfaces

surfaceTension

double[] surfaceTension

system

SystemInterface system

Package neqsim.physicalproperties.interfaceproperties.solidadsorption

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.AbstractAdsorptionModel

class AbstractAdsorptionModel extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

betSurfaceArea

double betSurfaceArea

BET surface area of adsorbent (m2/g).

calculated

boolean calculated

Whether adsorption has been calculated.

meanPoreRadius

double meanPoreRadius

Mean pore radius (nm).

poreVolume

double poreVolume

Total pore volume (cm3/g).

solidMaterial

String solidMaterial

Name/identifier of the solid adsorbent material.

surfaceExcess

double[] surfaceExcess

Surface excess for each component (mol/kg adsorbent).

surfaceExcessMolFraction

double[] surfaceExcessMolFraction

Mole fractions in adsorbed phase.

system

SystemInterface system

The thermodynamic system being modeled.

totalSurfaceExcess

double totalSurfaceExcess

Total surface excess of all components (mol/kg adsorbent).

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.BETAdsorption

class BETAdsorption extends AbstractAdsorptionModel implements Serializable

serialVersionUID:

1003L

Serialized Fields

cBET

double[] cBET

BET constants for each component (dimensionless).

maxLayers

int maxLayers

Number of adsorbed layers (for modified BET).

pSat

double[] pSat

Saturation pressures for each component (bar).

qMonolayer

double[] qMonolayer

Monolayer capacity for each component (mol/kg).

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.CapillaryCondensationModel

class CapillaryCondensationModel extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

adsorbedLayerThickness

double adsorbedLayerThickness

Adsorbed layer thickness (nm).

calculated

boolean calculated

Whether calculation has been performed.

condensateAmount

double[] condensateAmount

Capillary condensate amount for each component (mol/kg).

contactAngle

double contactAngle

Contact angle (radians).

integrationSteps

int integrationSteps

Number of integration steps for pore size distribution.

kelvinRadius

double[] kelvinRadius

Kelvin radii for each component (nm).

liquidMolarVolume

double[] liquidMolarVolume

Liquid molar volumes (m3/mol).

maxPoreRadius

double maxPoreRadius

Maximum pore radius (nm).

meanPoreRadius

double meanPoreRadius

Mean pore radius (nm).

minPoreRadius

double minPoreRadius

Minimum pore radius (nm).

poreRadiusStdDev

double poreRadiusStdDev

Pore radius standard deviation (nm).

poreType

CapillaryCondensationModel.PoreType poreType

Pore type (cylindrical, slit, spherical).

pSat

double[] pSat

Saturation pressures (bar).

surfaceTension

double[] surfaceTension

Surface tensions (N/m).

system

SystemInterface system

The thermodynamic system.

totalPoreVolume

double totalPoreVolume

Total pore volume (cm3/g).

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.FreundlichAdsorption

class FreundlichAdsorption extends AbstractAdsorptionModel implements Serializable

serialVersionUID:

1005L

Serialized Fields

heatOfAdsorption

double[] heatOfAdsorption

Heat of adsorption for temperature correction (J/mol).

kFreundlich

double[] kFreundlich

Freundlich capacity constants for each component (mol/kg/bar^(1/n)).

nFreundlich

double[] nFreundlich

Freundlich intensity parameters for each component (dimensionless).

tempRef

double[] tempRef

Reference temperature for parameters (K).

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.LangmuirAdsorption

class LangmuirAdsorption extends AbstractAdsorptionModel implements Serializable

serialVersionUID:

1002L

Serialized Fields

heatOfAdsorption

double[] heatOfAdsorption

Heat of adsorption for temperature correction (J/mol).

kLangmuir

double[] kLangmuir

Langmuir equilibrium constants (1/bar).

parametersManuallySet

boolean parametersManuallySet

Whether parameters have been manually set (skip DB loading).

qmax

double[] qmax

Maximum adsorption capacity for each component (mol/kg).

tempRef

double[] tempRef

Reference temperature for parameters (K).

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.PotentialTheoryAdsorption

class PotentialTheoryAdsorption extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double[] beta

calculated

boolean calculated

compositionSurface

double[][] compositionSurface

deltaz

double[] deltaz

eps0

double[] eps0

epsField

double[][] epsField

fugacityField

double[][] fugacityField

integrationSteps

int integrationSteps

pressureField

double[] pressureField

solidMaterial

String solidMaterial

surfaceExcess

double[] surfaceExcess

surfaceExcessMolFraction

double[] surfaceExcessMolFraction

system

SystemInterface system

totalSurfaceExcess

double totalSurfaceExcess

z0

double[] z0

zField

double[][] zField

Class neqsim.physicalproperties.interfaceproperties.solidadsorption.SipsAdsorption

class SipsAdsorption extends AbstractAdsorptionModel implements Serializable

serialVersionUID:

1006L

Serialized Fields

heatOfAdsorption

double[] heatOfAdsorption

Heat of adsorption for temperature correction (J/mol).

kSips

double[] kSips

Sips affinity constants for each component (1/bar).

nSips

double[] nSips

Heterogeneity parameters for each component (dimensionless).

parametersManuallySet

boolean parametersManuallySet

Whether parameters have been manually set (skip DB loading).

qmax

double[] qmax

Maximum adsorption capacity for each component (mol/kg).

tempRef

double[] tempRef

Reference temperature for parameters (K).

Package neqsim.physicalproperties.interfaceproperties.surfacetension

Class neqsim.physicalproperties.interfaceproperties.surfacetension.CDFTSurfaceTension

class CDFTSurfaceTension extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Serialized Fields

attractiveRangeFactor

double attractiveRangeFactor

Attractive range factor controlling the kernel half-width relative to the molecular diameter.

The step-function kernel extends from -lambda*dMol to +lambda*dMol. The physical motivation is that the attractive pair potential (e.g., Lennard-Jones) has a range of approximately 1.5-2.5 molecular diameters beyond the hard core. The default value of 0.5 corresponds to the original kernel width of one molecular diameter. Increasing this factor broadens the kernel while preserving the normalisation integral (equal to -2a), which increases the second moment of the kernel and thereby increases the predicted surface tension.

A universal value of approximately 1.5 has been found to reproduce experimental surface tensions within 5-10% for alkanes C1-C10, nitrogen, and CO2 without any substance-specific adjustable parameters.

domainHalfWidthInD

double domainHalfWidthInD

Half-width of the computational domain in units of molecular diameter.

nGrid

int nGrid

Number of grid points for the density profile.

usePredictiveMode

boolean usePredictiveMode

When true, the kernel range factor is automatically computed from the acentric factor and a critical-exponent correction is applied, giving improved predictions without user tuning.

Class neqsim.physicalproperties.interfaceproperties.surfacetension.FirozabadiRamleyInterfaceTension

class FirozabadiRamleyInterfaceTension extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.interfaceproperties.surfacetension.GTSurfaceTension

class GTSurfaceTension extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Serialized Fields

useFullGT

int useFullGT

Class neqsim.physicalproperties.interfaceproperties.surfacetension.GTSurfaceTensionSimple

class GTSurfaceTensionSimple extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcInfluenceParameter

boolean calcInfluenceParameter

den_interface

double[][] den_interface

dmudn2

double[][][] dmudn2

influenceParam

double[] influenceParam

ite_step

int ite_step

localSystem

SystemInterface localSystem

pressure_interface

double[] pressure_interface

z_step

double[] z_step

Class neqsim.physicalproperties.interfaceproperties.surfacetension.LGTSurfaceTension

class LGTSurfaceTension extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Serialized Fields

den_interface

double[][] den_interface

ite_step

int ite_step

localSystem

SystemInterface localSystem

pressure_interface

double[] pressure_interface

z_step

double[] z_step

Class neqsim.physicalproperties.interfaceproperties.surfacetension.ParachorSurfaceTension

class ParachorSurfaceTension extends SurfaceTension implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.interfaceproperties.surfacetension.SurfaceTension

class SurfaceTension extends InterfaceProperties implements Serializable

serialVersionUID:

1000L

Serialized Fields

system

SystemInterface system

Package neqsim.physicalproperties.methods

Class neqsim.physicalproperties.methods.PhysicalPropertyMethod

class PhysicalPropertyMethod extends Object implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.commonphasephysicalproperties

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.CommonPhysicalPropertyMethod

class CommonPhysicalPropertyMethod extends PhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

phase

PhysicalProperties phase

Package neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.ChungDenseConductivityMethod

class ChungDenseConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.CO2ConductivityMethod

class CO2ConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.Conductivity

class Conductivity extends CommonPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.FrictionTheoryConductivityMethod

class FrictionTheoryConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

fc

double[] fc

Chung Fc correction factor.

omegaCond

double[] omegaCond

Chung collision integral parameter.

pureComponentConductivity

double[] pureComponentConductivity

Pure component dilute-gas conductivities in W/(m*K).

pureComponentViscosity

double[] pureComponentViscosity

Pure component dilute-gas viscosities in Pa*s.

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.HydrogenConductivityMethod

class HydrogenConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.PFCTConductivityMethodMod86

class PFCTConductivityMethodMod86 extends Conductivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

condRefA

double condRefA

condRefB

double condRefB

condRefC

double condRefC

condRefE

double condRefE

condRefF

double condRefF

condRefG

double condRefG

condRefJ

double[] condRefJ

Dense-fluid thermal conductivity coefficients for methane above freezing. From Younglove-Ely (1987) / Friend et al. (1989).

condRefK

double[] condRefK

Dense-fluid thermal conductivity coefficients for methane near freezing.

GVcoef

double[] GVcoef

Dilute-gas thermal conductivity coefficients for methane reference fluid. Updated from Friend, Ely, Ingham (1989) JPCRD 18(2), 583-638. lambda0 = sum(GVcoef[k] * T^((k-3)/3)) in mW/(m*K). Valid 91 K to 700 K with improved high-temperature behavior over the original Hanley (1977) coefficients.

Mmix

double Mmix

PCmix

double PCmix

TCmix

double TCmix

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.conductivity.WaterConductivityMethod

class WaterConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.commonphasephysicalproperties.diffusivity

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.diffusivity.CorrespondingStatesDiffusivity

class CorrespondingStatesDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficients

double[][] binaryDiffusionCoefficients

binaryLennardJonesOmega

double[][] binaryLennardJonesOmega

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.diffusivity.Diffusivity

class Diffusivity extends CommonPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficients

double[][] binaryDiffusionCoefficients

binaryLennardJonesOmega

double[][] binaryLennardJonesOmega

effectiveDiffusionCoefficient

double[] effectiveDiffusionCoefficient

Package neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.CO2ViscosityMethod

class CO2ViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.FrictionTheoryViscosityMethod

class FrictionTheoryViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

chungE

double[] chungE

Fc

double[] Fc

kapa_fconst

double[][] kapa_fconst

kapac_fconst

double kapac_fconst

kapr_fconst

double[][] kapr_fconst

kaprc_fconst

double kaprc_fconst

kaprr_fconst

double kaprr_fconst

kaprrc_fconst

double kaprrc_fconst

omegaVisc

double[] omegaVisc

pureComponentViscosity

double[] pureComponentViscosity

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.KTAViscosityMethod

class KTAViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.KTAViscosityMethodMod

class KTAViscosityMethodMod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.LBCViscosityMethod

class LBCViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

denseContributionParameters

double[] denseContributionParameters

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.LeeViscosityMethod

class LeeViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.MethaneViscosityMethod

class MethaneViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.MuznyModViscosityMethod

class MuznyModViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.MuznyViscosityMethod

class MuznyViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.PFCTViscosityMethod

class PFCTViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

cspViscosityCorrectionFactors

double[] cspViscosityCorrectionFactors

CSP viscosity correction factors for temperature, pressure, molar mass and alpha terms.

GVcoef

double[] GVcoef

referenceSystem

SystemInterface referenceSystem

viscRefJ

double[] viscRefJ

visRefA

double visRefA

visRefB

double visRefB

visRefC

double visRefC

visRefE

double visRefE

visRefF

double visRefF

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.PFCTViscosityMethodHeavyOil

class PFCTViscosityMethodHeavyOil extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

cspViscosityCorrectionFactors

double[] cspViscosityCorrectionFactors

CSP viscosity correction factors for temperature, pressure, molar mass and alpha terms.

GVcoef

double[] GVcoef

phaseTypeNumb

int phaseTypeNumb

referenceSystem

SystemInterface referenceSystem

viscRefJ

double[] viscRefJ

viscRefK

double[] viscRefK

visRefA

double visRefA

visRefB

double visRefB

visRefC

double visRefC

visRefE

double visRefE

visRefF

double visRefF

visRefG

double visRefG

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.PFCTViscosityMethodMod86

class PFCTViscosityMethodMod86 extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

cspViscosityCorrectionFactors

double[] cspViscosityCorrectionFactors

CSP viscosity correction factors for temperature, pressure, molar mass and alpha terms.

GVcoef

double[] GVcoef

phaseTypeNumb

int phaseTypeNumb

referenceSystem

SystemInterface referenceSystem

viscRefJ

double[] viscRefJ

viscRefK

double[] viscRefK

visRefA

double visRefA

visRefB

double visRefB

visRefC

double visRefC

visRefE

double visRefE

visRefF

double visRefF

visRefG

double visRefG

Class neqsim.physicalproperties.methods.commonphasephysicalproperties.viscosity.Viscosity

class Viscosity extends CommonPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

pureComponentViscosity

double[] pureComponentViscosity

Package neqsim.physicalproperties.methods.gasphysicalproperties

Class neqsim.physicalproperties.methods.gasphysicalproperties.GasPhysicalPropertyMethod

class GasPhysicalPropertyMethod extends PhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryEnergyParameter

double[][] binaryEnergyParameter

binaryMolecularDiameter

double[][] binaryMolecularDiameter

binaryMolecularMass

double[][] binaryMolecularMass

gasPhase

PhysicalProperties gasPhase

Package neqsim.physicalproperties.methods.gasphysicalproperties.conductivity

Class neqsim.physicalproperties.methods.gasphysicalproperties.conductivity.ChungConductivityMethod

class ChungConductivityMethod extends Conductivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

pureComponentConductivity

double[] pureComponentConductivity

Class neqsim.physicalproperties.methods.gasphysicalproperties.conductivity.Conductivity

class Conductivity extends GasPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

Package neqsim.physicalproperties.methods.gasphysicalproperties.density

Class neqsim.physicalproperties.methods.gasphysicalproperties.density.Density

class Density extends GasPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.gasphysicalproperties.diffusivity

Class neqsim.physicalproperties.methods.gasphysicalproperties.diffusivity.Diffusivity

class Diffusivity extends GasPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficients

double[][] binaryDiffusionCoefficients

binaryLennardJonesOmega

double[][] binaryLennardJonesOmega

effectiveDiffusionCoefficient

double[] effectiveDiffusionCoefficient

enableTemperatureWarnings

boolean enableTemperatureWarnings

Flag to enable/disable temperature range warnings.

useDiffusionLJOverride

boolean useDiffusionLJOverride

Flag to enable textbook LJ parameter override for improved diffusion accuracy.

Class neqsim.physicalproperties.methods.gasphysicalproperties.diffusivity.FullerSchettlerGiddingsDiffusivity

class FullerSchettlerGiddingsDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.gasphysicalproperties.diffusivity.WilkeLeeDiffusivity

class WilkeLeeDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficients

double[][] binaryDiffusionCoefficients

binaryLennardJonesOmega

double[][] binaryLennardJonesOmega

Package neqsim.physicalproperties.methods.gasphysicalproperties.viscosity

Class neqsim.physicalproperties.methods.gasphysicalproperties.viscosity.ChungViscosityMethod

class ChungViscosityMethod extends Viscosity implements Serializable

serialVersionUID:

1000L

Serialized Fields

chungE

double[] chungE

chungHPcoefs

double[][] chungHPcoefs

Fc

double[] Fc

omegaVisc

double[] omegaVisc

pureComponentViscosity

double[] pureComponentViscosity

relativeViscosity

double[] relativeViscosity

Class neqsim.physicalproperties.methods.gasphysicalproperties.viscosity.Viscosity

class Viscosity extends GasPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.liquidphysicalproperties

Class neqsim.physicalproperties.methods.liquidphysicalproperties.LiquidPhysicalPropertyMethod

class LiquidPhysicalPropertyMethod extends PhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

liquidPhase

PhysicalProperties liquidPhase

Package neqsim.physicalproperties.methods.liquidphysicalproperties.conductivity

Class neqsim.physicalproperties.methods.liquidphysicalproperties.conductivity.Conductivity

class Conductivity extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

pureComponentConductivity

double[] pureComponentConductivity

Class neqsim.physicalproperties.methods.liquidphysicalproperties.conductivity.FilippovConductivityMethod

class FilippovConductivityMethod extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

filippovCoefficient

double filippovCoefficient

Filippov binary interaction parameter. Default 0.72 (original Filippov).

pureComponentConductivity

double[] pureComponentConductivity

Pure component conductivities at current temperature.

usePressureCorrection

boolean usePressureCorrection

Whether to apply Missenard pressure correction.

Package neqsim.physicalproperties.methods.liquidphysicalproperties.density

Class neqsim.physicalproperties.methods.liquidphysicalproperties.density.Costald

class Costald extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1002L

Serialized Fields

usePolarCorrection

boolean usePolarCorrection

Whether to apply the NBS (NASTALD) polar correction of Thomson, Brobst & Hankinson (1982). When enabled, uses substance-specific polar parameters to improve accuracy for polar compounds (water, alcohols, glycols, ammonia).

Class neqsim.physicalproperties.methods.liquidphysicalproperties.density.Density

class Density extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.density.Rackett

class Rackett extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1002L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.density.Water

class Water extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.AmineDiffusivity

class AmineDiffusivity extends SiddiqiLucasMethod implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.CO2water

class CO2water extends Diffusivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.HaydukMinhasDiffusivity

class HaydukMinhasDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

solventType

HaydukMinhasDiffusivity.SolventType solventType

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.HighPressureDiffusivity

class HighPressureDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseDiffusivityModel

Diffusivity baseDiffusivityModel

Base diffusivity model for low-pressure calculations.

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.SiddiqiLucasMethod

class SiddiqiLucasMethod extends Diffusivity implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSelectCorrelation

boolean autoSelectCorrelation

Flag to enable automatic selection between aqueous and non-aqueous correlations. When false (default), always uses the aqueous correlation for backward compatibility. When true, auto-detects the solvent type and selects the appropriate correlation.

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.TynCalusDiffusivity

class TynCalusDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.diffusivity.WilkeChangDiffusivity

class WilkeChangDiffusivity extends Diffusivity implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.liquidphysicalproperties.viscosity

Class neqsim.physicalproperties.methods.liquidphysicalproperties.viscosity.AmineViscosity

class AmineViscosity extends Viscosity implements Serializable

serialVersionUID:

1001L

Class neqsim.physicalproperties.methods.liquidphysicalproperties.viscosity.Viscosity

class Viscosity extends LiquidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

pureComponentViscosity

double[] pureComponentViscosity

Class neqsim.physicalproperties.methods.liquidphysicalproperties.viscosity.Water

class Water extends Viscosity implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.methodinterface

Package neqsim.physicalproperties.methods.solidphysicalproperties

Class neqsim.physicalproperties.methods.solidphysicalproperties.SolidPhysicalPropertyMethod

class SolidPhysicalPropertyMethod extends PhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

solidPhase

PhysicalProperties solidPhase

Package neqsim.physicalproperties.methods.solidphysicalproperties.conductivity

Class neqsim.physicalproperties.methods.solidphysicalproperties.conductivity.Conductivity

class Conductivity extends SolidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductivity

double conductivity

Package neqsim.physicalproperties.methods.solidphysicalproperties.density

Class neqsim.physicalproperties.methods.solidphysicalproperties.density.Density

class Density extends SolidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.methods.solidphysicalproperties.diffusivity

Class neqsim.physicalproperties.methods.solidphysicalproperties.diffusivity.Diffusivity

class Diffusivity extends SolidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficients

double[][] binaryDiffusionCoefficients

effectiveDiffusionCoefficient

double[] effectiveDiffusionCoefficient

Package neqsim.physicalproperties.methods.solidphysicalproperties.viscosity

Class neqsim.physicalproperties.methods.solidphysicalproperties.viscosity.Viscosity

class Viscosity extends SolidPhysicalPropertyMethod implements Serializable

serialVersionUID:

1000L

Serialized Fields

pureComponentViscosity

double[] pureComponentViscosity

Package neqsim.physicalproperties.mixingrule

Class neqsim.physicalproperties.mixingrule.PhysicalPropertyMixingRule

class PhysicalPropertyMixingRule extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

Gij

double[][] Gij

Package neqsim.physicalproperties.system

Class neqsim.physicalproperties.system.PhysicalProperties

class PhysicalProperties extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

binaryDiffusionCoefficientMethod

int binaryDiffusionCoefficientMethod

conductivity

double conductivity

conductivityCalc

ConductivityInterface conductivityCalc

density

double density

densityCalc

DensityInterface densityCalc

diffusivityCalc

DiffusivityInterface diffusivityCalc

kinematicViscosity

double kinematicViscosity

mixingRule

PhysicalPropertyMixingRuleInterface mixingRule

multicomponentDiffusionMethod

int multicomponentDiffusionMethod

phase

PhaseInterface phase

viscosity

double viscosity

viscosityCalc

ViscosityInterface viscosityCalc

waxViscosityParameter

double[] waxViscosityParameter

Package neqsim.physicalproperties.system.commonphasephysicalproperties

Class neqsim.physicalproperties.system.commonphasephysicalproperties.DefaultPhysicalProperties

class DefaultPhysicalProperties extends PhysicalProperties implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.system.gasphysicalproperties

Class neqsim.physicalproperties.system.gasphysicalproperties.AirPhysicalProperties

class AirPhysicalProperties extends GasPhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.gasphysicalproperties.GasPhysicalProperties

class GasPhysicalProperties extends PhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.gasphysicalproperties.NaturalGasPhysicalProperties

class NaturalGasPhysicalProperties extends GasPhysicalProperties implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.system.liquidphysicalproperties

Class neqsim.physicalproperties.system.liquidphysicalproperties.AminePhysicalProperties

class AminePhysicalProperties extends LiquidPhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.liquidphysicalproperties.CO2waterPhysicalProperties

class CO2waterPhysicalProperties extends PhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.liquidphysicalproperties.GlycolPhysicalProperties

class GlycolPhysicalProperties extends LiquidPhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.liquidphysicalproperties.LiquidPhysicalProperties

class LiquidPhysicalProperties extends PhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.liquidphysicalproperties.SaltWaterPhysicalProperties

class SaltWaterPhysicalProperties extends WaterPhysicalProperties implements Serializable

serialVersionUID:

1000L

Class neqsim.physicalproperties.system.liquidphysicalproperties.WaterPhysicalProperties

class WaterPhysicalProperties extends LiquidPhysicalProperties implements Serializable

serialVersionUID:

1000L

Package neqsim.physicalproperties.system.solidphysicalproperties

Class neqsim.physicalproperties.system.solidphysicalproperties.SolidPhysicalProperties

class SolidPhysicalProperties extends PhysicalProperties implements Serializable

serialVersionUID:

1000L

Package neqsim.process

Class neqsim.process.SimulationBaseClass

class SimulationBaseClass extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcIdentifier

UUID calcIdentifier

Unique identifier of which solve/run call was last called successfully.

calculateSteadyState

boolean calculateSteadyState

runInSteps

boolean runInSteps

time

double time

Package neqsim.process.advisory

Class neqsim.process.advisory.PredictionResult

class PredictionResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

assumptions

List<String> assumptions

explanation

String explanation

horizon

Duration horizon

overallConfidence

double overallConfidence

predictedValues

Map<String, PredictionResult.PredictedValue> predictedValues

predictionTime

Instant predictionTime

scenarioName

String scenarioName

status

PredictionResult.PredictionStatus status

violations

List<PredictionResult.ConstraintViolation> violations

Class neqsim.process.advisory.PredictionResult.ConstraintViolation

class ConstraintViolation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraintName

String constraintName

limitValue

double limitValue

predictedValue

double predictedValue

severity

PredictionResult.ConstraintViolation.Severity severity

suggestedAction

String suggestedAction

timeToViolation

Duration timeToViolation

unit

String unit

variableName

String variableName

Class neqsim.process.advisory.PredictionResult.PredictedValue

class PredictedValue extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

confidence

double confidence

lower95

double lower95

mean

double mean

standardDeviation

double standardDeviation

unit

String unit

upper95

double upper95

Package neqsim.process.alarm

Class neqsim.process.alarm.AlarmConfig

class AlarmConfig extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

deadband

double deadband

delay

double delay

highHighLimit

Double highHighLimit

highLimit

Double highLimit

lowLimit

Double lowLimit

lowLowLimit

Double lowLowLimit

unit

String unit

Class neqsim.process.alarm.AlarmEvent

class AlarmEvent extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

level

AlarmLevel level

source

String source

timestamp

double timestamp

type

AlarmEventType type

value

double value

Class neqsim.process.alarm.AlarmState

class AlarmState extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acknowledged

boolean acknowledged

activeLevel

AlarmLevel activeLevel

lastUpdateTime

double lastUpdateTime

lastValue

double lastValue

pendingLevel

AlarmLevel pendingLevel

pendingTimer

double pendingTimer

shelved

boolean shelved

Whether this alarm point is shelved (suppressed).

shelveExpiry

double shelveExpiry

Simulation time when shelving expires (Double.NaN if indefinite).

shelveReason

String shelveReason

Reason recorded when alarm was shelved.

Class neqsim.process.alarm.AlarmStatusSnapshot

class AlarmStatusSnapshot extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acknowledged

boolean acknowledged

level

AlarmLevel level

source

String source

timestamp

double timestamp

value

double value

Class neqsim.process.alarm.ProcessAlarmManager

class ProcessAlarmManager extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionHandlers

List<AlarmActionHandler> actionHandlers

devices

List<MeasurementDeviceInterface> devices

history

List<AlarmEvent> history

Package neqsim.process.automation

Class neqsim.process.automation.AutomationDiagnostics

class AutomationDiagnostics extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

history

List<AutomationDiagnostics.OperationRecord> history

learnedCorrections

Map<String,String> learnedCorrections

maxHistorySize

int maxHistorySize

Class neqsim.process.automation.AutomationDiagnostics.DiagnosticResult

class DiagnosticResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoCorrection

String autoCorrection

category

AutomationDiagnostics.ErrorCategory category

context

Map<String,Object> context

errorMessage

String errorMessage

originalInput

String originalInput

remediation

String remediation

suggestions

List<String> suggestions

Class neqsim.process.automation.SimulationVariable

class SimulationVariable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

address

String address

defaultUnit

String defaultUnit

description

String description

name

String name

type

SimulationVariable.VariableType type

Package neqsim.process.calibration

Class neqsim.process.calibration.BatchParameterEstimator

class BatchParameterEstimator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dataPoints

List<BatchParameterEstimator.DataPoint> dataPoints

Data points for calibration.

lastResult

BatchResult lastResult

Result from the last solve.

maxIterations

int maxIterations

Maximum number of iterations.

measuredVariables

List<BatchParameterEstimator.MeasuredVariable> measuredVariables

Measured variables.

processSystem

ProcessSystem processSystem

The process system to calibrate.

tunableParameters

List<BatchParameterEstimator.TunableParameter> tunableParameters

Tunable parameters.

useAnalyticalJacobian

boolean useAnalyticalJacobian

Whether to use analytical Jacobian from ProcessSensitivityAnalyzer.

Class neqsim.process.calibration.BatchParameterEstimator.DataPoint

class DataPoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

conditions

Map<String,Double> conditions

measurements

Map<String,Double> measurements

Class neqsim.process.calibration.BatchParameterEstimator.MeasuredVariable

class MeasuredVariable extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

path

String path

standardDeviation

double standardDeviation

unit

String unit

Class neqsim.process.calibration.BatchParameterEstimator.TunableParameter

class TunableParameter extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

initialGuess

double initialGuess

lowerBound

double lowerBound

path

String path

unit

String unit

upperBound

double upperBound

Class neqsim.process.calibration.BatchResult

class BatchResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bias

double bias

Bias (mean signed deviation).

chiSquare

double chiSquare

Chi-square value (sum of squared weighted residuals).

confidenceIntervalLower

double[] confidenceIntervalLower

95% confidence interval lower bounds.

confidenceIntervalUpper

double[] confidenceIntervalUpper

95% confidence interval upper bounds.

converged

boolean converged

Whether the optimization converged.

correlationMatrix

double[][] correlationMatrix

Correlation matrix of parameter estimates.

covarianceMatrix

double[][] covarianceMatrix

Covariance matrix of parameter estimates.

dataPointCount

int dataPointCount

Number of data points used.

estimates

double[] estimates

Optimized parameter values.

iterations

int iterations

Number of iterations used.

meanAbsoluteDeviation

double meanAbsoluteDeviation

Mean absolute deviation.

parameterNames

String[] parameterNames

Parameter names in order.

rmse

double rmse

Root mean square error.

rSquared

double rSquared

R-squared (coefficient of determination).

uncertainties

double[] uncertainties

Standard deviations of parameter estimates.

Class neqsim.process.calibration.CalibrationQuality

class CalibrationQuality extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coverage

double coverage

mae

double mae

mse

double mse

r2

double r2

rmse

double rmse

sampleCount

int sampleCount

timestamp

Instant timestamp

Class neqsim.process.calibration.CalibrationResult

class CalibrationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

errorMessage

String errorMessage

iterations

int iterations

parameters

Map<String,Double> parameters

rmse

double rmse

samplesUsed

int samplesUsed

success

boolean success

Class neqsim.process.calibration.EnKFParameterEstimator

class EnKFParameterEstimator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ensemble

double[][] ensemble

ensembleMean

double[] ensembleMean

ensembleSize

int ensembleSize

ensembleStd

double[] ensembleStd

history

List<EnKFParameterEstimator.EnKFResult> history

initialized

boolean initialized

lastPrediction

double[] lastPrediction

maxChangePerUpdate

double maxChangePerUpdate

measuredVariables

List<EnKFParameterEstimator.MeasuredVariableSpec> measuredVariables

Measured variables to match.

previousEstimate

double[] previousEstimate

processNoiseStd

double processNoiseStd

processSystem

ProcessSystem processSystem

The process system to calibrate.

tunableParameters

List<EnKFParameterEstimator.TunableParameterSpec> tunableParameters

Tunable parameters to estimate.

updateCount

int updateCount

Class neqsim.process.calibration.EnKFParameterEstimator.EnKFResult

class EnKFResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

anomalyDetected

boolean anomalyDetected

estimates

double[] estimates

measurements

double[] measurements

predictions

double[] predictions

rmse

double rmse

step

int step

uncertainties

double[] uncertainties

Class neqsim.process.calibration.EnKFParameterEstimator.MeasuredVariableSpec

class MeasuredVariableSpec extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

noiseStd

double noiseStd

Measurement noise standard deviation.

path

String path

Path to the variable (e.g., "Separator.gasOutStream.temperature").

unit

String unit

Unit of measurement.

Class neqsim.process.calibration.EnKFParameterEstimator.TunableParameterSpec

class TunableParameterSpec extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

initialUncertainty

double initialUncertainty

Initial uncertainty (standard deviation).

initialValue

double initialValue

Initial/prior value.

maxValue

double maxValue

Maximum allowed value.

minValue

double minValue

Minimum allowed value.

path

String path

Path to the parameter (e.g., "Pipe1.heatTransferCoefficient").

unit

String unit

Unit of measurement.

Class neqsim.process.calibration.EstimationTestHarness

class EstimationTestHarness extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

measurements

List<EstimationTestHarness.MeasurementSpec> measurements

Measurements to generate.

parameters

List<EstimationTestHarness.ParameterWithTruth> parameters

Parameters with true values.

processSystem

ProcessSystem processSystem

The process system to test with.

Class neqsim.process.calibration.EstimationTestHarness.MeasurementSpec

class MeasurementSpec extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

noiseStd

double noiseStd

path

String path

unit

String unit

Class neqsim.process.calibration.EstimationTestHarness.MonteCarloReport

class MonteCarloReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

meanCoverage

double meanCoverage

meanRMSE

double meanRMSE

numTrials

int numTrials

percentile95RMSE

double percentile95RMSE

stdRMSE

double stdRMSE

stepsPerTrial

int stepsPerTrial

successRate

double successRate

Class neqsim.process.calibration.EstimationTestHarness.ParameterWithTruth

class ParameterWithTruth extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxBound

double maxBound

minBound

double minBound

path

String path

trueValue

double trueValue

Class neqsim.process.calibration.EstimationTestHarness.TestReport

class TestReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coverageRate

double coverageRate

estimateHistory

List<double[]> estimateHistory

finalEstimates

double[] finalEstimates

finalUncertainties

double[] finalUncertainties

maxError

double maxError

meanAbsoluteError

double meanAbsoluteError

numSteps

int numSteps

rmse

double rmse

rmseHistory

List<double[]> rmseHistory

stepsToConverge

int stepsToConverge

testName

String testName

trueValues

double[] trueValues

Class neqsim.process.calibration.OnlineCalibrator

class OnlineCalibrator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

calibrationHistory

List<OnlineCalibrator.DataPoint> calibrationHistory

deviationThreshold

double deviationThreshold

lastCalibration

Instant lastCalibration

lastQuality

CalibrationQuality lastQuality

maxHistorySize

int maxHistorySize

processSystem

ProcessSystem processSystem

tunableParameters

List<String> tunableParameters

Class neqsim.process.calibration.OnlineCalibrator.DataPoint

class DataPoint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

conditions

Map<String,Double> conditions

measurements

Map<String,Double> measurements

predictions

Map<String,Double> predictions

timestamp

Instant timestamp

Package neqsim.process.conditionmonitor

Class neqsim.process.conditionmonitor.ConditionMonitor

class ConditionMonitor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

process

ProcessSystem process

refprocess

ProcessSystem refprocess

report

String report

Package neqsim.process.controllerdevice

Class neqsim.process.controllerdevice.ControllerDeviceBaseClass

class ControllerDeviceBaseClass extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

bumplessTransferPending

boolean bumplessTransferPending

calcIdentifier

UUID calcIdentifier

Unique identifier of which solve/run call was last called successfully.

controllerSetPoint

double controllerSetPoint

derivativeFilterTime

double derivativeFilterTime

derivativeState

double derivativeState

error

double error

eventLog

List<ControllerEvent> eventLog

gainSchedule

NavigableMap<Double,double[]> gainSchedule

integralAbsoluteError

double integralAbsoluteError

isActive

boolean isActive

Kp

double Kp

lastTimeOutsideBand

double lastTimeOutsideBand

manualOutput

double manualOutput

maxResponse

double maxResponse

minResponse

double minResponse

mode

ControllerDeviceInterface.ControllerMode mode

oldError

double oldError

oldoldError

double oldoldError

propConstant

int propConstant

referenceDesignation

ReferenceDesignation referenceDesignation

response

double response

reverseActing

boolean reverseActing

setpointWeight

double setpointWeight

settlingTolerance

double settlingTolerance

stepResponseTuningMethod

ControllerDeviceInterface.StepResponseTuningMethod stepResponseTuningMethod

Td

double Td

Ti

double Ti

TintValue

double TintValue

totalTime

double totalTime

transmitter

MeasurementDeviceInterface transmitter

unit

String unit

Class neqsim.process.controllerdevice.ControllerEvent

class ControllerEvent extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

error

double error

measuredValue

double measuredValue

response

double response

setPoint

double setPoint

time

double time

Class neqsim.process.controllerdevice.LogicBlock

class LogicBlock extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcIdentifier

UUID calcIdentifier

UUID from last calculation.

equalityTolerance

double equalityTolerance

Tolerance for EQUAL comparison.

inputs

List<LogicBlock.LogicInput> inputs

Input definitions.

isActive

boolean isActive

Whether this block is active in the simulation.

operator

LogicBlock.Operator operator

Logic operator for this block.

output

double output

Current output state: 1.0 = true, 0.0 = false.

unit

String unit

Controller unit string.

Class neqsim.process.controllerdevice.LogicBlock.LogicInput

class LogicInput extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

comparator

LogicBlock.Comparator comparator

The comparator.

device

MeasurementDeviceInterface device

The measurement device.

threshold

double threshold

The threshold value.

Class neqsim.process.controllerdevice.ModelPredictiveController

class ModelPredictiveController extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcIdentifier

UUID calcIdentifier

controllerSetPoint

double controllerSetPoint

controlNames

List<String> controlNames

controlVector

double[] controlVector

controlWeight

double controlWeight

controlWeightsVector

double[] controlWeightsVector

estimationControls

List<Double> estimationControls

estimationMeasurements

List<Double> estimationMeasurements

estimationSampleTimes

List<Double> estimationSampleTimes

feedInitialised

boolean feedInitialised

isActive

boolean isActive

lastAppliedControl

double lastAppliedControl

lastControlVector

double[] lastControlVector

lastFeedComposition

Map<String,Double> lastFeedComposition

lastFeedRate

double lastFeedRate

lastSampledValue

double lastSampledValue

lastSampleTime

double lastSampleTime

maxControlMoveVector

double[] maxControlMoveVector

maxControlVector

double[] maxControlVector

maxMove

double maxMove

maxResponse

double maxResponse

minControlMoveVector

double[] minControlMoveVector

minControlVector

double[] minControlVector

minMove

double minMove

minResponse

double minResponse

moveWeight

double moveWeight

moveWeightsVector

double[] moveWeightsVector

movingHorizonEstimationEnabled

boolean movingHorizonEstimationEnabled

movingHorizonWindow

int movingHorizonWindow

outputWeight

double outputWeight

pendingFeedComposition

Map<String,Double> pendingFeedComposition

pendingFeedRate

double pendingFeedRate

predictedQualityValues

Map<String,Double> predictedQualityValues

predictionHorizon

int predictionHorizon

preferredControlValue

double preferredControlValue

preferredControlVector

double[] preferredControlVector

primaryControlIndex

int primaryControlIndex

processBias

double processBias

processGain

double processGain

response

double response

reverseActing

boolean reverseActing

timeConstant

double timeConstant

transmitter

MeasurementDeviceInterface transmitter

unit

String unit

Class neqsim.process.controllerdevice.SequentialFunctionChart

class SequentialFunctionChart extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeStepName

String activeStepName

elapsedTimeInStep

double elapsedTimeInStep

eventHistory

List<String> eventHistory

initialStepName

String initialStepName

name

String name

running

boolean running

steps

Map<String, SequentialFunctionChart.SfcStep> steps

totalElapsedTime

double totalElapsedTime

transitions

List<SequentialFunctionChart.SfcTransition> transitions

Class neqsim.process.controllerdevice.SequentialFunctionChart.SfcStep

class SfcStep extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

Class neqsim.process.controllerdevice.SequentialFunctionChart.SfcTransition

class SfcTransition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fromStep

String fromStep

toStep

String toStep

Class neqsim.process.controllerdevice.TransferFunctionBlock

class TransferFunctionBlock extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcIdentifier

UUID calcIdentifier

UUID from last calculation.

deadTime

double deadTime

Dead time (transport delay) theta [s].

deadTimeBuffer

double[] deadTimeBuffer

Circular buffer for dead time implementation.

deadTimeWriteIndex

int deadTimeWriteIndex

Write index for dead time buffer.

gain

double gain

Static gain K.

initialized

boolean initialized

Flag indicating whether internal states have been initialized.

inputBias

double inputBias

Input bias (steady-state input value).

isActive

boolean isActive

Whether block is active.

lagTime

double lagTime

First time constant (tau for first-order, tauLag for lead-lag, tau1 for second-order) [s].

lagTime2

double lagTime2

Second time constant (tau2 for second-order) [s].

leadTime

double leadTime

Lead time constant (tauLead for lead-lag) [s].

output

double output

Current output value.

outputBias

double outputBias

Output bias (steady-state output value).

state1

double state1

State for first-order lag filter (or lag portion of lead-lag).

state2

double state2

State for second time constant (second-order only).

transmitter

MeasurementDeviceInterface transmitter

Attached transmitter providing the input signal.

type

TransferFunctionBlock.Type type

Transfer function type.

unit

String unit

Engineering unit.

Package neqsim.process.controllerdevice.structure

Class neqsim.process.controllerdevice.structure.CascadeControllerStructure

class CascadeControllerStructure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

isActive

boolean isActive

output

double output

primaryController

ControllerDeviceInterface primaryController

secondaryController

ControllerDeviceInterface secondaryController

Class neqsim.process.controllerdevice.structure.FeedForwardControllerStructure

class FeedForwardControllerStructure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

disturbanceMeasurement

MeasurementDeviceInterface disturbanceMeasurement

feedbackController

ControllerDeviceInterface feedbackController

feedForwardGain

double feedForwardGain

isActive

boolean isActive

output

double output

Class neqsim.process.controllerdevice.structure.OverrideControllerStructure

class OverrideControllerStructure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

isActive

boolean isActive

output

double output

overrideActive

boolean overrideActive

overrideController

ControllerDeviceInterface overrideController

primaryController

ControllerDeviceInterface primaryController

selectionType

OverrideControllerStructure.SelectionType selectionType

Class neqsim.process.controllerdevice.structure.RatioControllerStructure

class RatioControllerStructure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

controller

ControllerDeviceInterface controller

isActive

boolean isActive

output

double output

ratio

double ratio

ratioMeasurement

MeasurementDeviceInterface ratioMeasurement

Class neqsim.process.controllerdevice.structure.SplitRangeControllerStructure

class SplitRangeControllerStructure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

controller

ControllerDeviceInterface controller

elementOutputs

double[] elementOutputs

isActive

boolean isActive

rangeHigh

double[] rangeHigh

rangeLow

double[] rangeLow

rawOutput

double rawOutput

Package neqsim.process.corrosion

Class neqsim.process.corrosion.AmmoniaCompatibility

class AmmoniaCompatibility extends Object implements Serializable

serialVersionUID:

1009L

Serialized Fields

anhydrous

boolean anhydrous

Whether this is anhydrous ammonia service.

compatible

boolean compatible

Whether material is compatible.

evaluated

boolean evaluated

Evaluated flag.

hardnessHRC

double hardnessHRC

Hardness in HRC.

materialType

String materialType

Material type.

maxAllowableHRC

double maxAllowableHRC

Maximum allowable hardness.

maxAllowableTempC

double maxAllowableTempC

Maximum allowable temperature for material.

nh3ConcentrationWtPct

double nh3ConcentrationWtPct

Ammonia concentration in wt%.

notes

List<String> notes

Notes.

o2InhibitorAdequate

boolean o2InhibitorAdequate

Whether O2 inhibitor is adequate.

o2InhibitorWtPct

double o2InhibitorWtPct

O2 content in wt% (inhibitor).

pressureBara

double pressureBara

Pressure in bara.

primaryMechanism

String primaryMechanism

Primary failure mechanism.

pwhtApplied

boolean pwhtApplied

Whether PWHT has been applied.

recommendedMaterial

String recommendedMaterial

Recommended material.

requiredO2InhibitorWtPct

double requiredO2InhibitorWtPct

Required O2 inhibitor level.

riskLevel

String riskLevel

Risk level.

stressRatio

double stressRatio

Applied stress as fraction of yield.

temperatureC

double temperatureC

Temperature in Celsius.

waterContentWtPct

double waterContentWtPct

Water content in wt%.

Class neqsim.process.corrosion.ChlorideSCCAssessment

class ChlorideSCCAssessment extends Object implements Serializable

serialVersionUID:

1006L

Serialized Fields

aqueousPH

double aqueousPH

pH of the aqueous phase.

chlorideConcentrationMgL

double chlorideConcentrationMgL

Chloride concentration in mg/L.

evaluated

boolean evaluated

Evaluated flag.

materialType

String materialType

Material type.

maxAllowableChlorideMgL

double maxAllowableChlorideMgL

Maximum allowable Cl⁻ at the given temperature.

maxAllowableTemperatureC

double maxAllowableTemperatureC

Maximum allowable temperature for this alloy at the given Cl⁻.

notes

List<String> notes

Notes.

oxygenPresent

boolean oxygenPresent

Whether dissolved oxygen is present (> 10 ppb).

recommendedUpgrade

String recommendedUpgrade

Recommended alloy upgrade if current is insufficient.

riskLevel

String riskLevel

Risk level.

sccAcceptable

boolean sccAcceptable

Whether SCC risk is acceptable.

stressRatio

double stressRatio

Applied stress as fraction of yield (0-1).

temperatureC

double temperatureC

Temperature in degrees Celsius.

temperatureMarginC

double temperatureMarginC

Temperature margin (positive = unsafe).

Class neqsim.process.corrosion.CO2CorrosionMaterialSelection

class CO2CorrosionMaterialSelection extends Object implements Serializable

serialVersionUID:

1005L

Serialized Fields

alternatives

List<String> alternatives

Material alternatives (ranked by cost).

carbonSteelViable

boolean carbonSteelViable

Whether carbon steel with inhibition is viable.

chlorideConcentrationMgL

double chlorideConcentrationMgL

Chloride concentration in mg/L.

co2CorrosionRateMmyr

double co2CorrosionRateMmyr

CO2 corrosion rate (uninhibited) in mm/yr.

co2PartialPressureBar

double co2PartialPressureBar

CO2 partial pressure in bar.

csCorrosionAllowanceMm

double csCorrosionAllowanceMm

Required corrosion allowance for CS option (mm).

designLifeYears

double designLifeYears

Design life in years.

evaluated

boolean evaluated

Evaluated flag.

h2sPartialPressureBar

double h2sPartialPressureBar

H2S partial pressure in bar.

inhibitionFeasible

boolean inhibitionFeasible

Whether continuous inhibition is feasible.

inhibitorAvailability

double inhibitorAvailability

Inhibitor availability factor (0-1).

inSituPH

double inSituPH

In-situ pH.

maxCorrosionAllowanceMm

double maxCorrosionAllowanceMm

Maximum allowable corrosion allowance in mm.

notes

List<String> notes

Notes.

relativeCostFactor

double relativeCostFactor

Approximate relative cost factor (CS=1.0).

selectedMaterial

String selectedMaterial

Selected material grade.

selectionRationale

String selectionRationale

Selection rationale.

temperatureC

double temperatureC

Temperature in degrees Celsius.

Class neqsim.process.corrosion.DensePhaseCO2Corrosion

class DensePhaseCO2Corrosion extends Object implements Serializable

serialVersionUID:

1008L

Serialized Fields

arContentMolPct

double arContentMolPct

Ar content in mol%.

co2PhaseState

String co2PhaseState

Phase state of CO2 at conditions.

co2PurityMolPct

double co2PurityMolPct

CO2 purity in mol%.

evaluated

boolean evaluated

Evaluated flag.

freeWaterRisk

boolean freeWaterRisk

Whether free water can form.

h2ContentMolPct

double h2ContentMolPct

H2 content in mol%.

h2sContentPpmv

double h2sContentPpmv

H2S content in ppmv.

impurityIssues

List<String> impurityIssues

Impurity specification issues.

materialType

String materialType

Pipeline material.

meetsImpuritySpecs

boolean meetsImpuritySpecs

Whether impurity levels meet typical CCS pipeline specs.

n2ContentMolPct

double n2ContentMolPct

N2 content in mol%.

notes

List<String> notes

Notes.

noxContentPpmv

double noxContentPpmv

NOx content in ppmv.

o2ContentPpmv

double o2ContentPpmv

O2 content in ppmv.

pressureBara

double pressureBara

Pressure in bara.

recommendation

String recommendation

Overall recommendation.

riskLevel

String riskLevel

Corrosion risk level.

so2ContentPpmv

double so2ContentPpmv

SO2 content in ppmv.

temperatureC

double temperatureC

Temperature in Celsius.

waterContentPpmv

double waterContentPpmv

Water content in ppmv.

waterMarginPpmv

double waterMarginPpmv

Safety margin above water solubility (ppmv).

waterSolubilityLimitPpmv

double waterSolubilityLimitPpmv

Water solubility limit in dense CO2 at conditions (ppmv).

wetCorrosionRateMmYr

double wetCorrosionRateMmYr

Estimated corrosion rate if free water forms (mm/yr).

Class neqsim.process.corrosion.HydrogenMaterialAssessment

class HydrogenMaterialAssessment extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

b3112DesignFactor

double b3112DesignFactor

Design factor for hydrogen piping per ASME B31.12.

chlorideMgL

double chlorideMgL

Chloride concentration in mg/L.

cyclicService

boolean cyclicService

Whether this is cyclic service (fatigue considerations).

designLifeYears

double designLifeYears

Design life in years.

designTemperatureC

double designTemperatureC

Design temperature in degrees Celsius.

evaluated

boolean evaluated

Whether evaluation has been performed.

freeWaterPresent

boolean freeWaterPresent

Whether the system has free water present.

h2MoleFractionBulk

double h2MoleFractionBulk

Hydrogen mole fraction in the bulk/feed fluid [0-1].

h2MoleFractionGas

double h2MoleFractionGas

Hydrogen mole fraction in the gas phase [0-1].

h2PartialPressureBar

double h2PartialPressureBar

Hydrogen partial pressure in bar.

h2sPartialPressureBar

double h2sPartialPressureBar

H2S partial pressure in bar (for combined sour + H2 assessment).

hardnessHRC

double hardnessHRC

Actual hardness [HRC], if known. -1 means unknown.

heAcceptable

boolean heAcceptable

Whether HE is acceptable per ASME B31.12.

heRisk

String heRisk

Hydrogen embrittlement risk.

hicRisk

String hicRisk

HIC risk (sour service).

hthaAcceptable

boolean hthaAcceptable

Whether HTHA is acceptable (below Nelson curve).

hthaRisk

String hthaRisk

HTHA risk per API 941.

hydrogenDeratingFactor

double hydrogenDeratingFactor

Hydrogen derating factor per ASME B31.12.

materialGrade

String materialGrade

Material grade (e.g., "X42", "X52", "X65", "SA-516-70", "316L").

maxOperatingTemperatureC

double maxOperatingTemperatureC

Maximum operating temperature in degrees Celsius.

overallRiskLevel

String overallRiskLevel

Overall risk level: "Low", "Medium", "High", "Very High".

pwhtApplied

boolean pwhtApplied

Whether post-weld heat treatment (PWHT) has been applied.

recommendations

List<String> recommendations

Material recommendations list.

recommendedMaterial

String recommendedMaterial

Recommended material.

smysMPa

double smysMPa

Specified minimum yield strength [MPa].

sourServiceOk

boolean sourServiceOk

Whether sour service requirements are met.

standardsApplied

List<String> standardsApplied

Standards applied.

totalPressureBar

double totalPressureBar

Total system pressure in bar.

wallThicknessMm

double wallThicknessMm

Wall thickness [mm].

warnings

List<String> warnings

Warning notes.

Class neqsim.process.corrosion.NelsonCurveAssessment

class NelsonCurveAssessment extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

belowNelsonCurve

boolean belowNelsonCurve

Whether the operating point is below (safe side of) the Nelson curve.

evaluated

boolean evaluated

Whether evaluation has been performed.

h2PartialPressurePsia

double h2PartialPressurePsia

Hydrogen partial pressure [psia].

materialType

String materialType

Material type identifier.

maxAllowableH2PressureBar

double maxAllowableH2PressureBar

Maximum allowable H2 partial pressure at the given temperature [bar].

maxAllowableTempC

double maxAllowableTempC

Maximum allowable temperature at the given H2 partial pressure [°C].

recommendedUpgrade

String recommendedUpgrade

Recommended material upgrade if current material is insufficient.

riskLevel

String riskLevel

Risk level.

temperatureC

double temperatureC

Operating temperature [°C].

temperatureMarginC

double temperatureMarginC

Temperature margin above the Nelson curve [°C]. Negative = safe.

Class neqsim.process.corrosion.NorsokM001MaterialSelection

class NorsokM001MaterialSelection extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

alternativeMaterials

List<String> alternativeMaterials

Alternative material options.

aqueousPH

double aqueousPH

pH of aqueous phase.

chlorideConcentrationMgL

double chlorideConcentrationMgL

Chloride concentration in mg/L (ppm).

chlorideSCCRisk

String chlorideSCCRisk

Chloride SCC risk level.

co2CorrosionRateMmyr

double co2CorrosionRateMmyr

CO2 corrosion rate in mm/yr (from NORSOK M-506 or equivalent model).

co2PartialPressureBar

double co2PartialPressureBar

CO2 partial pressure in bar (for CRA selection criteria).

designLifeYears

double designLifeYears

Design life in years.

designTemperatureC

double designTemperatureC

Design temperature in degrees Celsius.

freeWaterPresent

boolean freeWaterPresent

Whether the system has free water present.

h2sPartialPressureBar

double h2sPartialPressureBar

H2S partial pressure in bar.

hasBeenEvaluated

boolean hasBeenEvaluated

Whether evaluation has been performed.

materialMaxTemperatureC

double materialMaxTemperatureC

Maximum temperature for recommended material in degrees C.

maxDesignTemperatureC

double maxDesignTemperatureC

Maximum design temperature in degrees Celsius.

notes

List<String> notes

Key notes and warnings.

recommendedCorrosionAllowanceMm

double recommendedCorrosionAllowanceMm

Recommended corrosion allowance in mm.

recommendedMaterial

String recommendedMaterial

Recommended material grade.

serviceCategory

String serviceCategory

Service category string.

sourClassification

String sourClassification

Sour service classification per NACE MR0175.

Class neqsim.process.corrosion.NorsokM506CorrosionRate

class NorsokM506CorrosionRate extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

actualPH

double actualPH

Actual pH of the aqueous phase (if known); use -1 to calculate from equilibrium.

baselineCorrosionRate

double baselineCorrosionRate

Baseline (uncorrected) corrosion rate in mm/yr.

bicarbonateConcentrationMgL

double bicarbonateConcentrationMgL

Bicarbonate concentration in mg/L (for pH adjustment from formation water).

calculatedPH

double calculatedPH

Calculated pH of CO2-saturated water.

co2FugacityBar

double co2FugacityBar

CO2 fugacity in bar.

co2FugacityCoeff

double co2FugacityCoeff

CO2 fugacity coefficient (dimensionless).

co2MoleFraction

double co2MoleFraction

CO2 mole fraction in the gas phase (0 to 1).

correctedCorrosionRate

double correctedCorrosionRate

Fully corrected corrosion rate in mm/yr.

flowCorrectionFactor

double flowCorrectionFactor

Flow correction factor.

flowVelocityMs

double flowVelocityMs

Flow velocity in m/s.

glycolCorrectionFactor

double glycolCorrectionFactor

Glycol correction factor.

glycolWeightFraction

double glycolWeightFraction

Glycol (MEG/DEG) weight fraction in aqueous phase (0 to 1).

h2sMoleFraction

double h2sMoleFraction

H2S mole fraction in the gas phase (0 to 1) for sour service check.

hasBeenCalculated

boolean hasBeenCalculated

Whether the model has been calculated.

inhibitorEfficiency

double inhibitorEfficiency

Chemical inhibitor efficiency (0 to 1).

ionicStrengthMolL

double ionicStrengthMolL

Ionic strength in mol/L (for activity coefficient correction).

liquidDensityKgM3

double liquidDensityKgM3

Liquid density in kg/m3 (for shear stress calculation).

liquidViscosityPas

double liquidViscosityPas

Liquid dynamic viscosity in Pa.s (for Reynolds number).

phCorrectionFactor

double phCorrectionFactor

pH correction factor (Fpht).

pipeDiameterM

double pipeDiameterM

Pipe internal diameter in metres.

scaleCorrectionFactor

double scaleCorrectionFactor

Scale correction factor (Fscale).

scalingTemperatureC

double scalingTemperatureC

Scaling temperature in degrees C (protective FeCO3 formation).

temperatureC

double temperatureC

Operating temperature in degrees Celsius.

totalPressureBara

double totalPressureBara

Total system pressure in bara.

useFlowCorrection

boolean useFlowCorrection

Whether to apply flow correction factor.

usePHCorrection

boolean usePHCorrection

Whether to apply pH correction factor.

useScaleCorrection

boolean useScaleCorrection

Whether to apply scale correction factor.

wallShearStressPa

double wallShearStressPa

Wall shear stress in Pa.

Class neqsim.process.corrosion.OxygenCorrosionAssessment

class OxygenCorrosionAssessment extends Object implements Serializable

serialVersionUID:

1007L

Serialized Fields

chlorideMgL

double chlorideMgL

Chloride concentration in mg/L.

corrosionRateMmYr

double corrosionRateMmYr

Estimated general corrosion rate in mm/yr.

deaerationApplied

boolean deaerationApplied

Whether deaeration tower is used.

dissolvedO2Ppb

double dissolvedO2Ppb

Dissolved O2 in ppb.

evaluated

boolean evaluated

Evaluated flag.

materialType

String materialType

Material type.

meetsO2Target

boolean meetsO2Target

Whether O2 level meets target.

notes

List<String> notes

Notes.

pittingFactor

double pittingFactor

Pitting factor (pitting / general corrosion rate).

pittingRateMmYr

double pittingRateMmYr

Maximum pitting rate in mm/yr.

recommendedTreatment

String recommendedTreatment

Recommended treatment.

riskLevel

String riskLevel

Corrosion risk level.

scavengerApplied

boolean scavengerApplied

Whether chemical scavenger is applied.

systemType

String systemType

System type.

targetO2Ppb

double targetO2Ppb

Target O2 level for the system in ppb.

temperatureC

double temperatureC

Temperature in Celsius.

velocityMS

double velocityMS

Flow velocity in m/s.

Class neqsim.process.corrosion.SourServiceAssessment

class SourServiceAssessment extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

chlorideConcentrationMgL

double chlorideConcentrationMgL

Chloride concentration in mg/L (ppm).

co2PartialPressureBar

double co2PartialPressureBar

CO2 partial pressure in bar.

elementalSulfurPresent

boolean elementalSulfurPresent

Elemental sulfur present.

evaluated

boolean evaluated

Whether evaluated.

freeWaterPresent

boolean freeWaterPresent

Whether free water is present.

h2sPartialPressureBar

double h2sPartialPressureBar

H2S partial pressure in bar.

hardnessHRC

double hardnessHRC

Material hardness in HRC.

hicAcceptable

boolean hicAcceptable

Whether HIC risk is acceptable.

hicRiskLevel

String hicRiskLevel

HIC risk level.

inSituPH

double inSituPH

In-situ pH of aqueous phase.

materialGrade

String materialGrade

Material grade (e.g., "X52", "X65", "316L", "22Cr duplex").

maxAllowableHardnessHRC

double maxAllowableHardnessHRC

Maximum allowable hardness for this region.

maxAllowableYieldStrengthMPa

double maxAllowableYieldStrengthMPa

Maximum allowable yield strength in MPa.

notes

List<String> notes

Notes and warnings.

overallRiskLevel

String overallRiskLevel

Overall sour service risk.

pwhtApplied

boolean pwhtApplied

Whether post-weld heat treatment has been done.

recommendedMaterial

String recommendedMaterial

Recommended material.

sohicAcceptable

boolean sohicAcceptable

Whether SOHIC risk is acceptable.

sourRegion

int sourRegion

ISO 15156 sour region (0–3).

sscAcceptable

boolean sscAcceptable

Whether SSC risk is acceptable.

sscRiskLevel

String sscRiskLevel

SSC risk level.

standardsApplied

List<String> standardsApplied

Standards applied.

temperatureC

double temperatureC

Temperature in degrees Celsius.

totalPressureBar

double totalPressureBar

Total system pressure in bar.

yieldStrengthMPa

double yieldStrengthMPa

Material yield strength in MPa.

Package neqsim.process.costestimation

Class neqsim.process.costestimation.CostEstimateBaseClass

class CostEstimateBaseClass extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

CAPEXperWeight

double CAPEXperWeight

processdesign

SystemMechanicalDesign processdesign

Class neqsim.process.costestimation.CostEstimationCalculator

class CostEstimationCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bareModuleCost

double bareModuleCost

Bare module cost (BMC) in USD.

contingencyFactor

double contingencyFactor

Contingency factor.

currencyCode

String currencyCode

Currency code (default USD).

currentCepci

double currentCepci

Current CEPCI for cost escalation.

engineeringFactor

double engineeringFactor

Engineering factor.

exchangeRate

double exchangeRate

Exchange rate from USD.

grassRootsCost

double grassRootsCost

Total grass roots cost in USD.

installationFactor

double installationFactor

Installation factor (Lang factor).

locationFactor

double locationFactor

Location factor for different regions.

materialFactor

double materialFactor

Material factor.

materialOfConstruction

String materialOfConstruction

Material of construction.

purchasedEquipmentCost

double purchasedEquipmentCost

Purchased equipment cost (PEC) in USD.

referenceCepci

double referenceCepci

Reference CEPCI for correlations (2019).

totalModuleCost

double totalModuleCost

Total module cost (TMC) in USD.

Class neqsim.process.costestimation.ProcessCostEstimate

class ProcessCostEstimate extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

complexityFactor

double complexityFactor

Process complexity factor (1.0 = standard).

costByDiscipline

Map<String,Double> costByDiscipline

Cost breakdown by discipline.

costByEquipmentType

Map<String,Double> costByEquipmentType

Cost breakdown by equipment type.

equipmentCosts

List<ProcessCostEstimate.EquipmentCostSummary> equipmentCosts

Individual equipment costs.

locationFactor

double locationFactor

Location factor (1.0 = US Gulf Coast).

operatingCostBreakdown

Map<String,Double> operatingCostBreakdown

Operating cost breakdown by category.

processContingencyFactor

double processContingencyFactor

Process contingency factor (fraction).

processSystem

ProcessSystem processSystem

The process system being estimated.

projectContingencyFactor

double projectContingencyFactor

Project contingency factor (fraction).

systemMechanicalDesign

SystemMechanicalDesign systemMechanicalDesign

The system mechanical design (optional, for integrated calculations).

totalAnnualOperatingCost

double totalAnnualOperatingCost

Total annual operating cost in USD.

totalBareModuleCost

double totalBareModuleCost

Total bare module cost (BMC) in USD.

totalGrassRootsCost

double totalGrassRootsCost

Total grass roots cost in USD.

totalInstallationManHours

double totalInstallationManHours

Total installation man-hours.

totalModuleCost

double totalModuleCost

Total module cost (TMC) in USD.

totalPurchasedEquipmentCost

double totalPurchasedEquipmentCost

Total purchased equipment cost (PEC) in USD.

workingCapitalFactor

double workingCapitalFactor

Working capital factor (fraction of fixed capital).

Class neqsim.process.costestimation.ProcessCostEstimate.EquipmentCostSummary

class EquipmentCostSummary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bareModuleCost

double bareModuleCost

installationManHours

double installationManHours

name

String name

purchasedEquipmentCost

double purchasedEquipmentCost

totalModuleCost

double totalModuleCost

type

String type

weight

double weight

Class neqsim.process.costestimation.UnitCostEstimateBaseClass

class UnitCostEstimateBaseClass extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

annualOperatingCost

double annualOperatingCost

Annual operating cost in USD.

bareModuleCost

double bareModuleCost

Bare module cost in USD.

costPerWeightUnit

double costPerWeightUnit

Cost per weight unit ($/kg) - simple estimation.

equipmentType

String equipmentType

Equipment type identifier.

grassRootsCost

double grassRootsCost

Grass roots cost in USD.

installationManHours

double installationManHours

Installation labor man-hours.

mechanicalEquipment

MechanicalDesign mechanicalEquipment

Associated mechanical design.

purchasedEquipmentCost

double purchasedEquipmentCost

Purchased equipment cost in USD.

totalModuleCost

double totalModuleCost

Total module cost in USD.

Package neqsim.process.costestimation.absorber

Class neqsim.process.costestimation.absorber.AbsorberCostEstimate

class AbsorberCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

absorberType

String absorberType

Absorber type.

columnDiameter

double columnDiameter

Column diameter in meters.

columnHeight

double columnHeight

Column height in meters.

designPressure

double designPressure

Design pressure in barg.

includeLiquidDistributor

boolean includeLiquidDistributor

Include liquid distributor.

includeMistEliminator

boolean includeMistEliminator

Include mist eliminator.

includeReboiler

boolean includeReboiler

Include reboiler.

includeRefluxSystem

boolean includeRefluxSystem

Include reflux system.

numberOfStages

int numberOfStages

Number of theoretical stages.

packingHeight

double packingHeight

Packing height in meters.

packingType

String packingType

Packing type (for packed columns).

reboilerDuty

double reboilerDuty

Reboiler duty in kW.

trayType

String trayType

Tray type (for trayed columns).

Package neqsim.process.costestimation.adsorber

Class neqsim.process.costestimation.adsorber.MercuryRemovalCostEstimate

class MercuryRemovalCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1002L

Serialized Fields

installationFactor

double installationFactor

Installation factor (multiplier on purchased equipment cost).

maintenanceFactor

double maintenanceFactor

Annual maintenance factor (fraction of CAPEX).

sorbentUnitPrice

double sorbentUnitPrice

Sorbent unit price (USD / kg of sorbent). Typical PuraSpec ~15-30 USD/kg.

steelCostPerKg

double steelCostPerKg

Steel fabrication cost factor (USD / kg of fabricated steel).

Package neqsim.process.costestimation.column

Class neqsim.process.costestimation.column.ColumnCostEstimate

class ColumnCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

columnDiameter

double columnDiameter

Column diameter in meters.

columnHeight

double columnHeight

Column height in meters.

columnType

String columnType

Column type.

condenserDuty

double condenserDuty

Condenser duty in kW.

designPressure

double designPressure

Design pressure in barg.

includeCondenser

boolean includeCondenser

Include condenser in cost.

includeReboiler

boolean includeReboiler

Include reboiler in cost.

numberOfTrays

int numberOfTrays

Number of trays.

packingHeight

double packingHeight

Packing height in meters.

packingType

String packingType

Packing type.

reboilerDuty

double reboilerDuty

Reboiler duty in kW.

trayType

String trayType

Tray type.

Package neqsim.process.costestimation.compressor

Class neqsim.process.costestimation.compressor.CompressorCostEstimate

class CompressorCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

compressorType

String compressorType

Compressor type.

driverType

String driverType

Driver type.

includeDriver

boolean includeDriver

Include driver in cost.

includeIntercoolers

boolean includeIntercoolers

Include intercoolers.

numberOfStages

int numberOfStages

Number of stages.

Package neqsim.process.costestimation.ejector

Class neqsim.process.costestimation.ejector.EjectorCostEstimate

class EjectorCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

dischargePressure

double dischargePressure

Discharge pressure in bara.

ejectorType

String ejectorType

Ejector type.

includeAftercondenser

boolean includeAftercondenser

Include aftercondenser.

includeIntercondensers

boolean includeIntercondensers

Include intercondensers.

motivePressure

double motivePressure

Motive steam pressure in bara.

numberOfStages

int numberOfStages

Number of stages.

suctionCapacity

double suctionCapacity

Suction capacity in kg/hr.

suctionPressure

double suctionPressure

Suction pressure in mbar abs.

Package neqsim.process.costestimation.expander

Class neqsim.process.costestimation.expander.ExpanderCostEstimate

class ExpanderCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

cryogenicService

boolean cryogenicService

Is cryogenic service (below -40°C).

expanderType

String expanderType

Expander type.

includeControlSystem

boolean includeControlSystem

Include control system.

includeGearbox

boolean includeGearbox

Include gearbox.

includeLoad

boolean includeLoad

Include load in cost.

includeLubeOilSystem

boolean includeLubeOilSystem

Include lube oil system.

inletTemperature

double inletTemperature

Inlet temperature in K.

loadType

String loadType

Load type (generator, compressor, brake).

manualShaftPower

double manualShaftPower

Manual shaft power in kW (used when no MechanicalDesign available).

Package neqsim.process.costestimation.heatexchanger

Class neqsim.process.costestimation.heatexchanger.BAHXCostEstimator

class BAHXCostEstimator extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

annualMaintenanceCostUSD

double annualMaintenanceCostUSD

Annual maintenance cost estimate in USD.

brazingCost

double brazingCost

Brazing process cost in USD.

coreCost

double coreCost

Core material and manufacturing cost in USD.

equipmentCostUSD

double equipmentCostUSD

Equipment cost (ex-works) in USD.

headerNozzleCost

double headerNozzleCost

Header and nozzle cost in USD.

installedCostUSD

double installedCostUSD

Installed cost in USD.

specificCostPerM2

double specificCostPerM2

Specific cost per m2 in USD.

testingCost

double testingCost

Testing and inspection cost in USD.

Class neqsim.process.costestimation.heatexchanger.HeatExchangerCostEstimate

class HeatExchangerCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

exchangerType

String exchangerType

Heat exchanger type.

shellPasses

int shellPasses

Number of shell passes.

temaType

String temaType

TEMA type (e.g., "AES", "BEM", "AEU").

tubePasses

int tubePasses

Number of tube passes.

Package neqsim.process.costestimation.mixer

Class neqsim.process.costestimation.mixer.MixerCostEstimate

class MixerCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

flangedConnections

boolean flangedConnections

Include flanged connections.

mixerType

String mixerType

Mixer type.

numberOfElements

int numberOfElements

Number of mixing elements (for static mixers).

pipeDiameter

double pipeDiameter

Pipe diameter in inches.

pressureClass

int pressureClass

Pressure class (ASME).

Package neqsim.process.costestimation.pipe

Class neqsim.process.costestimation.pipe.PipeCostEstimate

class PipeCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

fittingsPerHundredMeters

int fittingsPerHundredMeters

Number of fittings per 100m.

includeFittings

boolean includeFittings

Include fittings cost.

includeInsulation

boolean includeInsulation

Include insulation.

installationType

String installationType

Installation type.

insulationThickness

double insulationThickness

Insulation thickness in mm.

nominalDiameter

double nominalDiameter

Pipe nominal diameter in inches.

numberOfFlanges

int numberOfFlanges

Number of flanged connections.

pipeLength

double pipeLength

Pipe length in meters.

pipeSchedule

String pipeSchedule

Pipe schedule.

Package neqsim.process.costestimation.pump

Class neqsim.process.costestimation.pump.PumpCostEstimate

class PumpCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

apiRated

boolean apiRated

API rating.

includeMotor

boolean includeMotor

Motor included in cost.

pumpType

String pumpType

Pump type.

sealType

String sealType

Seal type.

Package neqsim.process.costestimation.separator

Class neqsim.process.costestimation.separator.SeparatorCostEstimate

class SeparatorCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Package neqsim.process.costestimation.splitter

Class neqsim.process.costestimation.splitter.SplitterCostEstimate

class SplitterCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

includeControlValves

boolean includeControlValves

Include control valves on outlets.

includeFlowMeters

boolean includeFlowMeters

Include flow meters on outlets.

inletDiameter

double inletDiameter

Inlet pipe diameter in inches.

numberOfOutlets

int numberOfOutlets

Number of outlet streams.

outletDiameter

double outletDiameter

Outlet pipe diameter in inches.

pressureClass

int pressureClass

Pressure class (ASME).

splitterType

String splitterType

Splitter type.

Package neqsim.process.costestimation.tank

Class neqsim.process.costestimation.tank.TankCostEstimate

class TankCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

designPressure

double designPressure

Design pressure in barg (0 for atmospheric).

floatingRoof

boolean floatingRoof

Include floating roof.

includeFoundation

boolean includeFoundation

Include foundation cost.

includeHeatingCoils

boolean includeHeatingCoils

Include heating coils.

includeInsulation

boolean includeInsulation

Include insulation.

insulationThickness

double insulationThickness

Insulation thickness in mm.

tankDiameter

double tankDiameter

Tank diameter in meters.

tankHeight

double tankHeight

Tank height in meters.

tankType

String tankType

Tank type.

tankVolume

double tankVolume

Tank volume in m3.

Package neqsim.process.costestimation.valve

Class neqsim.process.costestimation.valve.ValveCostEstimate

class ValveCostEstimate extends UnitCostEstimateBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

actuatorType

String actuatorType

Actuator type.

includeActuator

boolean includeActuator

Include actuator.

nominalSize

double nominalSize

Nominal valve size in inches.

pressureClass

int pressureClass

Pressure class (ASME).

valveCv

double valveCv

Valve Cv (flow coefficient).

valveType

String valveType

Valve type.

Package neqsim.process.electricaldesign

Class neqsim.process.electricaldesign.ElectricalDesign

class ElectricalDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

apparentPowerKVA

double apparentPowerKVA

cableDeratingFactor

double cableDeratingFactor

cableStandard

String cableStandard

continuousDuty

boolean continuousDuty

controlCable

ElectricalCable controlCable

diversityFactor

double diversityFactor

electricalInputKW

double electricalInputKW

frequencyHz

double frequencyHz

hazArea

HazardousAreaClassification hazArea

hazAreaStandard

String hazAreaStandard

motor

ElectricalMotor motor

motorSizingMargin

double motorSizingMargin

motorStandard

String motorStandard

phases

int phases

powerCable

ElectricalCable powerCable

powerFactor

double powerFactor

processEquipment

ProcessEquipmentInterface processEquipment

The process equipment this electrical design belongs to.

ratedVoltageV

double ratedVoltageV

reactivePowerKVAR

double reactivePowerKVAR

shaftPowerKW

double shaftPowerKW

switchgear

Switchgear switchgear

transformer

Transformer transformer

useVFD

boolean useVFD

vfd

VariableFrequencyDrive vfd

Class neqsim.process.electricaldesign.ElectricalDesignResponse

class ElectricalDesignResponse extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

apparentPowerKVA

double apparentPowerKVA

controlCableData

Map<String,Object> controlCableData

electricalInputKW

double electricalInputKW

equipmentName

String equipmentName

equipmentType

String equipmentType

frequencyHz

double frequencyHz

hazAreaData

Map<String,Object> hazAreaData

motorData

Map<String,Object> motorData

phases

int phases

powerCableData

Map<String,Object> powerCableData

powerFactor

double powerFactor

ratedVoltageV

double ratedVoltageV

reactivePowerKVAR

double reactivePowerKVAR

shaftPowerKW

double shaftPowerKW

switchgearData

Map<String,Object> switchgearData

totalLossesKW

double totalLossesKW

transformerData

Map<String,Object> transformerData

vfdData

Map<String,Object> vfdData

Package neqsim.process.electricaldesign.components

Class neqsim.process.electricaldesign.components.ElectricalCable

class ElectricalCable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientTempDeratingFactor

double ambientTempDeratingFactor

ampacityA

double ampacityA

baseAmpacityA

double baseAmpacityA

burialDepthDeratingFactor

double burialDepthDeratingFactor

conductorMaterial

String conductorMaterial

crossSectionMM2

double crossSectionMM2

estimatedCostPerMeterUSD

double estimatedCostPerMeterUSD

groupingDeratingFactor

double groupingDeratingFactor

installationMethod

String installationMethod

insulationType

String insulationType

lengthM

double lengthM

maxVoltageDropPercent

double maxVoltageDropPercent

numberOfCores

int numberOfCores

routeReference

String routeReference

shortCircuitDurationS

double shortCircuitDurationS

shortCircuitWithstandKA

double shortCircuitWithstandKA

totalCostUSD

double totalCostUSD

voltageDropPercent

double voltageDropPercent

Class neqsim.process.electricaldesign.components.ElectricalMotor

class ElectricalMotor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dutyType

String dutyType

efficiencyClass

String efficiencyClass

efficiencyPercent

double efficiencyPercent

enclosureType

String enclosureType

estimatedCostUSD

double estimatedCostUSD

exProtection

String exProtection

frameSize

String frameSize

frequencyHz

double frequencyHz

gasGroup

String gasGroup

insulationClass

String insulationClass

lockedRotorCurrentMultiplier

double lockedRotorCurrentMultiplier

poles

int poles

powerFactorFL

double powerFactorFL

ratedCurrentA

double ratedCurrentA

ratedPowerKW

double ratedPowerKW

ratedSpeedRPM

double ratedSpeedRPM

ratedVoltageV

double ratedVoltageV

serviceFactor

double serviceFactor

startingMethod

String startingMethod

startingTorquePercent

double startingTorquePercent

temperatureClass

String temperatureClass

weightKg

double weightKg

Class neqsim.process.electricaldesign.components.HazardousAreaClassification

class HazardousAreaClassification extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

classificationStandard

String classificationStandard

dustGroup

String dustGroup

equipmentProtectionLevel

String equipmentProtectionLevel

gasGroup

String gasGroup

requiredExProtection

String requiredExProtection

temperatureClass

String temperatureClass

zone

String zone

Class neqsim.process.electricaldesign.components.Switchgear

class Switchgear extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bucketHeightMM

double bucketHeightMM

bucketWidthMM

double bucketWidthMM

circuitBreakerRatingA

double circuitBreakerRatingA

estimatedCostUSD

double estimatedCostUSD

fuseRatingA

double fuseRatingA

hasMotorProtection

boolean hasMotorProtection

protectionRelay

String protectionRelay

ratedCurrentA

double ratedCurrentA

ratedVoltageV

double ratedVoltageV

shortCircuitCurrentKA

double shortCircuitCurrentKA

starterType

String starterType

switchgearType

String switchgearType

weightKg

double weightKg

Class neqsim.process.electricaldesign.components.Transformer

class Transformer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingType

String coolingType

efficiencyPercent

double efficiencyPercent

estimatedCostUSD

double estimatedCostUSD

frequencyHz

double frequencyHz

fullLoadLossKW

double fullLoadLossKW

impedancePercent

double impedancePercent

noLoadLossKW

double noLoadLossKW

primaryVoltageV

double primaryVoltageV

ratedPowerKVA

double ratedPowerKVA

secondaryVoltageV

double secondaryVoltageV

tapChangerType

String tapChangerType

tapPositions

int tapPositions

tapRangePercent

double tapRangePercent

totalLossKW

double totalLossKW

vectorGroup

String vectorGroup

weightKg

double weightKg

Class neqsim.process.electricaldesign.components.VariableFrequencyDrive

class VariableFrequencyDrive extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingMethod

String coolingMethod

efficiencyPercent

double efficiencyPercent

enclosureRating

String enclosureRating

estimatedCostUSD

double estimatedCostUSD

hasActiveRectifier

boolean hasActiveRectifier

hasFieldWeakeningRegion

boolean hasFieldWeakeningRegion

heatDissipationKW

double heatDissipationKW

inputPowerFactor

double inputPowerFactor

inputVoltageV

double inputVoltageV

maxOutputFrequencyHz

double maxOutputFrequencyHz

maxSpeedPercent

double maxSpeedPercent

minOutputFrequencyHz

double minOutputFrequencyHz

minSpeedPercent

double minSpeedPercent

outputVoltageV

double outputVoltageV

pulseConfiguration

String pulseConfiguration

ratedCurrentA

double ratedCurrentA

ratedPowerKW

double ratedPowerKW

requiresInputFilter

boolean requiresInputFilter

thdCurrentPercent

double thdCurrentPercent

topologyType

String topologyType

weightKg

double weightKg

Package neqsim.process.electricaldesign.compressor

Class neqsim.process.electricaldesign.compressor.CompressorElectricalDesign

class CompressorElectricalDesign extends ElectricalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingFanKW

double coolingFanKW

hasAirCooling

boolean hasAirCooling

hasLubeOilSystem

boolean hasLubeOilSystem

hasSealGasSystem

boolean hasSealGasSystem

instrumentationKW

double instrumentationKW

lubeOilHeaterKW

double lubeOilHeaterKW

lubeOilPumpKW

double lubeOilPumpKW

sealGasSystemKW

double sealGasSystemKW

totalAuxiliaryKW

double totalAuxiliaryKW

Package neqsim.process.electricaldesign.heatexchanger

Class neqsim.process.electricaldesign.heatexchanger.HeatExchangerElectricalDesign

class HeatExchangerElectricalDesign extends ElectricalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingWaterPumpKW

double coolingWaterPumpKW

fanEfficiency

double fanEfficiency

heatExchangerType

HeatExchangerElectricalDesign.HeatExchangerType heatExchangerType

instrumentationKW

double instrumentationKW

numberOfFans

int numberOfFans

totalAuxiliaryKW

double totalAuxiliaryKW

Package neqsim.process.electricaldesign.loadanalysis

Class neqsim.process.electricaldesign.loadanalysis.ElectricalLoadList

class ElectricalLoadList extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

designMargin

double designMargin

loadItems

List<LoadItem> loadItems

maximumDemandKVA

double maximumDemandKVA

maximumDemandKW

double maximumDemandKW

overallPowerFactor

double overallPowerFactor

projectName

String projectName

requiredGeneratorKVA

double requiredGeneratorKVA

requiredTransformerKVA

double requiredTransformerKVA

totalConnectedLoadKVA

double totalConnectedLoadKVA

totalConnectedLoadKW

double totalConnectedLoadKW

totalReactivePowerKVAR

double totalReactivePowerKVAR

Class neqsim.process.electricaldesign.loadanalysis.LoadItem

class LoadItem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

absorbedPowerKW

double absorbedPowerKW

apparentPowerKVA

double apparentPowerKVA

continuousDuty

boolean continuousDuty

demandFactor

double demandFactor

description

String description

diversityFactor

double diversityFactor

hasVFD

boolean hasVFD

isSpare

boolean isSpare

loadCategory

String loadCategory

powerFactor

double powerFactor

ratedCurrentA

double ratedCurrentA

ratedPowerKW

double ratedPowerKW

ratedVoltageV

double ratedVoltageV

tagNumber

String tagNumber

Package neqsim.process.electricaldesign.pipeline

Class neqsim.process.electricaldesign.pipeline.PipelineElectricalDesign

class PipelineElectricalDesign extends ElectricalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

cathodicProtectionKW

double cathodicProtectionKW

hasCathodicProtection

boolean hasCathodicProtection

hasHeatTracing

boolean hasHeatTracing

heatTracingWPerM

double heatTracingWPerM

instrumentationKW

double instrumentationKW

totalAuxiliaryKW

double totalAuxiliaryKW

Package neqsim.process.electricaldesign.pump

Class neqsim.process.electricaldesign.pump.PumpElectricalDesign

class PumpElectricalDesign extends ElectricalDesign implements Serializable

serialVersionUID:

1000L

Package neqsim.process.electricaldesign.separator

Class neqsim.process.electricaldesign.separator.SeparatorElectricalDesign

class SeparatorElectricalDesign extends ElectricalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

controlValvePowerKW

double controlValvePowerKW

hasHeatTracing

boolean hasHeatTracing

heatTracingKW

double heatTracingKW

instrumentationKW

double instrumentationKW

lightingKW

double lightingKW

numberOfControlValves

int numberOfControlValves

totalAuxiliaryKW

double totalAuxiliaryKW

Package neqsim.process.electricaldesign.system

Class neqsim.process.electricaldesign.system.SystemElectricalDesign

class SystemElectricalDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

distributionVoltageV

double distributionVoltageV

emergencyGeneratorKVA

double emergencyGeneratorKVA

frequencyHz

double frequencyHz

futureExpansionFraction

double futureExpansionFraction

loadList

ElectricalLoadList loadList

mainBusVoltageV

double mainBusVoltageV

mainTransformerKVA

double mainTransformerKVA

overallPowerFactor

double overallPowerFactor

processSystem

ProcessSystem processSystem

totalPlantLoadKW

double totalPlantLoadKW

totalProcessLoadKW

double totalProcessLoadKW

upsLoadKW

double upsLoadKW

utilityLoadKW

double utilityLoadKW

Package neqsim.process.equipment

Class neqsim.process.equipment.MultiPortEquipment

class MultiPortEquipment extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inletStreams

List<StreamInterface> inletStreams

Inlet streams connected to this equipment.

outletStreams

List<StreamInterface> outletStreams

Outlet streams connected to this equipment.

Class neqsim.process.equipment.ProcessEquipmentBaseClass

class ProcessEquipmentBaseClass extends SimulationBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

capacityAnalysisEnabled

boolean capacityAnalysisEnabled

Flag to enable/disable capacity analysis for this equipment. When disabled, this equipment is excluded from bottleneck detection, capacity utilization summaries, and optimization routines.

conditionAnalysisMessage

String conditionAnalysisMessage

controller

ControllerDeviceInterface controller

controllerMap

Map<String, ControllerDeviceInterface> controllerMap

Map of controller tag name to controller device. Supports multiple controllers per equipment.

energyStream

EnergyStream energyStream

failureMode

EquipmentFailureMode failureMode

Current failure mode of the equipment. Null means equipment is operating normally.

flowValveController

ControllerDeviceInterface flowValveController

hasController

boolean hasController

isActive

boolean isActive

isFailed

boolean isFailed

Flag indicating if the equipment is in a failed state.

isSetEnergyStream

boolean isSetEnergyStream

isSolved

boolean isSolved

minimumFlow

double minimumFlow

properties

HashMap<String,String> properties

referenceDesignation

ReferenceDesignation referenceDesignation

IEC 81346 reference designation for this equipment. Contains the function, product, and location aspects per IEC 81346 standard.

report

String[][] report

specification

String specification

Class neqsim.process.equipment.TwoPortEquipment

class TwoPortEquipment extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inStream

StreamInterface inStream

outStream

StreamInterface outStream

Package neqsim.process.equipment.absorber

Class neqsim.process.equipment.absorber.H2SScavenger

class H2SScavenger extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualScavengerConsumption

double actualScavengerConsumption

contactTime

double contactTime

h2sRemovalEfficiency

double h2sRemovalEfficiency

h2sRemoved

double h2sRemoved

injectionRateUnit

String injectionRateUnit

inletH2SConcentration

double inletH2SConcentration

mixingEfficiency

double mixingEfficiency

outletH2SConcentration

double outletH2SConcentration

scavengerConcentration

double scavengerConcentration

scavengerExcess

double scavengerExcess

scavengerInjectionRate

double scavengerInjectionRate

scavengerType

H2SScavenger.ScavengerType scavengerType

targetH2SConcentration

double targetH2SConcentration

Class neqsim.process.equipment.absorber.RateBasedAbsorber

class RateBasedAbsorber extends SimpleAbsorber implements Serializable

serialVersionUID:

1000L

Serialized Fields

billetCL

double billetCL

Billet-Schultes packing constant CL [-].

billetCV

double billetCV

Billet-Schultes packing constant CV [-].

columnArea

double columnArea

Column cross-sectional area [m2].

columnDiameter

double columnDiameter

Column internal diameter [m].

enhancementModel

RateBasedAbsorber.EnhancementModel enhancementModel

Enhancement factor model.

gasInStream

StreamInterface gasInStream

Gas inlet stream (bottom of column).

gasOutStream

StreamInterface gasOutStream

Gas outlet stream (top of column).

heightOfTransferUnit

double heightOfTransferUnit

Height of an overall gas-phase transfer unit [m].

massTransferModel

RateBasedAbsorber.MassTransferModel massTransferModel

Mass transfer correlation.

numberOfTransferUnits

double numberOfTransferUnits

Number of overall gas-phase transfer units [-].

operatingPressure

double operatingPressure

Column operating pressure [Pa].

overallKGa

double overallKGa

Overall gas-phase mass transfer coefficient times interfacial area [1/s].

overallKLa

double overallKLa

Overall liquid-phase mass transfer coefficient times interfacial area [1/s].

packedHeight

double packedHeight

Total packed height [m].

packingCriticalSurfaceTension

double packingCriticalSurfaceTension

Critical surface tension of packing material [N/m].

packingNominalSize

double packingNominalSize

Packing nominal size [m].

packingSpecificArea

double packingSpecificArea

Packing specific surface area [m2/m3].

packingVoidFraction

double packingVoidFraction

Packing void fraction [-].

reactionRateConstant

double reactionRateConstant

Second-order reaction rate constant [m3/(mol·s)] for enhancement factor.

solventInStream

StreamInterface solventInStream

Solvent inlet stream (top of column).

solventOutStream

StreamInterface solventOutStream

Solvent outlet stream (bottom of column).

stageResults

List<RateBasedAbsorber.StageResult> stageResults

Stage-by-stage results.

stoichiometricRatio

double stoichiometricRatio

Stoichiometric ratio (moles of B consumed per mole of A absorbed).

wettedArea

double wettedArea

Wetted specific area [m2/m3].

Class neqsim.process.equipment.absorber.RateBasedAbsorber.StageResult

class StageResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

enhancementFactor

double enhancementFactor

Enhancement factor [-].

kGa

double kGa

Gas-side KGa [1/s].

kLa

double kLa

Liquid-side KLa [1/s].

molesTransferred

double molesTransferred

Total moles transferred in this stage [mol/s].

pressure

double pressure

Stage pressure [Pa].

stageNumber

int stageNumber

Stage number (1-based).

temperature

double temperature

Stage temperature [K].

wettedArea

double wettedArea

Wetted area [m2/m3].

Class neqsim.process.equipment.absorber.SimpleAbsorber

class SimpleAbsorber extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

absorptionEfficiency

double absorptionEfficiency

dT

double dT

fsFactor

double fsFactor

HTU

double HTU

inStream

StreamInterface[] inStream

NTU

double NTU

numberOfStages

int numberOfStages

numberOfTheoreticalStages

double numberOfTheoreticalStages

outStream

StreamInterface[] outStream

setTemperature

boolean setTemperature

stageEfficiency

double stageEfficiency

system

SystemInterface system

temperatureOut

double temperatureOut

Class neqsim.process.equipment.absorber.SimpleAmineAbsorber

class SimpleAmineAbsorber extends SimpleAbsorber implements Serializable

serialVersionUID:

1000L

Serialized Fields

amineConcentrationWtPct

double amineConcentrationWtPct

Amine weight percent concentration in the lean solvent (typically 30-50 wt%).

amineLossRate

double amineLossRate

Amine loss rate (kg/MSm3 gas treated).

amineTemperatureAdequate

boolean amineTemperatureAdequate

Whether the amine temperature is above gas feed by the required margin.

amineTemperatureMarginC

double amineTemperatureMarginC

Required temperature margin: lean amine T above gas feed T (degC).

amineType

String amineType

Amine type: "MDEA", "DEA", "MEA", or blend.

approachToEquilibrium

double approachToEquilibrium

Approach to equilibrium fraction (typically 0.70).

calculatedDemisterKFactor

double calculatedDemisterKFactor

Calculated demister K-factor at gas outlet (m/s).

calculatedTheoreticalStages

double calculatedTheoreticalStages

Calculated number of theoretical stages.

co2RemovalEfficiency

double co2RemovalEfficiency

Overall CO2 removal efficiency (0.0-1.0).

foamingDesignMargin

double foamingDesignMargin

Foaming design margin as fraction (0.0-1.0). Applied as capacity derating.

gasCarryUnder

double gasCarryUnder

Gas carry-under: Am3 gas per Am3 amine downstream the contactor.

h2sRemovalEfficiency

double h2sRemovalEfficiency

Overall H2S removal efficiency (0.0-1.0).

heatOfAbsorption

double heatOfAbsorption

Heat of absorption (kW).

leanAmineInStream

StreamInterface leanAmineInStream

Lean amine inlet stream.

leanAmineLoading

double leanAmineLoading

Lean amine acid gas loading (mol acid gas / mol amine).

maxDemisterKFactor

double maxDemisterKFactor

Demister K-factor limit for wire mesh at gas outlet (m/s).

maxPackingHeightPerSection

double maxPackingHeightPerSection

Maximum packing height per section in metres.

maxReboilerTemperatureC

double maxReboilerTemperatureC

Maximum lean amine temperature in the reboiler (degrees C). Above this, amine degrades.

numberOfPackingSections

int numberOfPackingSections

Number of packing sections needed.

requiredCirculationRate

double requiredCirculationRate

Required solvent circulation rate (m3/h).

requiredPackingHeight

double requiredPackingHeight

Effective packing height required (m).

richAmineLoading

double richAmineLoading

Calculated acid gas loading (mol acid gas / mol amine).

richAmineOutStream

StreamInterface richAmineOutStream

Rich amine outlet stream.

sourGasInStream

StreamInterface sourGasInStream

Sour gas inlet stream.

sweetGasOutStream

StreamInterface sweetGasOutStream

Sweet gas outlet stream.

targetCO2MolFraction

double targetCO2MolFraction

Target CO2 content in sweet gas (mol fraction).

targetH2SPpmv

double targetH2SPpmv

Target H2S content in sweet gas (ppmv). If zero, H2S removal is not modelled.

Class neqsim.process.equipment.absorber.SimpleAmineAbsorber.DesignCheck

class DesignCheck extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

detail

String detail

Descriptive detail.

name

String name

Check name.

passed

boolean passed

Whether the check passed.

Class neqsim.process.equipment.absorber.SimpleTEGAbsorber

class SimpleTEGAbsorber extends SimpleAbsorber implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasInStream

StreamInterface gasInStream

gasOutStream

StreamInterface gasOutStream

isSetWaterInDryGas

boolean isSetWaterInDryGas

kwater

double kwater

mixedStream

StreamInterface mixedStream

numberOfInputStreams

int numberOfInputStreams

outStream

StreamInterface outStream

pressure

double pressure

solventInStream

StreamInterface solventInStream

solventOutStream

StreamInterface solventOutStream

solventStreamNumber

int solventStreamNumber

streams

ArrayList<StreamInterface> streams

waterInDryGas

double waterInDryGas

Class neqsim.process.equipment.absorber.WaterStripperColumn

class WaterStripperColumn extends SimpleAbsorber implements Serializable

serialVersionUID:

1000L

Serialized Fields

dewPressure

double dewPressure

gasInStream

StreamInterface gasInStream

gasOutStream

StreamInterface gasOutStream

kwater

double kwater

mixedStream

StreamInterface mixedStream

numberOfInputStreams

int numberOfInputStreams

outStream

StreamInterface outStream

pressure

double pressure

solventInStream

StreamInterface solventInStream

solventOutStream

StreamInterface solventOutStream

solventStreamNumber

int solventStreamNumber

streams

ArrayList<StreamInterface> streams

waterDewPointTemperature

double waterDewPointTemperature

Package neqsim.process.equipment.adsorber

Class neqsim.process.equipment.adsorber.AdsorptionBed

class AdsorptionBed extends TwoPortEquipment implements Serializable

serialVersionUID:

1001L

Serialized Fields

adsorbentBulkDensity

double adsorbentBulkDensity

Bulk density of the adsorbent packing (kg/m3).

adsorbentMaterial

String adsorbentMaterial

Name of the solid adsorbent material (matches AdsorptionParameters.csv).

bedDiameter

double bedDiameter

Internal diameter of the bed vessel (m).

bedLength

double bedLength

Length/height of the packed bed (m).

breakthroughOccurred

boolean breakthroughOccurred

Whether any component has broken through (outlet/inlet > threshold).

breakthroughThreshold

double breakthroughThreshold

Breakthrough threshold: fraction of inlet concentration (0-1).

breakthroughTime

double breakthroughTime

Time at which breakthrough was first detected (s).

calculatePressureDrop

boolean calculatePressureDrop

Whether to model pressure drop with Ergun equation.

currentPhase

AdsorptionCycleController.CyclePhase currentPhase

Current operating phase of the adsorber.

defaultKLDF

double defaultKLDF

Default LDF coefficient when not explicitly set (1/s).

desorptionMode

boolean desorptionMode

Whether the bed is currently in desorption mode.

desorptionPressure

double desorptionPressure

Desorption pressure for PSA (bara). Zero means same as feed.

desorptionTemperature

double desorptionTemperature

Desorption temperature for TSA (K). Zero means same as feed (PSA only).

elapsedTime

double elapsedTime

Total elapsed simulation time (s).

gasConcentation

double[][] gasConcentation

Gas-phase molar concentration in each cell (mol/m3). Dimensions: [numberOfCells][numberOfComponents].

isothermType

IsothermType isothermType

Isotherm model type to use.

kLDF

double[] kLDF

Overall LDF mass transfer coefficients (1/s), per component.

numberOfCells

int numberOfCells

Number of axial cells for the spatial grid.

particleDiameter

double particleDiameter

Particle diameter of the adsorbent pellets/beads (m).

particlePorosity

double particlePorosity

Particle porosity (intra-particle).

pressureDrop

double pressureDrop

Pressure drop across the bed (Pa).

purgeFlowRate

double purgeFlowRate

Desorption purge-gas flow rate (mol/s) — zero means use feed flow.

solidLoading

double[][] solidLoading

Solid-phase loading in each cell (mol/kg adsorbent). Dimensions: [numberOfCells][numberOfComponents].

system

SystemInterface system

Working copy of the thermodynamic system.

transientInitialised

boolean transientInitialised

Whether the transient grid has been initialised.

voidFraction

double voidFraction

Void fraction (inter-particle porosity).

Class neqsim.process.equipment.adsorber.AdsorptionCycleController

class AdsorptionCycleController extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

autoLoop

boolean autoLoop

Whether the cycle loops automatically.

completedCycles

int completedCycles

Total number of completed full cycles.

currentStepIndex

int currentStepIndex

Index of the current step in the schedule.

schedule

List<AdsorptionCycleController.PhaseStep> schedule

The cycle schedule: an ordered list of phase steps.

timeInCurrentStep

double timeInCurrentStep

Time elapsed within the current step (s).

transitionOnBreakthrough

boolean transitionOnBreakthrough

Whether to transition on breakthrough detection instead of time.

Class neqsim.process.equipment.adsorber.AdsorptionCycleController.PhaseStep

class PhaseStep extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

duration

double duration

Duration of this phase step (seconds).

phase

AdsorptionCycleController.CyclePhase phase

The cycle phase.

targetPressure

double targetPressure

Target pressure for this step (bara), or -1 if not applicable.

targetTemperature

double targetTemperature

Target temperature for this step (K), or -1 if not applicable.

Class neqsim.process.equipment.adsorber.MercuryRemovalBed

class MercuryRemovalBed extends TwoPortEquipment implements Serializable

serialVersionUID:

1002L

Serialized Fields

activationEnergy

double activationEnergy

Activation energy for the chemisorption reaction (J/mol).

bedDiameter

double bedDiameter

Internal diameter of the bed vessel (m).

bedLength

double bedLength

Length/height of the packed section (m).

breakthroughOccurred

boolean breakthroughOccurred

Whether breakthrough has been detected.

breakthroughThreshold

double breakthroughThreshold

Breakthrough threshold as fraction of inlet Hg concentration (0–1).

breakthroughTimeHours

double breakthroughTimeHours

Time at which breakthrough was first detected (hours).

bypassFraction

double bypassFraction

Fraction of bed that is bypassed due to channelling caused by degraded internals (0–1). At 0 there is no bypass. Gas that bypasses does not contact sorbent.

calculatePressureDrop

boolean calculatePressureDrop

Whether to calculate pressure drop via Ergun equation.

cellHgConcentration

double[] cellHgConcentration

Gas-phase Hg concentration in each cell (microgram/Nm3).

cellLoading

double[] cellLoading

Mercury loading in each cell (mg Hg / kg sorbent).

degradationFactor

double degradationFactor

Overall degradation factor (0–1). At 1.0 the bed is brand-new; at lower values the effective capacity and/or rate constant are reduced because of fouling, liquid carry-over, or other damage to column internals.

elapsedTimeHours

double elapsedTimeHours

Total elapsed on-stream time (hours).

maxMercuryCapacity

double maxMercuryCapacity

Maximum mercury loading capacity of the sorbent (mg Hg / kg sorbent). Typical PuraSpec values are 10–25 wt% Hg; default 10 wt% = 100 000 mg/kg.

mercuryIndex

int mercuryIndex

Index of the mercury component in the thermodynamic system (-1 if not present).

numberOfCells

int numberOfCells

Number of axial cells.

particleDiameter

double particleDiameter

Sorbent particle diameter (m).

pressureDrop

double pressureDrop

Pressure drop across the bed (Pa).

reactionRateConstant

double reactionRateConstant

First-order rate constant for chemisorption (1/s). Relates to the linear-driving-force approximation: r = k * C_Hg * (1 - theta). Typical value for PuraSpec-type CuS sorbents: 0.3-0.8 s⁻¹.

referenceTemperature

double referenceTemperature

Reference temperature for the rate constant (K).

replacementUtilisation

double replacementUtilisation

Practical sorbent utilisation at replacement (0–1). In practice operators change out sorbent when only a fraction of the theoretical capacity has been used, because the mass-transfer zone leaves the tail of the bed under-utilised and a safety margin is maintained before breakthrough. Typical values: 0.4–0.6 for single beds, 0.7–0.9 for lead–lag configurations.

sorbentBulkDensity

double sorbentBulkDensity

Bulk density of the sorbent (kg/m3).

sorbentType

String sorbentType

Name or trade-mark of the sorbent material (e.g. "PuraSpec", "MRU-CuS").

system

SystemInterface system

Working copy of the thermodynamic system.

transientInitialised

boolean transientInitialised

Whether the transient grid has been initialised.

voidFraction

double voidFraction

Void fraction (inter-particle porosity).

Class neqsim.process.equipment.adsorber.SimpleAdsorber

class SimpleAdsorber extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

absorptionEfficiency

double absorptionEfficiency

dT

double dT

HTU

double HTU

inStream

StreamInterface[] inStream

NTU

double NTU

numberOfStages

int numberOfStages

numberOfTheoreticalStages

double numberOfTheoreticalStages

outStream

StreamInterface[] outStream

setTemperature

boolean setTemperature

stageEfficiency

double stageEfficiency

system

SystemInterface system

temperatureOut

double temperatureOut

Package neqsim.process.equipment.battery

Class neqsim.process.equipment.battery.BatteryStorage

class BatteryStorage extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

capacity

double capacity

chargeEfficiency

double chargeEfficiency

currentPower

double currentPower

dischargeEfficiency

double dischargeEfficiency

stateOfCharge

double stateOfCharge

Package neqsim.process.equipment.blackoil

Class neqsim.process.equipment.blackoil.BlackOilSeparator

class BlackOilSeparator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

gasOut

SystemBlackOil gasOut

inlet

SystemBlackOil inlet

lastResult

BlackOilFlashResult lastResult

oilOut

SystemBlackOil oilOut

outletPressure

double outletPressure

outletTemperature

double outletTemperature

waterOut

SystemBlackOil waterOut

Package neqsim.process.equipment.capacity

Class neqsim.process.equipment.capacity.CapacityConstraint

class CapacityConstraint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentValue

double currentValue

Cached current value (updated when getCurrentValue() is called).

description

String description

Description of the constraint for documentation.

designValue

double designValue

Design/rated value for this constraint.

enabled

boolean enabled

Whether this constraint is enabled for capacity analysis.

maxValue

double maxValue

Absolute maximum value (for HARD constraints).

minValue

double minValue

Minimum required value (for constraints like residence time).

name

String name

Name of the constraint (e.g., "speed", "gasLoadFactor").

severity

CapacityConstraint.ConstraintSeverity severity

Severity level for optimization (CRITICAL, HARD, SOFT, ADVISORY).

type

CapacityConstraint.ConstraintType type

Type of constraint (HARD, SOFT, or DESIGN).

unit

String unit

Unit of measurement (e.g., "RPM", "m/s", "kW").

unitOverride

String unitOverride

Override unit for mutable unit changes.

warningThreshold

double warningThreshold

Fraction of design value that triggers a warning (e.g., 0.9 = 90%).

Package neqsim.process.equipment.compressor

Class neqsim.process.equipment.compressor.AntiSurge

class AntiSurge extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

controlStrategy

AntiSurge.ControlStrategy controlStrategy

currentSurgeFraction

double currentSurgeFraction

hotGasBypassFlow

double hotGasBypassFlow

isActive

boolean isActive

isSurge

boolean isSurge

lastSurgeFraction

double lastSurgeFraction

maximumRecycleFlow

double maximumRecycleFlow

maxSurgeCyclesBeforeTrip

int maxSurgeCyclesBeforeTrip

minimumRecycleFlow

double minimumRecycleFlow

pidIntegral

double pidIntegral

pidKd

double pidKd

pidKi

double pidKi

pidKp

double pidKp

pidLastError

double pidLastError

pidSetpoint

double pidSetpoint

predictionGain

double predictionGain

predictiveHorizon

double predictiveHorizon

surgeApproachRate

double surgeApproachRate

surgeControlFactor

double surgeControlFactor

surgeControlLineOffset

double surgeControlLineOffset

surgeControlLineSlope

double surgeControlLineSlope

surgeCycleCount

int surgeCycleCount

surgeCycleResetTime

double surgeCycleResetTime

surgeTripMargin

double surgeTripMargin

surgeWarningMargin

double surgeWarningMargin

targetValvePosition

double targetValvePosition

timeSinceLastSurge

double timeSinceLastSurge

useHotGasBypass

boolean useHotGasBypass

valvePosition

double valvePosition

valveRateLimit

double valveRateLimit

valveResponseTime

double valveResponseTime

Class neqsim.process.equipment.compressor.BoundaryCurve

class BoundaryCurve extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

chartConditions

double[] chartConditions

flow

double[] flow

flowFitter

org.apache.commons.math3.fitting.WeightedObservedPoints flowFitter

flowFitterFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction flowFitterFunc

head

double[] head

isActive

boolean isActive

Class neqsim.process.equipment.compressor.Compressor

class Compressor extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualCompressionRatio

double actualCompressionRatio

antiSurge

AntiSurge antiSurge

autoSized

boolean autoSized

Flag indicating if compressor has been auto-sized.

autoSpeedMode

boolean autoSpeedMode

calcPressureOut

boolean calcPressureOut

compressionRatio

double compressionRatio

compressorChart

CompressorChartInterface compressorChart

curveTemplate

String curveTemplate

Template used for curve generation.

degradationFactor

double degradationFactor

dH

double dH

driver

CompressorDriver driver

efficiencySolveTolerance

double efficiencySolveTolerance

electricalDesign

CompressorElectricalDesign electricalDesign

foulingFactor

double foulingFactor

inletEnthalpy

double inletEnthalpy

instrumentDesign

CompressorInstrumentDesign instrumentDesign

isentropicEfficiency

double isentropicEfficiency

isSetMaxDischargeTemperature

boolean isSetMaxDischargeTemperature

isSetMaxOutletPressure

boolean isSetMaxOutletPressure

limitSpeed

boolean limitSpeed

maxAccelerationRate

double maxAccelerationRate

maxDecelerationRate

double maxDecelerationRate

maxDischargeTemperature

double maxDischargeTemperature

Maximum discharge temperature in Kelvin for capacity constraint.

maxOutletPressure

double maxOutletPressure

maxspeed

double maxspeed

mechanicalDesign

CompressorMechanicalDesign mechanicalDesign

mechanicalLosses

CompressorMechanicalLosses mechanicalLosses

Mechanical losses model for seal gas and bearing calculations.

minspeed

double minspeed

numberOfCompressorCalcSteps

int numberOfCompressorCalcSteps

numberOfSpeedCurves

int numberOfSpeedCurves

Number of speed curves to generate.

operatingHistory

CompressorOperatingHistory operatingHistory

operatingHours

double operatingHours

operatingState

CompressorState operatingState

outTemperature

double outTemperature

polytropicEfficiency

double polytropicEfficiency

polytropicExponent

double polytropicExponent

polytropicFluidHead

double polytropicFluidHead

polytropicHead

double polytropicHead

polytropicHeadMeter

double polytropicHeadMeter

polytropicMethod

String polytropicMethod

powerSet

boolean powerSet

pressure

double pressure

pressureUnit

String pressureUnit

previousActualFlow

double previousActualFlow

previousPolyHead

double previousPolyHead

propertyProfile

CompressorPropertyProfile propertyProfile

rotationalInertia

double rotationalInertia

shutdownElapsedTime

double shutdownElapsedTime

shutdownProfile

ShutdownProfile shutdownProfile

solveSpeed

boolean solveSpeed

speed

double speed

speedAtShutdownStart

double speedAtShutdownStart

speedLimitWarningActive

boolean speedLimitWarningActive

startupElapsedTime

double startupElapsedTime

startupProfile

StartupProfile startupProfile

stoneWallWarningThreshold

double stoneWallWarningThreshold

surgeCriticalActive

boolean surgeCriticalActive

surgeCriticalThreshold

double surgeCriticalThreshold

surgeWarningActive

boolean surgeWarningActive

surgeWarningThreshold

double surgeWarningThreshold

targetSpeed

double targetSpeed

thermoSystem

SystemInterface thermoSystem

useCompressionRatio

boolean useCompressionRatio

useEnergyEfficiencyChart

boolean useEnergyEfficiencyChart

useGERG2008

boolean useGERG2008

useLeachman

boolean useLeachman

useOutTemperature

boolean useOutTemperature

usePolytropicCalc

boolean usePolytropicCalc

useRigorousPolytropicMethod

boolean useRigorousPolytropicMethod

useVega

boolean useVega

Class neqsim.process.equipment.compressor.CompressorChart

class CompressorChart extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

chartConditions

double[] chartConditions

chartSpeeds

ArrayList<Double> chartSpeeds

chartValues

ArrayList<CompressorCurve> chartValues

dischargeTemperatureCurves

double[][] dischargeTemperatureCurves

Calculated discharge temperature curves [speed][points] in Kelvin.

fanLawCorrectionFitter

org.apache.commons.math3.fitting.WeightedObservedPoints fanLawCorrectionFitter

fanLawCorrectionFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction fanLawCorrectionFunc

flow

double[][] flow

flowPolytropicEfficiency

double[][] flowPolytropicEfficiency

gamma

double gamma

Heat capacity ratio (gamma = Cp/Cv) for temperature calculations.

head

double[][] head

headUnit

String headUnit

inletPressure

double inletPressure

Inlet pressure in bara for pressure ratio calculations.

inletTemperature

double inletTemperature

Inlet temperature in Kelvin for discharge temperature calculations.

isStoneWall

boolean isStoneWall

isSurge

boolean isSurge

maxSpeedCurve

double maxSpeedCurve

minSpeedCurve

double minSpeedCurve

polytropicEfficiency

double[][] polytropicEfficiency

polytropicExponent

double polytropicExponent

Polytropic exponent for pressure ratio calculations.

powerCurves

double[][] powerCurves

Calculated power curves [speed][points] in kW.

pressureRatioCurves

double[][] pressureRatioCurves

Calculated pressure ratio curves [speed][points].

redflow

double[][] redflow

redflowPolytropicEfficiency

double[][] redflowPolytropicEfficiency

redhead

double[][] redhead

redpolytropicEfficiency

double[][] redpolytropicEfficiency

reducedFlowFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedFlowFitter

reducedHeadFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedHeadFitter

reducedHeadFitterFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedHeadFitterFunc

reducedPolytropicEfficiencyFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedPolytropicEfficiencyFitter

reducedPolytropicEfficiencyFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedPolytropicEfficiencyFunc

referenceDensity

double referenceDensity

Reference gas density in kg/m3 for power calculations.

referenceSpeed

double referenceSpeed

refMW

double refMW

refPressure

double refPressure

refTemperature

double refTemperature

refZ

double refZ

speed

double[] speed

stoneWallCurve

StoneWallCurve stoneWallCurve

surgeCurve

SafeSplineSurgeCurve surgeCurve

useCompressorChart

boolean useCompressorChart

useRealKappa

boolean useRealKappa

Class neqsim.process.equipment.compressor.CompressorChartAlternativeMapLookup

class CompressorChartAlternativeMapLookup extends CompressorChart implements Serializable

serialVersionUID:

1000L

Serialized Fields

chartConditions

double[] chartConditions

fanLawCorrectionFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction fanLawCorrectionFunc

gearRatio

double gearRatio

headUnit

String headUnit

isStoneWall

boolean isStoneWall

isSurge

boolean isSurge

reducedHeadFitterFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedHeadFitterFunc

reducedPolytropicEfficiencyFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedPolytropicEfficiencyFunc

referenceSpeed

double referenceSpeed

refMW

double refMW

refPressure

double refPressure

refTemperature

double refTemperature

refZ

double refZ

useCompressorChart

boolean useCompressorChart

useRealKappa

boolean useRealKappa

Class neqsim.process.equipment.compressor.CompressorChartAlternativeMapLookupExtrapolate

class CompressorChartAlternativeMapLookupExtrapolate extends CompressorChartAlternativeMapLookup implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.compressor.CompressorChartKhader2015

class CompressorChartKhader2015 extends CompressorChartAlternativeMapLookupExtrapolate implements Serializable

serialVersionUID:

1000L

Serialized Fields

fluid

SystemInterface fluid

impellerOuterDiameter

double impellerOuterDiameter

ref_fluid

SystemInterface ref_fluid

stream

StreamInterface stream

Class neqsim.process.equipment.compressor.CompressorChartMWInterpolation

class CompressorChartMWInterpolation extends CompressorChart implements Serializable

serialVersionUID:

1001L

Serialized Fields

allowExtrapolation

boolean allowExtrapolation

Flag to allow extrapolation outside the MW range.

autoGenerateStoneWallCurves

boolean autoGenerateStoneWallCurves

Flag to auto-generate stone wall curves when maps are added.

autoGenerateSurgeCurves

boolean autoGenerateSurgeCurves

Flag to auto-generate surge curves when maps are added.

interpolationEnabled

boolean interpolationEnabled

Flag indicating if interpolation is needed.

mapCharts

List<CompressorChart> mapCharts

List of compressor charts corresponding to each MW.

mapMolecularWeights

List<Double> mapMolecularWeights

List of MW values for which maps are defined, sorted in ascending order.

operatingMW

double operatingMW

Current operating molecular weight for interpolation.

useActualMW

boolean useActualMW

Flag to automatically use the inlet stream's molecular weight.

Class neqsim.process.equipment.compressor.CompressorConstraintConfig

class CompressorConstraintConfig extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allowNearSurgeOperation

boolean allowNearSurgeOperation

Whether to allow operation near surge (within control margin).

antiSurgeControlMargin

double antiSurgeControlMargin

Anti-surge control line margin above surge line (0-1).

driverPowerMargin

double driverPowerMargin

Driver power margin required (0-1).

enforceHardLimits

boolean enforceHardLimits

Whether to enforce hard limits (vs soft warnings).

maxDischargePressure

double maxDischargePressure

Maximum discharge pressure in bara.

maxDischargeTemperature

double maxDischargeTemperature

Maximum discharge temperature in Kelvin.

maxPower

double maxPower

Maximum power in kW (absolute limit).

maxPowerUtilization

double maxPowerUtilization

Maximum power utilization as fraction of available power (0-1).

maxPressureRatioPerStage

double maxPressureRatioPerStage

Maximum pressure ratio per stage.

maxRecycleValveOpening

double maxRecycleValveOpening

Anti-surge recycle valve maximum opening (0-1).

maxShaftTorque

double maxShaftTorque

Maximum shaft torque in Nm.

maxSpeedRatio

double maxSpeedRatio

Maximum speed as fraction of rated speed.

maxSuctionTemperature

double maxSuctionTemperature

Maximum suction temperature in Kelvin.

maxTemperatureRisePerStage

double maxTemperatureRisePerStage

Maximum temperature rise per stage in Kelvin.

maxVibration

double maxVibration

Maximum vibration amplitude in mm/s.

minPower

double minPower

Minimum power in kW (for stable operation).

minSpeedRatio

double minSpeedRatio

Minimum speed as fraction of rated speed.

minStonewallMargin

double minStonewallMargin

Minimum stonewall margin as fraction of stonewall flow (0-1).

minSuctionPressure

double minSuctionPressure

Minimum suction pressure in bara.

minSurgeMargin

double minSurgeMargin

Minimum surge margin as fraction of surge flow (0-1).

ratedSpeed

double ratedSpeed

Rated speed in RPM.

useAntiSurgeControl

boolean useAntiSurgeControl

Whether to use anti-surge control.

Class neqsim.process.equipment.compressor.CompressorCurve

class CompressorCurve extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flow

double[] flow

flowPolytropicEfficiency

double[] flowPolytropicEfficiency

head

double[] head

polytropicEfficiency

double[] polytropicEfficiency

speed

double speed

Class neqsim.process.equipment.compressor.CompressorCurveCorrections

class CompressorCurveCorrections extends Object implements Serializable

serialVersionUID:

1001L

Class neqsim.process.equipment.compressor.CompressorCurveTemplate

class CompressorCurveTemplate extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

name

String name

Name/identifier for this template.

polytropicEfficiencies

double[][] polytropicEfficiencies

Polytropic efficiency values (%) for each curve. Each row corresponds to a speed.

reducedFlows

double[][] reducedFlows

Reduced flow values (flow/speed) for each curve. Each row corresponds to a speed.

reducedHeads

double[][] reducedHeads

Reduced head values (head/speed²) for each curve. Each row corresponds to a speed.

referenceSpeed

double referenceSpeed

Reference speed used for normalization (RPM).

speeds

double[] speeds

Speed values for each curve (RPM).

Class neqsim.process.equipment.compressor.CompressorDriver

class CompressorDriver extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

ambientPressure

double ambientPressure

ambientTemperature

double ambientTemperature

currentOverloadTime

double currentOverloadTime

driverEfficiency

double driverEfficiency

driverType

DriverType driverType

inertia

double inertia

isoTemperature

double isoTemperature

maxAcceleration

double maxAcceleration

maxDeceleration

double maxDeceleration

maxPower

double maxPower

maxPowerCurveCoeffs

double[] maxPowerCurveCoeffs

maxPowerCurvePowers

double[] maxPowerCurvePowers

maxPowerCurveSpeeds

double[] maxPowerCurveSpeeds

maxSpeed

double maxSpeed

minPower

double minPower

minSpeed

double minSpeed

overloadProtectionEnabled

boolean overloadProtectionEnabled

overloadTripDelay

double overloadTripDelay

ratedPower

double ratedPower

ratedSpeed

double ratedSpeed

responseTime

double responseTime

temperatureDerateFactor

double temperatureDerateFactor

useMaxPowerCurve

boolean useMaxPowerCurve

useMaxPowerCurveTable

boolean useMaxPowerCurveTable

vfdEfficiencyCoeffs

double[] vfdEfficiencyCoeffs

Class neqsim.process.equipment.compressor.CompressorMechanicalLosses

class CompressorMechanicalLosses extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

bearingType

CompressorMechanicalLosses.BearingType bearingType

Bearing type.

bufferGasFlow

double bufferGasFlow

Buffer gas flow rate [Nm³/hr per seal].

dischargePressure

double dischargePressure

Compressor discharge pressure [bara].

gasCompressibilityZ

double gasCompressibilityZ

Gas compressibility factor at seal conditions.

gasMolecularWeight

double gasMolecularWeight

Gas molecular weight [kg/kmol].

lubeOilFlowRate

double lubeOilFlowRate

Lube oil flow rate [L/min].

lubeOilInletTemp

double lubeOilInletTemp

Lube oil inlet temperature [°C].

lubeOilOutletTemp

double lubeOilOutletTemp

Lube oil outlet temperature [°C].

numberOfRadialBearings

int numberOfRadialBearings

Number of radial bearings.

numberOfSeals

int numberOfSeals

Number of seal assemblies (typically 2 for single shaft).

numberOfThrustBearings

int numberOfThrustBearings

Number of thrust bearings.

primarySealLeakage

double primarySealLeakage

Primary seal leakage rate [Nm³/hr per seal].

radialBearingLoss

double radialBearingLoss

Radial bearing power loss [kW per bearing].

sealGasSupplyPressure

double sealGasSupplyPressure

Seal gas supply pressure [bara].

sealGasSupplyTemperature

double sealGasSupplyTemperature

Seal gas supply temperature [°C].

sealType

CompressorMechanicalLosses.SealType sealType

Seal type (default: tandem dry gas seal).

secondarySealLeakage

double secondarySealLeakage

Secondary seal leakage rate [Nm³/hr per seal].

separationGasFlow

double separationGasFlow

Separation gas (nitrogen) flow rate [Nm³/hr per seal].

shaftDiameter

double shaftDiameter

Shaft diameter at seal location [mm].

shaftSpeed

double shaftSpeed

Shaft speed [rpm].

suctionPressure

double suctionPressure

Compressor suction pressure [bara].

thrustBearingLoss

double thrustBearingLoss

Thrust bearing power loss [kW].

Class neqsim.process.equipment.compressor.CompressorOperatingHistory

class CompressorOperatingHistory extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

history

List<CompressorOperatingHistory.OperatingPoint> history

inSurgeCondition

boolean inSurgeCondition

lastRecordedTime

double lastRecordedTime

peakFlowPoint

CompressorOperatingHistory.OperatingPoint peakFlowPoint

peakHeadPoint

CompressorOperatingHistory.OperatingPoint peakHeadPoint

peakPowerPoint

CompressorOperatingHistory.OperatingPoint peakPowerPoint

surgeEntryTime

double surgeEntryTime

surgeEventCount

int surgeEventCount

totalTimeInSurge

double totalTimeInSurge

Class neqsim.process.equipment.compressor.CompressorOperatingHistory.OperatingPoint

class OperatingPoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

efficiency

double efficiency

flow

double flow

head

double head

inletPressure

double inletPressure

inletTemperature

double inletTemperature

outletPressure

double outletPressure

outletTemperature

double outletTemperature

power

double power

speed

double speed

state

CompressorState state

stoneWallMargin

double stoneWallMargin

surgeMargin

double surgeMargin

time

double time

Class neqsim.process.equipment.compressor.CompressorPropertyProfile

class CompressorPropertyProfile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fluid

ArrayList<SystemInterface> fluid

isActive

boolean isActive

Class neqsim.process.equipment.compressor.CompressorTrain

class CompressorTrain extends TwoPortEquipment implements Serializable

serialVersionUID:

1001L

Serialized Fields

aftercooler

Cooler aftercooler

Aftercooler.

aftercoolerTemperature

double aftercoolerTemperature

Default aftercooler outlet temperature in Kelvin.

compressor

Compressor compressor

The compressor stage.

inletScrubber

Separator inletScrubber

Inlet scrubber for liquid knockout.

useAftercooler

boolean useAftercooler

Whether to include an aftercooler.

useInletScrubber

boolean useInletScrubber

Whether to include an inlet scrubber.

Class neqsim.process.equipment.compressor.CompressorWashing

class CompressorWashing extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

currentFoulingFactor

double currentFoulingFactor

Current accumulated fouling factor (0 = clean, 1 = fully fouled).

detergentConcentration

double detergentConcentration

Detergent concentration [%].

dominantFoulingType

CompressorWashing.FoulingType dominantFoulingType

Dominant fouling type.

environmentalSeverity

double environmentalSeverity

Environmental severity factor (1.0 = normal, 2.0 = harsh offshore).

hoursSinceLastWash

double hoursSinceLastWash

Operating hours since last wash.

inletFilterEfficiency

double inletFilterEfficiency

Inlet filtration efficiency (0-1).

lastWashMethod

CompressorWashing.WashingMethod lastWashMethod

Last wash method used.

maxAllowableFouling

double maxAllowableFouling

Maximum fouling before forced shutdown (0-1).

offlineSoakTime

double offlineSoakTime

Offline soak time [hours].

onlineWashDuration

double onlineWashDuration

Online wash duration [minutes].

onlineWashWaterFlow

double onlineWashWaterFlow

Online wash water flow rate [L/min].

totalOperatingHours

double totalOperatingHours

Total operating hours.

useDetergent

boolean useDetergent

Use detergent additive.

washHistory

List<CompressorWashing.WashEvent> washHistory

Wash history for tracking.

washWaterTemperature

double washWaterTemperature

Wash water temperature [°C].

Class neqsim.process.equipment.compressor.CompressorWashing.WashEvent

class WashEvent extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

foulingAfter

double foulingAfter

foulingBefore

double foulingBefore

method

CompressorWashing.WashingMethod method

operatingHoursAtWash

double operatingHoursAtWash

recovery

double recovery

timestamp

long timestamp

Class neqsim.process.equipment.compressor.OperatingEnvelope

class OperatingEnvelope extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxDischargeTemperature

double maxDischargeTemperature

Maximum discharge temperature (Kelvin).

maxHead

double maxHead

Maximum head (kJ/kg).

maxPower

double maxPower

Maximum power (kW).

maxSpeed

double maxSpeed

Maximum operating speed (RPM).

minPower

double minPower

Minimum power for stable operation (kW).

minSpeed

double minSpeed

Minimum operating speed (RPM).

ratedSpeed

double ratedSpeed

Rated speed (RPM).

stonewallFlows

double[] stonewallFlows

Stonewall line flow points (m3/h).

stonewallHeads

double[] stonewallHeads

Stonewall line head points (kJ/kg).

stonewallPolynomialCoeffs

double[] stonewallPolynomialCoeffs

Stonewall polynomial coefficients.

stonewallSpeeds

double[] stonewallSpeeds

Stonewall line speed points (RPM).

surgeFlows

double[] surgeFlows

Surge line flow points (m3/h).

surgeHeads

double[] surgeHeads

Surge line head points (kJ/kg).

surgePolynomialCoeffs

double[] surgePolynomialCoeffs

Surge line polynomial coefficients (head = a0 + a1*Q + a2*Q^2 + ...).

surgeSpeeds

double[] surgeSpeeds

Surge line speed points (RPM).

usePolynomialFit

boolean usePolynomialFit

Use polynomial fit for surge line.

Class neqsim.process.equipment.compressor.SafeSplineStoneWallCurve

class SafeSplineStoneWallCurve extends StoneWallCurve implements Serializable

serialVersionUID:

1001L

Serialized Fields

isSinglePoint

boolean isSinglePoint

Flag indicating single-point stone wall (for single-speed compressors). When true, stone wall flow is constant regardless of head.

singleStoneWallFlow

double singleStoneWallFlow

Single stone wall flow value used when isSinglePoint is true.

singleStoneWallHead

double singleStoneWallHead

Single stone wall head value used when isSinglePoint is true.

sortedFlow

double[] sortedFlow

sortedHead

double[] sortedHead

Class neqsim.process.equipment.compressor.SafeSplineSurgeCurve

class SafeSplineSurgeCurve extends SurgeCurve implements Serializable

serialVersionUID:

1001L

Serialized Fields

isSinglePoint

boolean isSinglePoint

Flag indicating single-point surge (for single-speed compressors). When true, surge flow is constant regardless of head.

singleSurgeFlow

double singleSurgeFlow

Single surge flow value used when isSinglePoint is true.

singleSurgeHead

double singleSurgeHead

Single surge head value used when isSinglePoint is true.

sortedFlow

double[] sortedFlow

sortedHead

double[] sortedHead

Class neqsim.process.equipment.compressor.ShutdownProfile

class ShutdownProfile extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

antisurgeOpenDelay

double antisurgeOpenDelay

coastdownTime

double coastdownTime

depressurizationTime

double depressurizationTime

emergencyRampRate

double emergencyRampRate

idleRundownTime

double idleRundownTime

maximumDepressurizationRate

double maximumDepressurizationRate

minimumIdleSpeed

double minimumIdleSpeed

normalRampRate

double normalRampRate

openAntisurgeOnShutdown

boolean openAntisurgeOnShutdown

profile

List<ShutdownProfile.ProfilePoint> profile

rapidRampRate

double rapidRampRate

shutdownType

ShutdownProfile.ShutdownType shutdownType

Class neqsim.process.equipment.compressor.ShutdownProfile.ProfilePoint

class ProfilePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

action

String action

targetSpeed

double targetSpeed

time

double time

Class neqsim.process.equipment.compressor.StartupProfile

class StartupProfile extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

antisurgeOpeningDuration

double antisurgeOpeningDuration

idleHoldTime

double idleHoldTime

maximumVibration

double maximumVibration

minimumIdleSpeed

double minimumIdleSpeed

minimumLubeOilTemperature

double minimumLubeOilTemperature

minimumOilPressure

double minimumOilPressure

normalRampRate

double normalRampRate

profile

List<StartupProfile.ProfilePoint> profile

requireAntisurgeOpen

boolean requireAntisurgeOpen

warmupRampRate

double warmupRampRate

Class neqsim.process.equipment.compressor.StartupProfile.ProfilePoint

class ProfilePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

checkDescription

String checkDescription

holdDuration

double holdDuration

targetSpeed

double targetSpeed

time

double time

Class neqsim.process.equipment.compressor.StoneWallCurve

class StoneWallCurve extends BoundaryCurve implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.compressor.SurgeCurve

class SurgeCurve extends BoundaryCurve implements Serializable

serialVersionUID:

1000L

Package neqsim.process.equipment.compressor.driver

Class neqsim.process.equipment.compressor.driver.DriverCurveBase

class DriverCurveBase extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

altitude

double altitude

Altitude in meters above sea level.

ambientTemperature

double ambientTemperature

Ambient temperature in Celsius.

designEfficiency

double designEfficiency

Design efficiency at rated conditions.

maxSpeed

double maxSpeed

Maximum speed in RPM.

minSpeed

double minSpeed

Minimum speed in RPM.

ratedPower

double ratedPower

Rated power in kW.

ratedSpeed

double ratedSpeed

Rated speed in RPM.

Class neqsim.process.equipment.compressor.driver.ElectricMotorDriver

class ElectricMotorDriver extends DriverCurveBase implements Serializable

serialVersionUID:

1002L

Serialized Fields

baseSpeedRatio

double baseSpeedRatio

Base speed for field weakening region (fraction of rated speed).

efficiency25

double efficiency25

Part-load efficiency at 25% load (fraction of full load efficiency).

efficiency50

double efficiency50

Part-load efficiency at 50% load (fraction of full load efficiency).

efficiency75

double efficiency75

Part-load efficiency at 75% load (fraction of full load efficiency).

efficiencyClass

String efficiencyClass

Motor efficiency class (IE1, IE2, IE3, IE4).

hasVFD

boolean hasVFD

Whether motor has a variable frequency drive.

insulationTempLimit

double insulationTempLimit

Insulation class temperature limit in Celsius.

maxSpeedRatio

double maxSpeedRatio

Maximum speed ratio (typically 1.2-1.5 with field weakening).

minSpeedRatio

double minSpeedRatio

Minimum speed ratio with VFD (fraction of rated speed).

serviceFactor

double serviceFactor

Service factor (continuous overload capability).

Class neqsim.process.equipment.compressor.driver.GasTurbineDriver

class GasTurbineDriver extends DriverCurveBase implements Serializable

serialVersionUID:

1001L

Serialized Fields

altitudeDeratingFactor

double altitudeDeratingFactor

Altitude derating factor (fraction per 305m / 1000ft).

efficiencyCoeffs

double[] efficiencyCoeffs

Part-load efficiency curve coefficients.

fuelLHV

double fuelLHV

Fuel gas lower heating value in kJ/kg.

ratedHeatRate

double ratedHeatRate

Heat rate at rated conditions in kJ/kWh.

speedTurndown

double speedTurndown

Speed turndown capability (minimum speed as fraction of rated).

temperatureDeratingFactor

double temperatureDeratingFactor

Temperature derating factor (fraction per °C above ISO).

Class neqsim.process.equipment.compressor.driver.SteamTurbineDriver

class SteamTurbineDriver extends DriverCurveBase implements Serializable

serialVersionUID:

1003L

Serialized Fields

exhaustPressure

double exhaustPressure

Exhaust pressure in bara.

extractionFlow

double extractionFlow

Extraction flow rate in kg/s.

extractionPressure

double extractionPressure

Extraction pressure in bara (for extraction turbines).

incrementalSteamRate

double incrementalSteamRate

Incremental steam rate in kg/kWh.

inletPressure

double inletPressure

Inlet steam pressure in bara.

inletTemperature

double inletTemperature

Inlet steam temperature in Celsius.

noLoadSteamRate

double noLoadSteamRate

Steam rate at no-load in kg/kWh.

speedTurndown

double speedTurndown

Speed turndown capability.

turbineType

SteamTurbineDriver.TurbineType turbineType

Turbine type.

Package neqsim.process.equipment.diffpressure

Class neqsim.process.equipment.diffpressure.Orifice

class Orifice extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

C

Double C

diameter

Double diameter

diameter_outer

Double diameter_outer

dischargeCoefficient

double dischargeCoefficient

dp

Double dp

orificeDiameter

double orificeDiameter

pressureDownstream

double pressureDownstream

pressureUpstream

double pressureUpstream

Package neqsim.process.equipment.distillation

Class neqsim.process.equipment.distillation.ColumnSpecification

class ColumnSpecification extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentName

String componentName

location

ColumnSpecification.ProductLocation location

maxIterations

int maxIterations

targetValue

double targetValue

tolerance

double tolerance

type

ColumnSpecification.SpecificationType type

Class neqsim.process.equipment.distillation.Condenser

class Condenser extends SimpleTray implements Serializable

serialVersionUID:

1000L

Serialized Fields

duty

double duty

mixedStreamSplitter

Splitter mixedStreamSplitter

reflux_unit

String reflux_unit

reflux_value

double reflux_value

refluxIsSet

boolean refluxIsSet

refluxRatio

double refluxRatio

separation_with_liquid_reflux

boolean separation_with_liquid_reflux

totalCondenser

boolean totalCondenser

Class neqsim.process.equipment.distillation.DistillationColumn

class DistillationColumn extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottomSpecification

ColumnSpecification bottomSpecification

Column specification for the bottom (reboiler) end.

bottomTrayPressure

double bottomTrayPressure

condenserCoolingDuty

double condenserCoolingDuty

condenserTemperature

double condenserTemperature

distoperations

ProcessSystem distoperations

doInitializion

boolean doInitializion

doMultiPhaseCheck

boolean doMultiPhaseCheck

dynamicColumnEnabled

boolean dynamicColumnEnabled

Whether the dynamic tray model is enabled for transient simulation.

dynamicEnergyEnabled

boolean dynamicEnergyEnabled

Whether per-tray energy balance is active (uses PH flash instead of TP).

enforceEnergyBalanceTolerance

boolean enforceEnergyBalanceTolerance

Control whether energy residual must satisfy tolerance before convergence.

enforceMeshResidualTolerance

boolean enforceMeshResidualTolerance

Control whether the MESH residual vector must satisfy tolerance before convergence.

enthalpyBalanceTolerance

double enthalpyBalanceTolerance

Enthalpy balance convergence tolerance.

enthalpyBalanceToleranceCustomized

boolean enthalpyBalanceToleranceCustomized

Track whether enthalpy balance tolerance has been manually overridden.

err

double err

Error measure used in solver to check convergence in run().

feedmixer

Mixer feedmixer

feedStreams

Map<Integer, List<StreamInterface>> feedStreams

Instead of Map<Integer,StreamInterface>, we store a list of feed streams per tray number. This allows multiple feeds to the same tray.

gasOutStream

StreamInterface gasOutStream

hasCondenser

boolean hasCondenser

hasReboiler

boolean hasReboiler

heater

Heater heater

innerLoopSteps

int innerLoopSteps

Number of simplified inner-loop iterations between rigorous flash updates in the IO solver. Higher values reduce flash count but may reduce accuracy. Default 3.

internalDiameter

double internalDiameter

lastBottomSpecificationResidual

double lastBottomSpecificationResidual

Last reported bottom specification residual.

lastEnergyResidual

double lastEnergyResidual

Last recorded relative enthalpy residual.

lastIterationCount

int lastIterationCount

Last number of iterations executed by the active solver.

lastMassResidual

double lastMassResidual

Last recorded relative mass balance residual.

lastSolveTimeSeconds

double lastSolveTimeSeconds

Duration of the latest solve step in seconds.

lastTemperatureResidual

double lastTemperatureResidual

Last recorded average temperature residual in Kelvin.

lastTopSpecificationResidual

double lastTopSpecificationResidual

Last reported top specification residual.

liquidOutStream

StreamInterface liquidOutStream

massBalanceTolerance

double massBalanceTolerance

Mass balance convergence tolerance.

massBalanceToleranceCustomized

boolean massBalanceToleranceCustomized

Track whether mass balance tolerance has been manually overridden.

maxAdaptiveRelaxation

double maxAdaptiveRelaxation

Maximum relaxation factor allowed by the adaptive controller.

maxEnergyRelaxationWeight

double maxEnergyRelaxationWeight

Cap applied to energy residual when adjusting relaxation.

maxNumberOfIterations

int maxNumberOfIterations

mechanicalDesign

DistillationColumnMechanicalDesign mechanicalDesign

Mechanical design for the distillation column.

meshResidualTolerance

double meshResidualTolerance

Scaled MESH residual convergence tolerance.

minInsideOutRelaxation

double minInsideOutRelaxation

Minimum relaxation factor allowed for the inside-out tear streams.

minSequentialRelaxation

double minSequentialRelaxation

Minimum relaxation factor used when adaptive damping scales down the sequential step.

minTemperatureRelaxation

double minTemperatureRelaxation

Minimum relaxation applied when blending tray temperatures.

murphreeEfficiency

double murphreeEfficiency

Murphree tray efficiency applied to each equilibrium stage (0..1). Default 1.0 = ideal.

numberOfTrays

int numberOfTrays

reactive

boolean reactive

When true, trays in the reactive section use ReactiveTray (simultaneous chemical + phase equilibrium via the Modified RAND method) instead of standard VLE SimpleTray. Set this before the first SimulationInterface.run() call.

reactiveEndTray

int reactiveEndTray

Last tray index (0-based, inclusive) of the reactive section. A value of -1 means all middle trays are reactive.

reactiveStartTray

int reactiveStartTray

First tray index (0-based, inclusive) of the reactive section. A value of -1 means all middle trays (i.e. excluding reboiler/condenser) are reactive.

reboilerTemperature

double reboilerTemperature

relaxationDecreaseFactor

double relaxationDecreaseFactor

Factor used to shrink the relaxation factor when residuals grow.

relaxationFactor

double relaxationFactor

Relaxation factor used when DistillationColumn.SolverType.DAMPED_SUBSTITUTION is active.

relaxationIncreaseFactor

double relaxationIncreaseFactor

Factor used to expand the relaxation factor when residuals shrink.

separator2

Separator separator2

solverType

DistillationColumn.SolverType solverType

Selected solver algorithm. Defaults to direct substitution.

stream_3

StreamInterface stream_3

stream_3isset

boolean stream_3isset

temperatureTolerance

double temperatureTolerance

Temperature convergence tolerance.

temperatureToleranceCustomized

boolean temperatureToleranceCustomized

Track whether temperature tolerance has been manually overridden.

topSpecification

ColumnSpecification topSpecification

Column specification for the top (condenser) end.

topTrayPressure

double topTrayPressure

trayDryPressureDrop

double trayDryPressureDrop

Dry tray pressure drop in Pa per tray — for vapor hydraulic model.

trays

ArrayList<SimpleTray> trays

trayWeirHeight

double trayWeirHeight

Weir height on each tray in metres.

trayWeirLength

double trayWeirLength

Weir length (crest length) on each tray in metres.

unassignedFeedStreams

List<StreamInterface> unassignedFeedStreams

Class neqsim.process.equipment.distillation.PackedColumn

class PackedColumn extends DistillationColumn implements Serializable

serialVersionUID:

1000L

Serialized Fields

columnDiameter

double columnDiameter

Column internal diameter [m]. If <= 0, auto-sized from hydraulics.

designFloodFraction

double designFloodFraction

Design flood fraction (0-1). Typical 0.65-0.75 for packed columns.

floodingVelocity

double floodingVelocity

Flooding velocity [m/s].

hetp

double hetp

HETP from hydraulics calculation [m].

hydraulicsOk

boolean hydraulicsOk

Whether hydraulics design is feasible.

packedHeight

double packedHeight

Packed bed height [m].

packingPressureDrop

double packingPressureDrop

Total packing pressure drop [Pa].

packingType

String packingType

Packing type name.

percentFlood

double percentFlood

Percent flooding at operating conditions.

structuredPacking

boolean structuredPacking

Whether packing is structured (true) or random (false).

theoreticalStages

double theoreticalStages

Number of theoretical stages from HETP (packed_height / HETP).

Class neqsim.process.equipment.distillation.RateBasedPackedColumn

class RateBasedPackedColumn extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

columnDiameter

double columnDiameter

Column internal diameter in metres.

columnHomotopySteps

int columnHomotopySteps

Number of homotopy continuation steps for the equation-oriented solver.

columnResidualTolerance

double columnResidualTolerance

Normalized residual tolerance for the column-wide equation-oriented solver.

columnSolver

RateBasedPackedColumn.ColumnSolver columnSolver

Column-level profile solver used for counter-current coupling.

componentTransferTotals

Map<String,Double> componentTransferTotals

Last calculated component transfer totals, positive for gas-to-liquid transfer.

convergenceTolerance

double convergenceTolerance

Outlet convergence tolerance in mol/s.

filmModel

RateBasedPackedColumn.FilmModel filmModel

Multicomponent film model used for component-transfer calculations.

gasInStream

StreamInterface gasInStream

Gas inlet stream entering the bottom of the packed section.

gasOutStream

StreamInterface gasOutStream

Gas outlet stream leaving the top of the packed section.

heatTransferCorrectionFactor

double heatTransferCorrectionFactor

Global correction factor for interphase heat-transfer coefficients.

heatTransferModel

RateBasedPackedColumn.HeatTransferModel heatTransferModel

Heat-transfer model used for interphase heat exchange.

lastColumnEnergyBalanceResidual

double lastColumnEnergyBalanceResidual

Last maximum column energy-balance residual in W-equivalent stream basis.

lastColumnResidualIterations

int lastColumnResidualIterations

Last equation-oriented Newton iteration count.

lastColumnResidualNorm

double lastColumnResidualNorm

Last equation-oriented residual norm.

lastConvergenceResidual

double lastConvergenceResidual

Last convergence residual in mol/s.

lastGasComponentBalanceResidual

double lastGasComponentBalanceResidual

Last maximum gas component-balance residual in mol/s.

lastIterationCount

int lastIterationCount

Number of iterations used by the last run.

lastLiquidComponentBalanceResidual

double lastLiquidComponentBalanceResidual

Last maximum liquid component-balance residual in mol/s.

liquidInStream

StreamInterface liquidInStream

Liquid inlet stream entering the top of the packed section.

liquidOutStream

StreamInterface liquidOutStream

Liquid outlet stream leaving the bottom of the packed section.

massTransferCorrectionFactor

double massTransferCorrectionFactor

Global correction factor for film mass-transfer coefficients.

massTransferCorrelation

RateBasedPackedColumn.MassTransferCorrelation massTransferCorrelation

Mass-transfer correlation used by the segment calculations.

maxColumnResidualIterations

int maxColumnResidualIterations

Maximum Newton iterations for the column-wide equation-oriented solver.

maxHeatTransferFractionPerSegment

double maxHeatTransferFractionPerSegment

Maximum fraction of the available thermal approach transferred in one segment.

maxIterations

int maxIterations

Maximum profile iterations for counter-current convergence.

maxSegmentResidualIterations

int maxSegmentResidualIterations

Maximum Newton iterations for the simultaneous segment residual solve.

maxTransferFractionPerSegment

double maxTransferFractionPerSegment

Maximum fraction of available component moles transferred in one segment.

numberOfSegments

int numberOfSegments

Number of axial calculation segments.

packedHeight

double packedHeight

Packed height in metres.

packingSpecification

PackingSpecification packingSpecification

Packing specification used in all segments.

segmentResidualTolerance

double segmentResidualTolerance

Normalized residual tolerance for the simultaneous segment solver.

segmentResults

List<RateBasedPackedColumn.SegmentResult> segmentResults

Last calculated segment results from bottom to top.

segmentSolver

RateBasedPackedColumn.SegmentSolver segmentSolver

Segment solver used for heat, mass, and interface-equilibrium coupling.

totalAbsoluteMolarTransfer

double totalAbsoluteMolarTransfer

Total absolute molar transfer in the last converged profile.

transferComponents

List<String> transferComponents

Optional transfer component whitelist. Empty means all components are considered.

Class neqsim.process.equipment.distillation.RateBasedPackedColumn.SegmentResult

class SegmentResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentMoleTransfer

Map<String,Double> componentMoleTransfer

Component transfer map in mol/s, positive for gas-to-liquid.

enthalpyBalanceResidualW

double enthalpyBalanceResidualW

Total outlet enthalpy-balance residual in W-equivalent stream basis.

gasDensity

double gasDensity

Gas density in kg/m3.

gasDiffusivity

double gasDiffusivity

Gas diffusivity in m2/s.

gasHeatTransferCoefficient

double gasHeatTransferCoefficient

Gas-side volumetric heat-transfer coefficient in W/(m3 K).

gasMolarFlow

double gasMolarFlow

Gas molar flow in mol/s.

gasPressureBar

double gasPressureBar

Gas pressure in bara.

gasTemperatureK

double gasTemperatureK

Gas temperature in kelvin.

gasViscosity

double gasViscosity

Gas viscosity in kg/(m s).

heatBalanceResidualW

double heatBalanceResidualW

Interfacial heat-balance residual in W.

heatTransferRateW

double heatTransferRateW

Interphase heat-transfer rate in W, positive from gas to liquid.

heightFromBottom

double heightFromBottom

Segment midpoint height from bottom in metres.

interfaceEquilibriumRatios

Map<String,Double> interfaceEquilibriumRatios

Interface gas-to-liquid equilibrium ratios by component.

interfaceGasMoleFractions

Map<String,Double> interfaceGasMoleFractions

Gas-side interface equilibrium mole fractions by component.

interfaceLiquidMoleFractions

Map<String,Double> interfaceLiquidMoleFractions

Liquid-side interface equilibrium mole fractions by component.

interfaceTemperatureK

double interfaceTemperatureK

Interface equilibrium temperature in kelvin.

kGa

double kGa

Gas-phase volumetric mass-transfer coefficient in 1/s.

kLa

double kLa

Liquid-phase volumetric mass-transfer coefficient in 1/s.

liquidDensity

double liquidDensity

Liquid density in kg/m3.

liquidDiffusivity

double liquidDiffusivity

Liquid diffusivity in m2/s.

liquidHeatTransferCoefficient

double liquidHeatTransferCoefficient

Liquid-side volumetric heat-transfer coefficient in W/(m3 K).

liquidMolarFlow

double liquidMolarFlow

Liquid molar flow in mol/s.

liquidPressureBar

double liquidPressureBar

Liquid pressure in bara.

liquidTemperatureK

double liquidTemperatureK

Liquid temperature in kelvin.

liquidViscosity

double liquidViscosity

Liquid viscosity in kg/(m s).

maxFluxResidualMolPerSec

double maxFluxResidualMolPerSec

Maximum component flux residual in mol/s.

netMolarTransfer

double netMolarTransfer

Net molar transfer in mol/s, positive for gas-to-liquid.

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

Overall volumetric interphase heat-transfer coefficient in W/(m3 K).

percentFlood

double percentFlood

Percent of flooding.

pressureDropPerMeter

double pressureDropPerMeter

Pressure drop per metre in Pa/m.

residualIterations

int residualIterations

Iterations used by the simultaneous residual solver.

segmentNumber

int segmentNumber

Segment number from bottom to top.

segmentSolver

String segmentSolver

Segment solver used to calculate this result.

wettedArea

double wettedArea

Wetted area in m2/m3.

Class neqsim.process.equipment.distillation.ReactiveTray

class ReactiveTray extends SimpleTray implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.distillation.Reboiler

class Reboiler extends SimpleTray implements Serializable

serialVersionUID:

1000L

Serialized Fields

duty

double duty

refluxIsSet

boolean refluxIsSet

refluxRatio

double refluxRatio

Class neqsim.process.equipment.distillation.ScrubColumn

class ScrubColumn extends DistillationColumn implements Serializable

serialVersionUID:

1004L

Serialized Fields

freezeOutRisk

boolean freezeOutRisk

Whether freeze-out risk was detected in the last run.

freezeOutTemperature

double freezeOutTemperature

Freeze-out temperature of the critical component (K).

heavyKeyComponent

String heavyKeyComponent

Heavy key component name (e.g., "n-pentane").

heavyKeyInOverheadMolFrac

double heavyKeyInOverheadMolFrac

Heavy key mole fraction in overhead after run.

maxHeavyKeyInOverhead

double maxHeavyKeyInOverhead

Maximum allowable mole fraction of heavy key in overhead gas.

minimumBottomsTemperature

double minimumBottomsTemperature

Minimum column bottoms temperature to avoid freeze-out (K).

nglRecovery

double nglRecovery

NGL recovery fraction (moles heavy in bottoms / moles heavy in feed).

Class neqsim.process.equipment.distillation.ShortcutDistillationColumn

class ShortcutDistillationColumn extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

alphaLKHK

double alphaLKHK

Relative volatility of light key to heavy key.

bottomsStream

StreamInterface bottomsStream

Bottoms stream.

condenserDuty

double condenserDuty

Condenser duty in Watts.

condenserPressure

double condenserPressure

Condenser pressure in bara.

distillateStream

StreamInterface distillateStream

Distillate stream.

feedStream

StreamInterface feedStream

Feed stream.

feedTrayNumber

int feedTrayNumber

Optimal feed tray number from top (Kirkbride).

heavyKey

String heavyKey

Heavy key component name.

heavyKeyRecoveryBottoms

double heavyKeyRecoveryBottoms

Recovery of heavy key in bottoms (molar fraction, 0 to 1).

lightKey

String lightKey

Light key component name.

lightKeyRecoveryDistillate

double lightKeyRecoveryDistillate

Recovery of light key in distillate (molar fraction, 0 to 1).

nActual

double nActual

Actual number of theoretical stages (Gilliland).

nMin

double nMin

Minimum number of theoretical stages (Fenske).

rActual

double rActual

Actual reflux ratio.

reboilerDuty

double reboilerDuty

Reboiler duty in Watts.

reboilerPressure

double reboilerPressure

Reboiler pressure in bara (default = feed pressure).

refluxRatioMultiplier

double refluxRatioMultiplier

Reflux ratio multiplier (actual / minimum).

rMin

double rMin

Minimum reflux ratio (Underwood).

solved

boolean solved

Flag indicating if the column has been solved.

Class neqsim.process.equipment.distillation.SimpleTray

class SimpleTray extends Mixer implements Serializable

serialVersionUID:

1000L

Serialized Fields

heatInput

double heatInput

temperature

double temperature

trayPressure

double trayPressure

Tray operating pressure in bara. Negative means use stream pressure.

useReactiveFlash

boolean useReactiveFlash

When true, the tray uses reactive flash (Modified RAND, simultaneous chemical + phase equilibrium) instead of standard VLE flash. Set via DistillationColumn.setReactive(boolean).

Class neqsim.process.equipment.distillation.VLSolidTray

class VLSolidTray extends SimpleTray implements Serializable

serialVersionUID:

1000L

Serialized Fields

heatInput

double heatInput

temperature

double temperature

Package neqsim.process.equipment.distillation.internals

Class neqsim.process.equipment.distillation.internals.ColumnInternalsDesigner

class ColumnInternalsDesigner extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageTrayEfficiency

double averageTrayEfficiency

Overall tray efficiency (O'Connell average).

columnDiameterOverride

double columnDiameterOverride

Column diameter override [m]. If > 0, use this instead of auto-sizing.

controllingTrayIndex

int controllingTrayIndex

Index of the controlling tray (highest loading).

designFloodFraction

double designFloodFraction

Design flooding fraction (0-1).

designOk

boolean designOk

Overall design verdict.

downcommerAreaFraction

double downcommerAreaFraction

Downcomer area fraction (tray columns).

holeAreaFraction

double holeAreaFraction

Hole area fraction (sieve trays).

holeDiameter

double holeDiameter

Hole diameter [mm] (for sieve trays).

internalsType

String internalsType

Internals type: "sieve", "valve", "bubble-cap", or "packed".

maxPercentFlood

double maxPercentFlood

Maximum percent flooding across all trays.

minPercentFlood

double minPercentFlood

Minimum percent flooding across all trays (turndown check).

packedHeight

double packedHeight

Packed bed height [m] (for packed columns).

packingPreset

String packingPreset

Packing preset name (for packed columns).

packingResult

PackingHydraulicsCalculator packingResult

Packing hydraulics result (packed columns only).

requiredDiameter

double requiredDiameter

Required column diameter [m].

structuredPacking

boolean structuredPacking

Whether the packing is structured.

totalPressureDrop

double totalPressureDrop

Total column pressure drop [Pa].

trayResults

List<TrayHydraulicsCalculator> trayResults

Per-tray hydraulics results (tray columns only).

traySpacing

double traySpacing

Tray spacing [m] (for tray columns).

weirHeight

double weirHeight

Weir height [m] (for tray columns).

Class neqsim.process.equipment.distillation.internals.PackingHydraulicsCalculator

class PackingHydraulicsCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualLiquidVelocity

double actualLiquidVelocity

Actual liquid superficial velocity [m/s].

actualVelocity

double actualVelocity

Actual gas superficial velocity [m/s].

columnDiameter

double columnDiameter

Column internal diameter [m].

criticalSurfaceTension

double criticalSurfaceTension

Critical surface tension of packing material [N/m] (for Onda).

designFloodFraction

double designFloodFraction

Design flooding fraction (typically 0.65-0.75 for packed columns).

designOk

boolean designOk

Overall design verdict.

floodingVelocity

double floodingVelocity

Flooding gas velocity [m/s].

fsFactor

double fsFactor

F-factor = u_v * sqrt(rho_v) [Pa^0.5].

hetp

double hetp

HETP — Height Equivalent to a Theoretical Plate [m].

htuG

double htuG

Height of a gas-phase transfer unit [m].

htuL

double htuL

Height of a liquid-phase transfer unit [m].

htuOG

double htuOG

Height of an overall gas-phase transfer unit [m].

kGa

double kGa

Gas-phase mass transfer coefficient [mol/(m2.s.Pa)] or [1/s].

kLa

double kLa

Liquid-phase mass transfer coefficient [m/s].

liquidDensity

double liquidDensity

Liquid density [kg/m3].

liquidDiffusivity

double liquidDiffusivity

Liquid diffusivity [m2/s].

liquidMassFlow

double liquidMassFlow

Liquid mass flow rate [kg/s].

liquidViscosity

double liquidViscosity

Liquid viscosity [Pa.s].

minimumWettingRate

double minimumWettingRate

Minimum liquid wetting rate [m3/(m2.s)].

nominalSize

double nominalSize

Nominal packing size [mm] (for random packing).

numberOfTheoreticalStages

double numberOfTheoreticalStages

Number of theoretical stages in packed height.

packedHeight

double packedHeight

Packed bed height [m].

packingCategory

String packingCategory

Packing category: "random" or "structured".

packingFactor

double packingFactor

Packing factor Fp [m-1] (used in Eckert GPDC correlation).

packingName

String packingName

Packing type name (e.g., "Pall-Ring-50", "Mellapak-250Y").

percentFlood

double percentFlood

Percent of flooding [%].

pressureDropPerMeter

double pressureDropPerMeter

Pressure drop [Pa/m of packing].

specificSurfaceArea

double specificSurfaceArea

Packing specific surface area [m2/m3].

surfaceTension

double surfaceTension

Liquid surface tension [N/m].

totalPressureDrop

double totalPressureDrop

Total pressure drop [Pa].

vaporDensity

double vaporDensity

Vapor density [kg/m3].

vaporDiffusivity

double vaporDiffusivity

Vapor diffusivity [m2/s].

vaporMassFlow

double vaporMassFlow

Vapor mass flow rate [kg/s].

vaporViscosity

double vaporViscosity

Vapor viscosity [Pa.s].

voidFraction

double voidFraction

Packing void fraction (porosity) [-].

wettedArea

double wettedArea

Wetted specific area [m2/m3].

wettingOk

boolean wettingOk

Wetting check: true if liquid rate exceeds minimum.

Class neqsim.process.equipment.distillation.internals.PackingSpecification

class PackingSpecification extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

billetGasConstant

double billetGasConstant

Billet-Schultes gas-side constant.

billetLiquidConstant

double billetLiquidConstant

Billet-Schultes liquid-side constant.

category

String category

Packing category such as random or structured.

criticalSurfaceTension

double criticalSurfaceTension

Critical surface tension in newtons per metre.

material

String material

Packing material such as metal, plastic, or ceramic.

name

String name

Packing display name.

nominalSizeMm

double nominalSizeMm

Nominal packing size in millimetres.

packingFactor

double packingFactor

Packing factor used by GPDC-style hydraulic correlations.

source

String source

Source text for traceability.

specificSurfaceArea

double specificSurfaceArea

Specific surface area in square metres per cubic metre.

voidFraction

double voidFraction

Packing void fraction.

Class neqsim.process.equipment.distillation.internals.TrayHydraulicsCalculator

class TrayHydraulicsCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeArea

double activeArea

Active (bubbling) area [m2].

activeAreaFraction

double activeAreaFraction

Active area as fraction of total column area (1 - 2 * downcomer fraction).

actualVaporVelocity

double actualVaporVelocity

Actual vapor velocity through net area [m/s].

calculatedWeirLength

double calculatedWeirLength

Calculated weir length [m].

columnDiameter

double columnDiameter

Column internal diameter [m].

designFloodFraction

double designFloodFraction

Design flooding fraction (0.70-0.85 typical).

designOk

boolean designOk

Overall design verdict: true if all checks pass.

downcommerArea

double downcommerArea

Downcomer area (one side) [m2].

downcommerAreaFraction

double downcommerAreaFraction

Downcomer area as fraction of total column area.

downcommerBackup

double downcommerBackup

Total downcomer backup [m of clear liquid].

downcommerBackupFraction

double downcommerBackupFraction

Downcomer backup as fraction of tray spacing + weir height.

downcommerBackupOk

boolean downcommerBackupOk

Downcomer backup check: true if backup < 50% of (spacing + weir height).

dryTrayPressureDrop

double dryTrayPressureDrop

Dry tray pressure drop [Pa].

entrainment

double entrainment

Fractional liquid entrainment (mol liquid/mol vapor).

entrainmentOk

boolean entrainmentOk

Entrainment check: true if entrainment < 0.1 (10%).

floodingVelocity

double floodingVelocity

Flooding velocity based on net area [m/s].

fsFactor

double fsFactor

F-factor = u_v * sqrt(rho_v) [Pa^0.5].

holeArea

double holeArea

Hole area [m2] (sieve trays).

holeAreaFraction

double holeAreaFraction

Hole area as fraction of active area (sieve trays: 0.05-0.16, typical 0.10).

holeDiameter

double holeDiameter

Hole diameter [mm] (sieve trays).

liquidDensity

double liquidDensity

Liquid density [kg/m3].

liquidHeadPressureDrop

double liquidHeadPressureDrop

Liquid head on tray [Pa].

liquidMassFlow

double liquidMassFlow

Liquid mass flow rate [kg/s].

liquidViscosity

double liquidViscosity

Liquid viscosity [Pa.s].

minimumVaporVelocity

double minimumVaporVelocity

Minimum vapor velocity before weeping [m/s] (sieve trays).

percentFlood

double percentFlood

Percent of flooding [%].

relativeVolatility

double relativeVolatility

Relative volatility of key components.

residualHeadPressureDrop

double residualHeadPressureDrop

Residual head pressure drop [Pa].

surfaceTension

double surfaceTension

Liquid surface tension [N/m].

totalArea

double totalArea

Total column cross-sectional area [m2].

totalTrayPressureDrop

double totalTrayPressureDrop

Total tray pressure drop [Pa].

trayEfficiency

double trayEfficiency

Tray efficiency (O'Connell).

traySpacing

double traySpacing

Tray spacing [m].

trayType

String trayType

Tray type: "sieve", "valve", or "bubble-cap".

turndownRatio

double turndownRatio

Turndown ratio (min vapor/design vapor).

vaporDensity

double vaporDensity

Vapor density [kg/m3].

vaporMassFlow

double vaporMassFlow

Vapor mass flow rate [kg/s].

weepingOk

boolean weepingOk

Weeping check: true if actual velocity is above minimum.

weirCrest

double weirCrest

Weir loading (crest over weir) [m3/s per m of weir length].

weirHeight

double weirHeight

Weir height [m].

weirLength

double weirLength

Weir length [m]. Set < 0 to auto-calculate as 0.73 * diameter.

Package neqsim.process.equipment.ejector

Class neqsim.process.equipment.ejector.Ejector

class Ejector extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

areaRatio

double areaRatio

Area ratio = mixing area / motive nozzle throat area.

autoSized

boolean autoSized

Flag indicating if ejector has been auto-sized.

compressionRatio

double compressionRatio

Compression ratio = discharge pressure / suction pressure.

criticalBackPressure

double criticalBackPressure

Critical back pressure in bara (max discharge before breakdown).

designCompressionRatio

double designCompressionRatio

Design compression ratio (discharge/suction pressure).

designDiffuserOutletVelocity

double designDiffuserOutletVelocity

designDiffuserVelocityOverride

boolean designDiffuserVelocityOverride

designEntrainmentRatio

double designEntrainmentRatio

Design entrainment ratio (suction/motive mass ratio).

designMotiveFlowRate

double designMotiveFlowRate

Design motive flow rate in kg/s.

designSuctionVelocity

double designSuctionVelocity

designSuctionVelocityOverride

boolean designSuctionVelocityOverride

diffuserEfficiency

double diffuserEfficiency

dischargeConnectionLength

double dischargeConnectionLength

dischargeConnectionLengthOverride

boolean dischargeConnectionLengthOverride

dischargePressure

double dischargePressure

efficiencyIsentropic

double efficiencyIsentropic

ejectorCapacityAnalysisEnabled

boolean ejectorCapacityAnalysisEnabled

Flag for capacity analysis.

ejectorCapacityConstraints

Map<String, CapacityConstraint> ejectorCapacityConstraints

Capacity constraints map.

expansionRatio

double expansionRatio

Expansion ratio = motive pressure / discharge pressure.

maxCriticalBackPressure

double maxCriticalBackPressure

Maximum critical back pressure in bara.

mixedStream

StreamInterface mixedStream

mixingEfficiency

double mixingEfficiency

mixingMach

double mixingMach

Mach number of mixed flow at mixing section.

mixingPressure

double mixingPressure

motiveChoked

boolean motiveChoked

Whether motive flow is choked at nozzle throat.

motiveNozzleMach

double motiveNozzleMach

Mach number at motive nozzle exit.

motiveStream

StreamInterface motiveStream

suctionChoked

boolean suctionChoked

Whether suction flow is choked (Mach >= 1).

suctionConnectionLength

double suctionConnectionLength

suctionConnectionLengthOverride

boolean suctionConnectionLengthOverride

suctionMach

double suctionMach

Mach number of suction flow at mixing section entrance.

suctionNozzleEfficiency

double suctionNozzleEfficiency

suctionStream

StreamInterface suctionStream

Package neqsim.process.equipment.electrolyzer

Class neqsim.process.equipment.electrolyzer.CO2Electrolyzer

class CO2Electrolyzer extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

cellVoltage

double cellVoltage

co2ComponentName

String co2ComponentName

co2Conversion

double co2Conversion

currentEfficiency

double currentEfficiency

electronsPerProduct

Map<String,Double> electronsPerProduct

faradaicEfficiencies

Map<String,Double> faradaicEfficiencies

gasProductStream

Stream gasProductStream

gasSelectivities

Map<String,Double> gasSelectivities

gibbsReactor

GibbsReactor gibbsReactor

inletStream

StreamInterface inletStream

liquidProductStream

Stream liquidProductStream

liquidSelectivities

Map<String,Double> liquidSelectivities

useSelectivityModel

boolean useSelectivityModel

Class neqsim.process.equipment.electrolyzer.Electrolyzer

class Electrolyzer extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

cellVoltage

double cellVoltage

hydrogenOutStream

Stream hydrogenOutStream

oxygenOutStream

Stream oxygenOutStream

waterInlet

StreamInterface waterInlet

Package neqsim.process.equipment.expander

Class neqsim.process.equipment.expander.Expander

class Expander extends Compressor implements Serializable

serialVersionUID:

1000L

Serialized Fields

expanderMechanicalDesign

ExpanderMechanicalDesign expanderMechanicalDesign

Mechanical design for the expander.

Class neqsim.process.equipment.expander.ExpanderOld

class ExpanderOld extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

dH

double dH

pressure

double pressure

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.expander.TurboExpanderCompressor

class TurboExpanderCompressor extends Expander implements Serializable

serialVersionUID:

1001L

Serialized Fields

bearingLossPower

double bearingLossPower

Mechanical bearing loss power [W].

compressorDesignPolytropicEfficiency

double compressorDesignPolytropicEfficiency

Compressor polytropic efficiency (design/actual).

compressorDesignPolytropicHead

double compressorDesignPolytropicHead

Compressor design polytropic head [kJ/kg].

compressorFeedStream

StreamInterface compressorFeedStream

compressorOutletStream

StreamInterface compressorOutletStream

compressorPolytropicEfficiency

double compressorPolytropicEfficiency

compressorPolytropicHead

double compressorPolytropicHead

Compressor actual polytropic head [kJ/kg].

compressorSpeed

double compressorSpeed

currentIGVArea

double currentIGVArea

Current effective IGV area [mm^2].

designExpanderQn

double designExpanderQn

Design Q/N for the expander (flow/speed ratio).

designQn

double designQn

Design Q/N (flow/speed ratio).

designSpeed

double designSpeed

Design speed [rpm].

designUC

double designUC

Design UC (velocity ratio, expander).

expanderDesignIsentropicEfficiency

double expanderDesignIsentropicEfficiency

expanderFeedStream

StreamInterface expanderFeedStream

expanderIsentropicEfficiency

double expanderIsentropicEfficiency

Expander isentropic efficiency (actual, result).

expanderOutletStream

StreamInterface expanderOutletStream

expanderOutPressure

double expanderOutPressure

Expander outlet pressure [bar abs].

expanderSpeed

double expanderSpeed

Matched expander speed [rpm].

gearRatio

double gearRatio

igvAreaIncreaseFactor

double igvAreaIncreaseFactor

Allowable IGV area increase factor (e.g. 1.14 for +14%).

IGVopening

double IGVopening

IGV opening (1.0 = 100% open, fraction of max area).

impellerDiameter

double impellerDiameter

Impeller diameter [m].

lastStageEnthalpyDrop

double lastStageEnthalpyDrop

Last calculated stage isentropic enthalpy drop [J/kg].

maximumIGVArea

double maximumIGVArea

Maximum IGV area [mm^2] for the installed hardware.

powerCompressor

double powerCompressor

Compressor shaft power [W].

powerExpander

double powerExpander

Expander shaft power [W].

Qn

double Qn

Actual Q/N (flow/speed ratio).

qnCurveA

double qnCurveA

QN/efficiency curve fit parameter.

qnCurveH

double qnCurveH

qnCurveK

double qnCurveK

qnEffCurveEffValues

double[] qnEffCurveEffValues

qnEffCurveQnValues

double[] qnEffCurveQnValues

qnHeadCurveA

double qnHeadCurveA

QN/head curve fit parameter.

qnHeadCurveH

double qnHeadCurveH

qnHeadCurveHeadValues

double[] qnHeadCurveHeadValues

qnHeadCurveK

double qnHeadCurveK

qnHeadCurveQnValues

double[] qnHeadCurveQnValues

QNratiocompressor

double QNratiocompressor

QN ratio for compressor (actual/ideal).

QNratioexpander

double QNratioexpander

QN ratio for expander (actual/ideal).

ucCurveA

double ucCurveA

UC/efficiency curve fit parameter.

ucCurveH

double ucCurveH

ucCurveK

double ucCurveK

UCratiocompressor

double UCratiocompressor

UC ratio for compressor (actual/ideal).

UCratioexpander

double UCratioexpander

UC ratio for expander (actual/ideal).

usingExpandedIGVArea

boolean usingExpandedIGVArea

Flag indicating whether the enlarged IGV area is being used.

Package neqsim.process.equipment.failure

Class neqsim.process.equipment.failure.EquipmentFailureMode

class EquipmentFailureMode extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoRecoverable

boolean autoRecoverable

Whether the failure can be recovered automatically.

autoRecoveryTime

double autoRecoveryTime

Time in seconds before auto-recovery (if autoRecoverable).

capacityFactor

double capacityFactor

Capacity factor when failed (0.0 = complete loss, 0.5 = 50% capacity, 1.0 = no effect).

description

String description

Description of the failure mode.

efficiencyFactor

double efficiencyFactor

Efficiency factor when failed (multiplier on normal efficiency).

failureFrequency

double failureFrequency

Failure frequency per year.

mttr

double mttr

Mean Time To Repair in hours.

name

String name

Name of the failure mode.

requiresImmediateAction

boolean requiresImmediateAction

Whether the failure requires immediate plant action.

type

EquipmentFailureMode.FailureType type

Type of failure.

Class neqsim.process.equipment.failure.ReliabilityDataSource

class ReliabilityDataSource extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dataLoaded

boolean dataLoaded

Flag indicating if data is loaded.

failureModes

Map<String, List<ReliabilityDataSource.FailureModeData>> failureModes

Failure mode data.

reliabilityData

Map<String, ReliabilityDataSource.ReliabilityData> reliabilityData

Equipment reliability data.

Class neqsim.process.equipment.failure.ReliabilityDataSource.FailureModeData

class FailureModeData extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

description

String description

detectability

String detectability

equipmentType

String equipmentType

failureMode

String failureMode

probability

double probability

severity

String severity

subType

String subType

typicalMttr

double typicalMttr

Class neqsim.process.equipment.failure.ReliabilityDataSource.ReliabilityData

class ReliabilityData extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

availability

double availability

equipmentType

String equipmentType

failureRate

double failureRate

mtbf

double mtbf

mttr

double mttr

notes

String notes

source

String source

subType

String subType

Package neqsim.process.equipment.filter

Class neqsim.process.equipment.filter.CharCoalFilter

class CharCoalFilter extends Filter implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.filter.Filter

class Filter extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

Cv

double Cv

deltaP

double deltaP

Class neqsim.process.equipment.filter.SulfurFilter

class SulfurFilter extends Filter implements Serializable

serialVersionUID:

1001L

Serialized Fields

filterElementCapacity

double filterElementCapacity

Filter element capacity in kg of S8 before replacement required.

filterType

String filterType

Filter type description.

filtrationRating

double filtrationRating

Design filtration rating in micrometres. Default 10.

gasFlowRate

double gasFlowRate

Mass flow rate of gas through the filter (kg/hr).

numberOfElements

int numberOfElements

Number of filter elements installed in parallel. Default 6.

removalEfficiency

double removalEfficiency

Removal efficiency for solid S8 particles (0 to 1). Default 0.99 (99%).

residenceTime

double residenceTime

Residence time in the supersaturated zone (seconds). Used for particle size prediction. Default 2.0 s (typical valve-to-filter transit at 5-10 m/s over 10-20 m pipe).

solidS8Detected

boolean solidS8Detected

Whether solid S8 was detected in the inlet stream.

solidS8MassFractionInlet

double solidS8MassFractionInlet

Total S8 mass fraction in inlet gas that is in solid phase.

solidSulfurRemovalRate

double solidSulfurRemovalRate

Solid S8 removal rate calculated during run (kg/hr).

sulfurFilterMechanicalDesign

SulfurFilterMechanicalDesign sulfurFilterMechanicalDesign

Mechanical design for this filter.

supersaturationRatio

double supersaturationRatio

Supersaturation ratio of S8 at inlet conditions. Calculated from flash results or settable.

Package neqsim.process.equipment.flare

Class neqsim.process.equipment.flare.Flare

class Flare extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2Emission

double co2Emission

cumulativeCO2EmissionKg

double cumulativeCO2EmissionKg

cumulativeGasBurnedKg

double cumulativeGasBurnedKg

cumulativeHeatReleasedGJ

double cumulativeHeatReleasedGJ

designHeatDutyCapacityW

double designHeatDutyCapacityW

designMassFlowCapacityKgS

double designMassFlowCapacityKgS

designMolarFlowCapacityMoleS

double designMolarFlowCapacityMoleS

flameHeight

double flameHeight

heatDuty

double heatDuty

lastTransientTime

double lastTransientTime

radiantFraction

double radiantFraction

tipDiameter

double tipDiameter

Class neqsim.process.equipment.flare.Flare.CapacityCheckResult

class CapacityCheckResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

designHeatDutyW

double designHeatDutyW

designMassRateKgS

double designMassRateKgS

designMolarRateMoleS

double designMolarRateMoleS

heatDutyW

double heatDutyW

heatUtilization

double heatUtilization

massRateKgS

double massRateKgS

massUtilization

double massUtilization

molarRateMoleS

double molarRateMoleS

molarUtilization

double molarUtilization

Class neqsim.process.equipment.flare.FlareStack

class FlareStack extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1L

Serialized Fields

airAssist

StreamInterface airAssist

airAssistMassKgPerSec

double airAssistMassKgPerSec

ambientPressBar

double ambientPressBar

ambientTempK

double ambientTempK

burningEfficiency

double burningEfficiency

ch_epA

double ch_epA

ch_epC_kWm2

double ch_epC_kWm2

ch_kAtten

double ch_kAtten

ch_kTilt

double ch_kTilt

ch_lfA

double ch_lfA

ch_lfB

double ch_lfB

ch_lfC

double ch_lfC

ch_lineSegments

int ch_lineSegments

coFraction

double coFraction

emissionsKgPerHr

Map<String,Double> emissionsKgPerHr

emissionsMassKgPerSec

double emissionsMassKgPerSec

excessAirFrac

double excessAirFrac

heatReleaseMW

double heatReleaseMW

inletMassKgPerSec

double inletMassKgPerSec

oxygenConsumedKmolPerSec

double oxygenConsumedKmolPerSec

radiantFraction

double radiantFraction

radiationModel

FlareStack.RadiationModel radiationModel

reliefInlet

StreamInterface reliefInlet

so2Conversion

double so2Conversion

steamAssist

StreamInterface steamAssist

steamAssistMassKgPerSec

double steamAssistMassKgPerSec

tipBackpressureBar

double tipBackpressureBar

tipDiameter_m

double tipDiameter_m

tipElevation_m

double tipElevation_m

tipLossK

double tipLossK

unburnedTHCFraction

double unburnedTHCFraction

windSpeed10m

double windSpeed10m

Package neqsim.process.equipment.flare.dto

Class neqsim.process.equipment.flare.dto.FlareCapacityDTO

class FlareCapacityDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

designHeatDutyW

double designHeatDutyW

designMassRateKgS

double designMassRateKgS

designMolarRateMoleS

double designMolarRateMoleS

heatDutyW

double heatDutyW

heatUtilization

double heatUtilization

massRateKgS

double massRateKgS

massUtilization

double massUtilization

molarRateMoleS

double molarRateMoleS

molarUtilization

double molarUtilization

overloaded

boolean overloaded

Class neqsim.process.equipment.flare.dto.FlareDispersionSurrogateDTO

class FlareDispersionSurrogateDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

exitVelocityMs

double exitVelocityMs

massRateKgS

double massRateKgS

molarRateMoleS

double molarRateMoleS

momentumFlux

double momentumFlux

momentumPerMass

double momentumPerMass

standardVolumeSm3PerSec

double standardVolumeSm3PerSec

Class neqsim.process.equipment.flare.dto.FlarePerformanceDTO

class FlarePerformanceDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

capacity

FlareCapacityDTO capacity

co2EmissionKgS

double co2EmissionKgS

dispersion

FlareDispersionSurrogateDTO dispersion

distanceTo4kWm2

double distanceTo4kWm2

emissions

Map<String,Double> emissions

heatDutyW

double heatDutyW

heatFluxAt30mWm2

double heatFluxAt30mWm2

label

String label

massRateKgS

double massRateKgS

molarRateMoleS

double molarRateMoleS

Package neqsim.process.equipment.heatexchanger

Class neqsim.process.equipment.heatexchanger.AirCooler

class AirCooler extends Cooler implements Serializable

serialVersionUID:

1000L

Serialized Fields

airFoulingResistance

double airFoulingResistance

Air-side fouling resistance [m2-K/W]. Default 0 (clean fins).

airInletTemperature

double airInletTemperature

Air inlet temperature [K].

airMassFlow

double airMassFlow

Air mass flow (dry basis) [kg/s].

airOutletTemperature

double airOutletTemperature

Air outlet temperature [K].

airSideHTC

double airSideHTC

Air-side heat transfer coefficient (bare tube basis) [W/m2-K].

airSidePressureDrop

double airSidePressureDrop

Air-side pressure drop [Pa].

airVolumeFlow

double airVolumeFlow

Air volume flow at inlet [m3/s].

ambientCorrectionFactor

double ambientCorrectionFactor

Ambient correction factor (duty ratio at different ambient T vs design T).

atmosphericPressure

double atmosphericPressure

Atmospheric pressure [Pa].

bareTubeArea

double bareTubeArea

Bare tube area [m2].

bayWidth

double bayWidth

Bay width [m]. Default 3.05 m (10 ft).

designAmbientTemperature

double designAmbientTemperature

Design ambient temperature [K] (for ITD-based correction).

faceArea

double faceArea

Bundle face area [m2].

faceVelocity

double faceVelocity

Unit face velocity [m/s].

fanCurveA0

double fanCurveA0

Fan curve coefficients: dP = a0 + a1*Q + a2*Q^2 + a3*Q^3, Q in m3/s, dP in Pa.

fanCurveA1

double fanCurveA1

Fan curve coefficient a1.

fanCurveA2

double fanCurveA2

Fan curve coefficient a2.

fanCurveA3

double fanCurveA3

Fan curve coefficient a3.

fanCurveActive

boolean fanCurveActive

Whether a user-defined fan curve is active.

fanDiameter

double fanDiameter

Fan diameter [m]. Default 4.27 m (14 ft).

fanEfficiency

double fanEfficiency

Fan total efficiency (fan + belt + motor). Default 0.55.

fanPower

double fanPower

Fan power (total, all fans) [W].

finConductivity

double finConductivity

Fin thermal conductivity [W/m-K]. Default 200 for aluminium.

finEfficiency

double finEfficiency

Fin efficiency [-].

finHeight

double finHeight

Fin height [m]. Default 15.875 mm (5/8 inch).

finPitch

double finPitch

Fin pitch [m]. Default 2.5 mm (394 fpm).

finThickness

double finThickness

Fin thickness [m]. Default 0.4 mm (aluminium).

itd

double itd

Initial temperature difference (ITD = T_process_in - T_air_in) [K].

lmtd

double lmtd

Log-mean temperature difference [K].

lmtdCorrectionFactor

double lmtdCorrectionFactor

LMTD correction factor for cross-flow (F). Default 0.9.

numberOfBays

int numberOfBays

Number of bays. Default 1, can be auto-sized.

numberOfFansPerBay

int numberOfFansPerBay

Number of fans per bay. Default 2.

numberOfTubePasses

int numberOfTubePasses

Number of tube passes. Default 2.

numberOfTubeRows

int numberOfTubeRows

Number of tube rows. Default 4 per API 661 typical.

overallU

double overallU

Overall heat transfer coefficient (bare tube basis) [W/m2-K].

processFoulingResistance

double processFoulingResistance

Process-side fouling resistance [m2-K/W]. Default 1.76e-4 (API 661 typical).

processSideHTC

double processSideHTC

Process-side heat transfer coefficient [W/m2-K].

relativeHumidity

double relativeHumidity

Relative humidity fraction [0-1].

requiredArea

double requiredArea

Required bare-tube area [m2].

totalFinArea

double totalFinArea

Total fin area [m2].

totalTubes

int totalTubes

Total number of tubes.

transversePitch

double transversePitch

Transverse tube pitch [m]. Default 60.3 mm (2-3/8 inch).

tubeLength

double tubeLength

Tube length (one bay) [m]. Default 12 m (40 ft standard).

tubeOuterDiameter

double tubeOuterDiameter

Tube outside diameter [m]. Default 25.4 mm (1 inch) per API 661.

tubesPerRow

int tubesPerRow

Calculated number of tubes per row.

tubeWallThickness

double tubeWallThickness

Tube wall thickness [m]. Default 2.11 mm (BWG 14).

Class neqsim.process.equipment.heatexchanger.Cooler

class Cooler extends Heater implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.heatexchanger.CoolingWaterSystem

class CoolingWaterSystem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualOperatingCostDollars

double annualOperatingCostDollars

annualOperatingHours

double annualOperatingHours

Annual operating hours (default 8000).

calculated

boolean calculated

cwReturnTemperatureC

double cwReturnTemperatureC

CW return temperature in C (default 35 C).

cwSupplyTemperatureC

double cwSupplyTemperatureC

CW supply temperature in C (default 25 C).

electricityCost

double electricityCost

Electricity cost in $/kWh (default 0.10).

pumpEfficiency

double pumpEfficiency

CW pump efficiency (default 0.75).

pumpPowerKW

double pumpPowerKW

requirements

List<CoolingWaterSystem.CoolingRequirement> requirements

Cooling requirements.

systemPressureDrop

double systemPressureDrop

CW system pressure drop in bar (default 3 bar).

totalCWFlowRateM3PerHr

double totalCWFlowRateM3PerHr

totalDutyKW

double totalDutyKW

totalElectricalPowerKW

double totalElectricalPowerKW

towerFanPowerFraction

double towerFanPowerFraction

Cooling tower fan power as fraction of duty (default 0.01 = 1%).

towerFanPowerKW

double towerFanPowerKW

Class neqsim.process.equipment.heatexchanger.CoolingWaterSystem.CoolingRequirement

class CoolingRequirement extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

approachDeltaTC

double approachDeltaTC

Minimum approach temperature in C.

dutyKW

double dutyKW

Required cooling duty in kW.

name

String name

Cooler name.

processOutletTempC

double processOutletTempC

Process outlet temperature in C.

Class neqsim.process.equipment.heatexchanger.Dryer

class Dryer extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

driedProductStream

StreamInterface driedProductStream

Dried product outlet stream.

dryerType

String dryerType

Type of dryer: "drum", "spray", "flash", "rotary".

heatDuty

double heatDuty

Heat duty for drying in Watts.

heatingTemperature

double heatingTemperature

Heating medium temperature (steam) in Kelvin.

heatTransferArea

double heatTransferArea

Heat transfer area in m2.

inletStream

StreamInterface inletStream

Inlet wet feed stream.

outletTemperature

double outletTemperature

Outlet temperature of the dried product in Kelvin.

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

Overall heat transfer coefficient in W/(m2*K).

pressureDrop

double pressureDrop

Pressure drop in bar.

specificEnergy

double specificEnergy

Specific energy consumption in kWh per kg water evaporated.

targetMoistureContent

double targetMoistureContent

Target moisture content (mass fraction) in dried product.

thermalEfficiency

double thermalEfficiency

Thermal efficiency (fraction of heat input used for evaporation).

vaporStream

StreamInterface vaporStream

Vapor (moisture) outlet stream.

Class neqsim.process.equipment.heatexchanger.FiredHeater

class FiredHeater extends Heater implements Serializable

serialVersionUID:

1000L

Serialized Fields

absorbedDuty

double absorbedDuty

co2EmissionsKgPerSec

double co2EmissionsKgPerSec

firedDuty

double firedDuty

fuelCO2Factor

double fuelCO2Factor

CO2 emission factor in kg CO2 per kg fuel. Default 2.75 (natural gas).

fuelConsumptionKgPerSec

double fuelConsumptionKgPerSec

fuelLHV

double fuelLHV

Fuel lower heating value in J/kg. Default 48 MJ/kg (natural gas).

noxEmissionsKgPerSec

double noxEmissionsKgPerSec

noxFactor

double noxFactor

NOx emission factor in kg NOx per GJ fired duty. Default 0.08.

stackLoss

double stackLoss

stackTemperature

double stackTemperature

Stack temperature in K. Default 423.15 K (150 C).

thermalEfficiency

double thermalEfficiency

Thermal efficiency (fraction, 0.0 to 1.0). Default 0.85.

Class neqsim.process.equipment.heatexchanger.Heater

class Heater extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Flag indicating if heater has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

coolingMediumTemperature

double coolingMediumTemperature

dT

double dT

electricalDesign

HeatExchangerElectricalDesign electricalDesign

energyInput

double energyInput

instrumentDesign

HeatExchangerInstrumentDesign instrumentDesign

lastComposition

double[] lastComposition

lastDuty

double lastDuty

lastFlowRate

double lastFlowRate

lastOutPressure

double lastOutPressure

lastOutTemperature

double lastOutTemperature

lastPressure

double lastPressure

lastPressureDrop

double lastPressureDrop

lastTemperature

double lastTemperature

maxOutletTemperatureLimit

double maxOutletTemperatureLimit

Maximum outlet temperature limit in Kelvin. Double.MAX_VALUE means no limit.

minOutletTemperatureLimit

double minOutletTemperatureLimit

Minimum outlet temperature limit in Kelvin. 0.0 means no limit.

pressureDrop

double pressureDrop

pressureOut

double pressureOut

pressureUnit

String pressureUnit

setEnergyInput

boolean setEnergyInput

setOutPressure

boolean setOutPressure

setTemperature

boolean setTemperature

system

SystemInterface system

temperatureLimitUnit

String temperatureLimitUnit

Unit for temperature limits (for display/reporting purposes).

temperatureOut

double temperatureOut

temperatureUnit

String temperatureUnit

utilitySpecification

UtilityStreamSpecification utilitySpecification

Class neqsim.process.equipment.heatexchanger.HeatExchanger

class HeatExchanger extends Heater implements Serializable

serialVersionUID:

1000L

Serialized Fields

deltaT

double deltaT

designDuty

double designDuty

Design duty in Watts for capacity constraint.

designMode

HeatExchanger.DesignMode designMode

Design mode: SIZING (default, uses user-supplied UA) or RATING (calculates UA).

designUAValue

double designUAValue

Design UA value in W/K for capacity constraint.

dH

double dH

dT

double dT

duty

double duty

dynamicModelEnabled

boolean dynamicModelEnabled

Whether the dynamic heat exchanger model is enabled.

firstTime

boolean firstTime

flowArrangement

String flowArrangement

guessOutTemperature

double guessOutTemperature

guessOutTemperatureUnit

String guessOutTemperatureUnit

heatTransferArea

double heatTransferArea

Heat transfer area in m2 (for dynamic model).

hotColdDutyBalance

double hotColdDutyBalance

hxAutoSized

boolean hxAutoSized

Internal auto-sized flag for heat exchanger.

hxCapacityAnalysisEnabled

boolean hxCapacityAnalysisEnabled

Flag for HX-specific capacity analysis.

hxCapacityConstraints

Map<String, CapacityConstraint> hxCapacityConstraints

Capacity constraints map.

inStream

StreamInterface[] inStream

lastInStream2Composition

double[] lastInStream2Composition

Cached inlet stream 2 composition for needRecalculation check.

lastInStream2FlowRate

double lastInStream2FlowRate

Cached inlet stream 2 flow rate for needRecalculation check.

lastInStream2Pressure

double lastInStream2Pressure

Cached inlet stream 2 pressure for needRecalculation check.

lastInStream2Temperature

double lastInStream2Temperature

Cached inlet stream 2 temperature for needRecalculation check.

lastUAvalue

double lastUAvalue

Cached UA value for needRecalculation check.

maxShellPressureDrop

double maxShellPressureDrop

Maximum shell-side pressure drop in bar.

maxTubePressureDrop

double maxTubePressureDrop

Maximum tube-side pressure drop in bar.

minApproachTemperature

double minApproachTemperature

Minimum approach temperature in K.

NTU

double NTU

outStream

StreamInterface[] outStream

outStreamSpecificationNumber

int outStreamSpecificationNumber

ratingArea

double ratingArea

Heat transfer area used in rating mode (m2).

ratingU

double ratingU

Calculated overall U value from rating mode (W/(m2*K)).

setTemperature

boolean setTemperature

shellFluidTemperature

double shellFluidTemperature

Shell-side fluid temperature in K — state variable for fluid accumulation model.

shellHoldupVolume

double shellHoldupVolume

Shell-side fluid holdup volume in m3.

shellPasses

int shellPasses

Number of shell passes for LMTD correction (1 = TEMA E, 2 = TEMA F).

shellSideHtc

double shellSideHtc

Shell-side heat transfer coefficient in W/(m2*K).

system

SystemInterface system

temperatureOut

double temperatureOut

thermalEffectiveness

double thermalEffectiveness

tubeFluidTemperature

double tubeFluidTemperature

Tube-side fluid temperature in K — state variable for fluid accumulation model.

tubeHoldupVolume

double tubeHoldupVolume

Tube-side fluid holdup volume in m3.

tubeSideHtc

double tubeSideHtc

Tube-side heat transfer coefficient in W/(m2*K).

UAvalue

double UAvalue

useDeltaT

boolean useDeltaT

wallCp

double wallCp

Metal wall specific heat capacity in J/(kg*K).

wallMass

double wallMass

Metal wall mass in kg.

wallTemperature

double wallTemperature

Metal wall temperature in Kelvin — state variable for dynamic simulation.

Class neqsim.process.equipment.heatexchanger.LNGHeatExchanger

class LNGHeatExchanger extends MultiStreamHeatExchanger2 implements Serializable

serialVersionUID:

1004L

Serialized Fields

adaptiveRefinement

boolean adaptiveRefinement

Whether to enable adaptive zone refinement (P4).

adaptiveThresholdFactor

double adaptiveThresholdFactor

Enthalpy gradient threshold for adaptive refinement (P4).

coldCompositeCurve

double[][] coldCompositeCurve

Cold composite curve [nPoints][2]: col 0 = cumulative duty (kW), col 1 = temp (deg C).

computedStreamDP

double[] computedStreamDP

Per-stream detailed pressure drop from correlations in bar (P5/P6).

coreGeometry

LNGHeatExchanger.CoreGeometry coreGeometry

Core geometry for sizing (P8).

coreThermalMassKJK

double coreThermalMassKJK

Core thermal mass in kJ/K for transient model (P7).

exchangerType

String exchangerType

Exchanger type description.

exergyDestructionPerZone

double[] exergyDestructionPerZone

Per-zone exergy destruction (kW).

flowMaldistributionFactor

double flowMaldistributionFactor

Flow maldistribution factor applied to MITA (P10). 1.0 = ideal.

freezeOutRiskPerZone

boolean[] freezeOutRiskPerZone

Per-zone CO2 freeze-out risk flag (P9).

hotCompositeCurve

double[][] hotCompositeCurve

Hot composite curve [nPoints][2]: col 0 = cumulative duty (kW), col 1 = temp (deg C).

maxAdaptiveZones

int maxAdaptiveZones

Maximum zones after adaptive refinement (P4).

maxAllowableThermalGradient

double maxAllowableThermalGradient

Maximum allowable thermal gradient in deg C per meter (thermal stress).

mercuryRiskMessage

String mercuryRiskMessage

Mercury risk detail message.

mercuryRiskPresent

boolean mercuryRiskPresent

Mercury risk assessment result.

minimumInternalTemperatureApproach

double minimumInternalTemperatureApproach

Minimum internal temperature approach across all zones (deg C).

mitaPerZone

double[] mitaPerZone

Per-zone minimum temperature approach (deg C).

mitaZoneIndex

int mitaZoneIndex

Zone index (0-based from cold end) where MITA occurs.

numberOfZones

int numberOfZones

Number of axial zones for discretisation.

pendingIsHot

List<Boolean> pendingIsHot

Manual hot/cold hints for pending streams (before registration).

referenceTemperatureK

double referenceTemperatureK

Reference temperature for exergy calculations (K).

registeredIsHot

List<Boolean> registeredIsHot

Whether each registered stream is hot (true) or cold (false).

secondLawEfficiency

double secondLawEfficiency

Second-law (exergetic) efficiency, dimensionless 0–1.

streamCount

int streamCount

Number of registered streams (tracked because parent has no accessor).

streamFFactor

double[] streamFFactor

Per-stream f-factor results (P5).

streamFinGeometry

List<LNGHeatExchanger.FinGeometry> streamFinGeometry

Fin geometry per stream (P5), null entries use no fin correlation.

streamJFactor

double[] streamJFactor

Per-stream j-factor results (P5).

streamPressureDrops

List<Double> streamPressureDrops

Pressure drop per registered stream (bar). Zero means isobaric.

thermalGradientPerZone

double[] thermalGradientPerZone

Per-zone thermal gradient in deg C per metre (thermal stress).

thermalStressWarning

boolean thermalStressWarning

Whether any thermal-stress warning was triggered.

totalExergyDestruction

double totalExergyDestruction

Total exergy destruction across all zones (kW).

transientResults

List<LNGHeatExchanger.TransientPoint> transientResults

Cool-down transient results (P7).

uaPerZone

double[] uaPerZone

Per-zone UA values (W/K).

zoneTempProfileColdC

double[] zoneTempProfileColdC

Per-zone temperature in deg C for freeze-out assessment - cold side (P9).

zoneTempProfileHotC

double[] zoneTempProfileHotC

Per-zone temperature in deg C for freeze-out assessment (P9).

Class neqsim.process.equipment.heatexchanger.LNGHeatExchanger.CoreGeometry

class CoreGeometry extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

height

double height

Core height (stack-up) in metres.

length

double length

Core length in metres (flow direction).

numberOfLayers

int numberOfLayers

Number of layers per stream.

weight

double weight

Core weight in kg.

width

double width

Core width in metres (perpendicular to flow, header direction).

Class neqsim.process.equipment.heatexchanger.LNGHeatExchanger.FinGeometry

class FinGeometry extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

finConductivity

double finConductivity

Fin thermal conductivity in W/(m K) — aluminium default.

finHeight

double finHeight

Fin height in metres.

finPitch

double finPitch

Fin pitch (centre-to-centre spacing) in metres.

finThickness

double finThickness

Fin thickness in metres.

plateThickness

double plateThickness

Plate (parting sheet) thickness in metres.

stripLength

double stripLength

Offset strip length in metres (for offset-strip fins).

type

String type

Fin type.

Class neqsim.process.equipment.heatexchanger.LNGHeatExchanger.TransientPoint

class TransientPoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

dutyKW

double dutyKW

Instantaneous duty in kW.

fluidOutTempC

double fluidOutTempC

Fluid outlet temperature in deg C.

metalTempC

double metalTempC

Average metal temperature in deg C.

timeHours

double timeHours

Time in hours.

Class neqsim.process.equipment.heatexchanger.MultiEffectEvaporator

class MultiEffectEvaporator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

concentrateStream

StreamInterface concentrateStream

Concentrated liquid outlet stream.

effectPressures

List<Double> effectPressures

Pressures for each effect (calculated from first/last).

firstEffectPressure

double firstEffectPressure

Pressure of the first (highest pressure) effect in bara.

inletStream

StreamInterface inletStream

Inlet feed stream.

lastEffectPressure

double lastEffectPressure

Pressure of the last (lowest pressure) effect in bara.

numberOfEffects

int numberOfEffects

Number of evaporator effects.

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

Overall heat transfer coefficient in W/(m2*K).

steamConsumption

double steamConsumption

Total steam consumption in kg/hr (calculated).

steamEconomy

double steamEconomy

Steam economy (kg water evaporated / kg steam used).

targetConcentrationFactor

double targetConcentrationFactor

Target concentration factor (ratio of feed to concentrate flow).

totalHeatTransferArea

double totalHeatTransferArea

Total heat transfer area in m2 (calculated).

vaporCondensateStream

StreamInterface vaporCondensateStream

Combined vapor/condensate outlet stream.

Class neqsim.process.equipment.heatexchanger.MultiStreamHeatExchanger

class MultiStreamHeatExchanger extends Heater implements Serializable

serialVersionUID:

1001L

Serialized Fields

deltaT

double deltaT

dT

double dT

duty

double duty

firstTime

boolean firstTime

flowArrangement

String flowArrangement

guessOutTemperature

double guessOutTemperature

guessOutTemperatureUnit

String guessOutTemperatureUnit

hotColdDutyBalance

double hotColdDutyBalance

inStreams

List<StreamInterface> inStreams

iterations

int iterations

MAX_ITERATIONS

int MAX_ITERATIONS

NTU

double NTU

outStreams

List<StreamInterface> outStreams

outStreamSpecificationNumber

int outStreamSpecificationNumber

setTemperature

boolean setTemperature

system

SystemInterface system

temperatureApproach

double temperatureApproach

temperatureOut

double temperatureOut

thermalEffectiveness

double thermalEffectiveness

UAvalue

double UAvalue

UAvalueIsSet

boolean UAvalueIsSet

useDeltaT

boolean useDeltaT

Class neqsim.process.equipment.heatexchanger.MultiStreamHeatExchanger2

class MultiStreamHeatExchanger2 extends Heater implements Serializable

serialVersionUID:

1000L

Serialized Fields

allLoad

List<Double> allLoad

approachTemperature

Double approachTemperature

coldLoad

double coldLoad

coldTempAll

List<Double> coldTempAll

compositeCurvePoints

Map<String, List<Map<String,Object>>> compositeCurvePoints

damping

double damping

extremeAttempts

int extremeAttempts

extremeEnergy

double extremeEnergy

extremeUA

double extremeUA

fluidInlet

List<SystemInterface> fluidInlet

hInlet

List<Double> hInlet

hotLoad

double hotLoad

hotTempAll

List<Double> hotTempAll

inletTemps

List<Double> inletTemps

inStreams

List<StreamInterface> inStreams

jacobiDelta

double jacobiDelta

localRange

double localRange

massFlows

List<Double> massFlows

maxIterations

int maxIterations

outletTemps

List<Double> outletTemps

outStreams

List<StreamInterface> outStreams

pressures

List<Double> pressures

prevOutletTemps

List<Double> prevOutletTemps

stallCounter

int stallCounter

stallLimit

int stallLimit

streamLoads

List<Double> streamLoads

streamTypes

List<String> streamTypes

tempDiff

List<Double> tempDiff

thermoSystem

SystemInterface thermoSystem

tolerance

double tolerance

UA

Double UA

unknownOutlets

List<Object> unknownOutlets

Class neqsim.process.equipment.heatexchanger.NeqHeater

class NeqHeater extends Heater implements Serializable

serialVersionUID:

1000L

Serialized Fields

dH

double dH

system

SystemInterface system

Class neqsim.process.equipment.heatexchanger.ReBoiler

class ReBoiler extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

reboilerDuty

double reboilerDuty

setTemperature

boolean setTemperature

system

SystemInterface system

Class neqsim.process.equipment.heatexchanger.SteamHeater

class SteamHeater extends Heater implements Serializable

serialVersionUID:

1000L

Serialized Fields

steamFlowRate

double steamFlowRate

steamInletTemperature

double steamInletTemperature

steamOutletTemperature

double steamOutletTemperature

steamPressure

double steamPressure

Class neqsim.process.equipment.heatexchanger.UtilityStreamSpecification

class UtilityStreamSpecification extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

approachTemperature

double approachTemperature

heatCapacityRate

double heatCapacityRate

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

returnTemperature

double returnTemperature

supplyTemperature

double supplyTemperature

Class neqsim.process.equipment.heatexchanger.WaterCooler

class WaterCooler extends Cooler implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingWaterFlowRate

double coolingWaterFlowRate

waterInletTemperature

double waterInletTemperature

waterOutletTemperature

double waterOutletTemperature

waterPressure

double waterPressure

Package neqsim.process.equipment.heatexchanger.heatintegration

Class neqsim.process.equipment.heatexchanger.heatintegration.HeatStream

class HeatStream extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

heatCapacityFlowRate

double heatCapacityFlowRate

name

String name

supplyTemperature

double supplyTemperature

targetTemperature

double targetTemperature

type

HeatStream.StreamType type

Class neqsim.process.equipment.heatexchanger.heatintegration.PinchAnalysis

class PinchAnalysis extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coldCompositeQ

double[] coldCompositeQ

coldCompositeT

double[] coldCompositeT

coldStreams

List<HeatStream> coldStreams

deltaTmin

double deltaTmin

grandCompositeQ

double[] grandCompositeQ

grandCompositeT

double[] grandCompositeT

hasRun

boolean hasRun

hotCompositeQ

double[] hotCompositeQ

hotCompositeT

double[] hotCompositeT

hotStreams

List<HeatStream> hotStreams

minimumCoolingUtility

double minimumCoolingUtility

minimumHeatingUtility

double minimumHeatingUtility

pinchTemperatureCold

double pinchTemperatureCold

pinchTemperatureHot

double pinchTemperatureHot

Package neqsim.process.equipment.iec81346

Class neqsim.process.equipment.iec81346.ReferenceDesignation

class ReferenceDesignation extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

functionDesignation

String functionDesignation

The function aspect designation without prefix (e.g. "A1.K1").

letterCode

IEC81346LetterCode letterCode

The IEC 81346-2 letter code classifying this equipment.

locationDesignation

String locationDesignation

The location aspect designation without prefix (e.g. "P1.M1").

productDesignation

String productDesignation

The product aspect designation without prefix (e.g. "B1").

sequenceNumber

int sequenceNumber

The sequence number within the letter code category.

Class neqsim.process.equipment.iec81346.ReferenceDesignationGenerator

class ReferenceDesignationGenerator extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

entries

List<ReferenceDesignationGenerator.DesignationEntry> entries

The generated designation entries, in order.

functionPrefix

String functionPrefix

User-defined function prefix (without =), e.g. "A1".

generated

boolean generated

Whether generation has been run.

includeMeasurementDevices

boolean includeMeasurementDevices

Whether to assign designations to measurement devices.

includeStreams

boolean includeStreams

Whether to assign designations to stream objects.

locationPrefix

String locationPrefix

User-defined location prefix (without +), e.g. "P1.M1".

processModel

ProcessModel processModel

The multi-area process model to generate designations for (null if single-area).

processSystem

ProcessSystem processSystem

The single process system to generate designations for (null if multi-area).

useHierarchicalFunctions

boolean useHierarchicalFunctions

Whether to use hierarchical function designations in multi-area models. When true, each area function prefix is formed by appending to the top-level function prefix with a dot separator (e.g. "A1.A1", "A1.A2"). When false (default), areas use flat numbering ("A1", "A2").

Class neqsim.process.equipment.iec81346.ReferenceDesignationGenerator.DesignationEntry

class DesignationEntry extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

equipmentName

String equipmentName

The original equipment name in NeqSim.

equipmentType

String equipmentType

The simple class name of the equipment (e.g. "Separator", "Compressor").

functionArea

String functionArea

The function area identifier (e.g. "A1", "A2").

letterCode

IEC81346LetterCode letterCode

The IEC 81346-2 letter code.

referenceDesignation

String referenceDesignation

The full IEC 81346 reference designation string.

sequenceNumber

int sequenceNumber

The sequence number within the letter code category.

Package neqsim.process.equipment.lng

Class neqsim.process.equipment.lng.LNGAgeingResult

class LNGAgeingResult extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature at this time step (K).

bogMassFlowRate

double bogMassFlowRate

BOG mass flow rate (kg/hr).

boilOffRatePctPerDay

double boilOffRatePctPerDay

Boil-off rate (%/day of LNG mass).

density

double density

LNG liquid density per ISO 6578 (kg/m3).

gcvMass

double gcvMass

Gross Calorific Value — mass basis (MJ/kg).

gcvVolumetric

double gcvVolumetric

Gross Calorific Value — volumetric (MJ/Sm3).

heatIngressKW

double heatIngressKW

Heat ingress into the tank (kW).

liquidComposition

Map<String,Double> liquidComposition

Liquid composition — mole fractions keyed by component name.

liquidMass

double liquidMass

LNG liquid mass remaining (kg).

liquidMoles

double liquidMoles

Moles of LNG remaining (mol).

liquidVolume

double liquidVolume

LNG liquid volume remaining (m3).

maxLayerDensityDifference

double maxLayerDensityDifference

Maximum density difference between layers (kg/m3). Zero if single layer.

methaneNumber

double methaneNumber

Methane Number of the BOG.

numberOfLayers

int numberOfLayers

Number of liquid layers (1 = well-mixed, >1 = stratified).

operationalMode

String operationalMode

Operational mode description (e.g., "LOADED_VOYAGE", "UNLOADING").

pressure

double pressure

Tank pressure (bara).

rolloverRisk

boolean rolloverRisk

Rollover risk flag.

temperature

double temperature

LNG bulk temperature (K).

timeHours

double timeHours

Time elapsed since start of scenario (hours).

vaporComposition

Map<String,Double> vaporComposition

Vapor composition — mole fractions keyed by component name.

wobbeIndex

double wobbeIndex

Wobbe Index of the boil-off gas (MJ/Sm3).

Class neqsim.process.equipment.lng.LNGAgeingScenario

class LNGAgeingScenario extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1013L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature (K).

bogNetwork

LNGBOGHandlingNetwork bogNetwork

BOG handling network.

bogOutletStream

StreamInterface bogOutletStream

BOG outlet stream.

heelManager

LNGHeelManager heelManager

Heel manager.

initialFillingRatio

double initialFillingRatio

Initial filling ratio (0-1).

inletStream

StreamInterface inletStream

Inlet stream (LNG cargo).

lngOutletStream

StreamInterface lngOutletStream

Aged LNG outlet stream.

methaneNumberCalculator

MethaneNumberCalculator methaneNumberCalculator

Methane number calculator (optional).

numberOfLayers

int numberOfLayers

Number of initial layers.

operationalEvents

List<LNGAgeingScenario.OperationalEvent> operationalEvents

Operational events (loading, unloading, cooldown, etc.).

overallHeatTransferCoeff

double overallHeatTransferCoeff

Overall heat transfer coefficient (W/m2/K).

results

List<LNGAgeingResult> results

Time-series results.

rolloverDetector

LNGRolloverDetector rolloverDetector

Rollover detector.

simulationTime

double simulationTime

Total simulation time (hours).

tankGeometry

TankGeometry tankGeometry

Tank geometry model (optional).

tankPressure

double tankPressure

Initial tank pressure (bara).

tankSurfaceArea

double tankSurfaceArea

Tank surface area (m2). Estimated from volume if not set.

tankVolume

double tankVolume

Tank volume (m3).

timeStepHours

double timeStepHours

Time step (hours).

useGERG2008

boolean useGERG2008

Whether to use GERG-2008 for density calculations.

vaporSpaceModel

LNGVaporSpaceModel vaporSpaceModel

Vapor space model.

voyageProfile

LNGVoyageProfile voyageProfile

Voyage profile (optional).

Class neqsim.process.equipment.lng.LNGAgeingScenario.OperationalEvent

class OperationalEvent extends Object implements Serializable

serialVersionUID:

1030L

Serialized Fields

description

String description

Event description.

durationHours

double durationHours

Event duration (hours).

eventType

LNGAgeingScenario.OperationalEvent.EventType eventType

Event type.

rateM3PerHour

double rateM3PerHour

Rate parameter for loading/unloading (m3/hr).

startTimeHours

double startTimeHours

Event start time (hours from simulation start).

Class neqsim.process.equipment.lng.LNGBOGHandlingNetwork

class LNGBOGHandlingNetwork extends Object implements Serializable

serialVersionUID:

1010L

Serialized Fields

baseFuelConsumption

double baseFuelConsumption

Base fuel gas consumption at design speed (kg/hr).

designSpeed

double designSpeed

Design speed (knots).

fuelGasConsumptionRate

double fuelGasConsumptionRate

Fuel gas consumption rate (kg/hr). Vessel propulsion demand.

gcuCapacity

double gcuCapacity

GCU capacity (kg/hr).

handlingMode

LNGBOGHandlingNetwork.HandlingMode handlingMode

Current handling mode.

loadedVoyage

boolean loadedVoyage

Whether the loaded voyage is in progress (true) or ballast voyage (false).

reliquefactionCapacity

double reliquefactionCapacity

Reliquefaction plant capacity (kg/hr). Typical range 3000-8000 kg/hr.

reliquefactionEfficiency

double reliquefactionEfficiency

Reliquefaction efficiency (fraction of BOG successfully reliquefied).

reliquefactionSpecificPower

double reliquefactionSpecificPower

Reliquefaction power consumption (kW per kg/hr of reliquefied gas).

speedExponent

double speedExponent

Speed exponent for fuel consumption (Q ~ V^n, typically n=2.5-3.0).

vesselSpeed

double vesselSpeed

Vessel speed (knots). Affects fuel consumption.

Class neqsim.process.equipment.lng.LNGBOGHandlingNetwork.BOGDisposition

class BOGDisposition extends Object implements Serializable

serialVersionUID:

1011L

Serialized Fields

bogGenerated

double bogGenerated

Total BOG generated (kg/hr).

bogReliquefied

double bogReliquefied

BOG reliquefied and returned to cargo (kg/hr).

bogToFuel

double bogToFuel

BOG consumed as fuel (kg/hr).

bogToGCU

double bogToGCU

BOG burned in GCU (kg/hr).

bogVented

double bogVented

BOG vented (emergency only) (kg/hr).

netCargoLoss

double netCargoLoss

Net cargo loss (kg/hr) = generated - reliquefied.

reliquefactionPowerKW

double reliquefactionPowerKW

Reliquefaction power consumption (kW).

Class neqsim.process.equipment.lng.LNGHeelManager

class LNGHeelManager extends Object implements Serializable

serialVersionUID:

1012L

Serialized Fields

heelComposition

Map<String,Double> heelComposition

Heel composition (mole fractions keyed by component name).

heelDensity

double heelDensity

Heel density (kg/m3).

heelFraction

double heelFraction

Heel volume as fraction of total tank volume (0-1).

heelTemperature

double heelTemperature

Heel temperature (K).

maxWarmTankTemperature

double maxWarmTankTemperature

Maximum allowable tank temperature for warm tank loading (K).

sprayCoolingActive

boolean sprayCoolingActive

Whether spray cooling is active.

sprayCoolingRate

double sprayCoolingRate

Spray cooling rate (kg/hr). Rate of heel recirculation as spray.

tankVolume

double tankVolume

Total tank volume (m3).

tankWallTemperature

double tankWallTemperature

Current tank wall temperature (K). Only relevant during ballast.

Class neqsim.process.equipment.lng.LNGRolloverDetector

class LNGRolloverDetector extends Object implements Serializable

serialVersionUID:

1008L

Serialized Fields

criticalRayleighNumber

double criticalRayleighNumber

Critical Rayleigh number for convection onset in LNG.

densityAlarmThreshold

double densityAlarmThreshold

Density difference threshold for rollover alarm (kg/m3).

densityDiffHistory

List<Double> densityDiffHistory

History of density differences for trend extrapolation (most recent last).

densityWarningThreshold

double densityWarningThreshold

Density difference threshold for rollover warning (kg/m3).

kinematicViscosity

double kinematicViscosity

LNG kinematic viscosity (m2/s). Approximate for LNG at -160C.

maxHistoryLength

int maxHistoryLength

Maximum history length for trend analysis.

temperatureThreshold

double temperatureThreshold

Temperature difference threshold for rollover concern (K).

thermalDiffusivity

double thermalDiffusivity

LNG thermal diffusivity (m2/s). Approximate for LNG.

thermalExpansionCoeff

double thermalExpansionCoeff

LNG thermal expansion coefficient (1/K). Approximate value for LNG.

Class neqsim.process.equipment.lng.LNGRolloverDetector.RolloverAssessment

class RolloverAssessment extends Object implements Serializable

serialVersionUID:

1009L

Serialized Fields

densityInversion

boolean densityInversion

Whether a density inversion exists (heavier on top).

estimatedTimeToRolloverHours

double estimatedTimeToRolloverHours

Estimated time until rollover occurs (hours). -1 = no rollover predicted.

maxDensityDifference

double maxDensityDifference

Maximum density difference between adjacent layers (kg/m3).

maxTemperatureDifference

double maxTemperatureDifference

Maximum temperature difference between layers (K).

message

String message

Descriptive message.

rayleighNumber

double rayleighNumber

Computed Rayleigh number (0 if single layer).

riskLayerLower

int riskLayerLower

Layer index pair where maximum risk exists.

riskLayerUpper

int riskLayerUpper

Layer index pair where maximum risk exists.

riskLevel

LNGRolloverDetector.RolloverRiskLevel riskLevel

Overall risk level.

Class neqsim.process.equipment.lng.LNGShipModel

class LNGShipModel extends Object implements Serializable

serialVersionUID:

1025L

Serialized Fields

bogNetwork

LNGBOGHandlingNetwork bogNetwork

Common BOG handling network for the ship.

shipName

String shipName

Ship name or voyage identifier.

shipResults

List<LNGShipModel.ShipResult> shipResults

Aggregate ship-level results.

simulationTime

double simulationTime

Total simulation time (hours).

tankResults

Map<String, List<LNGAgeingResult>> tankResults

Per-tank results keyed by tank name.

tankScenarios

List<LNGAgeingScenario> tankScenarios

List of tank scenarios (one per cargo tank).

timeStepHours

double timeStepHours

Time step for simulation (hours).

voyageProfile

LNGVoyageProfile voyageProfile

Voyage profile shared across all tanks.

Class neqsim.process.equipment.lng.LNGShipModel.ShipResult

class ShipResult extends Object implements Serializable

serialVersionUID:

1026L

Serialized Fields

averageDensity

double averageDensity

Mass-weighted average density (kg/m3).

averageGCV

double averageGCV

Mass-weighted average GCV (MJ/Sm3).

averageMN

double averageMN

Mass-weighted average Methane Number.

averageTemperature

double averageTemperature

Mass-weighted average temperature (K).

averageWobbeIndex

double averageWobbeIndex

Mass-weighted average Wobbe Index (MJ/Sm3).

bogReliquefied

double bogReliquefied

BOG reliquefied (kg/hr).

bogToFuel

double bogToFuel

BOG consumed as fuel (kg/hr).

bogToGCU

double bogToGCU

BOG burned in GCU (kg/hr).

bogVented

double bogVented

BOG vented (kg/hr).

netCargoLoss

double netCargoLoss

Net cargo loss (kg/hr).

numberOfTanks

int numberOfTanks

Number of active tanks.

timeHours

double timeHours

Time elapsed (hours).

totalBOGRate

double totalBOGRate

Total BOG rate from all tanks (kg/hr).

totalHeatIngressKW

double totalHeatIngressKW

Total heat ingress across all tanks (kW).

totalLiquidMass

double totalLiquidMass

Total liquid mass across all tanks (kg).

totalLiquidVolume

double totalLiquidVolume

Total liquid volume across all tanks (m3).

Class neqsim.process.equipment.lng.LNGSloshingModel

class LNGSloshingModel extends Object implements Serializable

serialVersionUID:

1024L

Serialized Fields

containmentType

TankGeometry.ContainmentType containmentType

Tank containment type (affects sloshing severity).

maxBOGEnhancement

double maxBOGEnhancement

Maximum BOG enhancement factor.

maxMixingFactor

double maxMixingFactor

Maximum mixing enhancement factor (physical limit).

referenceWaveHeight

double referenceWaveHeight

Reference wave height for normalisation (m). Typical North Sea conditions.

sloshingCoefficient

double sloshingCoefficient

Sloshing intensity coefficient. Empirical scaling factor.

Class neqsim.process.equipment.lng.LNGTankLayer

class LNGTankLayer extends Object implements Serializable

serialVersionUID:

1005L

Serialized Fields

composition

Map<String,Double> composition

Mole fractions keyed by component name.

density

double density

Layer density (kg/m3).

layerIndex

int layerIndex

Layer identifier (0 = bottom, increasing upward).

molarMass

double molarMass

Layer molar mass (kg/mol).

pressure

double pressure

Layer pressure (bara).

temperature

double temperature

Layer temperature (K).

totalMoles

double totalMoles

Total moles in this layer (mol).

volume

double volume

Layer volume (m3).

Class neqsim.process.equipment.lng.LNGTankLayeredModel

class LNGTankLayeredModel extends Object implements Serializable

serialVersionUID:

1006L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature (K).

bulkDensity

double bulkDensity

Current bulk liquid density (kg/m3).

bulkTemperature

double bulkTemperature

Current bulk liquid temperature (K).

currentVaporComposition

Map<String,Double> currentVaporComposition

Current vapor composition from last flash.

effectiveDiffusionCoeff

double effectiveDiffusionCoeff

Effective diffusion coefficient for inter-layer mass transfer (m2/s).

heatTransferModel

TankHeatTransferModel heatTransferModel

Multi-zone heat transfer model (optional, overrides simple U*A if set).

layerMergeDensityThreshold

double layerMergeDensityThreshold

Minimum density difference to maintain separate layers (kg/m3).

layers

List<LNGTankLayer> layers

List of liquid layers from bottom (index 0) to top.

methaneNumberCalculator

MethaneNumberCalculator methaneNumberCalculator

Methane number calculator (optional, overrides simplified correlation if set).

overallHeatTransferCoeff

double overallHeatTransferCoeff

Overall heat transfer coefficient (W/m2/K).

sloshingMixingFactor

double sloshingMixingFactor

Sloshing mixing enhancement factor (1.0 = no sloshing, >1.0 = enhanced mixing).

sloshingModel

LNGSloshingModel sloshingModel

Sloshing model (optional, overrides constant sloshing factor if set).

tankGeometry

TankGeometry tankGeometry

Tank geometry model (optional, overrides surface area if set).

tankPressure

double tankPressure

Tank pressure (bara).

tankSurfaceArea

double tankSurfaceArea

Tank outer surface area (m2).

totalLiquidMoles

double totalLiquidMoles

Current total liquid moles.

totalTankVolume

double totalTankVolume

Tank total volume (m3).

useGERG2008

boolean useGERG2008

Whether to use GERG-2008 EOS for density and quality calculations.

Class neqsim.process.equipment.lng.LNGVaporSpaceModel

class LNGVaporSpaceModel extends Object implements Serializable

serialVersionUID:

1007L

Serialized Fields

currentLiquidVolume

double currentLiquidVolume

Current liquid volume (m3).

equilibriumMode

boolean equilibriumMode

Whether to use equilibrium mode (true) or accumulation mode (false).

maxPressure

double maxPressure

Maximum allowed tank pressure (bara) — relief valve set point.

minPressure

double minPressure

Minimum allowed tank pressure (bara).

tankPressure

double tankPressure

Current tank pressure (bara).

totalTankVolume

double totalTankVolume

Tank total volume (m3).

unhandledBOGMoles

double unhandledBOGMoles

BOG moles generated but not yet handled in this time step.

useFlashModel

boolean useFlashModel

Whether to use flash-based vapor space model (true) or simple PV=nRT (false).

vaporComposition

Map<String,Double> vaporComposition

Current vapor composition (mole fractions).

vaporMoles

double vaporMoles

Moles of vapor in the ullage space.

vaporTemperature

double vaporTemperature

Current vapor temperature (K).

Class neqsim.process.equipment.lng.LNGVoyageProfile

class LNGVoyageProfile extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

defaultAmbientTemperature

double defaultAmbientTemperature

Default ambient temperature if no segments defined (K).

segments

List<LNGVoyageProfile.Segment> segments

List of voyage segments in chronological order.

totalDurationHours

double totalDurationHours

Total voyage duration (hours).

voyageName

String voyageName

Voyage description or route name.

Class neqsim.process.equipment.lng.LNGVoyageProfile.EnvironmentConditions

class EnvironmentConditions extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature (K).

significantWaveHeight

double significantWaveHeight

Significant wave height (m).

solarRadiation

double solarRadiation

Solar radiation (W/m2).

windSpeed

double windSpeed

Wind speed (m/s).

Class neqsim.process.equipment.lng.LNGVoyageProfile.Segment

class Segment extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient air/sea temperature for this segment (K).

endTimeHours

double endTimeHours

Segment end time relative to voyage start (hours).

significantWaveHeight

double significantWaveHeight

Significant wave height Hs (m). Affects sloshing-induced mixing.

solarRadiation

double solarRadiation

Solar radiation (W/m2). Affects roof heat ingress.

startTimeHours

double startTimeHours

Segment start time relative to voyage start (hours).

windSpeed

double windSpeed

Wind speed (m/s). Affects convective heat transfer on tank outer surfaces.

Class neqsim.process.equipment.lng.MethaneNumberCalculator

class MethaneNumberCalculator extends Object implements Serializable

serialVersionUID:

1023L

Serialized Fields

method

MethaneNumberCalculator.Method method

Active calculation method.

Class neqsim.process.equipment.lng.TankGeometry

class TankGeometry extends Object implements Serializable

serialVersionUID:

1020L

Serialized Fields

containmentType

TankGeometry.ContainmentType containmentType

Containment type.

height

double height

Tank height (m). For membrane: depth from bottom to roof. For Moss: diameter.

innerDiameter

double innerDiameter

Tank inner diameter (m). For Moss and Type C.

insulationConductivity

double insulationConductivity

Insulation thermal conductivity (W/(m*K)).

insulationThickness

double insulationThickness

Insulation thickness (m). Typical: membrane 0.27m, Moss 0.30m.

length

double length

Tank length (m). For membrane/SPB: fore-aft length. For Type C: cylinder length.

totalVolume

double totalVolume

Total tank volume (m3).

width

double width

Tank width/breadth (m). For membrane: athwartship. For Moss/Type C: diameter.

Class neqsim.process.equipment.lng.TankHeatTransferModel

class TankHeatTransferModel extends Object implements Serializable

serialVersionUID:

1021L

Serialized Fields

solarAbsorptivity

double solarAbsorptivity

Solar absorptivity of deck surface (0-1). Typical: 0.3-0.6 for painted steel.

tankGeometry

TankGeometry tankGeometry

Optional tank geometry for auto zone calculation.

windConvectionFactor

double windConvectionFactor

Wind-enhanced convection factor. Applied to roof/exposed zones.

zones

List<TankHeatTransferModel.HeatTransferZone> zones

List of heat transfer zones.

Class neqsim.process.equipment.lng.TankHeatTransferModel.HeatTransferZone

class HeatTransferZone extends Object implements Serializable

serialVersionUID:

1022L

Serialized Fields

area

double area

Heat transfer area (m2).

boundaryTemperature

double boundaryTemperature

Boundary temperature (K).

name

String name

Zone name (e.g., "bottom", "sidewalls", "roof").

uValue

double uValue

Overall heat transfer coefficient (W/(m2*K)).

Package neqsim.process.equipment.manifold

Class neqsim.process.equipment.manifold.Manifold

class Manifold extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Flag indicating if manifold has been auto-sized.

branchInnerDiameter

double branchInnerDiameter

Branch inner diameter in meters.

branchWallThickness

double branchWallThickness

Branch wall thickness in meters.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

headerInnerDiameter

double headerInnerDiameter

Header inner diameter in meters.

headerWallThickness

double headerWallThickness

Header wall thickness in meters.

localmixer

Mixer localmixer

localsplitter

Splitter localsplitter

maxBranchVelocityDesign

double maxBranchVelocityDesign

Maximum branch velocity design limit in m/s.

maxFRMSDesign

double maxFRMSDesign

Maximum FRMS design limit.

maxHeaderVelocityDesign

double maxHeaderVelocityDesign

Maximum header velocity design limit in m/s.

maxLOFDesign

double maxLOFDesign

Maximum LOF design limit (1.0 = high risk threshold).

mechanicalDesign

ManifoldMechanicalDesign mechanicalDesign

Mechanical design for the manifold.

splitFactors

double[] splitFactors

supportArrangement

String supportArrangement

Support arrangement for FIV calculation.

Package neqsim.process.equipment.membrane

Class neqsim.process.equipment.membrane.MembraneSeparator

class MembraneSeparator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultPermeateFraction

double defaultPermeateFraction

inletStream

StreamInterface inletStream

membraneArea

double membraneArea

permeabilities

Map<String,Double> permeabilities

permeateFractions

Map<String,Double> permeateFractions

permeateStream

StreamInterface permeateStream

retentateStream

StreamInterface retentateStream

Package neqsim.process.equipment.mixer

Class neqsim.process.equipment.mixer.Mixer

class Mixer extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

designPressureDrop

double designPressureDrop

Design pressure drop [bar].

doMultiPhaseCheck

boolean doMultiPhaseCheck

isSetOutTemperature

boolean isSetOutTemperature

lowestPressure

double lowestPressure

maxDesignVelocity

double maxDesignVelocity

Maximum design velocity [m/s].

mechanicalDesign

MixerMechanicalDesign mechanicalDesign

Mechanical design for the mixer.

mixedStream

StreamInterface mixedStream

mixerCapacityAnalysisEnabled

boolean mixerCapacityAnalysisEnabled

Whether capacity analysis is enabled.

mixerCapacityConstraints

Map<String, CapacityConstraint> mixerCapacityConstraints

Mixer capacity constraints map.

numberOfInputStreams

int numberOfInputStreams

outTemperature

double outTemperature

streams

ArrayList<StreamInterface> streams

Class neqsim.process.equipment.mixer.StaticMixer

class StaticMixer extends Mixer implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.mixer.StaticNeqMixer

class StaticNeqMixer extends StaticMixer implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.mixer.StaticPhaseMixer

class StaticPhaseMixer extends StaticMixer implements Serializable

serialVersionUID:

1000L

Package neqsim.process.equipment.network

Class neqsim.process.equipment.network.LoopDetector

class LoopDetector extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

adjacencyList

Map<String, List<LoopDetector.Edge>> adjacencyList

Adjacency list representation of the network graph.

allEdges

List<LoopDetector.Edge> allEdges

All edges in the graph (forward direction only).

depth

Map<String,Integer> depth

Depth of each node in the spanning tree.

independentLoops

List<NetworkLoop> independentLoops

Detected independent loops.

loopIdCounter

int loopIdCounter

Counter for generating loop IDs.

nodes

Set<String> nodes

Set of node names.

parent

Map<String,String> parent

Parent pointers from DFS spanning tree.

parentEdge

Map<String, LoopDetector.Edge> parentEdge

Edge used to reach each node in spanning tree.

spanningTreePipes

Set<String> spanningTreePipes

Set of pipe names that are in the spanning tree.

Class neqsim.process.equipment.network.LoopedPipeNetwork

class LoopedPipeNetwork extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

attachedReservoirs

Map<String, LoopedPipeNetwork.ReservoirAttachment> attachedReservoirs

Map from source node name to reservoir attachment.

co2EmissionFactor

double co2EmissionFactor

converged

boolean converged

couplingToleranceBar

double couplingToleranceBar

Pressure tolerance for topside coupling convergence (bar). Default 0.5.

fluidTemplate

SystemInterface fluidTemplate

fuelGasHeatRate

double fuelGasHeatRate

iterationCount

int iterationCount

loops

List<NetworkLoop> loops

massBalanceError

double massBalanceError

maxAllowableErosionRate

double maxAllowableErosionRate

maxAllowableSandRate

double maxAllowableSandRate

maxCompressorPowerMW

double maxCompressorPowerMW

Maximum compressor power in MW. Default 999 (unlimited).

maxCouplingIterations

int maxCouplingIterations

Maximum coupling iterations. Default 20.

maxIterations

int maxIterations

maxResidual

double maxResidual

maxSeparatorUtilization

double maxSeparatorUtilization

Maximum separator capacity utilization (0.0 to 1.0). Default 0.90.

methaneSlipFactor

double methaneSlipFactor

minAllowableWallLife

double minAllowableWallLife

pipeModelType

LoopedPipeNetwork.PipeModelType pipeModelType

pipeNames

List<String> pipeNames

relaxationFactor

double relaxationFactor

solverType

LoopedPipeNetwork.SolverType solverType

tolerance

double tolerance

topsideSinkNodeName

String topsideSinkNodeName

Name of the sink node used as the topside coupling point.

totalCO2Emissions

double totalCO2Emissions

totalFuelGasRate

double totalFuelGasRate

totalWaterInjection

double totalWaterInjection

totalWaterProduction

double totalWaterProduction

Class neqsim.process.equipment.network.NetworkLoop

class NetworkLoop extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lastFlowCorrection

double lastFlowCorrection

Last calculated flow correction (kg/s).

lastHeadLossImbalance

double lastHeadLossImbalance

Last calculated head loss imbalance (Pa).

loopId

String loopId

Unique identifier for this loop.

members

List<NetworkLoop.LoopMember> members

Pipes in this loop with their directions.

tolerance

double tolerance

Convergence tolerance for head loss balance (Pa).

Class neqsim.process.equipment.network.NetworkLoop.LoopMember

class LoopMember extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

direction

int direction

Direction in the loop: +1 = same as loop direction, -1 = opposite.

pipeName

String pipeName

The pipeline name.

Class neqsim.process.equipment.network.PipeFlowNetwork

class PipeFlowNetwork extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

advectionScheme

AdvectionScheme advectionScheme

compositionalTracking

boolean compositionalTracking

defaultOuterHeatTransfer

double[] defaultOuterHeatTransfer

defaultOuterTemperature

double[] defaultOuterTemperature

defaultWallHeatTransfer

double[] defaultWallHeatTransfer

defaultWallRoughness

double defaultWallRoughness

feedStreams

List<StreamInterface> feedStreams

initialized

boolean initialized

simulationTime

double simulationTime

terminalManifoldName

String terminalManifoldName

Class neqsim.process.equipment.network.WellFlowlineNetwork

class WellFlowlineNetwork extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

facilityPipeline

PipeBeggsAndBrills facilityPipeline

forceFlowFromPressureSolve

boolean forceFlowFromPressureSolve

iterationTolerance

double iterationTolerance

lastTerminalManifoldPressure

Double lastTerminalManifoldPressure

maxIterations

int maxIterations

propagateArrivalPressureToWells

boolean propagateArrivalPressureToWells

targetEndpointPressure

Double targetEndpointPressure

targetEndpointPressureUnit

String targetEndpointPressureUnit

Package neqsim.process.equipment.pipeline

Class neqsim.process.equipment.pipeline.AdiabaticPipe

class AdiabaticPipe extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Flag indicating if pipe has been auto-sized.

dH

double dH

electricalDesign

PipelineElectricalDesign electricalDesign

inletPressure

double inletPressure

insideDiameter

double insideDiameter

instrumentDesign

PipelineInstrumentDesign instrumentDesign

maxDesignFRMS

double maxDesignFRMS

Maximum design FRMS value.

maxDesignLOF

double maxDesignLOF

Maximum design LOF value.

maxDesignVelocity

double maxDesignVelocity

Maximum design velocity in m/s.

pipeSpecification

String pipeSpecification

pipeWallRoughnessLocal

double pipeWallRoughnessLocal

pipeWallThickness

double pipeWallThickness

Wall thickness in meters.

pressureOut

double pressureOut

rhonePoulencVelocity

RhonePoulencVelocity rhonePoulencVelocity

Rhone-Poulenc velocity calculator. When non-null, maximum velocity is determined from the Rhone-Poulenc curves instead of API RP 14E.

setPressureOut

boolean setPressureOut

setTemperature

boolean setTemperature

supportArrangement

String supportArrangement

Support arrangement for FIV calculations.

temperatureOut

double temperatureOut

Class neqsim.process.equipment.pipeline.AdiabaticTwoPhasePipe

class AdiabaticTwoPhasePipe extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

dH

double dH

flowLimit

double flowLimit

flowPattern

String flowPattern

inletPressure

double inletPressure

insideDiameter

double insideDiameter

length

double length

maxflowunit

String maxflowunit

pipeSpecification

String pipeSpecification

pipeWallRoughness

double pipeWallRoughness

pressureOut

double pressureOut

pressureOutLimit

double pressureOutLimit

setPressureOut

boolean setPressureOut

setTemperature

boolean setTemperature

temperatureOut

double temperatureOut

velocity

double velocity

Class neqsim.process.equipment.pipeline.Fittings

class Fittings extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

fittingList

ArrayList<Fittings.Fitting> fittingList

List of fittings in this collection.

Class neqsim.process.equipment.pipeline.Fittings.Fitting

class Fitting extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

fittingName

String fittingName

Descriptive name of the fitting.

kFactor

double kFactor

Optional K-factor (resistance coefficient).

LtoD

double LtoD

Equivalent length ratio (L/D).

Class neqsim.process.equipment.pipeline.IncompressiblePipeFlow

class IncompressiblePipeFlow extends AdiabaticPipe implements Serializable

serialVersionUID:

1001L

Serialized Fields

momentum

double momentum

Momentum term for pressure drop calculation (ρV²).

Class neqsim.process.equipment.pipeline.MultilayerThermalCalculator

class MultilayerThermalCalculator extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature [K].

enableThermalMass

boolean enableThermalMass

Enable transient thermal mass effects.

fluidTemperature

double fluidTemperature

Fluid temperature [K].

innerHTC

double innerHTC

Inner (fluid-side) heat transfer coefficient [W/(m²·K)].

innerRadius

double innerRadius

Inner radius (pipe bore) [m].

layers

List<RadialThermalLayer> layers

List of thermal layers from inside to outside.

outerHTC

double outerHTC

Outer (ambient-side) heat transfer coefficient [W/(m²·K)].

overallUValue

double overallUValue

Cached overall U-value based on inner surface [W/(m²·K)].

uValueDirty

boolean uValueDirty

Flag indicating if U-value needs recalculation.

Class neqsim.process.equipment.pipeline.MultiphasePipe

class MultiphasePipe extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

flowSystem

TwoPhasePipeFlowSystem flowSystem

The underlying two-phase pipe flow system.

maxSimulationTime

double maxSimulationTime

Maximum simulation time for transient simulations in seconds.

nonEquilibriumHeatTransfer

boolean nonEquilibriumHeatTransfer

Whether to use non-equilibrium heat transfer.

nonEquilibriumMassTransfer

boolean nonEquilibriumMassTransfer

Whether to use non-equilibrium mass transfer.

solverType

String solverType

Solver type for the flow system.

timeStep

double timeStep

Time step for transient simulations in seconds.

Class neqsim.process.equipment.pipeline.OnePhasePipeLine

class OnePhasePipeLine extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

compositionalTracking

boolean compositionalTracking

Whether to track composition during transient simulation.

initialized

boolean initialized

Whether the pipe system has been initialized.

internalTimeStep

double internalTimeStep

Time step for internal solver.

simulationTime

double simulationTime

Current simulation time in seconds.

Class neqsim.process.equipment.pipeline.PipeBeggsAndBrills

class PipeBeggsAndBrills extends Pipeline implements Serializable

serialVersionUID:

1001L

Serialized Fields

A

double A

angle

double angle

area

double area

autoSized

boolean autoSized

Flag indicating if pipeline has been auto-sized.

calculationMode

PipeBeggsAndBrills.CalculationMode calculationMode

constantSurfaceTemperature

double constantSurfaceTemperature

cp

double cp

criticalPressure

double criticalPressure

crossSectionArea

double crossSectionArea

cumulativeElevation

double cumulativeElevation

cumulativeLength

double cumulativeLength

dTlm

double dTlm

El

double El

elevation

double elevation

elevationProfile

List<Double> elevationProfile

error

double error

flowConvergenceTolerance

double flowConvergenceTolerance

flowRegimeProfile

List<PipeBeggsAndBrills.FlowRegime> flowRegimeProfile

formationTemperatureGradient

double formationTemperatureGradient

Formation (geothermal) temperature gradient in K/m. When set to a positive value, the surface temperature varies with depth along the pipe: T_surface(depth) = surfaceTemperatureAtInlet + gradient * depth. For injection wells (negative elevation), depth increases downward. For production wells or risers, depth decreases upward.

frictionFactor

double frictionFactor

frictionPressureLoss

double frictionPressureLoss

frictionTwoPhase

double frictionTwoPhase

gasSuperficialVelocityProfile

List<Double> gasSuperficialVelocityProfile

heatTransferCoefficient

double heatTransferCoefficient

heatTransferMode

PipeBeggsAndBrills.HeatTransferMode heatTransferMode

hmax

double hmax

hydrostaticPressureDrop

double hydrostaticPressureDrop

includeFrictionHeating

boolean includeFrictionHeating

includeJouleThomsonEffect

boolean includeJouleThomsonEffect

incrementsProfile

List<Integer> incrementsProfile

inletPressure

double inletPressure

inputVolumeFractionLiquid

double inputVolumeFractionLiquid

insideDiameter

double insideDiameter

insulationThermalConductivity

double insulationThermalConductivity

insulationThickness

double insulationThickness

iteration

int iteration

iterationT

double iterationT

length

double length

lengthProfile

List<Double> lengthProfile

liquidDensityProfile

List<Double> liquidDensityProfile

liquidHoldupProfile

List<Double> liquidHoldupProfile

liquidSuperficialVelocityProfile

List<Double> liquidSuperficialVelocityProfile

maxDesignAIV

double maxDesignAIV

Maximum design AIV (Acoustic-Induced Vibration) power level in kW.

maxDesignFRMS

double maxDesignFRMS

Maximum design FRMS value.

maxDesignLOF

double maxDesignLOF

Maximum design LOF value.

maxDesignVelocity

double maxDesignVelocity

Maximum design velocity in m/s.

maxFlowIterations

int maxFlowIterations

maxflowunit

String maxflowunit

mixtureDensity

double mixtureDensity

mixtureDensityProfile

List<Double> mixtureDensityProfile

mixtureFroudeNumber

double mixtureFroudeNumber

mixtureLiquidDensity

double mixtureLiquidDensity

mixtureLiquidViscosity

double mixtureLiquidViscosity

mixtureOilMassFraction

double mixtureOilMassFraction

mixtureOilVolumeFraction

double mixtureOilVolumeFraction

mixtureReynoldsNumber

List<Double> mixtureReynoldsNumber

mixtureSuperficialVelocityProfile

List<Double> mixtureSuperficialVelocityProfile

mixtureViscosityProfile

List<Double> mixtureViscosityProfile

muNoSlip

double muNoSlip

nominalDiameter

double nominalDiameter

Nu

double Nu

numberOfIncrements

int numberOfIncrements

outerHeatTransferCoefficient

double outerHeatTransferCoefficient

pipelineElectricalDesign

PipelineElectricalDesign pipelineElectricalDesign

pipeSpecification

String pipeSpecification

PipeSpecSet

Boolean PipeSpecSet

pipeThickness

double pipeThickness

pipeWallRoughness

double pipeWallRoughness

pipeWallThermalConductivity

double pipeWallThermalConductivity

Pr

double Pr

pressureDrop

double pressureDrop

pressureDropProfile

List<Double> pressureDropProfile

pressureOut

double pressureOut

pressureProfile

List<Double> pressureProfile

q1

double q1

q2

double q2

regime

PipeBeggsAndBrills.FlowRegime regime

ReNoSlip

double ReNoSlip

rhonePoulencVelocity

RhonePoulencVelocity rhonePoulencVelocity

Rhone-Poulenc velocity calculator. When non-null, maximum velocity is determined from the Rhone-Poulenc curves instead of API RP 14E.

rhoNoSlip

double rhoNoSlip

runAdiabatic

boolean runAdiabatic

runConstantSurfaceTemperature

boolean runConstantSurfaceTemperature

runIsothermal

boolean runIsothermal

S

double S

segmentLengthMeters

double segmentLengthMeters

specifiedOutletPressure

double specifiedOutletPressure

specifiedOutletPressureUnit

String specifiedOutletPressureUnit

supGasVel

double supGasVel

supLiquidVel

double supLiquidVel

supMixVel

double supMixVel

supportArrangement

String supportArrangement

Support arrangement for FIV calculations.

surfaceTemperatureAtInlet

double surfaceTemperatureAtInlet

Surface (formation) temperature at the inlet of the pipe in Kelvin. Used together with PipeBeggsAndBrills.formationTemperatureGradient to compute a depth-dependent boundary temperature.

temperatureOut

double temperatureOut

temperatureProfile

List<Double> temperatureProfile

thermalConductivity

double thermalConductivity

Tmi

double Tmi

Tmo

double Tmo

totalElevation

double totalElevation

totalLength

double totalLength

totalPressureDrop

double totalPressureDrop

transientDensityProfile

List<Double> transientDensityProfile

transientInitialized

boolean transientInitialized

transientMassFlowProfile

List<Double> transientMassFlowProfile

transientPressureProfile

List<Double> transientPressureProfile

transientTemperatureProfile

List<Double> transientTemperatureProfile

transientVelocityProfile

List<Double> transientVelocityProfile

Ts

double Ts

X

double X

Class neqsim.process.equipment.pipeline.PipeHagedornBrown

class PipeHagedornBrown extends Pipeline implements Serializable

serialVersionUID:

1001L

Serialized Fields

calculatedHoldup

double calculatedHoldup

Calculated liquid holdup.

lengthProfileList

List<Double> lengthProfileList

Length profile along the pipe.

mixtureDensity

double mixtureDensity

Mixture density in kg/m3.

mixtureVelocity

double mixtureVelocity

Mixture velocity in m/s.

pressureProfileList

List<Double> pressureProfileList

Pressure profile along the pipe.

superficialGasVelocity

double superficialGasVelocity

Superficial gas velocity in m/s.

superficialLiquidVelocity

double superficialLiquidVelocity

Superficial liquid velocity in m/s.

temperatureProfileList

List<Double> temperatureProfileList

Temperature profile along the pipe.

totalPressureDrop

double totalPressureDrop

Total pressure drop in bar.

Class neqsim.process.equipment.pipeline.Pipeline

class Pipeline extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

adiabatic

boolean adiabatic

Flag for adiabatic operation.

ambientTemperature

double ambientTemperature

Ambient temperature in Kelvin.

angle

double angle

Pipe angle from horizontal in degrees.

burialDepth

double burialDepth

Burial depth in meters.

buried

boolean buried

Flag for buried pipe.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

coatingConductivity

double coatingConductivity

Coating thermal conductivity in W/(m·K).

coatingThickness

double coatingThickness

Coating thickness in meters.

corrosionAllowance

double corrosionAllowance

Corrosion allowance in meters.

designCode

String designCode

Design code (e.g., ASME_B31_8).

designPressure

double designPressure

Design pressure in MPa.

designTemperature

double designTemperature

Design temperature in Celsius.

diameter

double diameter

Pipe inner diameter in meters.

elevation

double elevation

Elevation change from inlet to outlet in meters.

equilibriumHeatTransfer

boolean equilibriumHeatTransfer

equilibriumMassTransfer

boolean equilibriumMassTransfer

fileName

String fileName

fittings

Fittings fittings

Collection of pipe fittings for equivalent length calculations.

Fittings such as bends, valves, tees, and reducers contribute additional pressure drop beyond the straight pipe friction loss. This is accounted for using the equivalent length method, where each fitting is assigned an L/D ratio representing the length of straight pipe (in diameters) that would produce the same pressure drop.

flowPattern

String flowPattern

flowRegime

String flowRegime

Flow regime string.

frictionFactor

double frictionFactor

Friction factor.

heatTransferCoefficient

double heatTransferCoefficient

Overall heat transfer coefficient in W/(m²·K).

inletElevation

double inletElevation

Inlet elevation above reference in meters.

innerHeatTransferCoefficient

double innerHeatTransferCoefficient

Inner (fluid-side) heat transfer coefficient in W/(m²·K).

insulationConductivity

double insulationConductivity

Insulation thermal conductivity in W/(m·K).

insulationThickness

double insulationThickness

Insulation thickness in meters.

insulationType

String insulationType

Insulation type/material.

legHeights

double[] legHeights

legPositions

double[] legPositions

length

double length

Total pipe length in meters.

liquidHoldup

double liquidHoldup

Liquid holdup fraction.

liquidHoldupProfile

double[] liquidHoldupProfile

Liquid holdup profile along pipe.

locationClass

int locationClass

Location class per ASME B31.8.

materialGrade

String materialGrade

Material grade per API 5L.

numberOfIncrements

int numberOfIncrements

Number of computational increments.

numberOfLegs

int numberOfLegs

numberOfNodesInLeg

int numberOfNodesInLeg

outerHeatTransferCoefficient

double outerHeatTransferCoefficient

Outer (external) heat transfer coefficient in W/(m²·K).

outerHeatTransferCoeffs

double[] outerHeatTransferCoeffs

outerTemperature

double[] outerTemperature

outletElevation

double outletElevation

Outlet elevation above reference in meters.

pipe

FlowSystemInterface pipe

pipeDiameters

double[] pipeDiameters

pipelineMechanicalDesign

PipelineMechanicalDesign pipelineMechanicalDesign

pipeMaterial

String pipeMaterial

Pipe material.

pipeSchedule

String pipeSchedule

Pipe schedule.

pipeWallConductivity

double pipeWallConductivity

Pipe wall thermal conductivity in W/(m·K).

pipeWallRoughness

double[] pipeWallRoughness

pressureDrop

double pressureDrop

Calculated pressure drop in bar.

pressureProfile

double[] pressureProfile

Pressure profile along pipe.

reynoldsNumber

double reynoldsNumber

Reynolds number.

roughness

double roughness

Pipe wall roughness in meters.

soilConductivity

double soilConductivity

Soil thermal conductivity in W/(m·K).

surfaceTemperature

double surfaceTemperature

Constant surface temperature in Kelvin.

system

SystemInterface system

temperatureProfile

double[] temperatureProfile

Temperature profile along pipe.

times

double[] times

useFittings

boolean useFittings

Flag to enable/disable fittings in pressure drop calculations.

When true (default), the equivalent length from fittings is added to the physical pipe length in pressure drop calculations. Set to false to temporarily exclude fittings.

velocity

double velocity

Flow velocity in m/s.

wallHeatTransferCoeffs

double[] wallHeatTransferCoeffs

wallThickness

double wallThickness

Pipe wall thickness in meters.

Class neqsim.process.equipment.pipeline.PipeMukherjeeAndBrill

class PipeMukherjeeAndBrill extends Pipeline implements Serializable

serialVersionUID:

1002L

Serialized Fields

calculatedHoldup

double calculatedHoldup

Calculated liquid holdup.

currentFlowPattern

PipeMukherjeeAndBrill.FlowPattern currentFlowPattern

Identified flow pattern.

flowPatternProfile

List<String> flowPatternProfile

Flow pattern profile along the pipe.

lengthProfileList

List<Double> lengthProfileList

Length profile along the pipe.

mixtureDensity

double mixtureDensity

Mixture density in kg/m3.

mixtureVelocity

double mixtureVelocity

Mixture velocity in m/s.

pressureProfileList

List<Double> pressureProfileList

Pressure profile along the pipe.

superficialGasVelocity

double superficialGasVelocity

Superficial gas velocity in m/s.

superficialLiquidVelocity

double superficialLiquidVelocity

Superficial liquid velocity in m/s.

temperatureProfileList

List<Double> temperatureProfileList

Temperature profile along the pipe.

totalPressureDrop

double totalPressureDrop

Total pressure drop in bar.

Class neqsim.process.equipment.pipeline.RadialThermalLayer

class RadialThermalLayer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

density

double density

Density [kg/m³].

innerRadius

double innerRadius

Inner radius of this layer [m].

materialType

RadialThermalLayer.MaterialType materialType

Layer material type.

name

String name

Layer name/identifier.

outerRadius

double outerRadius

Outer radius of this layer [m].

previousTemperature

double previousTemperature

Temperature at previous time step [K].

specificHeat

double specificHeat

Specific heat capacity [J/(kg·K)].

temperature

double temperature

Current temperature of layer [K] - for transient calculations.

thermalConductivity

double thermalConductivity

Thermal conductivity [W/(m·K)].

Class neqsim.process.equipment.pipeline.RhonePoulencVelocity

class RhonePoulencVelocity extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

customCFactor

double customCFactor

Optional custom C-factor (overrides service type default if positive).

customExponent

double customExponent

Optional custom exponent (overrides service type default if positive).

serviceType

RhonePoulencVelocity.ServiceType serviceType

The selected service type.

useInterpolation

boolean useInterpolation

Whether to use tabulated data with log-log interpolation (true) or power-law formula.

Class neqsim.process.equipment.pipeline.Riser

class Riser extends PipeBeggsAndBrills implements Serializable

serialVersionUID:

1000L

Serialized Fields

appliedTopTension

double appliedTopTension

Applied top tension in kN.

buoyancyModuleDepth

double buoyancyModuleDepth

Depth of buoyancy modules for lazy-wave (meters from surface).

buoyancyModuleLength

double buoyancyModuleLength

Length of buoyancy section in meters.

buoyancyPerMeter

double buoyancyPerMeter

Buoyancy per unit length in N/m (for lazy-wave).

currentVelocity

double currentVelocity

Current velocity at surface in m/s.

departureAngle

double departureAngle

Departure angle from seabed in degrees.

peakWavePeriod

double peakWavePeriod

Peak wave period in seconds.

platformHeaveAmplitude

double platformHeaveAmplitude

Platform heave motion amplitude in meters.

platformHeavePeriod

double platformHeavePeriod

Platform heave period in seconds.

platformOffset

double platformOffset

Platform horizontal offset in meters.

riserMechanicalDesign

RiserMechanicalDesign riserMechanicalDesign

Riser mechanical design.

riserType

Riser.RiserType riserType

Riser type.

seabedCurrentVelocity

double seabedCurrentVelocity

Current velocity at seabed in m/s.

seabedFriction

double seabedFriction

Seabed friction coefficient.

seawaterTemperature

double seawaterTemperature

Seawater temperature in Celsius.

significantWaveHeight

double significantWaveHeight

Significant wave height in meters.

soilType

String soilType

Seabed soil type.

tensionVariationFactor

double tensionVariationFactor

Tension variation range (heave) as fraction.

topAngle

double topAngle

Top hangoff angle from vertical in degrees.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.pipeline.SimpleTPoutPipeline

class SimpleTPoutPipeline extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

dH

double dH

pressureOutValue

double pressureOutValue

setTemperature

boolean setTemperature

temperatureOutValue

double temperatureOutValue

Class neqsim.process.equipment.pipeline.TopsidePiping

class TopsidePiping extends PipeBeggsAndBrills implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature in Celsius.

corrosiveEnvironment

boolean corrosiveEnvironment

Is the piping in a corrosive environment?

exposedToWeather

boolean exposedToWeather

Is the piping exposed to weather?

flangeRating

int flangeRating

Flange rating class (150, 300, 600, 900, 1500, 2500).

insulationThickness

double insulationThickness

Insulation thickness in meters.

insulationType

TopsidePiping.InsulationType insulationType

Insulation type.

maxOperatingPressure

double maxOperatingPressure

Maximum operating pressure in bara.

maxOperatingTemperature

double maxOperatingTemperature

Maximum operating temperature in Celsius.

minOperatingPressure

double minOperatingPressure

Minimum operating pressure in bara.

minOperatingTemperature

double minOperatingTemperature

Minimum operating temperature in Celsius.

numberOfAnchors

int numberOfAnchors

Number of anchors.

numberOfElbows45

int numberOfElbows45

Number of 45-degree elbows.

numberOfElbows90

int numberOfElbows90

Number of 90-degree elbows.

numberOfExpansionLoops

int numberOfExpansionLoops

Number of expansion loops.

numberOfFlanges

int numberOfFlanges

Number of flanges.

numberOfGuides

int numberOfGuides

Number of guides.

numberOfReducers

int numberOfReducers

Number of reducers.

numberOfSupports

int numberOfSupports

Number of pipe supports.

numberOfTees

int numberOfTees

Number of tees.

numberOfValves

int numberOfValves

Number of valves.

pipeSchedule

TopsidePiping.PipeSchedule pipeSchedule

Pipe schedule.

serviceType

TopsidePiping.ServiceType serviceType

Service type for this piping.

supportSpacing

double supportSpacing

Support spacing in meters.

topsideMechanicalDesign

TopsidePipingMechanicalDesign topsideMechanicalDesign

Topside piping mechanical design.

valveType

String valveType

Valve type (Gate, Ball, Globe, Check).

windSpeed

double windSpeed

Wind speed in m/s.

Class neqsim.process.equipment.pipeline.TransientWellbore

class TransientWellbore extends Pipeline implements Serializable

serialVersionUID:

1000L

Serialized Fields

coolingTimeConstant

double coolingTimeConstant

Cooling time constant for exponential decay toward formation temperature in hours.

depressurizationRate

double depressurizationRate

Depressurization rate in bar per hour (0 = no depressurization).

formationTempBottom

double formationTempBottom

Formation temperature at bottom-hole in Kelvin.

formationTempTop

double formationTempTop

Formation temperature at wellhead (top) in Kelvin.

numberOfSegments

int numberOfSegments

Number of vertical segments for discretization.

radialHeatTransferCoeff

double radialHeatTransferCoeff

Overall radial heat transfer coefficient in W/(m2.K).

snapshots

List<TransientWellbore.TransientSnapshot> snapshots

Time step results: list of snapshots, each containing depth vs (T, P, phases, compositions).

tubingDiameter

double tubingDiameter

Tubing inner diameter in meters.

wellDepth

double wellDepth

Well measured depth in meters.

Class neqsim.process.equipment.pipeline.TransientWellbore.TransientSnapshot

class TransientSnapshot extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

depths

double[] depths

Depth array in meters (from top = 0 to bottom = wellDepth).

gasCompositions

Map<Integer, Map<String,Double>> gasCompositions

Gas phase composition at each depth: segment index to (component name to mole fraction).

gasFraction

double[] gasFraction

Gas phase mole fraction at each depth (0 = all liquid, 1 = all gas).

numberOfPhases

int[] numberOfPhases

Number of phases at each depth.

pressures

double[] pressures

Pressure array in bara at each depth.

temperatures

double[] temperatures

Temperature array in Kelvin at each depth.

timeHours

double timeHours

Simulation time in hours.

Class neqsim.process.equipment.pipeline.TubingPerformance

class TubingPerformance extends Pipeline implements Serializable

serialVersionUID:

1L

Serialized Fields

bottomholeTemperature

double bottomholeTemperature

correlationType

TubingPerformance.CorrelationType correlationType

diameter

double diameter

formationThermalConductivity

double formationThermalConductivity

geothermalGradient

double geothermalGradient

inclination

double inclination

length

double length

numberOfSegments

int numberOfSegments

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

pressureDrop

double pressureDrop

productionTime

double productionTime

roughness

double roughness

surfaceTemperature

double surfaceTemperature

temperatureModel

TubingPerformance.TemperatureModel temperatureModel

wellheadPressure

double wellheadPressure

Class neqsim.process.equipment.pipeline.TwoFluidPipe

class TwoFluidPipe extends Pipeline implements Serializable

serialVersionUID:

1001L

Serialized Fields

accumulationTracker

LiquidAccumulationTracker accumulationTracker

Liquid accumulation tracker.

adaptiveMaxPressure

double adaptiveMaxPressure

Maximum pressure allowed before adaptive dt reduction triggers (Pa). Default 1000 bara.

adaptiveMaxPressureChangeRatio

double adaptiveMaxPressureChangeRatio

Maximum allowed pressure change ratio per sub-step before triggering dt reduction. Default 0.2 (200% change per sub-step — catches genuine blow-up, not normal transient dynamics).

annularEntrainmentFraction

double annularEntrainmentFraction

Entrainment fraction in annular flow.

Fraction of liquid entrained as droplets in the gas core. Affects the distribution between film flow and droplet flow in annular regime. OLGA uses Ishii-Mishima correlation.

cflNumber

double cflNumber

CFL number for time stepping (0 < CFL < 1).

countedOutletSlugs

Set<Integer> countedOutletSlugs

Track which slugs have already been counted at outlet (by slug ID).

currentStep

int currentStep

Current step count.

diameter

double diameter

Pipe inner diameter (m).

dx

double dx

Minimum spatial step size across all sections (m). Used for CFL calculation. Equal to uniform dx when sectionLengths is null.

elevationProfile

double[] elevationProfile

Elevation profile at each section (m).

enableAdaptiveTimestepping

boolean enableAdaptiveTimestepping

Enable adaptive timestepping that detects instability and reduces dt automatically.

When enabled, the solver: (1) recomputes CFL-stable dt each sub-step based on current velocities, (2) detects instability (diverging pressure/holdup) and halves dt with retry, (3) grows dt back toward the CFL limit when stable.

enableAnnularFilmModel

boolean enableAnnularFilmModel

Enable OLGA-style annular film model.

When enabled, uses OLGA's annular film model which accounts for: - Minimum film thickness on pipe wall - Liquid entrainment in gas core - Wave formation and droplet deposition

enableHeatTransfer

boolean enableHeatTransfer

Enable heat transfer from surroundings.

enableJouleThomson

boolean enableJouleThomson

Enable Joule-Thomson effect.

enableSevereSlugModel

boolean enableSevereSlugModel

Enable severe slugging detection and modeling.

Severe slugging occurs at riser bases when liquid periodically blocks gas flow. This cyclic phenomenon can cause large pressure and flow oscillations.

enableSlugTracking

boolean enableSlugTracking

Enable slug tracking.

enableTerrainTracking

boolean enableTerrainTracking

Enable full OLGA-style terrain tracking.

When enabled, uses OLGA's terrain tracking algorithm which: - Identifies all low points and high points - Tracks liquid accumulation in valleys - Models terrain-induced slugging - Handles severe slugging in risers

enforceMinimumSlip

boolean enforceMinimumSlip

Enable OLGA-style minimum slip constraint.

When enabled (default), enforces a minimum liquid holdup in gas-dominant stratified flow, matching OLGA behavior. When disabled, holdup can approach no-slip values at high velocities (Beggs-Brill style).

equations

TwoFluidConservationEquations equations

Conservation equations solver.

equivalentLengthFittings

double equivalentLengthFittings

Total equivalent length of fittings (m). Used when individual positions are not specified. The equivalent length is added to the total pipe length for friction calculation.

flowRegimeDetector

FlowRegimeDetector flowRegimeDetector

Flow regime detector.

flowRegimeHysteresis

double flowRegimeHysteresis

Flow regime transition hysteresis factor.

OLGA uses hysteresis to prevent rapid switching between flow regimes. A value of 0.1 means 10% hysteresis band around transition boundaries.

gasVelocityProfile

double[] gasVelocityProfile

Gas velocity profile (m/s).

heatTransferCoefficient

double heatTransferCoefficient

Heat transfer coefficient (W/(m²·K)).

heatTransferProfile

double[] heatTransferProfile

Heat transfer coefficient profile along pipe (W/(m²·K)).

hydrateFormationTemperature

double hydrateFormationTemperature

Hydrate formation temperature (K).

hydrateRiskSections

boolean[] hydrateRiskSections

Sections flagged for hydrate risk.

includeEnergyEquation

boolean includeEnergyEquation

Include energy equation.

includeMassTransfer

boolean includeMassTransfer

Include mass transfer (flash/condensation).

inletBCType

TwoFluidPipe.BoundaryCondition inletBCType

Inlet boundary condition type.

inletLossCoefficient

double inletLossCoefficient

Inlet loss coefficient. K-factor for inlet effects (sharp-edge inlet K ~ 0.5, bell-mouth K ~ 0.05).

inletMassFlow

double inletMassFlow

Inlet mass flow (kg/s) - used when inletBCType is CONSTANT_FLOW.

inletMassFlowSet

boolean inletMassFlowSet

Flag indicating if inlet mass flow was explicitly set.

inletPressure

double inletPressure

Inlet pressure (Pa) - used when inletBCType is CONSTANT_PRESSURE.

inletPressureSet

boolean inletPressureSet

Flag indicating if inlet pressure was explicitly set.

insulationType

TwoFluidPipe.InsulationType insulationType

Current insulation type.

isTransientMode

boolean isTransientMode

Flag indicating transient mode (inlet P is free, not fixed from stream).

lagrangianSlugTracker

LagrangianSlugTracker lagrangianSlugTracker

Lagrangian slug tracker (OLGA-style full tracking).

lastSlugArrivalTime

double lastSlugArrivalTime

length

double length

Total pipe length (m).

liquidFallbackCoefficient

double liquidFallbackCoefficient

Liquid fallback coefficient for uphill sections.

Controls how much liquid falls back in uphill sections when gas velocity is insufficient to carry liquid upward. Higher values mean more liquid accumulation. OLGA default ~0.3.

liquidHoldupProfile

double[] liquidHoldupProfile

Liquid holdup profile.

liquidVelocityProfile

double[] liquidVelocityProfile

Liquid velocity profile (m/s).

localLossKFactors

Map<Double,Double> localLossKFactors

K-factors for local losses (bends, valves, fittings) at specific positions. Key = position (m), Value = K-factor (dimensionless loss coefficient).

maxSimulationTime

double maxSimulationTime

Maximum simulation time (s).

maxSlugLengthAtOutlet

double maxSlugLengthAtOutlet

maxSlugVolumeAtOutlet

double maxSlugVolumeAtOutlet

minimumFilmThickness

double minimumFilmThickness

Minimum film thickness for annular flow (m).

In high gas velocity annular flow, OLGA maintains a minimum liquid film on the pipe wall. This prevents unrealistically low holdup predictions. Default 0.1mm based on typical measurements.

minimumLiquidHoldup

double minimumLiquidHoldup

Base minimum liquid holdup for stratified flow (OLGA-style constraint).

OLGA enforces a minimum holdup to prevent unrealistically low values at high gas velocities. This is based on the observation that even at high velocities, a thin liquid film remains on the pipe wall in stratified/annular flow.

The actual minimum applied is the maximum of:

• This base value (default 1%)
• A multiple of the no-slip holdup (lambdaL * minimumSlipFactor)

This ensures the minimum is physically reasonable for both lean gas (low liquid loading) and rich gas condensate (high liquid loading) systems.

Reference: Bendiksen et al. (1991) "The Dynamic Two-Fluid Model OLGA" - SPE Production Engineering

minimumSlipFactor

double minimumSlipFactor

Slip factor applied to no-slip holdup to calculate adaptive minimum.

The adaptive minimum holdup is calculated as: lambdaL * minimumSlipFactor. For gas-dominant systems, typical slip ratios range from 1.5-3.0. Default value of 2.0 means minimum holdup is twice the no-slip value, which accounts for liquid accumulation due to slip. This prevents the minimum from being unrealistically high for lean gas systems with very low liquid loading.

numberOf45DegreeBends

int numberOf45DegreeBends

Number of 45-degree bends. K-factor = 0.15-0.25 per bend typically.

numberOf90DegreeBends

int numberOf90DegreeBends

Number of 90-degree bends. K-factor = 0.3-0.5 per bend typically.

numberOfSections

int numberOfSections

Number of computational cells.

olgaModelType

TwoFluidPipe.OLGAModelType olgaModelType

Current OLGA model type. Default is FULL for best accuracy.

outletBCType

TwoFluidPipe.BoundaryCondition outletBCType

Outlet boundary condition type.

outletLossCoefficient

double outletLossCoefficient

Outlet loss coefficient. K-factor for outlet effects (sudden expansion K ~ 1.0).

outletPressure

double outletPressure

Outlet pressure (Pa).

outletPressureSet

boolean outletPressureSet

Flag indicating if outlet pressure was explicitly set.

outletSlugCount

int outletSlugCount

Outlet slug statistics.

pressureProfile

double[] pressureProfile

Pressure profile (Pa).

referenceFluid

SystemInterface referenceFluid

Reference fluid for flash calculations.

roughness

double roughness

Pipe wall roughness (m).

sectionLengths

double[] sectionLengths

Per-section lengths for non-uniform mesh (m). When null, all sections use uniform dx. Length must equal numberOfSections and sum to total pipe length.

sections

TwoFluidSection[] sections

Pipe sections with state.

simulationTime

double simulationTime

Current simulation time (s).

slugTracker

SlugTracker slugTracker

Slug tracker (simplified model).

slugTrackingMode

TwoFluidPipe.SlugTrackingMode slugTrackingMode

Current slug tracking mode.

soilThermalResistance

double soilThermalResistance

Soil/burial thermal resistance (m²·K/W).

ssFlashInterval

int ssFlashInterval

Flash calculation interval during steady-state iterations.

A TP-flash is performed for every section only every ssFlashInterval iterations. Reducing flash frequency from every iteration to every 5th cuts the dominant cost of the steady-state solver without significantly affecting accuracy.

ssMaxWallClockTime

double ssMaxWallClockTime

Maximum wall-clock time for the steady-state solver (seconds).

If the solver has not converged within this time, it stops with the best available profile and logs a warning. Prevents truly infinite run times for difficult configurations.

ssUnderRelaxation

double ssUnderRelaxation

Under-relaxation factor for steady-state pressure and holdup updates.

Values between 0 and 1. Lower values improve stability at the cost of slower convergence. Default 0.5; the solver ramps from 0.3 up to this value over the first iterations.

surfaceTemperature

double surfaceTemperature

Surface temperature for heat transfer (K).

surfaceTemperatureProfile

double[] surfaceTemperatureProfile

Surface temperature profile along pipe (K).

temperatureProfile

double[] temperatureProfile

Temperature profile (K).

terrainSlugCriticalHoldup

double terrainSlugCriticalHoldup

Critical holdup for terrain-induced slug initiation.

When liquid holdup in a low point exceeds this value, a terrain-induced slug is initiated. Default 0.6 based on OLGA recommendations.

thermalCalculator

MultilayerThermalCalculator thermalCalculator

Multi-layer thermal calculator for OLGA-style radial heat transfer.

thermodynamicUpdateInterval

int thermodynamicUpdateInterval

Update thermodynamics every N steps.

timeIntegrator

TimeIntegrator timeIntegrator

Time integrator.

totalSlugVolumeAtOutlet

double totalSlugVolumeAtOutlet

useAdaptiveMinimumOnly

boolean useAdaptiveMinimumOnly

Use only adaptive (correlation-based) minimum, without absolute floor.

When true, the minimum holdup is calculated purely from flow correlations (Beggs-Brill type) without enforcing the absolute minimumLiquidHoldup floor. This allows the model to predict very low holdups for lean gas systems where the physical holdup may be below 1%.

Default is true for better handling of lean gas systems.

useMultilayerThermalModel

boolean useMultilayerThermalModel

Enable multi-layer thermal model (vs simple U-value).

useOLGAFlowRegimeMap

boolean useOLGAFlowRegimeMap

Use OLGA flow regime map instead of Taitel-Dukler.

OLGA's flow regime map differs from Taitel-Dukler in several ways: - Different transition criteria for stratified wavy to slug - Accounts for pipe roughness effects - Better handling of inclined flow - Hysteresis in regime transitions

wallDensity

double wallDensity

Pipe wall density (kg/m³) - steel default.

wallHeatCapacity

double wallHeatCapacity

Pipe wall specific heat capacity (J/(kg·K)) - steel default.

wallTemperatureProfile

double[] wallTemperatureProfile

Pipe wall temperature profile (K).

wallThickness

double wallThickness

Pipe wall thickness (m).

waxAppearanceTemperature

double waxAppearanceTemperature

Wax appearance temperature (K).

waxRiskSections

boolean[] waxRiskSections

Sections flagged for wax risk.

Class neqsim.process.equipment.pipeline.TwoPhasePipeLine

class TwoPhasePipeLine extends Pipeline implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.pipeline.WaterHammerPipe

class WaterHammerPipe extends Pipeline implements Serializable

serialVersionUID:

1001L

Serialized Fields

area

double area

characteristicImpedance

double characteristicImpedance

courantNumber

double courantNumber

currentTime

double currentTime

diameter

double diameter

downstreamBoundary

WaterHammerPipe.BoundaryType downstreamBoundary

downstreamHead

double downstreamHead

elevationChange

double elevationChange

flow

double[] flow

flowOld

double[] flowOld

fluidDensity

double fluidDensity

fluidSoundSpeed

double fluidSoundSpeed

fluidViscosity

double fluidViscosity

frictionFactor

double frictionFactor

head

double[] head

headOld

double[] headOld

initialized

boolean initialized

length

double length

maxPressureEnvelope

double[] maxPressureEnvelope

minPressureEnvelope

double[] minPressureEnvelope

numberOfNodes

int numberOfNodes

pipeElasticModulus

double pipeElasticModulus

pipePoissonsRatio

double pipePoissonsRatio

pressureHistory

List<Double> pressureHistory

pressureProfile

double[] pressureProfile

roughness

double roughness

segmentLength

double segmentLength

timeHistory

List<Double> timeHistory

upstreamBoundary

WaterHammerPipe.BoundaryType upstreamBoundary

upstreamHead

double upstreamHead

valveCv

double valveCv

valveOpening

double valveOpening

velocityProfile

double[] velocityProfile

wallThickness

double wallThickness

waveSpeed

double waveSpeed

Package neqsim.process.equipment.pipeline.routing

Class neqsim.process.equipment.pipeline.routing.PipingRouteBuilder

class PipingRouteBuilder extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultHeatTransferMode

PipeBeggsAndBrills.HeatTransferMode defaultHeatTransferMode

defaultNumberOfIncrements

int defaultNumberOfIncrements

defaultPipeWallRoughnessMeters

double defaultPipeWallRoughnessMeters

minorLossFrictionFactor

double minorLossFrictionFactor

segments

List<PipingRouteBuilder.RouteSegment> segments

Class neqsim.process.equipment.pipeline.routing.PipingRouteBuilder.MinorLoss

class MinorLoss extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equivalentLengthRatio

double equivalentLengthRatio

fittingType

String fittingType

kValue

double kValue

Class neqsim.process.equipment.pipeline.routing.PipingRouteBuilder.RouteSegment

class RouteSegment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

elevationChangeMeters

double elevationChangeMeters

fromNode

String fromNode

lengthMeters

double lengthMeters

minorLosses

List<PipingRouteBuilder.MinorLoss> minorLosses

nominalDiameterMeters

double nominalDiameterMeters

pipeWallRoughnessMeters

double pipeWallRoughnessMeters

segmentId

String segmentId

sourceLength

double sourceLength

sourceNominalDiameter

double sourceNominalDiameter

toNode

String toNode

wallThicknessMeters

double wallThicknessMeters

Package neqsim.process.equipment.pipeline.twophasepipe

Class neqsim.process.equipment.pipeline.twophasepipe.DriftFluxModel

class DriftFluxModel extends Object implements Serializable

serialVersionUID:

1L

Class neqsim.process.equipment.pipeline.twophasepipe.DriftFluxModel.DriftFluxParameters

class DriftFluxParameters extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

C0

double C0

Distribution coefficient C_0.

driftVelocity

double driftVelocity

Drift velocity (m/s).

gasVelocity

double gasVelocity

Gas velocity (m/s).

liquidHoldup

double liquidHoldup

Liquid holdup.

liquidVelocity

double liquidVelocity

Liquid velocity (m/s).

slipRatio

double slipRatio

Slip ratio (v_G / v_L).

voidFraction

double voidFraction

Void fraction.

Class neqsim.process.equipment.pipeline.twophasepipe.DriftFluxModel.EnergyEquationResult

class EnergyEquationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

elevationWorkDeltaT

double elevationWorkDeltaT

Temperature change from elevation work (K).

frictionHeatingDeltaT

double frictionHeatingDeltaT

Temperature change from friction heating (K).

frictionHeatingPower

double frictionHeatingPower

Friction heating power (W).

heatTransferDeltaT

double heatTransferDeltaT

Temperature change from heat transfer to surroundings (K).

heatTransferRate

double heatTransferRate

Total heat transfer rate to surroundings (W).

jouleThomsonDeltaT

double jouleThomsonDeltaT

Temperature change from Joule-Thomson effect (K).

newTemperature

double newTemperature

New temperature after energy balance (K).

Class neqsim.process.equipment.pipeline.twophasepipe.EntrainmentDeposition

class EntrainmentDeposition extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

criticalReFilm

double criticalReFilm

Critical film Reynolds number for entrainment.

criticalWeber

double criticalWeber

Critical Weber number for entrainment onset.

depositionModel

EntrainmentDeposition.DepositionModel depositionModel

Current deposition model.

entrainmentModel

EntrainmentDeposition.EntrainmentModel entrainmentModel

Current entrainment model.

Class neqsim.process.equipment.pipeline.twophasepipe.EntrainmentDeposition.EntrainmentResult

class EntrainmentResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

depositionRate

double depositionRate

Deposition rate (kg/m²/s).

dropletConcentration

double dropletConcentration

Droplet concentration in gas core (kg/m³).

dropletDiameter

double dropletDiameter

Sauter mean diameter of droplets (m).

entrainmentFraction

double entrainmentFraction

Entrainment fraction (fraction of liquid entrained).

entrainmentRate

double entrainmentRate

Entrainment rate (kg/m²/s).

filmReynoldsNumber

double filmReynoldsNumber

Film Reynolds number.

isEntraining

boolean isEntraining

Whether entrainment is occurring.

netTransferRate

double netTransferRate

Net mass transfer rate, positive when entrainment > deposition (kg/m²/s).

Class neqsim.process.equipment.pipeline.twophasepipe.FlashTable

class FlashTable extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

dP

double dP

Pressure step size.

dT

double dT

Temperature step size.

gasCompressibility

double[][] gasCompressibility

gasCp

double[][] gasCp

gasDensity

double[][] gasDensity

gasEnthalpy

double[][] gasEnthalpy

gasSoundSpeed

double[][] gasSoundSpeed

gasVaporFraction

double[][] gasVaporFraction

gasViscosity

double[][] gasViscosity

isBuilt

boolean isBuilt

Flag indicating table is built.

liquidCompressibility

double[][] liquidCompressibility

liquidCp

double[][] liquidCp

liquidDensity

double[][] liquidDensity

liquidEnthalpy

double[][] liquidEnthalpy

liquidSoundSpeed

double[][] liquidSoundSpeed

liquidViscosity

double[][] liquidViscosity

nP

int nP

Number of pressure points.

nT

int nT

Number of temperature points.

pMax

double pMax

Maximum pressure (Pa).

pMin

double pMin

Minimum pressure (Pa).

pressures

double[] pressures

Pressure grid points (Pa).

surfaceTension

double[][] surfaceTension

temperatures

double[] temperatures

Temperature grid points (K).

tMax

double tMax

Maximum temperature (K).

tMin

double tMin

Minimum temperature (K).

Class neqsim.process.equipment.pipeline.twophasepipe.FlowRegimeDetector

class FlowRegimeDetector extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

detectionMethod

FlowRegimeDetector.DetectionMethod detectionMethod

Current detection method.

Class neqsim.process.equipment.pipeline.twophasepipe.LagrangianSlugTracker

class LagrangianSlugTracker extends Object implements Serializable

serialVersionUID:

2L

Serialized Fields

averageSlugLength

double averageSlugLength

Average slug length (m).

baseSlugHoldup

double baseSlugHoldup

Base holdup in slug body.

enableInletSlugGeneration

boolean enableInletSlugGeneration

Enable hydrodynamic slug generation at inlet.

enableStochasticInitiation

boolean enableStochasticInitiation

Enable random/stochastic slug initiation.

enableTerrainSlugGeneration

boolean enableTerrainSlugGeneration

Enable terrain-induced slug generation.

enableWakeEffects

boolean enableWakeEffects

Enable wake interaction between slugs.

initialSlugLengthDiameters

double initialSlugLengthDiameters

Initial slug length at generation (diameters).

initiationHoldupThreshold

double initiationHoldupThreshold

Minimum liquid holdup for slug initiation.

inletSlugFrequency

double inletSlugFrequency

Slug frequency at inlet (1/s).

lastOutletArrivalTime

double lastOutletArrivalTime

Time of last slug arrival at outlet (s).

maxObservedSlugLength

double maxObservedSlugLength

Maximum slug length observed (m).

maxSlugLengthDiameters

double maxSlugLengthDiameters

Maximum slug length (diameters).

maxSlugVolumeAtOutlet

double maxSlugVolumeAtOutlet

Maximum slug volume at outlet (m³).

maxWakeAcceleration

double maxWakeAcceleration

Maximum wake acceleration factor.

mergeDistanceThreshold

double mergeDistanceThreshold

Distance threshold for slug merging (m).

minFilmHoldup

double minFilmHoldup

Minimum holdup in film region.

minSlugLengthDiameters

double minSlugLengthDiameters

Minimum stable slug length (diameters).

outletInterArrivalTimes

List<Double> outletInterArrivalTimes

List of inter-arrival times at outlet (s).

outletSlugFrequency

double outletSlugFrequency

Slug frequency at outlet (1/s).

outletSlugLengths

List<Double> outletSlugLengths

List of slug lengths at outlet for distribution.

outletSlugVolumes

List<Double> outletSlugVolumes

List of slug volumes at outlet.

random

Random random

Random number generator for stochastic initiation.

referenceMixtureVelocity

double referenceMixtureVelocity

Reference mixture velocity (m/s).

simulationTime

double simulationTime

Simulation time for statistics (s).

slugIdCounter

int slugIdCounter

Counter for slug IDs.

slugs

List<LagrangianSlugTracker.SlugBubbleUnit> slugs

List of active slugs in the pipeline.

timeSinceLastInletSlug

double timeSinceLastInletSlug

Time since last inlet slug generation (s).

totalMassBorrowed

double totalMassBorrowed

Total mass borrowed from Eulerian field (kg).

totalMassReturned

double totalMassReturned

Total mass returned to Eulerian field (kg).

totalSlugsDissipated

int totalSlugsDissipated

Total slugs dissipated.

totalSlugsExited

int totalSlugsExited

Total slugs exited at outlet.

totalSlugsGenerated

int totalSlugsGenerated

Total slugs generated.

totalSlugsMerged

int totalSlugsMerged

Total slugs merged.

wakeLengthDiameters

double wakeLengthDiameters

Wake length behind slug (diameters).

Class neqsim.process.equipment.pipeline.twophasepipe.LagrangianSlugTracker.SlugBubbleUnit

class SlugBubbleUnit extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

age

double age

Age since creation (s).

bubbleLength

double bubbleLength

Length of Taylor bubble / film region behind tail (m).

bubbleNoseVelocity

double bubbleNoseVelocity

Taylor bubble nose velocity (m/s).

distanceToPrecedingSlug

double distanceToPrecedingSlug

Distance to preceding slug's tail (m).

distanceTraveled

double distanceTraveled

Distance traveled since creation (m).

filmHoldup

double filmHoldup

Liquid holdup in film region (0.01-0.5).

filmLiquidVolume

double filmLiquidVolume

Liquid volume in film region (m³).

filmVelocity

double filmVelocity

Film velocity behind slug (m/s).

frontPosition

double frontPosition

Position of slug front (m from inlet).

frontVelocity

double frontVelocity

Slug front (nose) velocity (m/s).

hasExited

boolean hasExited

Has this slug reached outlet.

id

int id

Unique slug identifier.

inWakeRegion

boolean inWakeRegion

Is this slug in wake of preceding slug.

isDecaying

boolean isDecaying

Is slug decaying/dissipating.

isGrowing

boolean isGrowing

Is slug currently growing.

isTerrainInduced

boolean isTerrainInduced

Is this a terrain-induced slug.

localArea

double localArea

Pipe area at current location (m²).

localDiameter

double localDiameter

Pipe diameter at current location (m).

localInclination

double localInclination

Local pipe inclination (radians).

netMassRate

double netMassRate

Net mass change rate (kg/s).

pickupRate

double pickupRate

Rate of liquid pickup at front (kg/s).

sheddingRate

double sheddingRate

Rate of liquid shedding at tail (kg/s).

slugHoldup

double slugHoldup

Liquid holdup in slug body (0.5-1.0).

slugLength

double slugLength

Length of liquid slug body (m).

slugLiquidMass

double slugLiquidMass

Liquid mass in slug body (kg).

slugLiquidVelocity

double slugLiquidVelocity

Liquid velocity in slug body (m/s).

slugLiquidVolume

double slugLiquidVolume

Liquid volume in slug body (m³).

source

LagrangianSlugTracker.SlugSource source

Generation source: INLET, TERRAIN, INSTABILITY.

tailPosition

double tailPosition

Position of slug tail (m from inlet).

tailVelocity

double tailVelocity

Slug tail velocity (m/s).

wakeCoefficient

double wakeCoefficient

Wake coefficient (1.0 = no wake, >1.0 = accelerated).

Class neqsim.process.equipment.pipeline.twophasepipe.LiquidAccumulationTracker

class LiquidAccumulationTracker extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

accumulationZones

List<LiquidAccumulationTracker.AccumulationZone> accumulationZones

criticalHoldup

double criticalHoldup

drainageCoefficient

double drainageCoefficient

Class neqsim.process.equipment.pipeline.twophasepipe.LiquidAccumulationTracker.AccumulationZone

class AccumulationZone extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

endPosition

double endPosition

End position (m).

isActive

boolean isActive

Is zone actively accumulating.

isOverflowing

boolean isOverflowing

Is zone at capacity (will slug out).

liquidLevel

double liquidLevel

Liquid level in the low point (m).

liquidVolume

double liquidVolume

Volume of accumulated liquid (m³).

maxVolume

double maxVolume

Maximum volume capacity (m³).

netInflowRate

double netInflowRate

Net inflow rate (m³/s).

outflowRate

double outflowRate

Outflow rate when slugging (m³/s).

sectionIndices

List<Integer> sectionIndices

Associated pipe sections.

startPosition

double startPosition

Start position (m).

timeSinceSlug

double timeSinceSlug

Time since last slug-out (s).

Class neqsim.process.equipment.pipeline.twophasepipe.LiquidAccumulationTracker.SlugCharacteristics

class SlugCharacteristics extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

frontPosition

double frontPosition

Front position (m from inlet).

holdup

double holdup

Liquid holdup in slug (typically 0.8-1.0).

isTerrainInduced

boolean isTerrainInduced

Is this a terrain-induced slug.

length

double length

Slug length (m).

tailPosition

double tailPosition

Tail position (m from inlet).

velocity

double velocity

Slug translational velocity (m/s).

volume

double volume

Slug liquid volume (m³).

Class neqsim.process.equipment.pipeline.twophasepipe.PipeSection

class PipeSection extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

accumulatedLiquidVolume

double accumulatedLiquidVolume

area

double area

diameter

double diameter

elevation

double elevation

flowRegime

PipeSection.FlowRegime flowRegime

frictionPressureGradient

double frictionPressureGradient

gasDensity

double gasDensity

gasEnthalpy

double gasEnthalpy

gasHoldup

double gasHoldup

gasSoundSpeed

double gasSoundSpeed

gasVelocity

double gasVelocity

gasViscosity

double gasViscosity

gravityPressureGradient

double gravityPressureGradient

inclination

double inclination

isHighPoint

boolean isHighPoint

isInSlugBody

boolean isInSlugBody

isInSlugBubble

boolean isInSlugBubble

isLowPoint

boolean isLowPoint

length

double length

liquidDensity

double liquidDensity

liquidEnthalpy

double liquidEnthalpy

liquidHoldup

double liquidHoldup

liquidLevel

double liquidLevel

liquidSoundSpeed

double liquidSoundSpeed

liquidVelocity

double liquidVelocity

liquidViscosity

double liquidViscosity

massTransferRate

double massTransferRate

mixtureDensity

double mixtureDensity

mixtureHeatCapacity

double mixtureHeatCapacity

mixtureVelocity

double mixtureVelocity

position

double position

pressure

double pressure

roughness

double roughness

slugHoldup

double slugHoldup

superficialGasVelocity

double superficialGasVelocity

superficialLiquidVelocity

double superficialLiquidVelocity

surfaceTension

double surfaceTension

temperature

double temperature

Class neqsim.process.equipment.pipeline.twophasepipe.SlugTracker

class SlugTracker extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

averageSlugLength

double averageSlugLength

maxSlugLength

double maxSlugLength

minimumSlugLength

double minimumSlugLength

referenceVelocity

double referenceVelocity

Reference velocity from inlet for fallback when sections have near-zero velocity.

slugFrequency

double slugFrequency

slugHoldupBody

double slugHoldupBody

slugHoldupFilm

double slugHoldupFilm

slugMergeDistance

double slugMergeDistance

slugs

List<SlugTracker.SlugUnit> slugs

totalMassBorrowedFromEulerian

double totalMassBorrowedFromEulerian

Cumulative liquid mass borrowed from Eulerian cells when slugs are created (kg). This enables mass conservation verification between Lagrangian and Eulerian representations.

totalMassReturnedToEulerian

double totalMassReturnedToEulerian

Cumulative liquid mass returned to Eulerian cells from exiting/dissipating slugs (kg). This enables mass conservation verification between Lagrangian and Eulerian representations.

totalSlugsGenerated

int totalSlugsGenerated

totalSlugsMerged

int totalSlugsMerged

Class neqsim.process.equipment.pipeline.twophasepipe.SlugTracker.SlugUnit

class SlugUnit extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

age

double age

Time slug has existed (s).

bodyHoldup

double bodyHoldup

Liquid holdup in slug body.

borrowedFromSections

int[] borrowedFromSections

Array of section indices from which liquid mass was borrowed. Used to return mass to appropriate cells when slug exits or dissipates.

borrowedLiquidMass

double borrowedLiquidMass

Liquid mass borrowed from Eulerian cells (kg). This tracks the mass that was "collected" from the stratified film region to form this slug, enabling proper mass conservation reconciliation between Lagrangian and Eulerian solvers.

bubbleLength

double bubbleLength

Length of Taylor bubble / film region (m).

filmHoldup

double filmHoldup

Liquid holdup in film region.

frontPosition

double frontPosition

Position of slug front (m from inlet).

frontVelocity

double frontVelocity

Slug front velocity (m/s).

id

int id

Unique slug identifier.

isDecaying

boolean isDecaying

Is this slug decaying.

isGrowing

boolean isGrowing

Is this slug actively growing.

isTerrainInduced

boolean isTerrainInduced

Is this a terrain-induced slug.

liquidVolume

double liquidVolume

Liquid volume in slug (m³).

localInclination

double localInclination

Local pipe inclination at slug front.

slugBodyLength

double slugBodyLength

Length of liquid slug body (m).

tailPosition

double tailPosition

Position of slug tail (m from inlet).

tailVelocity

double tailVelocity

Slug tail velocity (m/s).

Class neqsim.process.equipment.pipeline.twophasepipe.ThermodynamicCoupling

class ThermodynamicCoupling extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

flashTable

FlashTable flashTable

Pre-computed flash table (optional).

flashTolerance

double flashTolerance

Flash tolerance for convergence.

maxFlashIterations

int maxFlashIterations

Maximum flash iterations.

maxPressure

double maxPressure

Maximum pressure for valid flash (Pa).

maxTemperature

double maxTemperature

Maximum temperature for valid flash (K).

minPressure

double minPressure

Minimum pressure for valid flash (Pa).

minTemperature

double minTemperature

Minimum temperature for valid flash (K).

referenceFluid

SystemInterface referenceFluid

Reference fluid system for flash calculations.

useFlashTable

boolean useFlashTable

Whether to use table interpolation instead of rigorous flash.

Class neqsim.process.equipment.pipeline.twophasepipe.ThermodynamicCoupling.ThermoProperties

class ThermoProperties extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

converged

boolean converged

Flash convergence flag.

errorMessage

String errorMessage

Error message if flash failed.

gasCompressibility

double gasCompressibility

Gas compressibility factor Z.

gasCp

double gasCp

Gas specific heat at constant pressure Cp (J/(kg·K)).

gasDensity

double gasDensity

Gas density (kg/m³).

gasEnthalpy

double gasEnthalpy

Gas specific enthalpy (J/kg).

gasMolarMass

double gasMolarMass

Gas molecular weight (kg/kmol).

gasSoundSpeed

double gasSoundSpeed

Gas sound speed (m/s).

gasThermalConductivity

double gasThermalConductivity

Gas thermal conductivity (W/(m·K)).

gasVaporFraction

double gasVaporFraction

Gas mole fraction.

gasViscosity

double gasViscosity

Gas dynamic viscosity (Pa·s).

liquidCompressibility

double liquidCompressibility

Liquid compressibility factor Z.

liquidCp

double liquidCp

Liquid specific heat at constant pressure Cp (J/(kg·K)).

liquidDensity

double liquidDensity

Liquid density (kg/m³).

liquidEnthalpy

double liquidEnthalpy

Liquid specific enthalpy (J/kg).

liquidFraction

double liquidFraction

Liquid mole fraction.

liquidMolarMass

double liquidMolarMass

Liquid molecular weight (kg/kmol).

liquidSoundSpeed

double liquidSoundSpeed

Liquid sound speed (m/s).

liquidThermalConductivity

double liquidThermalConductivity

Liquid thermal conductivity (W/(m·K)).

liquidViscosity

double liquidViscosity

Liquid dynamic viscosity (Pa·s).

surfaceTension

double surfaceTension

Gas-liquid surface tension (N/m).

Class neqsim.process.equipment.pipeline.twophasepipe.ThreeFluidConservationEquations

class ThreeFluidConservationEquations extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

enableHeatTransfer

boolean enableHeatTransfer

Enable heat transfer from surroundings.

geometryCalc

GeometryCalculator geometryCalc

Geometry calculator for stratified flow.

heatTransferCoefficient

double heatTransferCoefficient

Heat transfer coefficient (W/(m²·K)).

interfacialFriction

InterfacialFriction interfacialFriction

Interfacial friction calculator.

surfaceTemperature

double surfaceTemperature

Surface temperature for heat transfer (K).

wallFriction

WallFriction wallFriction

Wall friction calculator.

Class neqsim.process.equipment.pipeline.twophasepipe.ThreeFluidConservationEquations.ThreeFluidRHS

class ThreeFluidRHS extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

energy

double energy

Mixture energy RHS: d(E)/dt.

gasMass

double gasMass

Gas mass RHS: d(αg ρg A)/dt.

gasMomentum

double gasMomentum

Gas momentum RHS: d(Mg)/dt.

gasOilInterfacialShear

double gasOilInterfacialShear

Gas-oil interfacial shear stress (Pa).

gasWallShear

double gasWallShear

Gas wall shear stress (Pa).

oilMass

double oilMass

Oil mass RHS: d(αo ρo A)/dt.

oilMomentum

double oilMomentum

Oil momentum RHS: d(Mo)/dt.

oilWallShear

double oilWallShear

Oil wall shear stress (Pa).

oilWaterInterfacialShear

double oilWaterInterfacialShear

Oil-water interfacial shear stress (Pa).

waterMass

double waterMass

Water mass RHS: d(αw ρw A)/dt.

waterMomentum

double waterMomentum

Water momentum RHS: d(Mw)/dt.

waterWallShear

double waterWallShear

Water wall shear stress (Pa).

Class neqsim.process.equipment.pipeline.twophasepipe.ThreeFluidSection

class ThreeFluidSection extends TwoFluidSection implements Serializable

serialVersionUID:

1L

Serialized Fields

gasOilInterfacialWidth

double gasOilInterfacialWidth

gasOilSurfaceTension

double gasOilSurfaceTension

gasWaterSurfaceTension

double gasWaterSurfaceTension

oilArea

double oilArea

oilDensity

double oilDensity

oilEnthalpy

double oilEnthalpy

oilEvaporationRate

double oilEvaporationRate

oilHoldup

double oilHoldup

oilLevel

double oilLevel

oilMassPerLength

double oilMassPerLength

oilMomentumPerLength

double oilMomentumPerLength

oilVelocity

double oilVelocity

oilViscosity

double oilViscosity

oilWaterInterfacialWidth

double oilWaterInterfacialWidth

oilWaterSurfaceTension

double oilWaterSurfaceTension

oilWettedPerimeter

double oilWettedPerimeter

waterArea

double waterArea

waterCut

double waterCut

waterDensity

double waterDensity

waterEnthalpy

double waterEnthalpy

waterEvaporationRate

double waterEvaporationRate

waterHoldup

double waterHoldup

waterLevel

double waterLevel

waterMassPerLength

double waterMassPerLength

waterMomentumPerLength

double waterMomentumPerLength

waterVelocity

double waterVelocity

waterViscosity

double waterViscosity

waterWettedPerimeter

double waterWettedPerimeter

Class neqsim.process.equipment.pipeline.twophasepipe.TransientPipe

class TransientPipe extends TwoPortEquipment implements Serializable

serialVersionUID:

1L

Serialized Fields

accumulationTracker

LiquidAccumulationTracker accumulationTracker

ambientTemperature

double ambientTemperature

burialDepth

double burialDepth

Burial depth in meters.

buried

boolean buried

Flag for buried pipe.

cflNumber

double cflNumber

coatingConductivity

double coatingConductivity

Coating thermal conductivity in W/(m·K).

coatingThickness

double coatingThickness

Coating thickness in meters.

corrosionAllowance

double corrosionAllowance

currentStep

int currentStep

designCode

String designCode

designPressure

double designPressure

designTemperature

double designTemperature

diameter

double diameter

driftFluxModel

DriftFluxModel driftFluxModel

dt

double dt

dx

double dx

elevationProfile

double[] elevationProfile

energyResidual

double energyResidual

flowRegimeDetector

FlowRegimeDetector flowRegimeDetector

gasVelocityProfile

double[] gasVelocityProfile

historyIndex

int historyIndex

historyInterval

int historyInterval

inclinationProfile

double[] inclinationProfile

includeHeatTransfer

boolean includeHeatTransfer

inletBCType

TransientPipe.BoundaryCondition inletBCType

inletMassFlow

double inletMassFlow

inletPressureValue

double inletPressureValue

innerHeatTransferCoefficient

double innerHeatTransferCoefficient

Inner heat transfer coefficient.

insulationConductivity

double insulationConductivity

Insulation thermal conductivity in W/(m·K).

insulationThickness

double insulationThickness

Insulation thickness in meters.

insulationType

String insulationType

Insulation type.

isConverged

boolean isConverged

jouleThomsonCoeff

double jouleThomsonCoeff

length

double length

liquidHoldupProfile

double[] liquidHoldupProfile

liquidVelocityProfile

double[] liquidVelocityProfile

locationClass

int locationClass

massResidual

double massResidual

materialGrade

String materialGrade

maxSimulationTime

double maxSimulationTime

maxTimeStep

double maxTimeStep

minTimeStep

double minTimeStep

numberOfSections

int numberOfSections

outerHeatTransferCoefficient

double outerHeatTransferCoefficient

Outer heat transfer coefficient.

outletBCType

TransientPipe.BoundaryCondition outletBCType

outletMassFlow

double outletMassFlow

outletPressureExplicitlySet

boolean outletPressureExplicitlySet

outletPressureValue

double outletPressureValue

overallHeatTransferCoeff

double overallHeatTransferCoeff

pipeElasticity

double pipeElasticity

pipeMaterial

String pipeMaterial

Pipe material.

pipeSchedule

String pipeSchedule

Pipe schedule.

pipeWallConductivity

double pipeWallConductivity

Pipe wall thermal conductivity in W/(m·K).

pressureHistory

double[][] pressureHistory

pressureProfile

double[] pressureProfile

referenceFluid

SystemInterface referenceFluid

roughness

double roughness

sections

PipeSection[] sections

simulationTime

double simulationTime

slugTracker

SlugTracker slugTracker

soilConductivity

double soilConductivity

Soil thermal conductivity.

temperatureProfile

double[] temperatureProfile

thermodynamicUpdateInterval

int thermodynamicUpdateInterval

totalTimeSteps

int totalTimeSteps

updateThermodynamics

boolean updateThermodynamics

wallThickness

double wallThickness

Class neqsim.process.equipment.pipeline.twophasepipe.TwoFluidConservationEquations

class TwoFluidConservationEquations extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

dt

double dt

Timestep for virtual mass force calculation.

enableHeatTransfer

boolean enableHeatTransfer

Enable heat transfer to surroundings.

enableVirtualMassForce

boolean enableVirtualMassForce

Enable virtual mass force term in momentum equations. The virtual mass force accounts for the inertia of the displaced phase during rapid acceleration/deceleration. Reference: Drew, D.A. and Lahey, R.T. (1987), "The virtual mass and lift force on a sphere in rotating and straining inviscid flow", Int. J. Multiphase Flow.

enableWaterOilSlip

boolean enableWaterOilSlip

Enable water-oil velocity slip (7-equation model). When true, oil and water have separate momentum equations allowing different velocities.

flowRegimeDetector

FlowRegimeDetector flowRegimeDetector

fluxCalculator

AUSMPlusFluxCalculator fluxCalculator

geometryCalc

GeometryCalculator geometryCalc

heatTransferCoefficient

double heatTransferCoefficient

Heat transfer coefficient (W/(m²·K)).

includeEnergyEquation

boolean includeEnergyEquation

includeMassTransfer

boolean includeMassTransfer

interfacialFriction

InterfacialFriction interfacialFriction

massTransferCoefficient

double massTransferCoefficient

prevGasVelocities

double[] prevGasVelocities

Previous velocities for virtual mass force calculation (stored between timesteps).

prevLiquidVelocities

double[] prevLiquidVelocities

Previous velocities for virtual mass force calculation (stored between timesteps).

reconstructor

MUSCLReconstructor reconstructor

surfaceTemperature

double surfaceTemperature

Surface temperature for heat transfer (K).

virtualMassCoefficient

double virtualMassCoefficient

Virtual mass coefficient. For spherical bubbles/droplets, C_vm = 0.5 (theoretical). Values 0.3-0.7 are common in practice.

wallFriction

WallFriction wallFriction

Class neqsim.process.equipment.pipeline.twophasepipe.TwoFluidSection

class TwoFluidSection extends PipeSection implements Serializable

serialVersionUID:

1L

Serialized Fields

accumulatedLiquidVolume

double accumulatedLiquidVolume

Accumulated liquid volume in low point (m³).

energyPerLength

double energyPerLength

Mixture energy per unit length: (α_g*ρ_g*E_g + α_L*ρ_L*E_L) * A (J/m).

energySource

double energySource

Energy source (W/m). Heat transfer + friction work.

gasHydraulicDiameter

double gasHydraulicDiameter

Gas hydraulic diameter (m).

gasMassPerLength

double gasMassPerLength

Gas mass per unit length: α_g * ρ_g * A (kg/m).

gasMassSource

double gasMassSource

Gas mass source (kg/(m·s)). From liquid evaporation.

gasMomentumPerLength

double gasMomentumPerLength

Gas momentum per unit length: α_g * ρ_g * v_g * A (kg/s).

gasMomentumSource

double gasMomentumSource

Gas momentum source (N/m). Wall + interfacial + gravity.

gasWallShear

double gasWallShear

Gas wall shear stress (Pa).

gasWettedPerimeter

double gasWettedPerimeter

Gas wetted perimeter (m).

interfacialShear

double interfacialShear

Interfacial shear stress (Pa). Positive = gas pushes liquid.

interfacialWidth

double interfacialWidth

Interfacial width/perimeter (m).

liquidHydraulicDiameter

double liquidHydraulicDiameter

Liquid hydraulic diameter (m).

liquidMassPerLength

double liquidMassPerLength

Liquid mass per unit length: α_L * ρ_L * A (kg/m).

liquidMassSource

double liquidMassSource

Liquid mass source (kg/(m·s)). From gas condensation.

liquidMomentumPerLength

double liquidMomentumPerLength

Liquid momentum per unit length: α_L * ρ_L * v_L * A (kg/s).

liquidMomentumSource

double liquidMomentumSource

Liquid momentum source (N/m). Wall + interfacial + gravity.

liquidWallShear

double liquidWallShear

Liquid wall shear stress (Pa).

liquidWettedPerimeter

double liquidWettedPerimeter

Liquid wetted perimeter (m).

oilDensity

double oilDensity

Oil density (kg/m³).

oilFractionInLiquid

double oilFractionInLiquid

Oil holdup within liquid phase (oil/(oil+water)).

oilHoldup

double oilHoldup

Oil holdup (fraction of pipe area). α_o = α_L - α_w

oilMassPerLength

double oilMassPerLength

Oil mass per unit length: α_o * ρ_o * A (kg/m).

oilMomentumPerLength

double oilMomentumPerLength

Oil momentum per unit length: α_o * ρ_o * v_o * A (kg/s).

oilVelocity

double oilVelocity

Oil velocity (m/s).

oilViscosity

double oilViscosity

Oil viscosity (Pa·s).

oilWaterInterfacialTension

double oilWaterInterfacialTension

Oil-water interfacial tension (N/m). Defaults to typical crude-water value.

severeSlugPotential

boolean severeSlugPotential

Flag indicating severe slugging potential at this section (riser base).

stratifiedLiquidLevel

double stratifiedLiquidLevel

Liquid level for stratified flow (m).

terrainSlugPending

boolean terrainSlugPending

Flag indicating terrain-induced slug is pending at this section.

timeSinceTerrainSlug

double timeSinceTerrainSlug

Time since last terrain slug event (s).

waterCut

double waterCut

Water cut (water fraction of total liquid).

waterDensity

double waterDensity

Water density (kg/m³).

waterHoldup

double waterHoldup

Water holdup (fraction of pipe area). α_w

waterMassPerLength

double waterMassPerLength

Water mass per unit length: α_w * ρ_w * A (kg/m).

waterMomentumPerLength

double waterMomentumPerLength

Water momentum per unit length: α_w * ρ_w * v_w * A (kg/s).

waterVelocity

double waterVelocity

Water velocity (m/s).

waterViscosity

double waterViscosity

Water viscosity (Pa·s).

Package neqsim.process.equipment.pipeline.twophasepipe.closure

Class neqsim.process.equipment.pipeline.twophasepipe.closure.GeometryCalculator

class GeometryCalculator extends Object implements Serializable

serialVersionUID:

1L

Class neqsim.process.equipment.pipeline.twophasepipe.closure.GeometryCalculator.StratifiedGeometry

class StratifiedGeometry extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gasArea

double gasArea

Gas cross-sectional area (m²).

gasHydraulicDiameter

double gasHydraulicDiameter

Gas hydraulic diameter (m).

gasWettedPerimeter

double gasWettedPerimeter

Wetted perimeter - gas contact with wall (m).

interfacialWidth

double interfacialWidth

Interfacial width - gas-liquid interface length (m).

liquidAngle

double liquidAngle

Half-angle subtended by liquid at pipe center (radians).

liquidArea

double liquidArea

Liquid cross-sectional area (m²).

liquidHoldup

double liquidHoldup

Liquid holdup (volume fraction).

liquidHydraulicDiameter

double liquidHydraulicDiameter

Liquid hydraulic diameter (m).

liquidLevel

double liquidLevel

Liquid level from bottom of pipe (m).

liquidWettedPerimeter

double liquidWettedPerimeter

Wetted perimeter - liquid contact with wall (m).

Class neqsim.process.equipment.pipeline.twophasepipe.closure.InterfacialFriction

class InterfacialFriction extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

geometryCalc

GeometryCalculator geometryCalc

Geometry calculator for stratified flow.

Class neqsim.process.equipment.pipeline.twophasepipe.closure.InterfacialFriction.InterfacialFrictionResult

class InterfacialFrictionResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

frictionFactor

double frictionFactor

Interfacial friction factor.

interfacialAreaPerLength

double interfacialAreaPerLength

Interfacial area per unit length (m²/m = m).

interfacialShear

double interfacialShear

Interfacial shear stress (Pa). Positive = gas pushes liquid.

slipVelocity

double slipVelocity

Slip velocity (v_G - v_L) (m/s).

Class neqsim.process.equipment.pipeline.twophasepipe.closure.OilWaterFlowRegimeDetector

class OilWaterFlowRegimeDetector extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

criticalWeber

double criticalWeber

Critical Weber number for droplet breakup (Hinze, 1955).

inversionConstant

double inversionConstant

Empirical constant for inversion model (Decarre and Fabre, 1997).

Class neqsim.process.equipment.pipeline.twophasepipe.closure.WallFriction

class WallFriction extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

defaultRoughness

double defaultRoughness

Default pipe roughness (m).

geometryCalc

GeometryCalculator geometryCalc

Geometry calculator for stratified flow.

Class neqsim.process.equipment.pipeline.twophasepipe.closure.WallFriction.WallFrictionResult

class WallFrictionResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gasFrictionFactor

double gasFrictionFactor

Gas Fanning friction factor.

gasReynolds

double gasReynolds

Gas Reynolds number.

gasWallShear

double gasWallShear

Gas wall shear stress (Pa).

liquidFrictionFactor

double liquidFrictionFactor

Liquid Fanning friction factor.

liquidReynolds

double liquidReynolds

Liquid Reynolds number.

liquidWallShear

double liquidWallShear

Liquid wall shear stress (Pa).

Package neqsim.process.equipment.pipeline.twophasepipe.numerics

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.AUSMPlusFluxCalculator

class AUSMPlusFluxCalculator extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alpha

double alpha

AUSM+ parameter α (typically 3/16 for AUSM+).

beta

double beta

AUSM+ parameter β (typically 1/8).

minSoundSpeed

double minSoundSpeed

Minimum sound speed to avoid division by zero.

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.AUSMPlusFluxCalculator.PhaseFlux

class PhaseFlux extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

energyFlux

double energyFlux

Energy flux: α * ρ * v * H (W/m² or J/(m²·s)).

holdupFlux

double holdupFlux

Holdup flux: α * v (m/s).

massFlux

double massFlux

Mass flux: α * ρ * v (kg/(m²·s)).

momentumFlux

double momentumFlux

Momentum flux: α * ρ * v² + α * P (Pa or N/m²).

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.AUSMPlusFluxCalculator.PhaseState

class PhaseState extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

density

double density

Density (kg/m³).

enthalpy

double enthalpy

Specific enthalpy (J/kg).

holdup

double holdup

Volume fraction (0-1).

pressure

double pressure

Pressure (Pa).

soundSpeed

double soundSpeed

Sound speed (m/s).

velocity

double velocity

Velocity (m/s).

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.AUSMPlusFluxCalculator.TwoFluidFlux

class TwoFluidFlux extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gasFlux

AUSMPlusFluxCalculator.PhaseFlux gasFlux

Gas phase fluxes.

interfaceMach

double interfaceMach

Interface Mach number (for diagnostics).

liquidFlux

AUSMPlusFluxCalculator.PhaseFlux liquidFlux

Liquid phase fluxes.

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.MUSCLReconstructor

class MUSCLReconstructor extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

limiterType

MUSCLReconstructor.SlopeLimiter limiterType

Current limiter type.

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.MUSCLReconstructor.ReconstructedPair

class ReconstructedPair extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

left

double left

Left state at interface (from cell i).

right

double right

Right state at interface (from cell i+1).

Class neqsim.process.equipment.pipeline.twophasepipe.numerics.TimeIntegrator

class TimeIntegrator extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

cellDensities

double[] cellDensities

Cell-averaged mixture densities for IMEX pressure solve. Set by caller before step.

cellSoundSpeeds

double[] cellSoundSpeeds

Cell-averaged sound speeds for IMEX pressure solve. Set by caller before step.

cflNumber

double cflNumber

CFL number for time step control (0 < CFL < 1).

currentDt

double currentDt

Current time step (s).

currentTime

double currentTime

Current simulation time (s).

imexDx

double imexDx

Cell size for IMEX pressure solve (m). Set by caller before step.

imexOutletPressure

double imexOutletPressure

Pressure boundary (Pa) at outlet for IMEX. Set by caller before step.

imexOutletPressureFixed

boolean imexOutletPressureFixed

Whether outlet pressure BC is fixed for IMEX.

maxTimeStep

double maxTimeStep

Maximum allowed time step (s).

method

TimeIntegrator.Method method

Current integration method.

minTimeStep

double minTimeStep

Minimum allowed time step (s).

Package neqsim.process.equipment.powergeneration

Class neqsim.process.equipment.powergeneration.CombinedCycleSystem

class CombinedCycleSystem extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Whether this equipment has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

combustionPressure

double combustionPressure

fuelEnergyInput

double fuelEnergyInput

gasTurbine

GasTurbine gasTurbine

gasTurbinePower

double gasTurbinePower

hrsg

HRSG hrsg

hrsgApproachTemperature

double hrsgApproachTemperature

hrsgEffectiveness

double hrsgEffectiveness

overallEfficiency

double overallEfficiency

ratedTotalPowerW

double ratedTotalPowerW

Rated (maximum) total power output in Watts. Used for capacity constraint calculations.

steamCondensorPressure

double steamCondensorPressure

steamPressure

double steamPressure

steamTemperature

double steamTemperature

steamTurbine

SteamTurbine steamTurbine

steamTurbineEfficiency

double steamTurbineEfficiency

steamTurbinePower

double steamTurbinePower

totalPower

double totalPower

Class neqsim.process.equipment.powergeneration.FuelCell

class FuelCell extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

efficiency

double efficiency

heatLoss

double heatLoss

oxidantStream

StreamInterface oxidantStream

power

double power

Class neqsim.process.equipment.powergeneration.GasTurbine

class GasTurbine extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

airCompressor

Compressor airCompressor

airGasRatio

double airGasRatio

airStream

StreamInterface airStream

autoSized

boolean autoSized

Whether this equipment has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

combustionpressure

double combustionpressure

compressorPower

double compressorPower

expanderPower

double expanderPower

heat

double heat

power

double power

ratedPowerW

double ratedPowerW

Rated (maximum) power output in Watts. Used for capacity constraint calculations.

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.powergeneration.HRSG

class HRSG extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

approachTemperature

double approachTemperature

autoSized

boolean autoSized

Whether this equipment has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

designHeatDutyW

double designHeatDutyW

Design (maximum) heat transfer duty in Watts. Used for capacity constraint calculations.

effectiveness

double effectiveness

feedWaterTemperature

double feedWaterTemperature

gasOutletTemperature

double gasOutletTemperature

heatTransferred

double heatTransferred

steamFlowRate

double steamFlowRate

steamPressure

double steamPressure

steamTemperature

double steamTemperature

Class neqsim.process.equipment.powergeneration.OffshoreEnergySystem

class OffshoreEnergySystem extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

batteryPowerDelivered

double batteryPowerDelivered

Battery power delivered [W].

batteryStorage

BatteryStorage batteryStorage

Battery storage system.

co2Avoided

double co2Avoided

CO2 avoided by using wind instead of gas [kg/hr].

co2EmissionFactor

double co2EmissionFactor

CO2 emission factor for gas turbine [kg CO2 / kWh].

co2Emissions

double co2Emissions

CO2 emissions from gas turbine [kg/hr].

dispatchHistory

List<Map<String,Double>> dispatchHistory

History of hourly dispatch for time-series analysis.

fuelConsumption

double fuelConsumption

Gas fuel consumption rate [kg/hr].

gasLHV

double gasLHV

Natural gas LHV [MJ/kg].

gasTurbineCapacity

double gasTurbineCapacity

Gas turbine rated capacity [W].

gasTurbineEfficiency

double gasTurbineEfficiency

Gas turbine electrical efficiency.

gasTurbineMinLoad

double gasTurbineMinLoad

Gas turbine minimum load fraction [0-1].

gasTurbinePowerDelivered

double gasTurbinePowerDelivered

Gas turbine power delivered [W].

powerDeficit

double powerDeficit

Total power deficit (unmet demand) [W].

solarPanel

SolarPanel solarPanel

Solar panel system.

solarPowerDelivered

double solarPowerDelivered

Solar power delivered [W].

timeStepHours

double timeStepHours

Time step for battery charge/discharge [hours].

totalPowerDemand

double totalPowerDemand

Total power demand [W].

windFarm

WindFarm windFarm

Wind farm for renewable power generation.

windPowerCurtailed

double windPowerCurtailed

Wind power curtailed [W].

windPowerDelivered

double windPowerDelivered

Wind power delivered to load [W].

windPowerToCharge

double windPowerToCharge

Wind power used to charge battery [W].

Class neqsim.process.equipment.powergeneration.SolarPanel

class SolarPanel extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

efficiency

double efficiency

irradiance

double irradiance

panelArea

double panelArea

power

double power

Class neqsim.process.equipment.powergeneration.SteamTurbine

class SteamTurbine extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Whether this equipment has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

isentropicEfficiency

double isentropicEfficiency

numberOfStages

int numberOfStages

outletPressure

double outletPressure

power

double power

ratedPowerW

double ratedPowerW

Rated (maximum) power output in Watts. Used for capacity constraint calculations.

Class neqsim.process.equipment.powergeneration.WindFarm

class WindFarm extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

airDensity

double airDensity

Air density at hub height [kg/m3].

airTemperature

double airTemperature

Air temperature [C] for density correction.

atmosphericPressure

double atmosphericPressure

Atmospheric pressure [Pa] for density correction.

availabilityFactor

double availabilityFactor

Availability factor [0-1], accounts for maintenance downtime.

capacityFactor

double capacityFactor

Calculated capacity factor [0-1].

currentTimeStep

int currentTimeStep

Current time step index for dynamic simulation.

cutInSpeed

double cutInSpeed

Cut-in wind speed [m/s].

cutOutSpeed

double cutOutSpeed

Cut-out wind speed [m/s].

electricalLossFactor

double electricalLossFactor

Electrical losses [0-1], cables, transformers, etc.

hubHeight

double hubHeight

Hub height above sea level [m].

maxPowerCoefficient

double maxPowerCoefficient

Maximum power coefficient (Betz limit is 0.593).

numberOfTurbines

int numberOfTurbines

Number of turbines in the farm.

power

double power

Calculated total farm power output [W].

powerTimeSeries

double[] powerTimeSeries

Time-series power output [W].

ratedPowerPerTurbine

double ratedPowerPerTurbine

Rated power per turbine [W].

ratedSpeed

double ratedSpeed

Rated wind speed [m/s].

rotorDiameter

double rotorDiameter

Rotor diameter [m].

wakeLossFactor

double wakeLossFactor

Wake loss factor [0-1], typical 0.05 to 0.15 for offshore.

weibullScale

double weibullScale

Weibull scale parameter [m/s] for AEP calculation.

weibullShape

double weibullShape

Weibull shape parameter for AEP calculation.

windSpeed

double windSpeed

Current wind speed at hub height [m/s].

windSpeedTimeSeries

double[] windSpeedTimeSeries

Time-series wind speeds for dynamic simulation [m/s].

Class neqsim.process.equipment.powergeneration.WindTurbine

class WindTurbine extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

airDensity

double airDensity

power

double power

powerCoefficient

double powerCoefficient

rotorArea

double rotorArea

windSpeed

double windSpeed

Package neqsim.process.equipment.pump

Class neqsim.process.equipment.pump.ESPPump

class ESPPump extends Pump implements Serializable

serialVersionUID:

1000L

Serialized Fields

degradationCoeffA

double degradationCoeffA

degradationCoeffB

double degradationCoeffB

gasSeparatorEfficiency

double gasSeparatorEfficiency

gasVoidFraction

double gasVoidFraction

hasGasSeparator

boolean hasGasSeparator

headDegradationFactor

double headDegradationFactor

headPerStage

double headPerStage

isGasLocked

boolean isGasLocked

isSurging

boolean isSurging

maxGVF

double maxGVF

numberOfStages

int numberOfStages

surgingGVF

double surgingGVF

Class neqsim.process.equipment.pump.Pump

class Pump extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Flag indicating if pump has been auto-sized.

calculateAsCompressor

boolean calculateAsCompressor

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

checkNPSH

boolean checkNPSH

dH

double dH

electricalDesign

PumpElectricalDesign electricalDesign

Electrical design for the pump.

isentropicEfficiency

double isentropicEfficiency

mechanicalDesign

PumpMechanicalDesign mechanicalDesign

Mechanical design for the pump.

minimumFlow

double minimumFlow

molarFlow

double molarFlow

npshMargin

double npshMargin

outTemperature

double outTemperature

powerSet

boolean powerSet

pressure

double pressure

pressureUnit

String pressureUnit

pumpChart

PumpChartInterface pumpChart

speed

double speed

thermoSystem

SystemInterface thermoSystem

useOutTemperature

boolean useOutTemperature

Class neqsim.process.equipment.pump.PumpChart

class PumpChart extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cEta

double cEta

cH

double cH

chartConditions

double[] chartConditions

chartValues

ArrayList<PumpCurve> chartValues

cQ

double cQ

efficiency

double[][] efficiency

fanLawCorrectionFitter

org.apache.commons.math3.fitting.WeightedObservedPoints fanLawCorrectionFitter

fanLawCorrectionFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction fanLawCorrectionFunc

flow

double[][] flow

hasNPSHCurve

boolean hasNPSHCurve

head

double[][] head

headUnit

String headUnit

isSurge

boolean isSurge

lastViscosity

double lastViscosity

maxFlow

double maxFlow

maxReducedFlow

double maxReducedFlow

maxSpeedCurve

double maxSpeedCurve

minFlow

double minFlow

minReducedFlow

double minReducedFlow

minSpeedCurve

double minSpeedCurve

npsh

double[][] npsh

redEfficiency

double[][] redEfficiency

redflow

double[][] redflow

redhead

double[][] redhead

redNPSH

double[][] redNPSH

reducedEfficiencyFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedEfficiencyFitter

reducedEfficiencyFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedEfficiencyFunc

reducedFlowFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedFlowFitter

reducedHeadFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedHeadFitter

reducedHeadFitterFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedHeadFitterFunc

reducedNPSHFitter

org.apache.commons.math3.fitting.WeightedObservedPoints reducedNPSHFitter

reducedNPSHFunc

org.apache.commons.math3.analysis.polynomials.PolynomialFunction reducedNPSHFunc

referenceDensity

double referenceDensity

referenceSpeed

double referenceSpeed

referenceViscosity

double referenceViscosity

refMW

double refMW

refPressure

double refPressure

refTemperature

double refTemperature

refZ

double refZ

speed

double[] speed

usePumpChart

boolean usePumpChart

useRealKappa

boolean useRealKappa

useViscosityCorrection

boolean useViscosityCorrection

Class neqsim.process.equipment.pump.PumpChartAlternativeMapLookupExtrapolate

class PumpChartAlternativeMapLookupExtrapolate extends CompressorChartAlternativeMapLookupExtrapolate implements Serializable

serialVersionUID:

1001L

Serialized Fields

cachedBEPFlow

double cachedBEPFlow

Cached BEP flow (lazy).

cEta

double cEta

cH

double cH

cQ

double cQ

Cached HI correction factors.

lastViscosity

double lastViscosity

npshCurveAvailable

boolean npshCurveAvailable

npshData

double[][] npshData

NPSH curve data.

referenceDensity

double referenceDensity

Reference density for density correction in kg/m3 (-1 means disabled).

referenceViscosity

double referenceViscosity

Reference viscosity in cSt (-1 means not set).

usePumpChart

boolean usePumpChart

Whether pump chart mode is active.

useViscosityCorrection

boolean useViscosityCorrection

Whether viscosity correction is enabled.

Class neqsim.process.equipment.pump.PumpCurve

class PumpCurve extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

efficiency

double[] efficiency

flow

double[] flow

head

double[] head

speed

double speed

Package neqsim.process.equipment.reactor

Class neqsim.process.equipment.reactor.AmmoniaSynthesisReactor

class AmmoniaSynthesisReactor extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

ammoniaProductionMolPerSec

double ammoniaProductionMolPerSec

Ammonia production rate [mol/s].

heatDuty

double heatDuty

Heat duty [W] (negative = exothermic heat released).

isothermal

boolean isothermal

Isothermal mode (true) or adiabatic (false).

nitrogenConvertedMolPerSec

double nitrogenConvertedMolPerSec

N2 converted [mol/s].

outletTemperature

double outletTemperature

Reactor outlet temperature [K] (set after run).

perPassConversion

double perPassConversion

Per-pass conversion of nitrogen [0-1]. Typical 0.10 to 0.20.

useEquilibriumConversion

boolean useEquilibriumConversion

Whether to use equilibrium conversion (true) or fixed per-pass (false).

Class neqsim.process.equipment.reactor.AnaerobicDigester

class AnaerobicDigester extends Fermenter implements Serializable

serialVersionUID:

1002L

Serialized Fields

actualSpecificMethaneYield

double actualSpecificMethaneYield

Actual specific methane yield used.

actualVsDestruction

double actualVsDestruction

VS destruction achieved.

biogasFlowRateNm3PerDay

double biogasFlowRateNm3PerDay

Biogas flow rate in Nm3/day.

biogasOutStream

StreamInterface biogasOutStream

Biogas product stream.

digestateOutStream

StreamInterface digestateOutStream

Digestate (effluent) outlet stream.

digesterHasRun

boolean digesterHasRun

Whether the digester has been run.

digesterTemperature

double digesterTemperature

Digester temperature in Kelvin.

feedRateKgPerHr

double feedRateKgPerHr

Feed rate in kg/hr (total wet mass).

hydraulicRetentionTimeDays

double hydraulicRetentionTimeDays

Hydraulic retention time in days.

methaneFraction

double methaneFraction

Methane content in biogas (volume fraction, default 0.60).

methaneProductionNm3PerDay

double methaneProductionNm3PerDay

Methane production rate in Nm3/day.

organicLoadingRate

double organicLoadingRate

Organic loading rate in kg VS / (m3 * day).

specificMethaneYield

double specificMethaneYield

Specific methane yield override (Nm3 CH4 / kg VS destroyed).

substrateType

AnaerobicDigester.SubstrateType substrateType

Substrate type.

temperatureRegime

AnaerobicDigester.TemperatureRegime temperatureRegime

Temperature regime.

totalSolidsFraction

double totalSolidsFraction

Total solids fraction of the feed (0-1).

vsDestruction

double vsDestruction

VS destruction fraction override.

vstsFraction

double vstsFraction

VS/TS ratio (volatile solids as fraction of total solids).

Class neqsim.process.equipment.reactor.BiomassGasifier

class BiomassGasifier extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

agentInletStream

StreamInterface agentInletStream

Optional external gasification agent inlet stream.

agentType

BiomassGasifier.AgentType agentType

Gasification agent.

biomass

BiomassCharacterization biomass

The biomass feedstock characterization.

biomassFeedRateKgPerHr

double biomassFeedRateKgPerHr

Biomass feed rate in kg/hr (dry basis).

carbonConversionEfficiency

double carbonConversionEfficiency

Carbon conversion efficiency (0-1). Fraction of feed carbon converted to gas.

charAshOutStream

StreamInterface charAshOutStream

Char and ash residue outlet stream.

charYieldFraction

double charYieldFraction

Char yield as fraction of dry biomass feed (0-1).

coldGasEfficiency

double coldGasEfficiency

Cold gas efficiency (LHV syngas / LHV feed, 0-1).

equivalenceRatio

double equivalenceRatio

Equivalence ratio (actual air / stoichiometric air). Typically 0.2-0.4.

gasificationPressure

double gasificationPressure

Gasification pressure in bara.

gasificationTemperature

double gasificationTemperature

Gasification temperature in Kelvin. If NaN, uses Gibbs equilibrium (adiabatic).

gasifierType

BiomassGasifier.GasifierType gasifierType

Gasifier type.

hasRun

boolean hasRun

Whether the gasifier has been run.

steamToBiomassRatio

double steamToBiomassRatio

Steam-to-biomass mass ratio (for STEAM and AIR_STEAM agents).

syngasLHVMjPerNm3

double syngasLHVMjPerNm3

Syngas LHV in MJ/Nm3.

syngasOutStream

StreamInterface syngasOutStream

Syngas (product gas) outlet stream.

syngasYieldNm3PerKg

double syngasYieldNm3PerKg

Syngas yield in Nm3 per kg dry biomass.

Class neqsim.process.equipment.reactor.CatalystBed

class CatalystBed extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

activityFactor

double activityFactor

Catalyst activity factor [-]. 1.0 = fresh, decreases with deactivation.

bulkDensity

double bulkDensity

Catalyst bulk density [kg/m3]. Mass of catalyst per unit bed volume.

particleDensity

double particleDensity

Catalyst particle density [kg/m3]. Density of individual particles.

particleDiameter

double particleDiameter

Catalyst particle diameter [m].

particlePorosity

double particlePorosity

Intra-particle porosity [-]. Fraction of particle volume that is pore.

specificSurfaceArea

double specificSurfaceArea

BET specific surface area [m2/kg].

tortuosity

double tortuosity

Tortuosity factor [-]. Ratio of actual pore path length to straight-line distance.

voidFraction

double voidFraction

Bed void fraction (porosity) [-]. Typical 0.35-0.50 for random packing.

Class neqsim.process.equipment.reactor.EnzymeTreatment

class EnzymeTreatment extends StirredTankReactor implements Serializable

serialVersionUID:

1000L

Serialized Fields

enzymeCostPerKg

double enzymeCostPerKg

Enzyme cost in $/kg.

enzymeHalfLife

double enzymeHalfLife

Enzyme half-life at operating conditions in hours.

enzymeLoading

double enzymeLoading

Enzyme loading in mg enzyme per g substrate.

enzymeType

String enzymeType

Type/name of enzyme used.

optimalPH

double optimalPH

Optimal pH for the enzyme.

optimalTemperatureK

double optimalTemperatureK

Optimal temperature for the enzyme in Kelvin.

temperatureSensitivity

double temperatureSensitivity

Temperature sensitivity: relative activity reduction per degree from optimal.

Class neqsim.process.equipment.reactor.FermentationReactor

class FermentationReactor extends Fermenter implements Serializable

serialVersionUID:

1003L

Serialized Fields

batchTime

double batchTime

Batch time in hours for BATCH and FED_BATCH modes.

biomassConcentration

double biomassConcentration

Initial / feed biomass concentration in g/L.

contoisConstant

double contoisConstant

Contois constant (Ksx) in g substrate / g biomass, used with CONTOIS model.

feedingRate

double feedingRate

Feeding rate in L/hr for fed-batch mode.

feedSubstrateConcentration

double feedSubstrateConcentration

Feed substrate concentration in g/L for fed-batch mode.

finalBiomassConc

double finalBiomassConc

Final biomass concentration in g/L.

finalProductConc

double finalProductConc

Final product concentration in g/L.

finalSubstrateConc

double finalSubstrateConc

Final substrate concentration in g/L.

gasOutStream

StreamInterface gasOutStream

Gas product outlet stream (CO2, etc.).

gasProductName

String gasProductName

Name of the gas product component.

gasYieldMolPerMol

double gasYieldMolPerMol

Gas product yield per substrate consumed (mol gas / mol substrate).

hasRun

boolean hasRun

Whether the reactor has been run.

initialProductConcentration

double initialProductConcentration

Initial product concentration in g/L.

kineticModel

FermentationReactor.KineticModel kineticModel

Selected kinetic model.

liquidOutStream

StreamInterface liquidOutStream

Liquid product outlet stream.

maintenanceCoeff

double maintenanceCoeff

Maintenance coefficient (g substrate / (g cells * hr)).

monodConstant

double monodConstant

Monod half-saturation constant (Ks) in g/L.

muMax

double muMax

Maximum specific growth rate in 1/hr.

operationMode

FermentationReactor.OperationMode operationMode

Operation mode.

productComponentName

String productComponentName

Name of the main fermentation product for NeqSim component mapping.

productFormedKgPerHr

double productFormedKgPerHr

Total product formed in kg/hr.

productInhibitionConcentration

double productInhibitionConcentration

Product inhibition concentration (Pmax) in g/L, used with PRODUCT_INHIBITED model.

productInhibitionExponent

double productInhibitionExponent

Product inhibition exponent, used with PRODUCT_INHIBITED model.

productivity

double productivity

Volumetric productivity in g/(L*hr).

specificGrowthRate

double specificGrowthRate

Specific growth rate achieved in 1/hr.

substrateComponentName

String substrateComponentName

Name of the substrate component for NeqSim component mapping.

substrateConcentration

double substrateConcentration

Initial / feed substrate concentration in g/L.

substrateConsumedKgPerHr

double substrateConsumedKgPerHr

Total substrate consumed in kg/hr.

substrateConversion

double substrateConversion

Substrate conversion (0-1).

substrateInhibitionConstant

double substrateInhibitionConstant

Substrate inhibition constant (Ki) in g/L, used with SUBSTRATE_INHIBITED model.

yieldBiomass

double yieldBiomass

Biomass yield (g cells / g substrate consumed).

yieldProduct

double yieldProduct

Product yield (g product / g substrate consumed).

Class neqsim.process.equipment.reactor.Fermenter

class Fermenter extends StirredTankReactor implements Serializable

serialVersionUID:

1000L

Serialized Fields

aerationPower

double aerationPower

Aeration compressor power in kW. Calculated during run.

aerationRate

double aerationRate

Aeration rate in vvm (volume of air per volume of liquid per minute).

aerobic

boolean aerobic

Whether the fermenter is aerobic (requires O2) or anaerobic.

cellYield

double cellYield

Cell mass yield coefficient (g cells / g substrate).

co2EvolutionRate

double co2EvolutionRate

CO2 evolution rate in mol/(L*hr). Calculated during run.

kLa

double kLa

KLa value (volumetric mass transfer coefficient) in 1/hr.

maintenanceCoefficient

double maintenanceCoefficient

Cell mass maintenance coefficient (g substrate / (g cells * hr)).

oxygenTransferRate

double oxygenTransferRate

Oxygen transfer rate in mol O2 / (L * hr).

targetPH

double targetPH

Target pH for pH-controlled fermentation. NaN if not controlled.

Class neqsim.process.equipment.reactor.FurnaceBurner

class FurnaceBurner extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1L

Serialized Fields

airFuelRatioMass

double airFuelRatioMass

airInlet

StreamInterface airInlet

burnerDesign

FurnaceBurner.BurnerDesign burnerDesign

coolingFactor

double coolingFactor

emissionRatesKgPerHr

Map<String,Double> emissionRatesKgPerHr

excessAirFraction

double excessAirFraction

flameTemperature

double flameTemperature

fuelInlet

StreamInterface fuelInlet

heatReleasekW

double heatReleasekW

outletStream

StreamInterface outletStream

reactor

GibbsReactor reactor

surroundingsTemperatureK

double surroundingsTemperatureK

Class neqsim.process.equipment.reactor.GibbsReactor

class GibbsReactor extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualIterations

int actualIterations

armijoC1

double armijoC1

Armijo sufficient decrease parameter c1 in (0, 1). Typical value 1e-4.

armijoMaxBacktracks

int armijoMaxBacktracks

Maximum number of backtracking steps in Armijo line search.

armijoRho

double armijoRho

Backtracking contraction factor rho in (0, 1). Step is multiplied by rho each backtrack.

converged

boolean converged

convergenceTolerance

double convergenceTolerance

dampingComposition

double dampingComposition

deltaNorm

double deltaNorm

dG

double dG

dT

double dT

elementMoleBalanceDiff

double[] elementMoleBalanceDiff

elementMoleBalanceIn

double[] elementMoleBalanceIn

elementMoleBalanceOut

double[] elementMoleBalanceOut

elementNames

String[] elementNames

energyMode

GibbsReactor.EnergyMode energyMode

enthalpyOfReactions

double enthalpyOfReactions

enthalpyOld

double enthalpyOld

finalConvergenceError

double finalConvergenceError

finalMoles

Map<String,Double> finalMoles

G

double G

GOLD

double GOLD

inertComponents

Set<String> inertComponents

initialMoles

Map<String,Double> initialMoles

inlet_mole

List<Double> inlet_mole

inletEnthalpy

double inletEnthalpy

jacobianColLabels

List<String> jacobianColLabels

jacobianInverse

double[][] jacobianInverse

jacobianMatrix

double[][] jacobianMatrix

jacobianRowLabels

List<String> jacobianRowLabels

lagrangeContributions

Map<String,Double> lagrangeContributions

lambda

double[] lambda

maxIterations

int maxIterations

method

String method

minIterations

int minIterations

objectiveFunctionValues

Map<String,Double> objectiveFunctionValues

objectiveMinimizationVector

double[] objectiveMinimizationVector

objectiveMinimizationVectorLabels

List<String> objectiveMinimizationVectorLabels

outlet_mole

List<Double> outlet_mole

outletEnthalpy

double outletEnthalpy

processedComponentIndexMap

Map<String,Integer> processedComponentIndexMap

processedComponents

List<String> processedComponents

regularizationTau

double regularizationTau

Tikhonov regularization parameter tau. Added to Hessian diagonal.

regularizationThreshold

double regularizationThreshold

Condition number threshold above which regularization is applied.

system

SystemInterface system

temperatureChange

double temperatureChange

tempUpdateIter

int tempUpdateIter

useAdaptiveStepSize

boolean useAdaptiveStepSize

useAllDatabaseSpecies

boolean useAllDatabaseSpecies

useArmijoLineSearch

boolean useArmijoLineSearch

Enable Armijo backtracking line search for guaranteed Gibbs energy decrease.

When enabled, the Newton step is scaled by alpha in (0, 1] such that the Armijo sufficient decrease condition is satisfied: G(n + alpha * dn) <= G(n) + c1 * alpha * grad^T * dn. This replaces fixed damping with an adaptive, globally convergent strategy.

Reference: Nocedal & Wright, Numerical Optimization (2006), Algorithm 3.1.

useRegularization

boolean useRegularization

Enable Tikhonov regularization for ill-conditioned Jacobians.

When the condition number of the Jacobian exceeds regularizationThreshold, a regularization term tau * I is added to the Hessian block: H_reg = H + tau * I. This prevents divergence near phase boundaries where the Hessian becomes singular.

Reference: Tikhonov, A. N. (1963). Dokl. Akad. Nauk SSSR, 151, 501-504.

variableComponents

List<String> variableComponents

Class neqsim.process.equipment.reactor.GibbsReactorCO2

class GibbsReactorCO2 extends TwoPortEquipment implements Serializable

serialVersionUID:

1L

Class neqsim.process.equipment.reactor.KineticReaction

class KineticReaction extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

activationEnergy

double activationEnergy

Activation energy Ea [J/mol].

adsorptionActivationEnergy

double adsorptionActivationEnergy

LHHW adsorption activation energy [J/mol].

adsorptionExponent

int adsorptionExponent

LHHW adsorption exponent m (denominator raised to power m).

adsorptionPreExpFactor

double adsorptionPreExpFactor

LHHW adsorption pre-exponential factor.

adsorptionTerms

Map<String,double[]> adsorptionTerms

LHHW adsorption terms: component name to [Ki, adsorption order].

eqCoeffs

double[] eqCoeffs

Equilibrium constant correlation coefficients. ln(Keq) = eqCoeffs[0] + eqCoeffs[1]/T + eqCoeffs[2]*ln(T) + eqCoeffs[3]*T.

heatOfReaction

double heatOfReaction

Heat of reaction [J/mol] based on stoichiometry of first reactant. Negative = exothermic.

name

String name

Name of this reaction.

preExponentialFactor

double preExponentialFactor

Pre-exponential factor A in rate constant [units depend on rate law and basis].

productOrders

Map<String,Double> productOrders

Reaction orders for products (used in reversible reactions).

rateBasis

KineticReaction.RateBasis rateBasis

Rate basis.

rateType

KineticReaction.RateType rateType

Rate expression type.

reactionOrders

Map<String,Double> reactionOrders

Reaction orders (kinetic exponents) for reactants.

reversible

boolean reversible

Whether the reaction is reversible.

stoichiometry

Map<String,Double> stoichiometry

Stoichiometric coefficients: negative for reactants, positive for products.

temperatureExponent

double temperatureExponent

Temperature exponent n in modified Arrhenius k = A * T^n * exp(-Ea/RT).

Class neqsim.process.equipment.reactor.PlugFlowReactor

class PlugFlowReactor extends TwoPortEquipment implements Serializable

serialVersionUID:

1001L

Serialized Fields

axialProfile

ReactorAxialProfile axialProfile

Axial profile results.

catalystBed

CatalystBed catalystBed

Catalyst bed properties (null for homogeneous reactors).

coolantTemperature

double coolantTemperature

Coolant temperature [K] (used in COOLANT mode).

diameter

double diameter

Reactor tube inner diameter [m].

energyMode

PlugFlowReactor.EnergyMode energyMode

Energy balance mode.

heatDuty

double heatDuty

Total heat duty [W] (positive = heat added, negative = heat removed).

integrationMethod

PlugFlowReactor.IntegrationMethod integrationMethod

Integration method.

keyComponent

String keyComponent

Key component name for conversion tracking.

length

double length

Reactor tube length [m].

numberOfSteps

int numberOfSteps

Number of integration steps.

numberOfTubes

int numberOfTubes

Number of parallel tubes (multi-tube reactor).

outletTemperatureK

double outletTemperatureK

Outlet temperature [K].

overallConversion

double overallConversion

Overall conversion of key component [-].

overallHeatTransferCoefficient

double overallHeatTransferCoefficient

Overall heat transfer coefficient U [W/(m2*K)] (used in COOLANT mode).

pressureDrop

double pressureDrop

Total pressure drop [bar].

propertyUpdateFrequency

int propertyUpdateFrequency

Re-flash thermodynamic properties every N steps.

reactions

List<KineticReaction> reactions

List of kinetic reactions.

residenceTime

double residenceTime

Mean residence time [s].

Class neqsim.process.equipment.reactor.PyrolysisReactor

class PyrolysisReactor extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

actualBioOilYield

double actualBioOilYield

Actual bio-oil yield used in last simulation (0-1).

actualCharYield

double actualCharYield

Actual char yield used in last simulation (0-1).

actualGasYield

double actualGasYield

Actual gas yield used in last simulation (0-1).

biocharHHV

double biocharHHV

Biochar HHV in MJ/kg.

biocharOutStream

StreamInterface biocharOutStream

Biochar outlet stream (solid residue).

biomass

BiomassCharacterization biomass

The biomass feedstock characterization.

biomassFeedRateKgPerHr

double biomassFeedRateKgPerHr

Biomass feed rate in kg/hr (dry basis).

bioOilHHV

double bioOilHHV

Bio-oil HHV in MJ/kg.

bioOilOutStream

StreamInterface bioOilOutStream

Bio-oil outlet stream (condensable vapours).

bioOilYield

double bioOilYield

Bio-oil yield fraction (0-1). Overrides automatic estimate if set.

charYield

double charYield

Char yield fraction (0-1). Overrides automatic estimate if set.

energyYield

double energyYield

Energy yield as fraction of feed energy in products.

gasLHVMjPerNm3

double gasLHVMjPerNm3

Gas LHV in MJ/Nm3.

gasOutStream

StreamInterface gasOutStream

Product gas outlet stream (non-condensable gases).

gasYield

double gasYield

Gas yield fraction (0-1). Overrides automatic estimate if set.

hasRun

boolean hasRun

Whether the reactor has been run.

heatingRate

double heatingRate

Heating rate in K/s (informational, affects default product yields).

pyrolysisMode

PyrolysisReactor.PyrolysisMode pyrolysisMode

Pyrolysis mode.

pyrolysisTemperature

double pyrolysisTemperature

Pyrolysis temperature in Kelvin.

reactorPressure

double reactorPressure

Reactor pressure in bara.

userYieldsSet

boolean userYieldsSet

Whether user-supplied yields should be used.

vapourResidenceTime

double vapourResidenceTime

Vapour residence time in seconds.

Class neqsim.process.equipment.reactor.ReactorAxialProfile

class ReactorAxialProfile extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

componentNames

String[] componentNames

Component names corresponding to molarFlows columns.

conversion

double[] conversion

Conversion profile of key component [-].

molarFlows

double[][] molarFlows

Molar flow profiles [mol/s] indexed as [step][component].

numberOfSteps

int numberOfSteps

Number of axial steps stored.

position

double[] position

Axial positions [m].

pressure

double[] pressure

Pressure profile [bara].

reactionRate

double[] reactionRate

Total reaction rate at each position [mol/(m3*s)].

temperature

double[] temperature

Temperature profile [K].

Class neqsim.process.equipment.reactor.StirredTankReactor

class StirredTankReactor extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

agitatorPowerPerVolume

double agitatorPowerPerVolume

Agitator power per unit volume in kW/m3.

heatDuty

double heatDuty

Heat duty calculated from energy balance in Watts.

isothermal

boolean isothermal

Whether to operate in isothermal mode (fix temperature).

pressureDrop

double pressureDrop

Pressure drop across reactor in bar.

reactions

List<StoichiometricReaction> reactions

Reactions to apply in this reactor.

reactorPressure

double reactorPressure

Reactor pressure in bara. If NaN, uses feed pressure.

reactorTemperature

double reactorTemperature

Reactor temperature in Kelvin. If NaN, uses feed temperature (isothermal to feed).

residenceTime

double residenceTime

Residence time in hours.

vesselVolume

double vesselVolume

Vessel volume in m3.

Class neqsim.process.equipment.reactor.StoichiometricReaction

class StoichiometricReaction extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

conversion

double conversion

Fractional conversion of the limiting reactant (0.0 to 1.0).

limitingReactant

String limitingReactant

Name of the limiting reactant component.

molarBasis

boolean molarBasis

Whether the reaction is on a molar (true) or mass (false) basis.

name

String name

Name of this reaction.

stoichiometry

Map<String,Double> stoichiometry

Stoichiometric coefficients keyed by component name. Negative for reactants.

Class neqsim.process.equipment.reactor.SulfurDepositionAnalyser

class SulfurDepositionAnalyser extends TwoPortEquipment implements Serializable

serialVersionUID:

1001L

Serialized Fields

analysisPressueBara

double analysisPressueBara

blockageRiskAssessment

Map<String,Object> blockageRiskAssessment

catalysisAnalysis

Map<String,Object> catalysisAnalysis

corrosionAssessment

Map<String,Object> corrosionAssessment

equilibriumComposition

Map<String,Double> equilibriumComposition

flowVelocityMs

double flowVelocityMs

gasFlowRateSm3h

double gasFlowRateSm3h

gasVsLiquidSolubility

Map<String,Object> gasVsLiquidSolubility

gibbsDamping

double gibbsDamping

gibbsMaxIterations

int gibbsMaxIterations

gibbsTolerance

double gibbsTolerance

kineticAnalysis

Map<String,Object> kineticAnalysis

pipeDiameterM

double pipeDiameterM

pipeSegmentLengthM

double pipeSegmentLengthM

reactionSummary

Map<String,Object> reactionSummary

runChemicalEquilibrium

boolean runChemicalEquilibrium

runCorrosionAssessment

boolean runCorrosionAssessment

runSolidFlash

boolean runSolidFlash

solidSulfurFraction

double solidSulfurFraction

solidSulfurPresent

boolean solidSulfurPresent

sulfurDepositionOnsetTemperatureC

double sulfurDepositionOnsetTemperatureC

sulfurSolubilityMgSm3

double sulfurSolubilityMgSm3

sulfurSolubilityMolFrac

double sulfurSolubilityMolFrac

supersaturationAnalysis

Map<String,Object> supersaturationAnalysis

temperatureSweepResults

List<Map<String,Object>> temperatureSweepResults

tempSweepEndC

double tempSweepEndC

tempSweepStartC

double tempSweepStartC

tempSweepStepC

double tempSweepStepC

Package neqsim.process.equipment.reservoir

Class neqsim.process.equipment.reservoir.AnnularLeakagePath

class AnnularLeakagePath extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

annularFluidGradient

double annularFluidGradient

Annular fluid gradient in bar/m.

casingBurstRating

double casingBurstRating

Casing burst rating at surface in bara.

cementCrossSectionArea

double cementCrossSectionArea

cementLeakageRate

double cementLeakageRate

cementPermeability

double cementPermeability

channelGap

double channelGap

channelLeakageRate

double channelLeakageRate

channelWidth

double channelWidth

depthBottom

double depthBottom

depthTop

double depthTop

fluid

SystemInterface fluid

fluidDensity

double fluidDensity

fluidViscosity

double fluidViscosity

fracPressureAtShoe

double fracPressureAtShoe

Fracture pressure at shoe in bara.

maasp

double maasp

Computed MAASP in bara.

maaspBurstSafetyFactor

double maaspBurstSafetyFactor

Safety factor for burst MAASP per API RP 90.

maaspCollapseSafetyFactor

double maaspCollapseSafetyFactor

Safety factor for collapse MAASP per API RP 90.

maaspLimitingCriterion

String maaspLimitingCriterion

MAASP limiting criterion.

mechanism

AnnularLeakagePath.LeakageMechanism mechanism

pathLength

double pathLength

shoeDepth

double shoeDepth

Shoe depth in m TVD.

sinkPressure

double sinkPressure

sourcePressure

double sourcePressure

totalLeakageRate

double totalLeakageRate

tubingCollapseRating

double tubingCollapseRating

Tubing collapse rating in bara.

Class neqsim.process.equipment.reservoir.CementDegradationModel

class CementDegradationModel extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

carbonationRateFactor

double carbonationRateFactor

cementThickness

double cementThickness

cementType

CementDegradationModel.CementType cementType

co2PartialPressure

double co2PartialPressure

degradedPermeability

double degradedPermeability

effectiveDiffusivity

double effectiveDiffusivity

initialPermeability

double initialPermeability

temperature

double temperature

Class neqsim.process.equipment.reservoir.InjectionConformanceMonitor

class InjectionConformanceMonitor extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentHallSlope

double currentHallSlope

dataPoints

List<InjectionConformanceMonitor.InjectionDataPoint> dataPoints

diagnosis

InjectionConformanceMonitor.ConformanceDiagnosis diagnosis

hallCumulativePressureTime

List<Double> hallCumulativePressureTime

hallCumulativeVolume

List<Double> hallCumulativeVolume

hallPlotCalculated

boolean hallPlotCalculated

initialHallSlope

double initialHallSlope

injectionProfile

List<InjectionConformanceMonitor.ZoneProfilePoint> injectionProfile

Class neqsim.process.equipment.reservoir.InjectionConformanceMonitor.InjectionDataPoint

class InjectionDataPoint extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

injectionRateM3perDay

double injectionRateM3perDay

timeDays

double timeDays

wellheadPressureBar

double wellheadPressureBar

Class neqsim.process.equipment.reservoir.InjectionConformanceMonitor.ZoneProfilePoint

class ZoneProfilePoint extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

allocationFraction

double allocationFraction

depthM

double depthM

isTargetZone

boolean isTargetZone

zoneName

String zoneName

Class neqsim.process.equipment.reservoir.MultiCompartmentReservoir

class MultiCompartmentReservoir extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

compartmentIndex

Map<String,Integer> compartmentIndex

compartments

List<MultiCompartmentReservoir.Compartment> compartments

connections

List<MultiCompartmentReservoir.TransmissibilityConnection> connections

simulationTime

double simulationTime

Class neqsim.process.equipment.reservoir.MultiCompartmentReservoir.Compartment

class Compartment extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

initialPressure

double initialPressure

Initial pressure (bara).

name

String name

Compartment name.

netInjectionRate

double netInjectionRate

Net injection rate into compartment (Sm3/day).

netProductionRate

double netProductionRate

Net production rate from compartment (Sm3/day).

poreVolume

double poreVolume

Pore volume (m³).

pressure

double pressure

Current pressure (bara).

totalCompressibility

double totalCompressibility

Total compressibility (1/bar).

Class neqsim.process.equipment.reservoir.MultiCompartmentReservoir.TransmissibilityConnection

class TransmissibilityConnection extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

compartment1

String compartment1

First compartment name.

compartment2

String compartment2

Second compartment name.

currentFlowRate

double currentFlowRate

Current inter-zone flow rate (Sm3/day), positive = from comp1 to comp2.

transmissibility

double transmissibility

Transmissibility (Sm3/day/bar).

Class neqsim.process.equipment.reservoir.ReservoirCVDsim

class ReservoirCVDsim extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.reservoir.ReservoirDiffLibsim

class ReservoirDiffLibsim extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.reservoir.ReservoirTPsim

class ReservoirTPsim extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

flowRate

double flowRate

flowUnit

String flowUnit

outStream

StreamInterface outStream

pressure

double pressure

prodPhaseName

String prodPhaseName

pUnit

String pUnit

reservoirFluid

SystemInterface reservoirFluid

temperature

double temperature

tUnit

String tUnit

Class neqsim.process.equipment.reservoir.SimpleReservoir

class SimpleReservoir extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasInjector

ArrayList<Well> gasInjector

gasProducer

ArrayList<Well> gasProducer

gasProductionTotal

double gasProductionTotal

gasVolume

double gasVolume

lowPressureLimit

double lowPressureLimit

OGIP

double OGIP

oilProducer

ArrayList<Well> oilProducer

oilProductionTotal

double oilProductionTotal

oilVolume

double oilVolume

OOIP

double OOIP

reservoirVolume

double reservoirVolume

thermoSystem

SystemInterface thermoSystem

waterInjector

ArrayList<Well> waterInjector

waterProducer

ArrayList<Well> waterProducer

waterVolume

double waterVolume

Class neqsim.process.equipment.reservoir.TubingPerformance

class TubingPerformance extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottomHolePressure

double bottomHolePressure

bottomHoleTemperature

double bottomHoleTemperature

depthProfile

double[] depthProfile

formationThermalConductivity

double formationThermalConductivity

geothermalGradient

double geothermalGradient

holdupProfile

double[] holdupProfile

inclination

double inclination

numberOfSegments

int numberOfSegments

overallHeatTransferCoeff

double overallHeatTransferCoeff

pressureDropCorrelation

TubingPerformance.PressureDropCorrelation pressureDropCorrelation

pressureProfile

double[] pressureProfile

productionTime

double productionTime

tableVLPBHP

double[] tableVLPBHP

tableVLPFlowRates

double[] tableVLPFlowRates

tableVLPWellheadPressure

double tableVLPWellheadPressure

temperatureModel

TubingPerformance.TemperatureModel temperatureModel

temperatureProfile

double[] temperatureProfile

totalPressureDrop

double totalPressureDrop

tubingDiameter

double tubingDiameter

tubingLength

double tubingLength

useTableVLP

boolean useTableVLP

vlpBottomHolePressures

double[] vlpBottomHolePressures

vlpFlowRates

double[] vlpFlowRates

vlpWellheadPressures

double[] vlpWellheadPressures

wallRoughness

double wallRoughness

wellheadPressure

double wellheadPressure

wellheadTemperature

double wellheadTemperature

Class neqsim.process.equipment.reservoir.Well

class Well extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

stream

StreamInterface stream

x

double x

y

double y

z

double z

Class neqsim.process.equipment.reservoir.WellFlow

class WellFlow extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

backpressureA

double backpressureA

backpressureB

double backpressureB

calcpressure

boolean calcpressure

fetkovichC

double fetkovichC

fetkovichN

double fetkovichN

flowMode

WellFlow.FlowMode flowMode

inflowModel

WellFlow.InflowPerformanceModel inflowModel

inflowTablePwf

double[] inflowTablePwf

inflowTableRate

double[] inflowTableRate

isMultiLayer

boolean isMultiLayer

pressureOut

double pressureOut

pressureUnit

String pressureUnit

targetZoneName

String targetZoneName

thermoSystem

SystemInterface thermoSystem

useWellProductionIndex

boolean useWellProductionIndex

vogelQmax

double vogelQmax

vogelRefPres

double vogelRefPres

wellProductionIndex

double wellProductionIndex

Class neqsim.process.equipment.reservoir.WellSystem

class WellSystem extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

backpressureA

double backpressureA

backpressureB

double backpressureB

bhTemperature

double bhTemperature

chokeOpening

double chokeOpening

fetkovichC

double fetkovichC

fetkovichN

double fetkovichN

inletStream

StreamInterface inletStream

iprModel

WellSystem.IPRModel iprModel

isMultiLayer

boolean isMultiLayer

maxIterations

int maxIterations

operatingBHP

double operatingBHP

operatingFlowRate

double operatingFlowRate

outletStream

StreamInterface outletStream

pdCorrelation

TubingPerformance.PressureDropCorrelation pdCorrelation

productionChoke

ThrottlingValve productionChoke

productivityIndex

double productivityIndex

reservoirPressure

double reservoirPressure

reservoirStream

StreamInterface reservoirStream

targetWellheadPressure

double targetWellheadPressure

tempModel

TubingPerformance.TemperatureModel tempModel

tolerance

double tolerance

tubingDiameter

double tubingDiameter

tubingInclination

double tubingInclination

tubingLength

double tubingLength

tubingRoughness

double tubingRoughness

tubingVLP

TubingPerformance tubingVLP

vlpSolverMode

WellSystem.VLPSolverMode vlpSolverMode

vogelQmax

double vogelQmax

wellFlowIPR

WellFlow wellFlowIPR

whTemperature

double whTemperature

Package neqsim.process.equipment.separator

Class neqsim.process.equipment.separator.CryogenicSeparator

class CryogenicSeparator extends Separator implements Serializable

serialVersionUID:

1006L

Serialized Fields

co2FreezeOutRisk

boolean co2FreezeOutRisk

Whether CO2 freeze-out risk was detected.

co2MolFrac

double co2MolFrac

CO2 mole fraction in the feed.

heavyHCFreezeOutRisk

boolean heavyHCFreezeOutRisk

Whether heavy hydrocarbon freeze-out risk was detected.

maxCO2MolFrac

double maxCO2MolFrac

Maximum allowable CO2 for cryogenic operation (mole fraction).

maxWaterPpm

double maxWaterPpm

Maximum allowable water for cryogenic operation (ppm molar).

solidPhaseDetected

boolean solidPhaseDetected

Whether solid phases were detected by thermodynamic flash.

waterIceRisk

boolean waterIceRisk

Whether water/ice formation risk was detected.

Class neqsim.process.equipment.separator.Crystallizer

class Crystallizer extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

crystallizationType

String crystallizationType

Type of crystallization: "cooling", "evaporative", "antisolvent".

crystalPurity

double crystalPurity

Crystal purity (mass fraction of target in crystals).

crystalStream

StreamInterface crystalStream

Crystal (solid) outlet stream.

heatDuty

double heatDuty

Heat duty for cooling/heating in Watts.

inletStream

StreamInterface inletStream

Inlet feed stream.

motherLiquorStream

StreamInterface motherLiquorStream

Mother liquor (liquid) outlet stream.

outletPressure

double outletPressure

Outlet pressure in bara. Used for evaporative crystallization.

outletTemperature

double outletTemperature

Outlet temperature in Kelvin. Used for cooling crystallization.

residenceTime

double residenceTime

Residence time in hours.

solidRecovery

double solidRecovery

Solid recovery fraction of the target solute (0-1).

targetSolute

String targetSolute

Name of the target solute to crystallize.

vesselVolume

double vesselVolume

Vessel volume in m3.

Class neqsim.process.equipment.separator.EndFlash

class EndFlash extends Separator implements Serializable

serialVersionUID:

1005L

Serialized Fields

flashGasRatio

double flashGasRatio

Flash gas to feed ratio (molar).

lngSpecMet

boolean lngSpecMet

Whether LNG product meets N2 specification.

maxN2InLNG

double maxN2InLNG

Maximum allowable N2 mole fraction in LNG product (ISO 16903 limit).

methaneInLNGMolFrac

double methaneInLNGMolFrac

Methane mole fraction in LNG product.

n2InFlashGasMolFrac

double n2InFlashGasMolFrac

N2 mole fraction in flash gas.

n2InLNGMolFrac

double n2InLNGMolFrac

Actual N2 mole fraction in LNG product.

Class neqsim.process.equipment.separator.GasScrubber

class GasScrubber extends Separator implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.GasScrubberSimple

class GasScrubberSimple extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasOutStream

StreamInterface gasOutStream

gasSystem

SystemInterface gasSystem

inletStream

StreamInterface inletStream

liquidOutStream

StreamInterface liquidOutStream

liquidSystem

SystemInterface liquidSystem

thermoSystemCloned

SystemInterface thermoSystemCloned

waterSystem

SystemInterface waterSystem

Class neqsim.process.equipment.separator.Hydrocyclone

class Hydrocyclone extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

oilInAqueous

double oilInAqueous

overflowPressure

double overflowPressure

PDR

double PDR

rejectRatio

double rejectRatio

separationEfficiency

double separationEfficiency

underflowPressure

double underflowPressure

waterOutStream

StreamInterface waterOutStream

Class neqsim.process.equipment.separator.LiquidLiquidExtractor

class LiquidLiquidExtractor extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

extractStream

StreamInterface extractStream

Extract stream (solvent-rich phase containing extracted solute).

feedStream

StreamInterface feedStream

Feed stream (aqueous or original phase).

inletMixer

Mixer inletMixer

Internal mixer for combining feed and solvent.

numberOfStages

int numberOfStages

Number of theoretical stages.

pressureDrop

double pressureDrop

Pressure drop across extractor in bar.

raffinateStream

StreamInterface raffinateStream

Raffinate stream (feed-rich phase, depleted in solute).

residenceTimePerStage

double residenceTimePerStage

Residence time per stage in minutes.

solventStream

StreamInterface solventStream

Solvent stream (extraction solvent).

stageEfficiency

double stageEfficiency

Overall stage efficiency (0.0 to 1.0).

Class neqsim.process.equipment.separator.NeqGasScrubber

class NeqGasScrubber extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasOutStream

StreamInterface gasOutStream

gasSystem

SystemInterface gasSystem

inletStream

StreamInterface inletStream

liquidOutStream

StreamInterface liquidOutStream

liquidSystem

SystemInterface liquidSystem

scrubberSection

ArrayList<SeparatorSection> scrubberSection

thermoSystem

SystemInterface thermoSystem

thermoSystemCloned

SystemInterface thermoSystemCloned

waterSystem

SystemInterface waterSystem

Class neqsim.process.equipment.separator.PressureFilter

class PressureFilter extends SolidsSeparator implements Serializable

serialVersionUID:

1000L

Serialized Fields

filterArea

double filterArea

Filter area in m2.

operatingPressure

double operatingPressure

Operating pressure in bar gauge.

Class neqsim.process.equipment.separator.RotaryVacuumFilter

class RotaryVacuumFilter extends SolidsSeparator implements Serializable

serialVersionUID:

1000L

Serialized Fields

filterArea

double filterArea

Filter area in m2.

specificCakeResistance

double specificCakeResistance

Specific cake resistance in m/kg.

vacuumPressure

double vacuumPressure

Vacuum pressure in bar absolute.

Class neqsim.process.equipment.separator.ScrewPress

class ScrewPress extends SolidsSeparator implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressionRatio

double compressionRatio

Compression ratio.

screwSpeed

double screwSpeed

Screw speed in RPM.

Class neqsim.process.equipment.separator.Separator

class Separator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialization Methods

readObject

private void readObject(ObjectInputStream in)
                 throws IOException,
ClassNotFoundException

Custom deserialization to reinitialize transient fields.

After deserialization, the capacity constraints need to be reinitialized because the valueSupplier lambdas are transient and cannot be serialized. This method clears any deserialized constraints and creates fresh ones with proper value suppliers bound to this separator instance.

Parameters:

in - the ObjectInputStream to read from

Throws:

IOException - if an I/O error occurs

ClassNotFoundException - if the class of a serialized object cannot be found

Serialized Fields

autoSized

boolean autoSized

Flag indicating if separator has been auto-sized.

bootVolume

double bootVolume

Boot (sump) volume in m3 for water/heavy liquid collection.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Capacity constraints map for this separator.

designGasLoadFactor

double designGasLoadFactor

Design gas load factor (K-factor) from mechanical design [m/s].

designLiquidLevelFraction

double designLiquidLevelFraction

Liquid level fraction (Fg) from mechanical design.

efficiency

double efficiency

electricalDesign

SeparatorElectricalDesign electricalDesign

enforceCapacityLimits

boolean enforceCapacityLimits

Whether to enforce capacity limits during simulation.

gasCarryunderFraction

double gasCarryunderFraction

gasInLiquid

double gasInLiquid

gasInLiquidSpec

String gasInLiquidSpec

gasOutStream

StreamInterface gasOutStream

gasSystem

SystemInterface gasSystem

gasVolume

double gasVolume

heatInput

double heatInput

heatInputUnit

String heatInputUnit

inletStreamMixer

Mixer inletStreamMixer

instrumentDesign

SeparatorInstrumentDesign instrumentDesign

isInitTransient

boolean isInitTransient

lastEnthalpy

double lastEnthalpy

lastFlowRate

double lastFlowRate

lastPressure

double lastPressure

liquidCarryoverFraction

double liquidCarryoverFraction

liquidLevel

double liquidLevel

Liquid level height in meters. Initialised to 50% of internal diameter during construction.

liquidOutStream

StreamInterface liquidOutStream

liquidSystem

SystemInterface liquidSystem

liquidVolume

double liquidVolume

maxDesignGasFlowRate

double maxDesignGasFlowRate

Maximum gas volumetric flow rate from design [m3/s].

mistEliminatorDpCoeff

double mistEliminatorDpCoeff

Mist eliminator pressure drop coefficient (dP = coeff * rho * v^2 / 2).

mistEliminatorThickness

double mistEliminatorThickness

Mist eliminator thickness in meters.

numberOfInputStreams

int numberOfInputStreams

oilInGas

double oilInGas

oilInGasSpec

String oilInGasSpec

orientation

String orientation

Orientation of separator. "horizontal" or "vertical"

pressureDrop

double pressureDrop

separatorMechanicalDesign

SeparatorMechanicalDesign separatorMechanicalDesign

separatorSection

ArrayList<SeparatorSection> separatorSection

setHeatInput

boolean setHeatInput

specifiedStream

String specifiedStream

thermoSystem

SystemInterface thermoSystem

thermoSystem2

SystemInterface thermoSystem2

thermoSystemCloned

SystemInterface thermoSystemCloned

useDetailedEntrainmentCalculation

boolean useDetailedEntrainmentCalculation

Whether to use the detailed performance calculator for entrainment computation. When false (default), the simple entrainment fraction model is used.

waterInGas

double waterInGas

waterInGasSpec

String waterInGasSpec

waterSystem

SystemInterface waterSystem

weirHeight

double weirHeight

Weir height in meters — liquid spills over the weir to the outlet.

weirLength

double weirLength

Weir length (crest length) in meters across the separator.

Class neqsim.process.equipment.separator.SolidsCentrifuge

class SolidsCentrifuge extends SolidsSeparator implements Serializable

serialVersionUID:

1000L

Serialized Fields

gForce

double gForce

G-force (relative centrifugal force).

Class neqsim.process.equipment.separator.SolidsSeparator

class SolidsSeparator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultSolidsSplit

double defaultSolidsSplit

Default split fraction to solids outlet for components not explicitly specified.

equipmentType

String equipmentType

Equipment type string for reporting.

inletStream

StreamInterface inletStream

Inlet feed stream.

liquidOutStream

StreamInterface liquidOutStream

Liquid-clear outlet stream (filtrate/permeate).

moistureContent

double moistureContent

Target moisture content (mass fraction) in the solids cake.

powerConsumption

double powerConsumption

Calculated power consumption in kW.

pressureDrop

double pressureDrop

Pressure drop across the separator in bar.

solidsOutStream

StreamInterface solidsOutStream

Solids-rich outlet stream (cake/retentate).

solidsSplitFractions

Map<String,Double> solidsSplitFractions

Component-specific split fraction to solids outlet. Keys are component names, values are fractions (0-1) going to solids outlet. Components not listed default to SolidsSeparator.defaultSolidsSplit.

specificEnergy

double specificEnergy

Specific energy consumption in kWh per m3 of feed.

Class neqsim.process.equipment.separator.ThreePhaseSeparator

class ThreePhaseSeparator extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

aqueousInGas

double aqueousInGas

aqueousInGasSpec

String aqueousInGasSpec

aqueousInOil

double aqueousInOil

aqueousInOilSpec

String aqueousInOilSpec

gasInAqueous

double gasInAqueous

gasInAqueousSpec

String gasInAqueousSpec

gasInOil

double gasInOil

gasInOilSpec

String gasInOilSpec

gasOutletFlowFraction

double gasOutletFlowFraction

Gas outlet valve flow fraction (0.0 = fully closed, 1.0 = fully open).

lastEnthalpy

double lastEnthalpy

lastFlowRate

double lastFlowRate

lastPressure

double lastPressure

oilInAqueous

double oilInAqueous

oilInAqueousSpec

String oilInAqueousSpec

oilInGas

double oilInGas

oilInGasSpec

String oilInGasSpec

oilLevel

double oilLevel

Oil level height in meters (bottom of separator to top of oil phase).

oilOutletFlowFraction

double oilOutletFlowFraction

Oil outlet valve flow fraction (0.0 = fully closed, 1.0 = fully open).

specifiedStream

String specifiedStream

useTempMultiPhaseCheck

boolean useTempMultiPhaseCheck

waterLevel

double waterLevel

Water level height in meters (bottom of separator to water-oil interface).

waterOutletFlowFraction

double waterOutletFlowFraction

Water outlet valve flow fraction (0.0 = fully closed, 1.0 = fully open).

waterOutStream

StreamInterface waterOutStream

Class neqsim.process.equipment.separator.TwoPhaseSeparator

class TwoPhaseSeparator extends Separator implements Serializable

serialVersionUID:

1000L

Package neqsim.process.equipment.separator.entrainment

Class neqsim.process.equipment.separator.entrainment.DropletSettlingCalculator

class DropletSettlingCalculator extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.entrainment.DropletSettlingCalculator.ApiComplianceResult

class ApiComplianceResult extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

gasLiquidComment

String gasLiquidComment

Human-readable gas section compliance status string.

gasLiquidSectionCompliant

boolean gasLiquidSectionCompliant

True when the gas section meets API 12J criteria.

gravityCutDiameter_um

double gravityCutDiameter_um

Gravity cut diameter [μm] at operating conditions.

kFactorUtilization

double kFactorUtilization

K-factor utilization fraction (operating / maximum API K-factor).

liquidComment

String liquidComment

Human-readable liquid section compliance status string.

liquidSectionCompliant

boolean liquidSectionCompliant

True when the liquid section meets API 12J minimum retention time criteria.

Class neqsim.process.equipment.separator.entrainment.DropletSizeDistribution

class DropletSizeDistribution extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

characteristicDiameter

double characteristicDiameter

Characteristic diameter [m]. For Rosin-Rammler: d_63.2 (63.2% cumulative undersize), for log-normal: d_50 (mass-median diameter).

numberOfClasses

int numberOfClasses

Number of discrete size classes for numerical integration.

spreadParameter

double spreadParameter

Spread parameter. For Rosin-Rammler: q (shape parameter, typically 2.0-4.0). For log-normal: sigma (geometric standard deviation, typically 0.5-1.5).

type

DropletSizeDistribution.DistributionType type

Distribution type.

Class neqsim.process.equipment.separator.entrainment.GradeEfficiencyCurve

class GradeEfficiencyCurve extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

customCurve

double[][] customCurve

User-defined lookup table: {diameter[m], efficiency[0-1]}.

cutDiameter

double cutDiameter

Cut diameter d_50 [m] at which 50% efficiency is achieved.

maxEfficiency

double maxEfficiency

Maximum efficiency (accounts for re-entrainment effects).

minEfficiency

double minEfficiency

Minimum efficiency (leakage floor).

sharpness

double sharpness

Sharpness parameter controlling the steepness of the efficiency curve.

type

GradeEfficiencyCurve.InternalsType type

Type of internals.

Class neqsim.process.equipment.separator.entrainment.InletDeviceModel

class InletDeviceModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bulkSeparationEfficiency

double bulkSeparationEfficiency

deviceType

InletDeviceModel.InletDeviceType deviceType

downstreamDSD

DropletSizeDistribution downstreamDSD

inletMomentum

double inletMomentum

inletNozzleDiameter

double inletNozzleDiameter

momentumFlux

double momentumFlux

nozzleVelocity

double nozzleVelocity

overrideBulkEfficiency

double overrideBulkEfficiency

overrideDsdMultiplier

double overrideDsdMultiplier

pressureDrop

double pressureDrop

Class neqsim.process.equipment.separator.entrainment.MultiphaseFlowRegime

class MultiphaseFlowRegime extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasDensity

double gasDensity

gasSuperficialVelocity

double gasSuperficialVelocity

gasViscosity

double gasViscosity

generatedDSD

DropletSizeDistribution generatedDSD

liquidDensity

double liquidDensity

liquidHoldup

double liquidHoldup

liquidSuperficialVelocity

double liquidSuperficialVelocity

liquidViscosity

double liquidViscosity

pipeDiameter

double pipeDiameter

pipeOrientation

String pipeOrientation

predictedRegime

MultiphaseFlowRegime.FlowRegime predictedRegime

surfaceTension

double surfaceTension

Class neqsim.process.equipment.separator.entrainment.SeparatorGeometryCalculator

class SeparatorGeometryCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

effectiveGasSettlingHeight

double effectiveGasSettlingHeight

effectiveLiquidSettlingHeight

double effectiveLiquidSettlingHeight

gasArea

double gasArea

gasOutletNozzleDiameter

double gasOutletNozzleDiameter

gasResidenceTime

double gasResidenceTime

gasVolume

double gasVolume

gravitySectionLength

double gravitySectionLength

highLiquidLevel

double highLiquidLevel

inletDevicePosition

double inletDevicePosition

inletNozzleDiameter

double inletNozzleDiameter

internalDiameter

double internalDiameter

liquidArea

double liquidArea

liquidOutletNozzleDiameter

double liquidOutletNozzleDiameter

liquidResidenceTime

double liquidResidenceTime

liquidVolume

double liquidVolume

lowLiquidLevel

double lowLiquidLevel

mistEliminatorPosition

double mistEliminatorPosition

normalLiquidLevel

double normalLiquidLevel

oilPadThickness

double oilPadThickness

orientation

String orientation

tangentToTangentLength

double tangentToTangentLength

totalArea

double totalArea

totalVolume

double totalVolume

waterLayerHeight

double waterLayerHeight

weirPosition

double weirPosition

Class neqsim.process.equipment.separator.entrainment.SeparatorInternalsDatabase

class SeparatorInternalsDatabase extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

inletDeviceRecords

List<SeparatorInternalsDatabase.InletDeviceRecord> inletDeviceRecords

Loaded inlet device records.

internalsRecords

List<SeparatorInternalsDatabase.InternalsRecord> internalsRecords

Loaded internals records.

loaded

boolean loaded

Whether data has been loaded.

vendorCurveRecords

List<SeparatorInternalsDatabase.VendorCurveRecord> vendorCurveRecords

Loaded vendor grade-efficiency curve records.

Class neqsim.process.equipment.separator.entrainment.SeparatorInternalsDatabase.InletDeviceRecord

class InletDeviceRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

deviceType

String deviceType

Device type (NONE, DEFLECTOR_PLATE, HALF_PIPE, etc.).

dsdMultiplier

double dsdMultiplier

DSD multiplier (downstream d50 / upstream d50).

material

String material

Material of construction.

maxCapacity

double maxCapacity

Maximum capacity per unit area [m3/s/m2].

maxMomentum_Pa

double maxMomentum_Pa

Maximum recommended momentum [Pa].

minMomentum_Pa

double minMomentum_Pa

Minimum recommended momentum [Pa].

pressureDropCoeff

double pressureDropCoeff

Pressure drop velocity head coefficient.

reference

String reference

Literature reference.

subType

String subType

Subtype description.

typicalBulkEfficiency

double typicalBulkEfficiency

Typical bulk separation efficiency.

Class neqsim.process.equipment.separator.entrainment.SeparatorInternalsDatabase.InternalsRecord

class InternalsRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

d50_um

double d50_um

d50 cut diameter [um].

designStandard

String designStandard

Applicable design standard.

internalsType

String internalsType

Internals type (WIRE_MESH, VANE_PACK, AXIAL_CYCLONE, PLATE_PACK, GRAVITY).

manufacturer

String manufacturer

Manufacturer or source.

material

String material

Material of construction.

maxEfficiency

double maxEfficiency

Maximum efficiency.

maxKFactor

double maxKFactor

Maximum K-factor [m/s].

maxTemperature_C

double maxTemperature_C

Maximum operating temperature [degC].

minKFactor

double minKFactor

Minimum K-factor [m/s].

minThickness_mm

double minThickness_mm

Minimum thickness requirement [mm].

pressureDrop_mbar

double pressureDrop_mbar

Typical pressure drop [mbar].

reference

String reference

Literature reference.

sharpness

double sharpness

Sharpness parameter.

subType

String subType

Subtype description.

weight_kg_m2

double weight_kg_m2

Weight per unit area [kg/m2].

Class neqsim.process.equipment.separator.entrainment.SeparatorInternalsDatabase.VendorCurveRecord

class VendorCurveRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

certificateRef

String certificateRef

Certificate or report reference number.

curveId

String curveId

Unique curve identifier (e.g., "VC001").

diameterPoints_um

double[] diameterPoints_um

Measured droplet diameters [um].

efficiencyPoints

double[] efficiencyPoints

Measured efficiencies [0-1] corresponding to diameterPoints_um.

internalsType

String internalsType

Internals type (WIRE_MESH, VANE_PACK, AXIAL_CYCLONE, PLATE_PACK).

maxKFactor

double maxKFactor

Maximum K-factor at test conditions [m/s].

notes

String notes

Additional notes.

productFamily

String productFamily

Product family or model designation.

testDate

String testDate

Date of factory acceptance test.

testFluid

String testFluid

Test fluid (e.g., "Air-Water", "N2-Exxsol").

testPressure_bar

double testPressure_bar

Test pressure [bar].

testStandard

String testStandard

Test standard used (e.g., "EN 13544 / ISO 29042").

testTemperature_C

double testTemperature_C

Test temperature [degC].

vendorName

String vendorName

Vendor name.

Class neqsim.process.equipment.separator.entrainment.SeparatorPerformanceCalculator

class SeparatorPerformanceCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

applyTurbulenceCorrection

boolean applyTurbulenceCorrection

Whether to apply turbulent diffusion correction to the gravity cut diameter.

flowRegimeCalc

MultiphaseFlowRegime flowRegimeCalc

Flow regime calculator for the inlet pipe.

gasBubbleDSD

DropletSizeDistribution gasBubbleDSD

Inlet droplet size distribution for gas bubbles in liquid.

gasCarryUnderCalibrationFactor

double gasCarryUnderCalibrationFactor

Calibration multiplier for gas carry-under fractions (gas in liquid).

gasInOilFraction

double gasInOilFraction

Calculated gas-in-oil carry-under fraction (volume basis).

gasInWaterFraction

double gasInWaterFraction

Calculated gas-in-water carry-under fraction (volume basis).

gasLiquidDSD

DropletSizeDistribution gasLiquidDSD

Inlet droplet size distribution for liquid-in-gas.

geometryCalc

SeparatorGeometryCalculator geometryCalc

Separator geometry calculator.

gravityCutDiameter

double gravityCutDiameter

Gravity section cut diameter [m].

gravitySectionEfficiency

double gravitySectionEfficiency

Gravity section efficiency for gas-liquid separation.

includeGravitySection

boolean includeGravitySection

Whether to include gravity pre-separation before mist eliminator.

inletDeviceBulkEfficiency

double inletDeviceBulkEfficiency

Inlet device bulk separation efficiency.

inletDeviceModel

InletDeviceModel inletDeviceModel

Inlet device model.

inletFlowRegime

MultiphaseFlowRegime.FlowRegime inletFlowRegime

Flow regime at separator inlet.

inletPipeDiameter

double inletPipeDiameter

Inlet pipe diameter [m] for flow regime prediction.

kFactor

double kFactor

K-factor (Souders-Brown) at operating conditions.

kFactorUtilization

double kFactorUtilization

K-factor utilization (operating K / design K).

liquidInGasCalibrationFactor

double liquidInGasCalibrationFactor

Calibration multiplier for liquid-in-gas carryover fractions.

liquidLiquidCalibrationFactor

double liquidLiquidCalibrationFactor

Calibration multiplier for liquid-liquid cross-contamination fractions.

liquidLiquidGravityEfficiency

double liquidLiquidGravityEfficiency

Liquid-liquid gravity section efficiency.

liquidLiquidResidenceTimeOverride

double liquidLiquidResidenceTimeOverride

Liquid-liquid residence time override [s]. Zero means use geometry-calculated value.

mistEliminatorCurve

GradeEfficiencyCurve mistEliminatorCurve

Grade efficiency curve for the mist eliminator (gas section).

mistEliminatorEfficiency

double mistEliminatorEfficiency

Mist eliminator efficiency.

mistEliminatorFlooded

boolean mistEliminatorFlooded

Whether flooding was detected in the mist eliminator.

oilInGasFraction

double oilInGasFraction

Calculated oil-in-gas entrainment fraction (volume basis).

oilInWaterDSD

DropletSizeDistribution oilInWaterDSD

Inlet droplet size distribution for oil-in-water (three-phase).

oilInWaterFraction

double oilInWaterFraction

Calculated oil-in-water fraction (volume basis).

oilVolumeFraction

double oilVolumeFraction

Oil volume fraction in the liquid phase [0-1] for three-phase calculations. Defaults to 0.5 (equal oil/water split). Set via SeparatorPerformanceCalculator.setOilVolumeFraction(double) when the actual oil/water split is known from the thermodynamic system.

oilWaterCoalescerCurve

GradeEfficiencyCurve oilWaterCoalescerCurve

Grade efficiency curve for oil-water coalescer (if present).

oilWaterInterfacialTension

double oilWaterInterfacialTension

Oil-water interfacial tension [N/m] for liquid-liquid DSD estimation.

overallGasLiquidEfficiency

double overallGasLiquidEfficiency

Overall gas-liquid separation efficiency.

postInletDeviceDSD

DropletSizeDistribution postInletDeviceDSD

DSD after inlet device transformation (intermediate result).

surfaceTension

double surfaceTension

Gas-liquid interfacial tension [N/m] for DSD generation.

useEnhancedCalculation

boolean useEnhancedCalculation

Whether to use the enhanced calculation chain (flow regime + inlet device + geometry).

waterInGasFraction

double waterInGasFraction

Calculated water-in-gas entrainment fraction (volume basis).

waterInOilDSD

DropletSizeDistribution waterInOilDSD

Inlet droplet size distribution for water-in-oil (three-phase).

waterInOilFraction

double waterInOilFraction

Calculated water-in-oil fraction (volume basis).

Class neqsim.process.equipment.separator.entrainment.SeparatorPerformanceCalculator.BatchCalibrationSummary

class BatchCalibrationSummary extends SeparatorPerformanceCalculator.CalibrationSummary implements Serializable

serialVersionUID:

1004L

Serialized Fields

casesProcessed

int casesProcessed

Number of calibration cases processed.

mapeAfter

double mapeAfter

Mean absolute percentage error after calibration [-].

mapeBefore

double mapeBefore

Mean absolute percentage error before calibration [-].

Class neqsim.process.equipment.separator.entrainment.SeparatorPerformanceCalculator.CalibrationCase

class CalibrationCase extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

caseId

String caseId

Optional case identifier.

measuredGasInOil

double measuredGasInOil

measuredGasInWater

double measuredGasInWater

measuredOilInGas

double measuredOilInGas

Measured fractions.

measuredOilInWater

double measuredOilInWater

measuredWaterInGas

double measuredWaterInGas

measuredWaterInOil

double measuredWaterInOil

modeledGasInOil

double modeledGasInOil

modeledGasInWater

double modeledGasInWater

modeledOilInGas

double modeledOilInGas

Modeled fractions.

modeledOilInWater

double modeledOilInWater

modeledWaterInGas

double modeledWaterInGas

modeledWaterInOil

double modeledWaterInOil

Class neqsim.process.equipment.separator.entrainment.SeparatorPerformanceCalculator.CalibrationSummary

class CalibrationSummary extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

gasCarryUnderPointsUsed

int gasCarryUnderPointsUsed

Number of usable points in gas carry-under group.

liquidInGasPointsUsed

int liquidInGasPointsUsed

Number of usable points in liquid-in-gas group.

liquidLiquidPointsUsed

int liquidLiquidPointsUsed

Number of usable points in liquid-liquid group.

newGasCarryUnderFactor

double newGasCarryUnderFactor

New gas carry-under factor.

newLiquidInGasFactor

double newLiquidInGasFactor

New liquid-in-gas factor.

newLiquidLiquidFactor

double newLiquidLiquidFactor

New liquid-liquid factor.

previousGasCarryUnderFactor

double previousGasCarryUnderFactor

Previous gas carry-under factor.

previousLiquidInGasFactor

double previousLiquidInGasFactor

Previous liquid-in-gas factor.

previousLiquidLiquidFactor

double previousLiquidLiquidFactor

Previous liquid-liquid factor.

Package neqsim.process.equipment.separator.sectiontype

Class neqsim.process.equipment.separator.sectiontype.ManwaySection

class ManwaySection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.sectiontype.MeshSection

class MeshSection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.sectiontype.NozzleSection

class NozzleSection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.sectiontype.PackedSection

class PackedSection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.sectiontype.SeparatorSection

class SeparatorSection extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcEfficiency

boolean calcEfficiency

efficiency

double efficiency

outerDiameter

double outerDiameter

pressureDrop

double pressureDrop

separator

Separator separator

type

String type

Class neqsim.process.equipment.separator.sectiontype.ValveSection

class ValveSection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.separator.sectiontype.VaneSection

class VaneSection extends SeparatorSection implements Serializable

serialVersionUID:

1000L

Package neqsim.process.equipment.splitter

Class neqsim.process.equipment.splitter.BiogasUpgrader

class BiogasUpgrader extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1003L

Serialized Fields

biomethaneCO2Percent

double biomethaneCO2Percent

CO2 content in biomethane product (vol%).

biomethaneFlowNm3PerHr

double biomethaneFlowNm3PerHr

Biomethane product flow rate in Nm3/hr.

biomethaneMethanePercent

double biomethaneMethanePercent

Methane content in biomethane product (vol%).

biomethaneOutStream

StreamInterface biomethaneOutStream

Upgraded biomethane (methane-rich) outlet stream.

co2RemovalEfficiency

double co2RemovalEfficiency

CO2 removal efficiency override (NaN = use technology default).

energyConsumptionKW

double energyConsumptionKW

Energy consumption in kW.

h2sRemovalEfficiency

double h2sRemovalEfficiency

H2S removal efficiency override (NaN = use technology default).

hasRun

boolean hasRun

Whether the upgrader has been run.

inletStream

StreamInterface inletStream

Inlet raw biogas stream.

methaneRecovery

double methaneRecovery

Methane recovery override (NaN = use technology default).

methaneSlipPercent

double methaneSlipPercent

Methane slip to off-gas as percent of inlet methane.

offgasOutStream

StreamInterface offgasOutStream

Off-gas (CO2-rich) outlet stream.

outletPressureBara

double outletPressureBara

Target outlet pressure for biomethane in bara.

rawBiogasFlowNm3PerHr

double rawBiogasFlowNm3PerHr

Raw biogas flow rate in Nm3/hr.

specificEnergyKWhPerNm3

double specificEnergyKWhPerNm3

Specific energy override in kWh/Nm3 (NaN = use technology default).

technology

BiogasUpgrader.UpgradingTechnology technology

Upgrading technology.

wobbeIndex

double wobbeIndex

Wobbe index of biomethane product in MJ/Nm3.

Class neqsim.process.equipment.splitter.ComponentSplitter

class ComponentSplitter extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inletStream

StreamInterface inletStream

splitFactor

double[] splitFactor

splitNumber

int splitNumber

splitStream

StreamInterface[] splitStream

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.splitter.Splitter

class Splitter extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

designPressureDrop

double designPressureDrop

Design pressure drop [bar].

flowRates

double[] flowRates

flowUnit

String flowUnit

gasSystem

SystemInterface gasSystem

inletStream

StreamInterface inletStream

lastComposition

double[] lastComposition

lastFlowRate

double lastFlowRate

lastPressure

double lastPressure

lastTemperature

double lastTemperature

liquidSystem

SystemInterface liquidSystem

maxDesignVelocity

double maxDesignVelocity

Maximum design velocity [m/s].

mechanicalDesign

SplitterMechanicalDesign mechanicalDesign

Mechanical design for the splitter.

oldSplitFactor

double[] oldSplitFactor

splitFactor

double[] splitFactor

splitNumber

int splitNumber

splitStream

StreamInterface[] splitStream

splitterCapacityAnalysisEnabled

boolean splitterCapacityAnalysisEnabled

Whether capacity analysis is enabled.

splitterCapacityConstraints

Map<String, CapacityConstraint> splitterCapacityConstraints

Splitter capacity constraints map.

thermoSystem

SystemInterface thermoSystem

thermoSystemCloned

SystemInterface thermoSystemCloned

waterSystem

SystemInterface waterSystem

Package neqsim.process.equipment.stream

Class neqsim.process.equipment.stream.EnergyStream

class EnergyStream extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

duty

double duty

name

String name

Class neqsim.process.equipment.stream.EquilibriumStream

class EquilibriumStream extends Stream implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.stream.IronIonSaturationStream

class IronIonSaturationStream extends Stream implements Serializable

serialVersionUID:

1000L

Serialized Fields

reactiveThermoSystem

SystemInterface reactiveThermoSystem

Class neqsim.process.equipment.stream.NeqStream

class NeqStream extends Stream implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.stream.ScalePotentialCheckStream

class ScalePotentialCheckStream extends Stream implements Serializable

serialVersionUID:

1000L

Serialized Fields

reactiveThermoSystem

SystemInterface reactiveThermoSystem

Class neqsim.process.equipment.stream.Stream

class Stream extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasQuality

double gasQuality

lastComposition

double[] lastComposition

lastFlowRate

double lastFlowRate

lastPressure

double lastPressure

lastSpecification

String lastSpecification

Cached specification for skip-if-unchanged check in Stream.run(UUID).

lastTemperature

double lastTemperature

stream

StreamInterface stream

streamNumber

int streamNumber

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.stream.VirtualStream

class VirtualStream extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

composition

double[] composition

compositionUnit

String compositionUnit

flowRate

double flowRate

flowUnit

String flowUnit

outStream

StreamInterface outStream

pressure

double pressure

pressureUnit

String pressureUnit

refStream

StreamInterface refStream

setComposition

boolean setComposition

setFlowRate

boolean setFlowRate

setPressure

boolean setPressure

setTemperature

boolean setTemperature

temperature

double temperature

temperatureUnit

String temperatureUnit

Package neqsim.process.equipment.subsea

Class neqsim.process.equipment.subsea.FlexiblePipe

class FlexiblePipe extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

application

FlexiblePipe.Application application

Application type.

bendStiffenerLength

double bendStiffenerLength

Bend stiffener length in meters.

burstPressure

double burstPressure

Burst pressure in bara.

carcassMaterial

String carcassMaterial

Carcass material.

co2ContentPercent

double co2ContentPercent

CO2 content in %.

collapsePressure

double collapsePressure

Collapse pressure in bara.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeightPerMeter

double dryWeightPerMeter

Dry weight per meter in kg/m.

endFittingFlangeRating

String endFittingFlangeRating

End fitting flange rating.

endFittingType

String endFittingType

End fitting type.

floodedWeightPerMeter

double floodedWeightPerMeter

Flooded weight per meter in kg/m.

h2sContentPercent

double h2sContentPercent

H2S content in %.

hasBendStiffener

boolean hasBendStiffener

Whether has bend stiffener.

hasCarcass

boolean hasCarcass

Whether has carcass.

hasPressureArmor

boolean hasPressureArmor

Whether has pressure armor.

innerDiameterInches

double innerDiameterInches

Inner diameter in inches.

internalSheathMaterial

String internalSheathMaterial

Internal sheath material.

length

double length

Length in meters.

maxTensionKN

double maxTensionKN

Maximum tension capacity in kN.

mechanicalDesign

FlexiblePipeMechanicalDesign mechanicalDesign

Mechanical design instance.

minDesignTemperature

double minDesignTemperature

Minimum design temperature in Celsius.

minimumBendRadius

double minimumBendRadius

Minimum bend radius in meters.

outerDiameterMm

double outerDiameterMm

Outer diameter in mm.

outerSheathMaterial

String outerSheathMaterial

Outer sheath material.

pipeType

FlexiblePipe.PipeType pipeType

Pipe type.

pressureArmorMaterial

String pressureArmorMaterial

Pressure armor material.

riserConfiguration

FlexiblePipe.RiserConfiguration riserConfiguration

Riser configuration.

sandContentPpmw

double sandContentPpmw

Maximum sand content in ppmw.

serviceType

FlexiblePipe.ServiceType serviceType

Service type.

sourService

boolean sourService

Whether sour service.

storageBendRadius

double storageBendRadius

Storage minimum bend radius in meters.

submergedWeightPerMeter

double submergedWeightPerMeter

Submerged weight per meter in kg/m.

tensileArmorLayers

int tensileArmorLayers

Number of tensile armor layers.

tensileArmorMaterial

String tensileArmorMaterial

Tensile armor material.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.subsea.FloatingSubstructure

class FloatingSubstructure extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

ballastCogAboveKeel

double ballastCogAboveKeel

Ballast center of gravity above keel [m].

ballastDensity

double ballastDensity

Ballast density (seawater or solid) [kg/m3].

ballastMass

double ballastMass

Ballast mass [tonnes] — calculated or set.

bargeDepth

double bargeDepth

Barge height [m].

bargeLength

double bargeLength

Barge length [m].

bargeWidth

double bargeWidth

Barge width [m].

centerOfBuoyancy

double centerOfBuoyancy

Center of buoyancy above keel (KB) [m].

centerOfGravity

double centerOfGravity

Center of gravity above keel (KG) [m].

columnDiameter

double columnDiameter

Column diameter [m] (semi-sub/spar).

columnHeight

double columnHeight

Column height [m].

columnSpacing

double columnSpacing

Column spacing (center-to-center) [m] (semi-sub).

conceptType

FloatingSubstructure.ConceptType conceptType

Concept type.

designWindThrust

double designWindThrust

Design wind thrust [kN] (at rated wind speed).

displacedVolume

double displacedVolume

Displaced volume [m3].

displacement

double displacement

Total displacement [tonnes].

draft

double draft

Operating draft [m].

estimatedCost

double estimatedCost

Estimated substructure cost [MNOK].

excessBuoyancy

double excessBuoyancy

Excess buoyancy for TLP [kN].

freeboard

double freeboard

Freeboard [m].

heaveNaturalPeriod

double heaveNaturalPeriod

Natural period in heave [s].

heavePlateDiameter

double heavePlateDiameter

Heave plate diameter [m] (semi-sub/spar, 0 = none).

hubHeight

double hubHeight

Hub height above sea level [m].

metacentricHeight

double metacentricHeight

Metacentric height (GM) [m].

metacentricRadius

double metacentricRadius

Metacentric radius (BM) [m].

numberOfColumns

int numberOfColumns

Number of columns (semi-sub).

peakSpectralPeriod

double peakSpectralPeriod

Peak spectral period [s].

pitchNaturalPeriod

double pitchNaturalPeriod

Natural period in pitch [s].

pontoonHeight

double pontoonHeight

Pontoon height [m] (semi-sub).

pontoonWidth

double pontoonWidth

Pontoon width [m] (semi-sub).

seawaterDensity

double seawaterDensity

Seawater density [kg/m3].

significantWaveHeight

double significantWaveHeight

Significant wave height, 100-year [m].

sparHeight

double sparHeight

Spar total height [m] (spar concept only).

sparUpperDiameter

double sparUpperDiameter

Spar upper diameter [m] (tapered spar).

staticTiltAngle

double staticTiltAngle

Platform tilt under wind thrust [deg].

steelDensity

double steelDensity

Steel density [kg/m3].

steelWeight

double steelWeight

Steel weight of substructure [tonnes].

totalMass

double totalMass

Total mass (structural + equipment + ballast) [tonnes].

towerCogAboveKeel

double towerCogAboveKeel

Tower center of gravity above keel [m] (set during calc if not specified).

towerMass

double towerMass

Tower mass [tonnes].

turbineMass

double turbineMass

Turbine nacelle + rotor mass [tonnes].

waterDepth

double waterDepth

Water depth at site [m].

waterplaneArea

double waterplaneArea

Waterplane area [m2].

waterplaneSecondMoment

double waterplaneSecondMoment

Second moment of waterplane area [m4].

Class neqsim.process.equipment.subsea.MooringSystem

class MooringSystem extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

anchorRadius

double anchorRadius

Anchor radius (horizontal distance fairlead to anchor) [m].

anchorTension

double anchorTension

Anchor tension (horizontal at seabed) per line [kN].

anchorType

MooringSystem.AnchorType anchorType

Anchor type.

bottomChainLength

double bottomChainLength

Chain segment length (at seabed end) [m].

chainDiameter

double chainDiameter

Chain nominal diameter [m].

chainGrade

int chainGrade

Chain grade (R3=3, R4=4, R5=5).

designHorizontalForce

double designHorizontalForce

Design horizontal force per line at fairlead [kN].

designVerticalForce

double designVerticalForce

Design vertical force per line at fairlead [kN].

estimatedCost

double estimatedCost

Estimated mooring system cost [MNOK].

fairleadAngle

double fairleadAngle

Catenary angle at fairlead [deg].

fairleadDepth

double fairleadDepth

Fairlead depth below waterline [m].

fairleadTension

double fairleadTension

Fairlead tension (resultant) per line [kN].

lineLength

double lineLength

Total line length per line [m].

lineType

MooringSystem.LineType lineType

Line type.

lineWeightPerMeter

double lineWeightPerMeter

Line weight in water per unit length [kN/m].

maxLineTension

double maxLineTension

Maximum line tension [kN].

maxOffset

double maxOffset

Maximum vessel offset [m] (at design load).

middleSegmentLength

double middleSegmentLength

Polyester / wire segment length [m].

minimumBreakingLoad

double minimumBreakingLoad

Minimum breaking load of critical section [kN].

numberOfLines

int numberOfLines

Number of mooring lines.

polyesterDiameter

double polyesterDiameter

Polyester rope diameter [m] (for hybrid lines).

requiredAnchorCapacity

double requiredAnchorCapacity

Anchor holding capacity required [kN].

requiredSafetyFactor

double requiredSafetyFactor

Required safety factor per DNV-OS-E301 (ULS).

restoringStiffness

double restoringStiffness

Restoring force coefficient (horizontal stiffness) [kN/m].

safetyFactor

double safetyFactor

Safety factor (MBL / max tension).

seawaterDensity

double seawaterDensity

Seawater density [kg/m3].

soilType

String soilType

Seabed soil type for anchor design.

topChainLength

double topChainLength

Top chain segment length [m].

totalWeight

double totalWeight

Total mooring system steel weight [tonnes].

touchdownLength

double touchdownLength

Touchdown length (line lying on seabed) [m].

waterDepth

double waterDepth

Water depth [m].

wireRopeDiameter

double wireRopeDiameter

Wire rope diameter [m].

Class neqsim.process.equipment.subsea.PLEM

class PLEM extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

branchIsolationValves

boolean branchIsolationValves

Whether each branch has isolation valve.

branchSizeInches

double branchSizeInches

Branch pipe size in inches.

branchValves

List<ThrottlingValve> branchValves

Internal branch isolation valves.

configurationType

PLEM.ConfigurationType configurationType

Configuration type.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeight

double dryWeight

Dry weight in tonnes.

foundationType

String foundationType

Foundation type (gravity, piled, suction).

headerIsolationValves

boolean headerIsolationValves

Whether header has isolation valves.

headerSizeInches

double headerSizeInches

Header pipe size in inches.

inletStreams

List<StreamInterface> inletStreams

Inlet streams.

internalMixer

Mixer internalMixer

Internal mixer for commingling.

internalSplitter

Splitter internalSplitter

Internal splitter for distribution.

mechanicalDesign

PLEMMechanicalDesign mechanicalDesign

Mechanical design instance.

numberOfSlots

int numberOfSlots

Number of connection slots.

outletStream

StreamInterface outletStream

Outlet stream.

structureHeight

double structureHeight

Structure height in meters.

structureLength

double structureLength

Structure length in meters.

structureWidth

double structureWidth

Structure width in meters.

submergedWeight

double submergedWeight

Submerged weight in tonnes.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.subsea.PLET

class PLET extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

actuatorType

String actuatorType

Valve actuator type (ROV, hydraulic).

connectionType

PLET.ConnectionType connectionType

Connection type.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeight

double dryWeight

Dry weight in tonnes.

hasFutureTieIn

boolean hasFutureTieIn

Whether PLET is configured for future tie-in.

hasIsolationValve

boolean hasIsolationValve

Whether PLET has isolation valve.

hasPiggingFacility

boolean hasPiggingFacility

Whether PLET has pigging facilities.

isolationValve

ThrottlingValve isolationValve

Internal isolation valve.

mechanicalDesign

PLETMechanicalDesign mechanicalDesign

Mechanical design instance.

nominalBoreInches

double nominalBoreInches

Nominal bore size in inches.

numberOfHubs

int numberOfHubs

Number of connection hubs.

piggingType

String piggingType

Pig launcher/receiver type.

spareHubs

int spareHubs

Number of spare hubs for future connections.

structureHeight

double structureHeight

Structure height in meters.

structureLength

double structureLength

Structure length in meters.

structureType

PLET.StructureType structureType

Structure type.

structureWidth

double structureWidth

Structure width in meters.

submergedWeight

double submergedWeight

Submerged weight in tonnes.

valveType

String valveType

Valve type (ball, gate).

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.subsea.SimpleFlowLine

class SimpleFlowLine extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

height

double height

length

double length

outletTemperature

double outletTemperature

pipeline

AdiabaticTwoPhasePipe pipeline

Class neqsim.process.equipment.subsea.SubseaBooster

class SubseaBooster extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

boosterType

SubseaBooster.BoosterType boosterType

Booster type.

compressorType

SubseaBooster.CompressorType compressorType

Compressor type (for compressor booster).

coolingType

String coolingType

Cooling type.

designFlowRate

double designFlowRate

Design flow rate in m³/h.

designGVF

double designGVF

Design GVF (gas volume fraction) for multiphase.

designInletPressure

double designInletPressure

Design inlet pressure in bara.

designLifeYears

int designLifeYears

Design life in years.

designTemperature

double designTemperature

Design temperature in Celsius.

differentialPressure

double differentialPressure

Differential pressure in bar (for pump).

driveType

SubseaBooster.DriveType driveType

Drive type.

efficiency

double efficiency

Efficiency.

frequency

double frequency

Frequency in Hz.

inletConnectionInches

double inletConnectionInches

Inlet connection size in inches.

internalCompressor

Compressor internalCompressor

Internal compressor (for gas).

internalPump

Pump internalPump

Internal pump (for liquid/multiphase).

maxGVF

double maxGVF

Maximum GVF tolerance.

maxSpeedRPM

double maxSpeedRPM

Maximum speed in RPM.

mechanicalDesign

SubseaBoosterMechanicalDesign mechanicalDesign

Mechanical design instance.

moduleDiameter

double moduleDiameter

Module footprint diameter in meters.

moduleDryWeight

double moduleDryWeight

Module dry weight in tonnes.

moduleHeight

double moduleHeight

Module height in meters.

moduleSubmergedWeight

double moduleSubmergedWeight

Module submerged weight in tonnes.

motorTempLimit

double motorTempLimit

Motor winding temperature limit in Celsius.

mtbfHours

double mtbfHours

MTBF (Mean Time Between Failures) in hours.

numberOfStages

int numberOfStages

Number of pump/compressor stages.

operatingVoltage

double operatingVoltage

Operating voltage in V.

outletConnectionInches

double outletConnectionInches

Outlet connection size in inches.

outletPressure

double outletPressure

Target outlet pressure in bara.

powerRatingMW

double powerRatingMW

Power rating in MW.

pressureRatio

double pressureRatio

Pressure ratio (for compressor).

pumpType

SubseaBooster.PumpType pumpType

Pump type (for pump booster).

redundantMotor

boolean redundantMotor

Whether has redundant motor.

retrievable

boolean retrievable

Whether retrievable.

speedRPM

double speedRPM

Speed in RPM.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.subsea.SubseaJumper

class SubseaJumper extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

contentWeight

double contentWeight

Content weight in tonnes.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeight

double dryWeight

Dry weight in tonnes.

flexibleMinBendRadius

double flexibleMinBendRadius

Minimum bend radius for flexible in meters.

flexibleStructure

String flexibleStructure

Flexible pipe structure type.

horizontalSpan

double horizontalSpan

Horizontal span in meters.

inletHubSizeInches

double inletHubSizeInches

Inlet hub size in inches.

inletHubType

SubseaJumper.HubType inletHubType

Inlet hub type.

installationMethod

String installationMethod

Installation method.

jumperType

SubseaJumper.JumperType jumperType

Jumper type.

length

double length

Jumper length in meters.

materialGrade

String materialGrade

Material grade (e.g., X65, 316L, 6Mo).

maxCurvature

double maxCurvature

Maximum curvature for flexible.

mechanicalDesign

SubseaJumperMechanicalDesign mechanicalDesign

Mechanical design instance.

minimumBendRadius

double minimumBendRadius

Minimum bend radius in meters.

nominalBoreInches

double nominalBoreInches

Nominal bore size in inches.

numberOfBends

int numberOfBends

Number of bends.

outerDiameterInches

double outerDiameterInches

Outer diameter in inches.

outletHubSizeInches

double outletHubSizeInches

Outlet hub size in inches.

outletHubType

SubseaJumper.HubType outletHubType

Outlet hub type.

retrievable

boolean retrievable

Whether retrievable.

rovInstalled

boolean rovInstalled

Whether installed by ROV.

submergedWeight

double submergedWeight

Submerged weight in tonnes.

verticalRise

double verticalRise

Vertical rise in meters.

wallThicknessMm

double wallThicknessMm

Wall thickness in mm.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.equipment.subsea.SubseaManifold

class SubseaManifold extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

branchSizeInches

double branchSizeInches

Branch/jumper connection size in inches.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeight

double dryWeight

Dry weight in tonnes.

foundationType

String foundationType

Foundation type.

hasInjectionHeader

boolean hasInjectionHeader

Whether has injection header.

hasServiceHeader

boolean hasServiceHeader

Whether has service/utility header.

hasTestHeader

boolean hasTestHeader

Whether has test header.

manifoldType

SubseaManifold.ManifoldType manifoldType

Manifold type.

mechanicalDesign

SubseaManifoldMechanicalDesign mechanicalDesign

Mechanical design instance.

numberOfSlots

int numberOfSlots

Number of well slots.

productionHeaderSizeInches

double productionHeaderSizeInches

Production header size in inches.

productionMixer

Mixer productionMixer

Production header mixer.

productionStream

StreamInterface productionStream

Production outlet stream.

structureHeight

double structureHeight

Structure height in meters.

structureLength

double structureLength

Structure length in meters.

structureWidth

double structureWidth

Structure width in meters.

submergedWeight

double submergedWeight

Submerged weight in tonnes.

testHeaderSizeInches

double testHeaderSizeInches

Test header size in inches.

testMixer

Mixer testMixer

Test header mixer.

testStream

StreamInterface testStream

Test outlet stream.

waterDepth

double waterDepth

Water depth in meters.

wellSlotMap

Map<String,Integer> wellSlotMap

Map of well names to slot numbers.

Class neqsim.process.equipment.subsea.SubseaPowerCable

class SubseaPowerCable extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

ampacity

double ampacity

Calculated cable ampacity [A].

burialDepth

double burialDepth

Burial depth [m].

cableCost

double cableCost

Cable cost estimate [MUSD].

cableType

SubseaPowerCable.CableType cableType

Cable type.

conductorArea

double conductorArea

Conductor cross-section area [mm2].

conductorResistivity

double conductorResistivity

Conductor material resistivity at 20C [ohm mm2/m].

conductorTemperature

double conductorTemperature

Operating temperature of conductor [C].

dielectricLoss

double dielectricLoss

Calculated dielectric losses [MW].

efficiency

double efficiency

Efficiency (1 - loss fraction).

frequency

double frequency

Frequency [Hz] (50 or 60).

length

double length

Cable length [km].

numberOfCables

int numberOfCables

Number of cables (for redundancy).

numberOfCores

int numberOfCores

Number of cores per cable (1 for HVDC, 3 for AC).

operatingCurrent

double operatingCurrent

Operating current [A].

powerFactor

double powerFactor

Power factor (for AC cables).

powerRating

double powerRating

Power transmitted [MW].

reactivepower

double reactivepower

Reactive power generated by cable capacitance [MVAr].

resistiveLoss

double resistiveLoss

Calculated resistive losses [MW].

seawaterTemperature

double seawaterTemperature

Seawater temperature [C].

tempCoefficient

double tempCoefficient

Temperature coefficient of resistance [1/K].

totalPowerLoss

double totalPowerLoss

Calculated total power loss [MW].

voltage

double voltage

Rated voltage [kV].

voltageDrop

double voltageDrop

Calculated voltage drop [%].

waterDepth

double waterDepth

Water depth [m].

Class neqsim.process.equipment.subsea.SubseaTree

class SubseaTree extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

actuatorType

String actuatorType

Actuator type for valves.

amvOpen

boolean amvOpen

Annulus master valve (AMV).

awvOpen

boolean awvOpen

Annulus wing valve (AWV).

boreSizeInches

double boreSizeInches

Bore size in inches.

chemicalInjectionPoints

int chemicalInjectionPoints

Number of chemical injection points.

chokeOpening

double chokeOpening

connectorType

String connectorType

Tree connector type.

designPressure

double designPressure

Design pressure in bara.

designTemperature

double designTemperature

Design temperature in Celsius.

dryWeight

double dryWeight

Dry weight in tonnes.

failSafeClose

boolean failSafeClose

Whether has fail-safe close.

flowlineConnectionSizeInches

double flowlineConnectionSizeInches

Flowline connection size in inches.

flowlineConnectionType

String flowlineConnectionType

Flowline connection type.

hasAnnulusPressure

boolean hasAnnulusPressure

Whether has annulus pressure monitoring.

hasDownholePressure

boolean hasDownholePressure

Whether has downhole pressure gauge.

hasDownholeTemperature

boolean hasDownholeTemperature

Whether has downhole temperature gauge.

mechanicalDesign

SubseaTreeMechanicalDesign mechanicalDesign

Mechanical design instance.

pmvOpen

boolean pmvOpen

pressureRating

SubseaTree.PressureRating pressureRating

Pressure rating.

productionChoke

ThrottlingValve productionChoke

Production choke.

productionMasterValve

ThrottlingValve productionMasterValve

Production master valve (PMV).

productionWingValve

ThrottlingValve productionWingValve

Production wing valve (PWV).

psvOpen

boolean psvOpen

Production swab valve (PSV).

pwvOpen

boolean pwvOpen

submergedWeight

double submergedWeight

Submerged weight in tonnes.

treeDiameter

double treeDiameter

Tree footprint (diameter) in meters.

treeHeight

double treeHeight

Tree height in meters.

treeType

SubseaTree.TreeType treeType

Tree type.

waterDepth

double waterDepth

Water depth in meters.

xovOpen

boolean xovOpen

Crossover valve (XOV).

Class neqsim.process.equipment.subsea.SubseaWell

class SubseaWell extends TwoPortEquipment implements Serializable

serialVersionUID:

1001L

Serialized Fields

completionDays

double completionDays

Estimated completion duration in days.

completionType

SubseaWell.CompletionType completionType

Completion type.

conductorDepth

double conductorDepth

Conductor casing depth in meters MD.

conductorOD

double conductorOD

Conductor casing OD in inches.

drillingDays

double drillingDays

Estimated drilling duration in days.

hasDHSV

boolean hasDHSV

Whether well has DHSV (downhole safety valve / SSSV).

height

double height

Height (elevation change) in meters.

intermediateCasingDepth

double intermediateCasingDepth

Intermediate casing depth in meters MD.

intermediateCasingOD

double intermediateCasingOD

Intermediate casing OD in inches.

kickOffPoint

double kickOffPoint

Kick-off point depth in meters MD.

length

double length

Well length (measured depth of tubing) in meters.

maxBottomholeTemperature

double maxBottomholeTemperature

Maximum expected bottomhole temperature in Celsius.

maxInclination

double maxInclination

Maximum inclination angle in degrees.

maxWellheadPressure

double maxWellheadPressure

Maximum expected wellhead pressure in bara.

measuredDepth

double measuredDepth

Measured depth (MD) of the well in meters.

mechanicalDesign

WellMechanicalDesign mechanicalDesign

Mechanical design instance.

pipeline

AdiabaticTwoPhasePipe pipeline

Internal pipeline for tubing flow model.

primaryBarrierElements

int primaryBarrierElements

Number of well barrier elements in primary barrier.

productionCasingDepth

double productionCasingDepth

Production casing depth in meters MD.

productionCasingOD

double productionCasingOD

Production casing OD in inches.

productionLinerDepth

double productionLinerDepth

Production liner depth in meters MD (0 = no liner).

productionLinerOD

double productionLinerOD

Production liner OD in inches (0 = no liner).

reservoirPressure

double reservoirPressure

Reservoir pressure in bara.

reservoirTemperature

double reservoirTemperature

Reservoir temperature in Celsius.

rigDayRate

double rigDayRate

Rig day rate in USD.

rigType

SubseaWell.RigType rigType

Rig type.

secondaryBarrierElements

int secondaryBarrierElements

Number of well barrier elements in secondary barrier.

surfaceCasingDepth

double surfaceCasingDepth

Surface casing depth in meters MD.

surfaceCasingOD

double surfaceCasingOD

Surface casing OD in inches.

trueVerticalDepth

double trueVerticalDepth

True vertical depth (TVD) in meters.

tubingGrade

String tubingGrade

Tubing grade per API 5CT.

tubingOD

double tubingOD

Tubing OD in inches.

tubingWeight

double tubingWeight

Tubing weight in lb/ft.

waterDepth

double waterDepth

Water depth at wellhead in meters.

wellType

SubseaWell.WellType wellType

Well type.

Class neqsim.process.equipment.subsea.Umbilical

class Umbilical extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

armorWireMaterial

String armorWireMaterial

Armor wire material.

chemicalLineCount

int chemicalLineCount

Number of chemical injection lines.

crossSectionType

Umbilical.CrossSectionType crossSectionType

Cross-section type.

dryWeightPerMeter

double dryWeightPerMeter

Dry weight per meter in kg/m.

electricalCableCount

int electricalCableCount

Number of electrical cables.

fiberOpticCount

int fiberOpticCount

Number of fiber optic cables.

hasArmorWires

boolean hasArmorWires

Whether has armor wires.

hydraulicLineCount

int hydraulicLineCount

Number of hydraulic lines.

installationMethod

String installationMethod

Installation method.

installationVessel

String installationVessel

Installation vessel type.

length

double length

Umbilical length in meters.

maxInstallationTensionKN

double maxInstallationTensionKN

Maximum installation tension in kN.

mechanicalDesign

UmbilicalMechanicalDesign mechanicalDesign

Mechanical design instance.

minimumBendRadius

double minimumBendRadius

Minimum bend radius in meters.

outerSheathMaterial

String outerSheathMaterial

Outer sheath material.

outerSheathThicknessMm

double outerSheathThicknessMm

Outer sheath thickness in mm.

overallDiameterMm

double overallDiameterMm

Overall outer diameter in mm.

submergedWeightPerMeter

double submergedWeightPerMeter

Submerged weight per meter in kg/m.

umbilicalType

Umbilical.UmbilicalType umbilicalType

Umbilical type.

waterDepth

double waterDepth

Water depth in meters.

Package neqsim.process.equipment.tank

Class neqsim.process.equipment.tank.LNGTank

class LNGTank extends Tank implements Serializable

serialVersionUID:

1003L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature (K).

bogMassFlowRate

double bogMassFlowRate

Calculated BOG mass flow rate (kg/hr).

bogStream

StreamInterface bogStream

BOG outlet stream.

boilOffRatePctPerDay

double boilOffRatePctPerDay

Calculated boil-off rate (%/day of LNG mass).

heatIngress

double heatIngress

Calculated heat ingress (W).

insulationType

LNGTank.InsulationType insulationType

Tank insulation type.

latentHeat

double latentHeat

Latent heat of vaporisation of LNG (J/kg).

lngInventory

double lngInventory

Total LNG inventory (kg).

lngProductStream

StreamInterface lngProductStream

LNG liquid outlet stream.

lngTemperature

double lngTemperature

LNG storage temperature (K). Default -162 C.

overallHeatTransferCoeff

double overallHeatTransferCoeff

Overall heat transfer coefficient through insulation (W/m2/K).

storagePressure

double storagePressure

LNG storage pressure (bara).

tankSurfaceArea

double tankSurfaceArea

Tank outer surface area (m2).

Class neqsim.process.equipment.tank.Tank

class Tank extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoSized

boolean autoSized

Whether tank has been auto-sized.

designLiquidLevel

double designLiquidLevel

Design liquid level (fraction).

designResidenceTime

double designResidenceTime

Design liquid residence time (seconds).

designVolume

double designVolume

Design volume (m3).

efficiency

double efficiency

gasCarryunderFraction

double gasCarryunderFraction

gasOutStream

Stream gasOutStream

gasSystem

SystemInterface gasSystem

gasVolume

double gasVolume

heatTransferNumber

double heatTransferNumber

inletStreamMixer

Mixer inletStreamMixer

liquidCarryoverFraction

double liquidCarryoverFraction

liquidLevel

double liquidLevel

liquidOutStream

Stream liquidOutStream

liquidSystem

SystemInterface liquidSystem

liquidVolume

double liquidVolume

maxLiquidLevel

double maxLiquidLevel

Maximum liquid level allowed (fraction).

mechanicalDesign

TankMechanicalDesign mechanicalDesign

Mechanical design for the tank.

minLiquidLevel

double minLiquidLevel

Minimum liquid level allowed (fraction).

minResidenceTime

double minResidenceTime

Minimum residence time allowed (seconds).

numberOfInputStreams

int numberOfInputStreams

separatorDiameter

double separatorDiameter

separatorLength

double separatorLength

steelCp

double steelCp

steelWallArea

double steelWallArea

steelWallMass

double steelWallMass

steelWallTemperature

double steelWallTemperature

tankCapacityAnalysisEnabled

boolean tankCapacityAnalysisEnabled

Whether capacity analysis is enabled.

tankCapacityConstraints

Map<String, CapacityConstraint> tankCapacityConstraints

Tank capacity constraints map.

thermoSystem

SystemInterface thermoSystem

thermoSystemCloned

SystemInterface thermoSystemCloned

volume

double volume

waterSystem

SystemInterface waterSystem

Class neqsim.process.equipment.tank.VesselDepressurization

class VesselDepressurization extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientTemperature

double ambientTemperature

backPressure

double backPressure

calculateExternalHTC

boolean calculateExternalHTC

calculationType

VesselDepressurization.CalculationType calculationType

currentTime

double currentTime

dischargeCoefficient

double dischargeCoefficient

externalHeatTransferCoeff

double externalHeatTransferCoeff

fireCase

boolean fireCase

fireConvectionCoeff

double fireConvectionCoeff

fireHeatFlux

double fireHeatFlux

fireModelType

VesselDepressurization.FireModelType fireModelType

fireType

VesselDepressurization.FireType fireType

fixedInternalHTC

double fixedInternalHTC

fixedMassFlowRate

double fixedMassFlowRate

fixedQ

double fixedQ

fixedU

double fixedU

flameEmissivity

double flameEmissivity

flameTemperature

double flameTemperature

flowDirection

VesselDepressurization.FlowDirection flowDirection

gasWallTemperature

double gasWallTemperature

gasWallTemperatureHistory

List<Double> gasWallTemperatureHistory

hasLiner

boolean hasLiner

heatRateHistory

List<Double> heatRateHistory

heatTransferType

VesselDepressurization.HeatTransferType heatTransferType

incidentHeatFlux

double incidentHeatFlux

initialBeta

double initialBeta

initialLiquidLevel

double initialLiquidLevel

inletFluid

SystemInterface inletFluid

inletTemperature

double inletTemperature

linerDensity

double linerDensity

linerHeatCapacity

double linerHeatCapacity

linerThermalConductivity

double linerThermalConductivity

linerThickness

double linerThickness

liquidLevelHistory

List<Double> liquidLevelHistory

liquidVolumeFraction

double liquidVolumeFraction

liquidWallTemperature

double liquidWallTemperature

liquidWallTemperatureHistory

List<Double> liquidWallTemperatureHistory

massFlowHistory

List<Double> massFlowHistory

massHistory

List<Double> massHistory

orientation

VesselDepressurization.VesselOrientation orientation

orificeDiameter

double orificeDiameter

outletStream

StreamInterface outletStream

pressureHistory

List<Double> pressureHistory

surfaceAbsorptivity

double surfaceAbsorptivity

surfaceEmissivity

double surfaceEmissivity

targetPressure

double targetPressure

targetPressureReached

boolean targetPressureReached

temperatureHistory

List<Double> temperatureHistory

thermoSystem

SystemInterface thermoSystem

timeHistory

List<Double> timeHistory

twoPhaseHeatTransfer

boolean twoPhaseHeatTransfer

useFixedFlowRate

boolean useFixedFlowRate

valveOpeningFraction

double valveOpeningFraction

valveOpeningTime

double valveOpeningTime

vesselDiameter

double vesselDiameter

vesselLength

double vesselLength

volume

double volume

wallDensity

double wallDensity

wallHeatCapacity

double wallHeatCapacity

wallTemperature

double wallTemperature

wallTemperatureHistory

List<Double> wallTemperatureHistory

wallThermalConductivity

double wallThermalConductivity

wallThickness

double wallThickness

wetSurfaceFraction

double wetSurfaceFraction

Package neqsim.process.equipment.util

Class neqsim.process.equipment.util.Adjuster

class Adjuster extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

activateWhenLess

boolean activateWhenLess

active

boolean active

adjustedEquipment

ProcessEquipmentInterface adjustedEquipment

adjustedVariable

String adjustedVariable

adjustedVariableUnit

String adjustedVariableUnit

consecutiveBoundHits

int consecutiveBoundHits

error

double error

inputValue

double inputValue

iterations

int iterations

maxAdjustedValue

double maxAdjustedValue

minAdjustedValue

double minAdjustedValue

oldError

double oldError

oldInputValue

double oldInputValue

targetComponent

String targetComponent

targetEquipment

ProcessEquipmentInterface targetEquipment

targetPhase

String targetPhase

targetUnit

String targetUnit

targetValue

double targetValue

targetVariable

String targetVariable

tolerance

double tolerance

Class neqsim.process.equipment.util.BroydenAccelerator

class BroydenAccelerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

delayIterations

int delayIterations

Minimum number of iterations before applying acceleration.

dimension

int dimension

Number of variables being accelerated.

inverseJacobian

double[][] inverseJacobian

Inverse Jacobian approximation (stored for efficiency using Sherman-Morrison).

iterationCount

int iterationCount

Number of iterations performed.

maxStepSize

double maxStepSize

Maximum step size to prevent divergence.

previousF

double[] previousF

Previous iteration residual values (f(x) = g(x) - x).

previousX

double[] previousX

Previous iteration input values.

relaxationFactor

double relaxationFactor

Relaxation factor for damping updates (0 < factor <= 1).

Class neqsim.process.equipment.util.Calculator

class Calculator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inputVariable

ArrayList<ProcessEquipmentInterface> inputVariable

outputVariable

ProcessEquipmentInterface outputVariable

simpleCalculationMethod

Runnable simpleCalculationMethod

type

String type

Class neqsim.process.equipment.util.ConvergenceDiagnostics

class ConvergenceDiagnostics extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

process

ProcessSystem process

The process system to diagnose.

Class neqsim.process.equipment.util.ConvergenceDiagnostics.AdjusterStatus

class AdjusterStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

converged

boolean converged

Whether the adjuster has converged.

error

double error

Current error.

iterations

int iterations

Number of iterations used.

name

String name

Adjuster unit name.

tolerance

double tolerance

Convergence tolerance.

Class neqsim.process.equipment.util.ConvergenceDiagnostics.DiagnosticReport

class DiagnosticReport extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

adjusterStatuses

List<ConvergenceDiagnostics.AdjusterStatus> adjusterStatuses

allConverged

boolean allConverged

recycleStatuses

List<ConvergenceDiagnostics.RecycleStatus> recycleStatuses

suggestions

List<String> suggestions

Class neqsim.process.equipment.util.ConvergenceDiagnostics.RecycleStatus

class RecycleStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

compError

double compError

Composition error (relative).

converged

boolean converged

Whether the recycle has converged.

dominantError

String dominantError

Which error type is dominant.

flowError

double flowError

Flow error (relative).

flowTolerance

double flowTolerance

Flow tolerance setting.

iterations

int iterations

Number of iterations used.

name

String name

Recycle unit name.

pressError

double pressError

Pressure error (relative).

tempError

double tempError

Temperature error (relative).

tempTolerance

double tempTolerance

Temperature tolerance setting.

Class neqsim.process.equipment.util.EmissionsCalculator

class EmissionsCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

butanesEmissionRate

double butanesEmissionRate

co2EmissionRate

double co2EmissionRate

cumulativeCO2_kg

double cumulativeCO2_kg

cumulativeMethane_kg

double cumulativeMethane_kg

cumulativeNMVOC_kg

double cumulativeNMVOC_kg

cumulativeTotalGas_kg

double cumulativeTotalGas_kg

ethaneEmissionRate

double ethaneEmissionRate

gasStream

StreamInterface gasStream

heavierEmissionRate

double heavierEmissionRate

methaneEmissionRate

double methaneEmissionRate

nitrogenEmissionRate

double nitrogenEmissionRate

pentanesEmissionRate

double pentanesEmissionRate

propaneEmissionRate

double propaneEmissionRate

totalGasRate

double totalGasRate

totalRunTime_hours

double totalRunTime_hours

waterVaporRate

double waterVaporRate

Class neqsim.process.equipment.util.FlowRateAdjuster

class FlowRateAdjuster extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

activateWhenLess

boolean activateWhenLess

adjustedEquipment

ProcessEquipmentInterface adjustedEquipment

adjustedVariable

String adjustedVariable

adjustedVariableUnit

String adjustedVariableUnit

desiredGasFlow

double desiredGasFlow

desiredOilFlow

double desiredOilFlow

desiredWaterFlow

double desiredWaterFlow

error

double error

inputValue

double inputValue

iterations

int iterations

maxAdjustedValue

double maxAdjustedValue

minAdjustedValue

double minAdjustedValue

name

String name

oldError

double oldError

oldInputValue

double oldInputValue

targetComponent

String targetComponent

targetEquipment

ProcessEquipmentInterface targetEquipment

targetPhase

String targetPhase

targetUnit

String targetUnit

targetValue

double targetValue

targetVariable

String targetVariable

tolerance

double tolerance

unit

String unit

waterDensity

double waterDensity

waterStream

Stream waterStream

Class neqsim.process.equipment.util.FlowSetter

class FlowSetter extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasFlowRate

double gasFlowRate

oilFlowRate

double oilFlowRate

pressure

double[] pressure

referenceProcess

ProcessSystem referenceProcess

temperature

double[] temperature

unitGasFlowRate

String unitGasFlowRate

unitOilFlowRate

String unitOilFlowRate

unitP

String unitP

unitT

String unitT

unitWaterFlowRate

String unitWaterFlowRate

waterFlowRate

double waterFlowRate

Class neqsim.process.equipment.util.FuelGasSystem

class FuelGasSystem extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

consumers

List<FuelGasSystem.FuelGasConsumer> consumers

List of fuel gas consumers.

dewPointAtOutletPressure

double dewPointAtOutletPressure

Gas dew point at outlet pressure [°C].

fuelGasHeater

Heater fuelGasHeater

Fuel gas heater for superheating.

heaterDutyKW

double heaterDutyKW

Heater duty required [kW].

inletPressure

double inletPressure

Inlet pressure [barg].

inletStream

StreamInterface inletStream

Inlet stream from fuel gas source.

inletTemperature

double inletTemperature

Inlet temperature [°C].

jtCoolingC

double jtCoolingC

JT cooling across valve [°C].

knockoutDrum

Separator knockoutDrum

Knockout drum for liquid removal.

lowerHeatingValueMJkg

double lowerHeatingValueMJkg

Lower heating value [MJ/kg].

outletPressure

double outletPressure

Required outlet pressure [barg].

outletStream

StreamInterface outletStream

Conditioned fuel gas outlet stream.

outletTemperature

double outletTemperature

Required outlet temperature [°C].

pressureLetdown

ThrottlingValve pressureLetdown

Pressure letdown valve.

superheatC

double superheatC

Superheat above dew point [°C].

totalDemand

double totalDemand

Total fuel gas demand [kg/hr].

wobbeIndex

double wobbeIndex

Wobbe index of fuel gas [MJ/Sm³].

Class neqsim.process.equipment.util.FuelGasSystem.FuelGasConsumer

class FuelGasConsumer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

demandKgh

double demandKgh

efficiencyPercent

double efficiencyPercent

isRunning

boolean isRunning

name

String name

type

FuelGasSystem.ConsumerType type

Class neqsim.process.equipment.util.GORfitter

class GORfitter extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

fitAsGVF

boolean fitAsGVF

GOR

double GOR

GVF

double GVF

pressure

double pressure

referenceConditions

String referenceConditions

temperature

double temperature

unitP

String unitP

unitT

String unitT

Class neqsim.process.equipment.util.MoleFractionControllerUtil

class MoleFractionControllerUtil extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

compName

String compName

moleFrac

double moleFrac

moleFractionReduction

boolean moleFractionReduction

moleFractionReductionRatio

double moleFractionReductionRatio

molesChange

double molesChange

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.util.MPFMfitter

class MPFMfitter extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

fitAsGVF

boolean fitAsGVF

GOR

double GOR

GVF

double GVF

pressure

double pressure

referenceConditions

String referenceConditions

referenceFluidPackage

SystemInterface referenceFluidPackage

temperature

double temperature

unitP

String unitP

unitT

String unitT

Class neqsim.process.equipment.util.MultiVariableAdjuster

class MultiVariableAdjuster extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

adjustedVariables

List<MultiVariableAdjuster.AdjustedVariable> adjustedVariables

List of adjusted (manipulated) variable definitions.

converged

boolean converged

Whether the adjuster has converged.

iterations

int iterations

Current iteration count.

maxIterations

int maxIterations

Maximum number of outer iterations.

maxResidual

double maxResidual

Current maximum residual.

targetSpecifications

List<MultiVariableAdjuster.TargetSpecification> targetSpecifications

List of target specification definitions.

tolerance

double tolerance

Convergence tolerance on the residual norm.

Class neqsim.process.equipment.util.NeqSimUnit

class NeqSimUnit extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipment

String equipment

flowPattern

String flowPattern

ID

double ID

interfacialArea

double interfacialArea

length

double length

numberOfNodes

int numberOfNodes

outerTemperature

double outerTemperature

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.util.PressureDrop

class PressureDrop extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

pressureDrop

double pressureDrop

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.util.ProducedWaterDegassingSystem

class ProducedWaterDegassingSystem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

caisson

ThreePhaseSeparator caisson

caissonEmissions

EmissionsCalculator caissonEmissions

caissonHeater

Heater caissonHeater

caissonPressure_bara

double caissonPressure_bara

cfu

ThreePhaseSeparator cfu

cfuEmissions

EmissionsCalculator cfuEmissions

cfuHeater

Heater cfuHeater

cfuPressure_bara

double cfuPressure_bara

degasser

ThreePhaseSeparator degasser

degasserEmissions

EmissionsCalculator degasserEmissions

degasserHeater

Heater degasserHeater

degasserPressure_bara

double degasserPressure_bara

dissolvedGasComposition

Map<String,Double> dissolvedGasComposition

hasRun

boolean hasRun

inletPressure_bara

double inletPressure_bara

labGasComposition

Map<String,Double> labGasComposition

labGWR

Double labGWR

name

String name

process

ProcessSystem process

salinity_wtpct

double salinity_wtpct

useTunedKijParameters

boolean useTunedKijParameters

waterFlowRate_kghr

double waterFlowRate_kghr

waterInletStream

Stream waterInletStream

waterTemperature_K

double waterTemperature_K

Class neqsim.process.equipment.util.Recycle

class Recycle extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

accelerationMethod

AccelerationMethod accelerationMethod

compositionTolerance

double compositionTolerance

downstreamProperty

ArrayList<String> downstreamProperty

errorComposition

double errorComposition

errorFlow

double errorFlow

errorPressure

double errorPressure

errorTemperature

double errorTemperature

firstTime

boolean firstTime

flowTolerance

double flowTolerance

iterations

int iterations

lastIterationStream

StreamInterface lastIterationStream

maxIterations

int maxIterations

minimumFlow

double minimumFlow

mixedStream

StreamInterface mixedStream

numberOfInputStreams

int numberOfInputStreams

outletStream

StreamInterface outletStream

pressureTolerance

double pressureTolerance

previousInputValues

double[] previousInputValues

Previous iteration input values for Wegstein slope calculation.

previousOutputValues

double[] previousOutputValues

Previous iteration output values for Wegstein slope calculation.

priority

int priority

streams

ArrayList<StreamInterface> streams

temperatureTolerance

double temperatureTolerance

wegsteinDelayIterations

int wegsteinDelayIterations

Delay iterations before applying Wegstein (allows system to stabilize).

wegsteinQFactors

double[] wegsteinQFactors

Current Wegstein q-factor values per variable.

wegsteinQMax

double wegsteinQMax

Maximum bound for Wegstein q-factor to prevent divergence.

wegsteinQMin

double wegsteinQMin

Minimum bound for Wegstein q-factor to prevent divergence.

Class neqsim.process.equipment.util.RecycleController

class RecycleController extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentPriorityLevel

int currentPriorityLevel

maximumPriorityLevel

int maximumPriorityLevel

minimumPriorityLevel

int minimumPriorityLevel

priorityArray

ArrayList<Integer> priorityArray

recycleArray

ArrayList<Recycle> recycleArray

useCoordinatedAcceleration

boolean useCoordinatedAcceleration

Whether to use coordinated acceleration across all recycles at current priority.

Class neqsim.process.equipment.util.SetPoint

class SetPoint extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inputValue

double inputValue

oldInputValue

double oldInputValue

sourceEquipment

ProcessEquipmentInterface sourceEquipment

sourceVariable

String sourceVariable

targetComponent

String targetComponent

targetEquipment

ProcessEquipmentInterface targetEquipment

targetPhase

String targetPhase

targetUnit

String targetUnit

targetValue

double targetValue

targetVariable

String targetVariable

Class neqsim.process.equipment.util.Setter

class Setter extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

parameters

List<Map<String,Object>> parameters

targetEquipment

List<ProcessEquipmentInterface> targetEquipment

Class neqsim.process.equipment.util.SpreadsheetBlock

class SpreadsheetBlock extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

cells

LinkedHashMap<String, SpreadsheetBlock.CellDefinition> cells

Ordered map of cell names to their definitions.

cellValues

LinkedHashMap<String,Double> cellValues

Current computed values for each cell.

exportTargets

List<SpreadsheetBlock.ExportTarget> exportTargets

Export targets that push computed values back into the process.

Class neqsim.process.equipment.util.StreamSaturatorUtil

class StreamSaturatorUtil extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

approachToSaturation

double approachToSaturation

lastComposition

double[] lastComposition

Cached inlet composition for needRecalculation check.

multiPhase

boolean multiPhase

oldInletFlowRate

double oldInletFlowRate

thermoSystem

SystemInterface thermoSystem

Class neqsim.process.equipment.util.StreamTransition

class StreamTransition extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.util.UnisimCalculator

class UnisimCalculator extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculationMode

String calculationMode

Description of the current calculation mode.

inletStreams

List<StreamInterface> inletStreams

Inlet streams connected to the imported UniSim operation.

outletFlowRate

double outletFlowRate

Optional outlet flow rate value.

outletFlowRateSpecified

boolean outletFlowRateSpecified

Whether an outlet flow rate override has been specified.

outletFlowRateUnit

String outletFlowRateUnit

Unit for the optional outlet flow rate value.

outletMolarComposition

double[] outletMolarComposition

Optional outlet molar composition value.

outletMolarCompositionSpecified

boolean outletMolarCompositionSpecified

Whether an outlet molar composition override has been specified.

outletPressure

double outletPressure

Optional outlet pressure value.

outletPressureSpecified

boolean outletPressureSpecified

Whether an outlet pressure override has been specified.

outletPressureUnit

String outletPressureUnit

Unit for the optional outlet pressure value.

outletStream

StreamInterface outletStream

Outlet stream exposed to downstream NeqSim equipment.

outletTemperature

double outletTemperature

Optional outlet temperature value.

outletTemperatureSpecified

boolean outletTemperatureSpecified

Whether an outlet temperature override has been specified.

outletTemperatureUnit

String outletTemperatureUnit

Unit for the optional outlet temperature value.

sourceOperationType

String sourceOperationType

UniSim operation type that created this block.

Class neqsim.process.equipment.util.UtilityAirSystem

class UtilityAirSystem extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1001L

Serialized Fields

actualDewPointC

double actualDewPointC

aftercoolerOutletTemp

double aftercoolerOutletTemp

Aftercooler outlet temperature [°C].

compressorPowerKW

double compressorPowerKW

compressorType

UtilityAirSystem.CompressorType compressorType

Compressor type.

condensateVolumeM3h

double condensateVolumeM3h

consumers

List<UtilityAirSystem.AirConsumer> consumers

dischargePressure

double dischargePressure

Discharge pressure [barg].

dryerPurgeLoss

double dryerPurgeLoss

dryerType

UtilityAirSystem.DryerType dryerType

Dryer type.

inletRelativeHumidity

double inletRelativeHumidity

Relative humidity at inlet [%].

inletTemperature

double inletTemperature

Inlet temperature [°C].

instrumentAirFraction

double instrumentAirFraction

Instrument air demand fraction.

numberOfCompressors

int numberOfCompressors

Number of compressors (N+1 redundancy typical).

plantAirFraction

double plantAirFraction

Plant air demand fraction.

receiverVolume

double receiverVolume

Receiver tank volume [m³].

serviceAirFraction

double serviceAirFraction

Service/breathing air fraction.

specificEnergyKWhPerNm3

double specificEnergyKWhPerNm3

systemRunning

boolean systemRunning

targetQuality

UtilityAirSystem.AirQualityClass targetQuality

Target air quality class.

totalAirDemand

double totalAirDemand

Total air demand [Nm³/hr].

Class neqsim.process.equipment.util.UtilityAirSystem.AirConsumer

class AirConsumer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

demandNm3h

double demandNm3h

isCritical

boolean isCritical

name

String name

requiredQuality

UtilityAirSystem.AirQualityClass requiredQuality

Package neqsim.process.equipment.valve

Class neqsim.process.equipment.valve.BlowdownValve

class BlowdownValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

isActivated

boolean isActivated

Indicates if blowdown valve has been activated (ESD triggered).

isOpening

boolean isOpening

Track if valve opening is in progress.

openingTime

double openingTime

Time required for valve to fully open (seconds).

timeElapsed

double timeElapsed

Time elapsed since activation started (seconds).

Class neqsim.process.equipment.valve.CheckValve

class CheckValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

crackingPressure

double crackingPressure

Minimum differential pressure required to open valve (bara).

isOpen

boolean isOpen

Indicates if valve is currently open.

Class neqsim.process.equipment.valve.ControlValve

class ControlValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Class neqsim.process.equipment.valve.ESDValve

class ESDValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

failSafePosition

double failSafePosition

Fail-safe position (0.0 = closed, 100.0 = open). Default is fail-closed.

hasTripCompleted

boolean hasTripCompleted

Flag to track if valve has fully closed during current trip.

isClosing

boolean isClosing

Indicates if valve is currently closing.

isEnergized

boolean isEnergized

Energization state of the valve solenoid/actuator.

openingAtTripStart

double openingAtTripStart

Opening percentage when trip started (for linear closure calculation).

partialStrokeTestActive

boolean partialStrokeTestActive

Indicates if partial stroke test is in progress.

partialStrokeTestPosition

double partialStrokeTestPosition

Target position for partial stroke test (typically 80-90%).

strokeTime

double strokeTime

Time required for valve to fully close (seconds).

timeElapsedSinceTrip

double timeElapsedSinceTrip

Time elapsed since de-energization started (seconds).

Class neqsim.process.equipment.valve.HIPPSValve

class HIPPSValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

closureTime

double closureTime

Time required for valve to close (seconds).

cumulativeTime

double cumulativeTime

Cumulative time in simulation (for diagnostics).

hasTripped

boolean hasTripped

Indicates if HIPPS has tripped.

lastTripTime

double lastTripTime

Timestamp of last trip event (for diagnostics).

partialStrokeTestActive

boolean partialStrokeTestActive

Flag indicating if partial stroke test is active.

partialStrokeTestDuration

double partialStrokeTestDuration

Duration of partial stroke test.

partialStrokeTestStartTime

double partialStrokeTestStartTime

Time when partial stroke test started.

partialStrokeTestTarget

double partialStrokeTestTarget

Target opening for partial stroke test.

pressureTransmitters

List<MeasurementDeviceInterface> pressureTransmitters

List of pressure transmitters providing redundancy.

proofTestInterval

double proofTestInterval

Proof test interval (hours) - required for SIL validation.

silRating

int silRating

Safety Integrity Level (1, 2, or 3).

spuriousTripCount

int spuriousTripCount

Count of spurious trips (for diagnostics).

timeSinceProofTest

double timeSinceProofTest

Time since last proof test (hours).

tripEnabled

boolean tripEnabled

Flag to enable/disable automatic trip.

votingLogic

HIPPSValve.VotingLogic votingLogic

Voting logic for transmitter redundancy.

Class neqsim.process.equipment.valve.LevelControlValve

class LevelControlValve extends ControlValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoMode

boolean autoMode

Enable/disable automatic control.

controlAction

LevelControlValve.ControlAction controlAction

Control action.

controlError

double controlError

Control error (setpoint - measured level).

controllerGain

double controllerGain

Proportional controller gain.

failSafePosition

double failSafePosition

Fail-safe position on loss of instrument air or power (% opening).

levelSetpoint

double levelSetpoint

Level setpoint in % (0-100).

measuredLevel

double measuredLevel

Measured level in % (0-100).

Class neqsim.process.equipment.valve.PressureControlValve

class PressureControlValve extends ControlValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoMode

boolean autoMode

Enable/disable automatic control.

controlError

double controlError

Control error (setpoint - PV).

controllerGain

double controllerGain

Proportional controller gain.

controlMode

PressureControlValve.ControlMode controlMode

Control mode.

pressureSetpoint

double pressureSetpoint

Pressure setpoint in bara.

processVariable

double processVariable

Current process variable (measured pressure) in bara.

Class neqsim.process.equipment.valve.PSDValve

class PSDValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

closureTime

double closureTime

Time required for valve to close (seconds).

hasTripped

boolean hasTripped

Indicates if valve has tripped due to HIHI alarm.

pressureTransmitter

MeasurementDeviceInterface pressureTransmitter

Pressure transmitter monitored for HIHI alarm.

tripEnabled

boolean tripEnabled

Flag to enable/disable automatic trip on HIHI.

Class neqsim.process.equipment.valve.RuptureDisk

class RuptureDisk extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

burstPressure

double burstPressure

fullOpenPressure

double fullOpenPressure

hasRuptured

boolean hasRuptured

Class neqsim.process.equipment.valve.SafetyReliefValve

class SafetyReliefValve extends ThrottlingValve implements Serializable

serialVersionUID:

1L

Serialized Fields

backpressureSensitivity

double backpressureSensitivity

blowdownFrac

double blowdownFrac

kbMax

double kbMax

kd

double kd

maxLiftRatePerSec

double maxLiftRatePerSec

minCloseTimeSec

double minCloseTimeSec

minOpenTimeSec

double minOpenTimeSec

minStableOpenFrac

double minStableOpenFrac

openFraction

double openFraction

openingLaw

SafetyReliefValve.OpeningLaw openingLaw

overpressureFrac

double overpressureFrac

ratedCv

double ratedCv

setPressureBar

double setPressureBar

tauCloseSec

double tauCloseSec

tauOpenSec

double tauOpenSec

timeSinceCloseSec

double timeSinceCloseSec

timeSinceOpenSec

double timeSinceOpenSec

valveType

SafetyReliefValve.ValveType valveType

wasOpenLastStep

boolean wasOpenLastStep

Class neqsim.process.equipment.valve.SafetyValve

class SafetyValve extends ThrottlingValve implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeScenarioName

String activeScenarioName

blowdownPressure

double blowdownPressure

fullOpenPressure

double fullOpenPressure

isValveOpen

boolean isValveOpen

pressureSpec

double pressureSpec

relievingScenarios

List<SafetyValve.RelievingScenario> relievingScenarios

Class neqsim.process.equipment.valve.SafetyValve.RelievingScenario

class RelievingScenario extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

backPressure

double backPressure

backPressureCorrection

Double backPressureCorrection

dischargeCoefficient

Double dischargeCoefficient

fluidService

SafetyValve.FluidService fluidService

installationCorrection

Double installationCorrection

name

String name

overpressureFraction

double overpressureFraction

relievingStream

StreamInterface relievingStream

setPressure

Double setPressure

sizingStandard

SafetyValve.SizingStandard sizingStandard

Class neqsim.process.equipment.valve.ThrottlingValve

class ThrottlingValve extends TwoPortEquipment implements Serializable

serialVersionUID:

1000L

Serialized Fields

acceptNegativeDP

boolean acceptNegativeDP

allowChoked

boolean allowChoked

allowLaminar

boolean allowLaminar

autoSized

boolean autoSized

Flag indicating if valve has been auto-sized.

capacityConstraints

Map<String, CapacityConstraint> capacityConstraints

Storage for capacity constraints.

deltaPressure

double deltaPressure

Fp

double Fp

gasValve

boolean gasValve

isCalcPressure

boolean isCalcPressure

isoThermal

boolean isoThermal

isStuck

boolean isStuck

Whether the valve is currently stuck due to stiction.

Kv

double Kv

lastMoveDirection

int lastMoveDirection

Last direction the valve moved: +1 = opening, -1 = closing, 0 = initial.

maxDesignAIV

double maxDesignAIV

Maximum design AIV (Acoustic-Induced Vibration) power level in kW.

maxMolarFlow

double maxMolarFlow

maxValveOpening

double maxValveOpening

minMolarFlow

double minMolarFlow

minValveOpening

double minValveOpening

molarFlow

double molarFlow

percentValveOpening

double percentValveOpening

pressure

double pressure

pressureUnit

String pressureUnit

requestedValveOpening

double requestedValveOpening

stuckPosition

double stuckPosition

The valve position when it last became stuck.

thermoSystem

SystemInterface thermoSystem

travelModel

ValveTravelModel travelModel

valveClosingTravelTimeSec

double valveClosingTravelTimeSec

valveDeadband

double valveDeadband

Valve deadband in percent — signal changes smaller than this are ignored.

valveHysteresis

double valveHysteresis

Hysteresis band in percent — position offset between increasing/decreasing signal.

valveKvSet

boolean valveKvSet

valveMechanicalDesign

ValveMechanicalDesign valveMechanicalDesign

valveOpeningTravelTimeSec

double valveOpeningTravelTimeSec

valveStiction

double valveStiction

Valve stiction band in percent — valve sticks until force overcomes this threshold.

valveTimeConstantSec

double valveTimeConstantSec

valveTravelTimeSec

double valveTravelTimeSec

xt

double xt

Package neqsim.process.equipment.watertreatment

Class neqsim.process.equipment.watertreatment.GasFlotationUnit

class GasFlotationUnit extends Separator implements Serializable

serialVersionUID:

1000L

Serialized Fields

flotationGasFlowRateM3h

double flotationGasFlowRateM3h

Gas flow rate in Am3/h.

flotationGasType

String flotationGasType

Flotation gas type: "fuel_gas" or "nitrogen".

inletOilMgL

double inletOilMgL

Inlet oil concentration in mg/L.

minGasMixingDPBar

double minGasMixingDPBar

Minimum gas mixing valve dP (bar).

minGasOverpressureBar

double minGasOverpressureBar

Minimum flotation gas overpressure above water pressure (bar).

minGasVolumeFractionPct

double minGasVolumeFractionPct

Minimum flotation gas volume fraction (Avol%).

minRejectFractionPerStage

double minRejectFractionPerStage

Minimum reject flow per stage as fraction of inlet water flow.

numberOfStages

int numberOfStages

Number of flotation stages.

oilRemovalEfficiency

double oilRemovalEfficiency

Overall oil removal efficiency (0.0-1.0).

outletOilMgL

double outletOilMgL

Calculated outlet oil concentration in mg/L.

perStageEfficiency

double perStageEfficiency

Per-stage efficiency (0.0-1.0). Calculated from overall and number of stages.

rejectFlowPerStageM3h

double rejectFlowPerStageM3h

Reject flow rate per stage in m3/h.

waterFlowRateM3h

double waterFlowRateM3h

Water flow rate in m3/h.

Class neqsim.process.equipment.watertreatment.Hydrocyclone

class Hydrocyclone extends Separator implements Serializable

serialVersionUID:

1001L

Serialized Fields

calculatedD50

double calculatedD50

Calculated d50 from Stokes model.

calculatedEfficiency

double calculatedEfficiency

Calculated overall efficiency from DSD integration.

capacityUtilization

double capacityUtilization

Calculated capacity utilization (0-1+).

d50Microns

double d50Microns

d50 cut size in microns (user-set or calculated).

d50UserSet

boolean d50UserSet

Whether d50 was explicitly set by user (vs calculated from conditions).

designFlowPerLinerM3h

double designFlowPerLinerM3h

Design flow per liner (m3/h). Set from liner diameter lookup.

dv50Microns

double dv50Microns

Median droplet diameter (volume-weighted) in microns.

efficiencyUserSet

boolean efficiencyUserSet

Whether efficiency was explicitly set by user (vs calculated).

feedFlowM3h

double feedFlowM3h

Calculated feed flow rate (m3/h).

flowPerLinerM3h

double flowPerLinerM3h

Calculated flow per liner (m3/h).

gsd

double gsd

Geometric standard deviation of droplet size distribution.

hydrocycloneMechanicalDesign

HydrocycloneMechanicalDesign hydrocycloneMechanicalDesign

Hydrocyclone-specific mechanical design instance.

inletOilMgL

double inletOilMgL

Inlet oil concentration (mg/L).

linerDiameterMm

double linerDiameterMm

Liner cone diameter (mm). Default 35 mm is most common for oil-water.

linerEffectiveLengthM

double linerEffectiveLengthM

Effective separation length of one liner (m). Derived from liner diameter.

linersPerVessel

int linersPerVessel

Liners per vessel (pressure housing). Typical 4-12.

maxFlowPerLinerM3h

double maxFlowPerLinerM3h

Maximum flow per liner (m3/h). Above this, droplet re-entrainment occurs.

minFlowPerLinerM3h

double minFlowPerLinerM3h

Minimum flow per liner (m3/h). Below this, centrifugal force is too low.

numberOfLiners

int numberOfLiners

Number of active liners.

numberOfSpareLiners

int numberOfSpareLiners

Number of spare (blanked-off) liners.

numberOfVessels

int numberOfVessels

Number of vessels (calculated from liners).

oilDensityKgm3

double oilDensityKgm3

Oil density (kg/m3).

oilRemovalEfficiency

double oilRemovalEfficiency

Overall oil removal efficiency (0-1). Calculated or user-set.

outletOilMgL

double outletOilMgL

Outlet oil concentration (mg/L). Calculated.

pdr

double pdr

Pressure Drop Ratio: PDR = (P_in - P_reject) / (P_in - P_overflow).

pressureDrop

double pressureDrop

Pressure drop across cyclone, inlet to clean water overflow (bar).

rejectRatio

double rejectRatio

Reject ratio - fraction of feed going to reject (oil-rich) outlet.

sharpnessIndex

double sharpnessIndex

Rosin-Rammler sharpness index n. Typical 2-4.

waterDensityKgm3

double waterDensityKgm3

Water density (kg/m3).

waterViscosityPas

double waterViscosityPas

Water dynamic viscosity (Pa.s). Default 20 degC.

Class neqsim.process.equipment.watertreatment.ProducedWaterTreatmentTrain

class ProducedWaterTreatmentTrain extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inletOilConcentrationMgL

double inletOilConcentrationMgL

inletStream

StreamInterface inletStream

isCompliant

boolean isCompliant

outletOilConcentrationMgL

double outletOilConcentrationMgL

overallEfficiency

double overallEfficiency

recoveredOilM3h

double recoveredOilM3h

recoveredOilStream

StreamInterface recoveredOilStream

stages

List<ProducedWaterTreatmentTrain.WaterTreatmentStage> stages

treatedWaterStream

StreamInterface treatedWaterStream

waterFlowRateM3h

double waterFlowRateM3h

Class neqsim.process.equipment.watertreatment.ProducedWaterTreatmentTrain.WaterTreatmentStage

class WaterTreatmentStage extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

efficiency

double efficiency

inletOIW

double inletOIW

name

String name

outletOIW

double outletOIW

recoveredOilM3h

double recoveredOilM3h

type

ProducedWaterTreatmentTrain.StageType type

Package neqsim.process.equipment.well.allocation

Class neqsim.process.equipment.well.allocation.AllocationResult

class AllocationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allocationError

double allocationError

balanced

boolean balanced

gasRates

Map<String,Double> gasRates

oilRates

Map<String,Double> oilRates

timestamp

Instant timestamp

totalGasRate

double totalGasRate

totalOilRate

double totalOilRate

totalWaterRate

double totalWaterRate

uncertainties

Map<String,Double> uncertainties

waterRates

Map<String,Double> waterRates

Class neqsim.process.equipment.well.allocation.WellProductionAllocator

class WellProductionAllocator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

method

WellProductionAllocator.AllocationMethod method

name

String name

reconciliationTolerance

double reconciliationTolerance

wells

List<WellProductionAllocator.WellData> wells

Class neqsim.process.equipment.well.allocation.WellProductionAllocator.WellData

class WellData extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

chokePosition

double chokePosition

productivityIndex

double productivityIndex

reservoirPressure

double reservoirPressure

testGasRate

double testGasRate

testOilRate

double testOilRate

testWaterRate

double testWaterRate

vfmGasRate

double vfmGasRate

vfmOilRate

double vfmOilRate

vfmWaterRate

double vfmWaterRate

weight

double weight

wellName

String wellName

wellStream

StreamInterface wellStream

Package neqsim.process.fielddevelopment.concept

Class neqsim.process.fielddevelopment.concept.DevelopmentCaseTemplate

class DevelopmentCaseTemplate extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualEmissionsTonnes

double annualEmissionsTonnes

annualOpexMusd

double annualOpexMusd

assumptionsSummary

String assumptionsSummary

capexBreakdownMusd

Map<String,Double> capexBreakdownMusd

caseType

String caseType

concept

FieldConcept concept

developmentDurationMonths

int developmentDurationMonths

economics

CashFlowEngine.CashFlowResult economics

facilityConfig

FacilityConfig facilityConfig

firstProductionYear

int firstProductionYear

lifecycleEmissionsProfile

LifecycleEmissionsProfile lifecycleEmissionsProfile

name

String name

powerMw

double powerMw

productionProfile

Map<Integer,Double> productionProfile

uncertainty

DevelopmentCaseUncertainty uncertainty

Class neqsim.process.fielddevelopment.concept.DevelopmentCaseUncertainty

class DevelopmentCaseUncertainty extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

capex

UncertaintyRange capex

price

UncertaintyRange price

productionFactor

UncertaintyRange productionFactor

resource

UncertaintyRange resource

scheduleMonths

UncertaintyRange scheduleMonths

Class neqsim.process.fielddevelopment.concept.FieldConcept

class FieldConcept extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

id

String id

infrastructure

InfrastructureInput infrastructure

name

String name

reservoir

ReservoirInput reservoir

wells

WellsInput wells

Class neqsim.process.fielddevelopment.concept.InfrastructureInput

class InfrastructureInput extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientAirTemperature

double ambientAirTemperature

ambientSeaTemperature

double ambientSeaTemperature

electricHeating

boolean electricHeating

exportPipelineDiameter

double exportPipelineDiameter

exportPipelineLength

double exportPipelineLength

exportType

InfrastructureInput.ExportType exportType

hostCapacityAvailable

double hostCapacityAvailable

insulatedFlowline

boolean insulatedFlowline

powerSupply

InfrastructureInput.PowerSupply powerSupply

processingLocation

InfrastructureInput.ProcessingLocation processingLocation

tiebackLength

double tiebackLength

waterDepth

double waterDepth

Class neqsim.process.fielddevelopment.concept.ReservoirInput

class ReservoirInput extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

apiGravity

double apiGravity

co2Percent

double co2Percent

customComposition

Map<String,Double> customComposition

fluidType

ReservoirInput.FluidType fluidType

gasGravity

double gasGravity

gor

double gor

gorUnit

String gorUnit

h2sPercent

double h2sPercent

n2Percent

double n2Percent

recoveryFactor

double recoveryFactor

reservoirPressure

double reservoirPressure

reservoirTemperature

double reservoirTemperature

resourceEstimate

double resourceEstimate

resourceP10

double resourceP10

resourceP50

double resourceP50

resourceP90

double resourceP90

resourceUnit

String resourceUnit

waterCut

double waterCut

waterSalinity

double waterSalinity

Class neqsim.process.fielddevelopment.concept.UncertaintyRange

class UncertaintyRange extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

p10

double p10

p50

double p50

p90

double p90

unit

String unit

Class neqsim.process.fielddevelopment.concept.WellsInput

class WellsInput extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

completionType

WellsInput.CompletionType completionType

gasLiftRate

double gasLiftRate

gasLiftUnit

String gasLiftUnit

injectorCount

int injectorCount

producerCount

int producerCount

producerType

WellsInput.WellType producerType

productivityIndex

double productivityIndex

ratePerWell

double ratePerWell

rateUnit

String rateUnit

shutInPressure

double shutInPressure

thp

double thp

waterInjectionRate

double waterInjectionRate

waterInjectionUnit

String waterInjectionUnit

Package neqsim.process.fielddevelopment.economics

Class neqsim.process.fielddevelopment.economics.CashFlowEngine

class CashFlowEngine extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

capexByYear

Map<Integer,Double> capexByYear

CAPEX by year (year to amount in MUSD).

firstYear

int firstYear

First year of project (for analysis purposes).

fixedOpexPerYear

double fixedOpexPerYear

Fixed OPEX per year (MUSD).

gasPriceUsdPerSm3

double gasPriceUsdPerSm3

Gas price in USD per Sm3.

gasProductionByYear

Map<Integer,Double> gasProductionByYear

Annual gas production by year (year to Sm3).

gasTariffUsdPerSm3

double gasTariffUsdPerSm3

Gas transport tariff in USD per Sm3.

lastYear

int lastYear

Last year of project.

nglPriceUsdPerBbl

double nglPriceUsdPerBbl

NGL price in USD per barrel.

nglProductionByYear

Map<Integer,Double> nglProductionByYear

Annual NGL production by year (year to barrels).

oilPriceUsdPerBbl

double oilPriceUsdPerBbl

Oil price in USD per barrel.

oilProductionByYear

Map<Integer,Double> oilProductionByYear

Annual oil production by year (year to barrels).

oilTariffUsdPerBbl

double oilTariffUsdPerBbl

Oil transport tariff in USD per barrel.

opexPercentOfCapex

double opexPercentOfCapex

OPEX as percentage of total CAPEX per year.

taxModel

TaxModel taxModel

Tax model for calculating country-specific taxes.

totalCapex

double totalCapex

Total CAPEX for depreciation calculation.

variableOpexPerBoe

double variableOpexPerBoe

Variable OPEX per barrel of oil equivalent (USD/boe).

Class neqsim.process.fielddevelopment.economics.CashFlowEngine.AnnualCashFlow

class AnnualCashFlow extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

afterTaxCashFlow

double afterTaxCashFlow

capex

double capex

corporateTax

double corporateTax

cumulativeCashFlow

double cumulativeCashFlow

depreciation

double depreciation

discountedCashFlow

double discountedCashFlow

grossRevenue

double grossRevenue

netRevenue

double netRevenue

opex

double opex

petroleumTax

double petroleumTax

preTaxCashFlow

double preTaxCashFlow

tariff

double tariff

totalTax

double totalTax

uplift

double uplift

year

int year

Class neqsim.process.fielddevelopment.economics.CashFlowEngine.CashFlowResult

class CashFlowResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualCashFlows

List<CashFlowEngine.AnnualCashFlow> annualCashFlows

discountRate

double discountRate

firstYear

int firstYear

irr

double irr

lastYear

int lastYear

npv

double npv

paybackYears

double paybackYears

totalCapex

double totalCapex

Class neqsim.process.fielddevelopment.economics.FiscalParameters

class FiscalParameters extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

corporateTaxRate

double corporateTaxRate

Corporate income tax rate (0-1).

costRecoveryLimit

double costRecoveryLimit

Maximum cost recovery per period as fraction of revenue (0-1).

countryCode

String countryCode

Country or region code (e.g., "NO", "UK", "US-GOM").

countryName

String countryName

Full country or region name.

decliningBalanceRate

double decliningBalanceRate

Declining balance rate (for declining balance method).

decommissioningDeductible

boolean decommissioningDeductible

Whether decommissioning costs are tax deductible.

decommissioningFundDeductible

boolean decommissioningFundDeductible

Whether decommissioning fund contributions are tax deductible.

depreciationMethod

FiscalParameters.DepreciationMethod depreciationMethod

depreciationYears

int depreciationYears

Depreciation period in years (for straight-line).

description

String description

Description of the fiscal regime.

enhancedRdDeduction

boolean enhancedRdDeduction

Whether R&D expenses are deductible at enhanced rate.

fiscalSystemType

FiscalParameters.FiscalSystemType fiscalSystemType

investmentTaxCredit

double investmentTaxCredit

Investment tax credit rate (0-1).

lossCarryBack

boolean lossCarryBack

Whether losses can be carried back.

lossCarryBackYears

int lossCarryBackYears

Maximum years for loss carry-back.

lossCarryForward

boolean lossCarryForward

Whether losses can be carried forward.

lossCarryForwardInterest

double lossCarryForwardInterest

Interest rate on carried-forward losses (0-1).

lossCarryForwardYears

int lossCarryForwardYears

Maximum years for loss carry-forward (0 = unlimited).

profitShareContractor

double profitShareContractor

Profit oil/gas contractor share (0-1).

profitShareGovernment

double profitShareGovernment

Profit oil/gas government share (0-1).

rdEnhancementFactor

double rdEnhancementFactor

R&D enhancement factor (e.g., 1.5 for 150% deduction).

resourceTaxRate

double resourceTaxRate

Resource/petroleum/mineral tax rate (0-1).

ringFenced

boolean ringFenced

Whether ring-fencing applies (losses cannot offset other fields).

ringFenceLevel

FiscalParameters.RingFenceLevel ringFenceLevel

royaltyRate

double royaltyRate

Royalty rate on gross production (0-1).

stateParticipation

double stateParticipation

State participation percentage (0-1).

upliftRate

double upliftRate

Investment uplift rate per year (0-1).

upliftYears

int upliftYears

Number of years for uplift.

validFromYear

int validFromYear

Year the parameters are valid from.

windfallTaxRate

double windfallTaxRate

Windfall/excess profit tax rate (0-1).

windfallTaxThreshold

double windfallTaxThreshold

Windfall tax threshold (price above which windfall tax applies).

Class neqsim.process.fielddevelopment.economics.GenericTaxModel

class GenericTaxModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

corporateTaxLossCarryForward

double corporateTaxLossCarryForward

parameters

FiscalParameters parameters

resourceTaxLossCarryForward

double resourceTaxLossCarryForward

Class neqsim.process.fielddevelopment.economics.NorwegianTaxModel

class NorwegianTaxModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

corporateTaxLossCarryForward

double corporateTaxLossCarryForward

corporateTaxRate

double corporateTaxRate

depreciationYears

int depreciationYears

petroleumTaxLossCarryForward

double petroleumTaxLossCarryForward

petroleumTaxRate

double petroleumTaxRate

upliftRate

double upliftRate

upliftYears

int upliftYears

Class neqsim.process.fielddevelopment.economics.NorwegianTaxModel.TaxResult

class TaxResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

afterTaxIncome

double afterTaxIncome

corporateTax

double corporateTax

corporateTaxBase

double corporateTaxBase

depreciation

double depreciation

grossRevenue

double grossRevenue

opex

double opex

petroleumTax

double petroleumTax

petroleumTaxBase

double petroleumTaxBase

totalTax

double totalTax

uplift

double uplift

Class neqsim.process.fielddevelopment.economics.PortfolioOptimizer

class PortfolioOptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualBudgets

Map<Integer,Double> annualBudgets

Annual budget constraints (year to budget in MUSD).

maxAllocationByType

Map<PortfolioOptimizer.ProjectType, Double> maxAllocationByType

Maximum allocation per project type.

minAllocationByType

Map<PortfolioOptimizer.ProjectType, Double> minAllocationByType

Minimum allocation per project type.

projects

List<PortfolioOptimizer.Project> projects

List of candidate projects.

totalBudgetMusd

double totalBudgetMusd

Total budget constraint (across all years).

Class neqsim.process.fielddevelopment.economics.PortfolioOptimizer.PortfolioResult

class PortfolioResult extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

annualBudgetRemaining

Map<Integer,Double> annualBudgetRemaining

annualCapexUsed

Map<Integer,Double> annualCapexUsed

deferredProjects

List<PortfolioOptimizer.Project> deferredProjects

selectedProjects

List<PortfolioOptimizer.Project> selectedProjects

strategy

PortfolioOptimizer.OptimizationStrategy strategy

totalCapex

double totalCapex

totalEmv

double totalEmv

totalNpv

double totalNpv

Class neqsim.process.fielddevelopment.economics.PortfolioOptimizer.Project

class Project extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

capexMusd

double capexMusd

capexProfile

Map<Integer,Double> capexProfile

dependencies

List<String> dependencies

mandatory

boolean mandatory

name

String name

npvMusd

double npvMusd

probabilityOfSuccess

double probabilityOfSuccess

startYear

int startYear

type

PortfolioOptimizer.ProjectType type

Class neqsim.process.fielddevelopment.economics.ProductionProfileGenerator

class ProductionProfileGenerator extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.fielddevelopment.economics.ProductionProfileGenerator.HistoryMatchedDeclineCase

class HistoryMatchedDeclineCase extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualDeclineRate

double annualDeclineRate

firstHistoryYear

int firstHistoryYear

fitQuality

double fitQuality

initialRatePerDay

double initialRatePerDay

lastHistoryYear

int lastHistoryYear

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer

class SensitivityAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseCase

CashFlowEngine baseCase

Base case engine (used as template).

baseCaseNpv

double baseCaseNpv

Base case NPV for comparison.

capexMax

double capexMax

capexMin

double capexMin

discountRate

double discountRate

Discount rate for NPV calculations.

gasPriceMax

double gasPriceMax

gasPriceMin

double gasPriceMin

oilPriceMax

double oilPriceMax

oilPriceMin

double oilPriceMin

opexFactorMax

double opexFactorMax

opexFactorMin

double opexFactorMin

productionFactorMax

double productionFactorMax

productionFactorMin

double productionFactorMin

random

Random random

Random number generator for Monte Carlo.

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer.BreakevenResult

class BreakevenResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

breakevenGasPrice

double breakevenGasPrice

breakevenOilPrice

double breakevenOilPrice

discountRate

double discountRate

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer.MonteCarloResult

class MonteCarloResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

irrMean

double irrMean

irrP10

double irrP10

irrP50

double irrP50

irrP90

double irrP90

iterations

int iterations

npvDistribution

double[] npvDistribution

npvMean

double npvMean

npvP10

double npvP10

npvP50

double npvP50

npvP90

double npvP90

npvStdDev

double npvStdDev

probabilityPositiveNpv

double probabilityPositiveNpv

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer.ScenarioResult

class ScenarioResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseIrr

double baseIrr

baseNpv

double baseNpv

highIrr

double highIrr

highNpv

double highNpv

lowIrr

double lowIrr

lowNpv

double lowNpv

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer.TornadoItem

class TornadoItem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseCaseNpv

double baseCaseNpv

highNpv

double highNpv

lowNpv

double lowNpv

parameterName

String parameterName

Class neqsim.process.fielddevelopment.economics.SensitivityAnalyzer.TornadoResult

class TornadoResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseCaseNpv

double baseCaseNpv

items

List<SensitivityAnalyzer.TornadoItem> items

variationPercent

double variationPercent

Class neqsim.process.fielddevelopment.economics.TaxModel.TaxResult

class TaxResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

afterTaxIncome

double afterTaxIncome

corporateTax

double corporateTax

corporateTaxBase

double corporateTaxBase

depreciation

double depreciation

governmentTake

double governmentTake

grossRevenue

double grossRevenue

opex

double opex

resourceTax

double resourceTax

resourceTaxBase

double resourceTaxBase

royalty

double royalty

totalTax

double totalTax

uplift

double uplift

Package neqsim.process.fielddevelopment.evaluation

Class neqsim.process.fielddevelopment.evaluation.BottleneckAnalyzer

class BottleneckAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

facility

ProcessSystem facility

Process system to analyze.

utilizationThreshold

double utilizationThreshold

Minimum utilization to flag as potential bottleneck.

Class neqsim.process.fielddevelopment.evaluation.BottleneckAnalyzer.BottleneckResult

class BottleneckResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraintDescription

String constraintDescription

constraintType

BottleneckAnalyzer.ConstraintType constraintType

currentValue

double currentValue

equipmentName

String equipmentName

equipmentType

BottleneckAnalyzer.EquipmentType equipmentType

maxValue

double maxValue

unit

String unit

utilization

double utilization

Class neqsim.process.fielddevelopment.evaluation.BottleneckAnalyzer.DebottleneckOption

class DebottleneckOption extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

capacityIncrease

double capacityIncrease

description

String description

estimatedCostMUSD

double estimatedCostMUSD

implementationMonths

int implementationMonths

name

String name

Class neqsim.process.fielddevelopment.evaluation.ConceptKPIs

class ConceptKPIs extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualEmissionsTonnes

double annualEmissionsTonnes

annualOpexMUSD

double annualOpexMUSD

blowdownTimeMinutes

double blowdownTimeMinutes

breakEvenOilPriceUSD

double breakEvenOilPriceUSD

co2IntensityKgPerBoe

double co2IntensityKgPerBoe

conceptName

String conceptName

economicScore

double economicScore

economicsReport

EconomicsEstimator.EconomicsReport economicsReport

emissionsClass

String emissionsClass

emissionsReport

EmissionsTracker.EmissionsReport emissionsReport

environmentalScore

double environmentalScore

estimatedRecoveryPercent

double estimatedRecoveryPercent

evaluationTime

LocalDateTime evaluationTime

fieldLifeYears

double fieldLifeYears

flowAssuranceOverall

FlowAssuranceResult flowAssuranceOverall

flowAssuranceReport

FlowAssuranceReport flowAssuranceReport

hydrateMarginC

double hydrateMarginC

minMetalTempC

double minMetalTempC

notes

Map<String,String> notes

npv10MUSD

double npv10MUSD

overallScore

double overallScore

plateauRateMsm3d

double plateauRateMsm3d

safetyLevel

SafetyReport.SafetyLevel safetyLevel

safetyReport

SafetyReport safetyReport

technicalScore

double technicalScore

totalCapexMUSD

double totalCapexMUSD

warnings

Map<String,String> warnings

waxMarginC

double waxMarginC

Class neqsim.process.fielddevelopment.evaluation.DecommissioningEstimator

class DecommissioningEstimator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageWellDepthM

double averageWellDepthM

Average well depth in meters.

facilityType

DecommissioningEstimator.FacilityType facilityType

Facility type.

numberOfRisers

int numberOfRisers

Number of risers.

numberOfSubseaStructures

int numberOfSubseaStructures

Subsea manifolds/templates.

numberOfWells

int numberOfWells

Number of wells to P&A.

pipelineDiameterInch

double pipelineDiameterInch

Pipeline diameter in inches.

pipelineLengthKm

double pipelineLengthKm

Pipeline length in km.

substructureWeightTonnes

double substructureWeightTonnes

Jacket/substructure weight in tonnes.

topsideWeightTonnes

double topsideWeightTonnes

Topside weight in tonnes.

waterDepthM

double waterDepthM

Water depth in meters.

Class neqsim.process.fielddevelopment.evaluation.DecommissioningEstimator.CostItem

class CostItem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

String category

costMUSD

double costMUSD

notes

String notes

Class neqsim.process.fielddevelopment.evaluation.DevelopmentOptionRanker

class DevelopmentOptionRanker extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

options

List<DevelopmentOptionRanker.DevelopmentOption> options

Development options to rank.

weights

Map<DevelopmentOptionRanker.Criterion, Double> weights

Criterion weights (sum should equal 1.0).

Class neqsim.process.fielddevelopment.evaluation.DevelopmentOptionRanker.DevelopmentOption

class DevelopmentOption extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

description

String description

name

String name

normalizedScores

Map<DevelopmentOptionRanker.Criterion, Double> normalizedScores

rank

int rank

scores

Map<DevelopmentOptionRanker.Criterion, Double> scores

weightedScore

double weightedScore

Class neqsim.process.fielddevelopment.evaluation.DevelopmentOptionRanker.RankingResult

class RankingResult extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

maxValues

Map<DevelopmentOptionRanker.Criterion, Double> maxValues

minValues

Map<DevelopmentOptionRanker.Criterion, Double> minValues

rankedOptions

List<DevelopmentOptionRanker.DevelopmentOption> rankedOptions

weights

Map<DevelopmentOptionRanker.Criterion, Double> weights

Class neqsim.process.fielddevelopment.evaluation.EnvironmentalReporter

class EnvironmentalReporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualGasProductionSm3

double annualGasProductionSm3

Annual gas production (Sm³/year).

annualOilProductionSm3

double annualOilProductionSm3

Annual oil production (Sm³/year).

annualWaterProductionM3

double annualWaterProductionM3

Annual water production (m³/year).

operatingHoursPerYear

double operatingHoursPerYear

Annual operating hours.

powerSupplyType

EnvironmentalReporter.PowerSupplyType powerSupplyType

Power supply type.

Class neqsim.process.fielddevelopment.evaluation.EnvironmentalReporter.EnvironmentalReport

class EnvironmentalReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2FromFlaringTonnesYear

double co2FromFlaringTonnesYear

CO2 from flaring (tonnes/year).

co2FromPowerTonnesYear

double co2FromPowerTonnesYear

CO2 from power generation (tonnes/year).

co2IntensityKgBoe

double co2IntensityKgBoe

CO2 intensity (kg CO2/boe).

co2TaxNOK

double co2TaxNOK

Annual CO2 tax (NOK).

gasProductionSm3Year

double gasProductionSm3Year

Annual gas production (Sm³/year).

isLowEmitter

boolean isLowEmitter

Low emitter status (<10 kg CO2/boe).

isOIWCompliant

boolean isOIWCompliant

OIW NCS compliance status.

oilDischargeTonnesYear

double oilDischargeTonnesYear

Annual oil discharge (tonnes/year).

oilProductionSm3Year

double oilProductionSm3Year

Annual oil production (Sm³/year).

oiwMgL

double oiwMgL

Oil-in-water concentration (mg/L).

powerSupplyType

EnvironmentalReporter.PowerSupplyType powerSupplyType

Power supply type.

totalCO2TonnesYear

double totalCO2TonnesYear

Total CO2 emissions (tonnes/year).

totalPowerKW

double totalPowerKW

Total facility power consumption (kW).

waterProductionM3Year

double waterProductionM3Year

Annual water production (m³/year).

Class neqsim.process.fielddevelopment.evaluation.MonteCarloRunner

class MonteCarloRunner extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cashFlowEngine

CashFlowEngine cashFlowEngine

Cash flow engine for economic calculations.

discountRate

double discountRate

Discount rate for NPV calculation.

iterations

int iterations

Number of Monte Carlo iterations.

random

Random random

Random number generator.

results

List<MonteCarloRunner.IterationResult> results

Results from all iterations.

variables

List<MonteCarloRunner.UncertainVariable> variables

List of uncertain variables.

Class neqsim.process.fielddevelopment.evaluation.MonteCarloRunner.IterationResult

class IterationResult extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

converged

boolean converged

inputs

Map<String,Double> inputs

irr

double irr

npv

double npv

paybackYears

double paybackYears

profitabilityIndex

double profitabilityIndex

Class neqsim.process.fielddevelopment.evaluation.MonteCarloRunner.UncertainVariable

class UncertainVariable extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

distribution

MonteCarloRunner.DistributionType distribution

name

String name

param1

double param1

param2

double param2

param3

double param3

Class neqsim.process.fielddevelopment.evaluation.ProductionAllocator

class ProductionAllocator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

exportMeter

ProductionAllocator.ProductionSource exportMeter

Export meter reference.

sources

List<ProductionAllocator.ProductionSource> sources

Production sources (wells, manifolds).

Class neqsim.process.fielddevelopment.evaluation.ScenarioAnalyzer

class ScenarioAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

feedStream

StreamInterface feedStream

processSystem

ProcessSystem processSystem

results

List<ScenarioAnalyzer.ScenarioResult> results

scenarios

Map<String, ScenarioAnalyzer.ScenarioParameters> scenarios

Class neqsim.process.fielddevelopment.evaluation.ScenarioAnalyzer.ScenarioParameters

class ScenarioParameters extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasRate

double gasRate

GOR

double GOR

oilRate

double oilRate

pressure

double pressure

temperature

double temperature

waterCut

double waterCut

waterRate

double waterRate

Class neqsim.process.fielddevelopment.evaluation.ScenarioAnalyzer.ScenarioResult

class ScenarioResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2TonnesPerDay

double co2TonnesPerDay

converged

boolean converged

coolingDutyMW

double coolingDutyMW

errorMessage

String errorMessage

heatingDutyMW

double heatingDutyMW

name

String name

parameters

ScenarioAnalyzer.ScenarioParameters parameters

powerMW

double powerMW

Class neqsim.process.fielddevelopment.evaluation.SeparatorSizingCalculator

class SeparatorSizingCalculator extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.fielddevelopment.evaluation.SeparatorSizingCalculator.SeparatorSizingResult

class SeparatorSizingResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualRetentionTime

double actualRetentionTime

Actual liquid retention time (s).

designStandard

SeparatorSizingCalculator.DesignStandard designStandard

Design standard used.

gasCapacityUtilization

double gasCapacityUtilization

Gas capacity utilization (0-1).

gasDensity

double gasDensity

Gas density used (kg/m³).

internalDiameter

double internalDiameter

Internal diameter (m).

kFactor

double kFactor

Souders-Brown K-factor used (m/s).

liquidCapacityUtilization

double liquidCapacityUtilization

Liquid capacity utilization (0-1).

liquidDensity

double liquidDensity

Liquid density used (kg/m³).

maxGasVelocity

double maxGasVelocity

Maximum allowable gas velocity (m/s).

requiredRetentionTime

double requiredRetentionTime

Required liquid retention time (s).

separatorType

SeparatorSizingCalculator.SeparatorType separatorType

Separator orientation type.

slendernessRatio

double slendernessRatio

Slenderness ratio (L/D).

tanTanLength

double tanTanLength

Tan-to-tan length (m).

Package neqsim.process.fielddevelopment.facility

Class neqsim.process.fielddevelopment.facility.BlockConfig

class BlockConfig extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

parameters

Map<String,Object> parameters

type

BlockType type

Class neqsim.process.fielddevelopment.facility.ConceptToProcessLinker

class ConceptToProcessLinker extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressionEfficiency

double compressionEfficiency

Compression efficiency.

exportGasPressureBar

double exportGasPressureBar

Export gas pressure (bara).

exportOilTemperatureC

double exportOilTemperatureC

Export oil temperature (C).

hpSeparatorPressureBar

double hpSeparatorPressureBar

HP separator pressure (bara).

inletTemperatureC

double inletTemperatureC

Inlet temperature (C).

lpSeparatorPressureBar

double lpSeparatorPressureBar

LP separator pressure (bara).

Class neqsim.process.fielddevelopment.facility.FacilityBuilder

class FacilityBuilder extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

blocks

List<BlockConfig> blocks

concept

FieldConcept concept

designMargin

double designMargin

includeFlare

boolean includeFlare

includePowerGen

boolean includePowerGen

name

String name

redundancyRequirements

List<String> redundancyRequirements

Class neqsim.process.fielddevelopment.facility.FacilityConfig

class FacilityConfig extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

blocks

List<BlockConfig> blocks

concept

FieldConcept concept

designMargin

double designMargin

name

String name

redundancyRequirements

List<String> redundancyRequirements

Package neqsim.process.fielddevelopment.network

Class neqsim.process.fielddevelopment.network.MultiphaseFlowIntegrator

class MultiphaseFlowIntegrator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

elevationChangeM

double elevationChangeM

Elevation change (m, positive = uphill).

erosionalConstant

double erosionalConstant

Erosional velocity constant (API RP 14E).

minArrivalPressureBar

double minArrivalPressureBar

Minimum arrival pressure (bara).

numberOfSegments

int numberOfSegments

Number of calculation segments.

overallHtcWm2K

double overallHtcWm2K

Overall heat transfer coefficient (W/m2K).

pipelineDiameterM

double pipelineDiameterM

Pipeline inner diameter (m).

pipelineLengthKm

double pipelineLengthKm

Pipeline length (km).

pipelineRoughnessM

double pipelineRoughnessM

Pipeline roughness (m).

seabedTemperatureC

double seabedTemperatureC

Seabed temperature (C).

Class neqsim.process.fielddevelopment.network.MultiphaseFlowIntegrator.PipelineResult

class PipelineResult extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

arrivalPressureBar

double arrivalPressureBar

arrivalTemperatureC

double arrivalTemperatureC

erosionalVelocityMs

double erosionalVelocityMs

erosionalVelocityRatio

double erosionalVelocityRatio

feasible

boolean feasible

flowRegime

MultiphaseFlowIntegrator.FlowRegime flowRegime

gasVelocityMs

double gasVelocityMs

infeasibilityReason

String infeasibilityReason

inletPressureBar

double inletPressureBar

inletTemperatureC

double inletTemperatureC

liquidHoldup

double liquidHoldup

liquidVelocityMs

double liquidVelocityMs

mixtureVelocityMs

double mixtureVelocityMs

pressureDropBar

double pressureDropBar

slugFrequencyPerMin

double slugFrequencyPerMin

Class neqsim.process.fielddevelopment.network.NetworkResult

class NetworkResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

Whether the solver converged.

flowlinePressureDrops

Map<String,Double> flowlinePressureDrops

Flowline pressure drops (bar).

iterations

int iterations

Number of iterations.

manifoldPressure

double manifoldPressure

Manifold pressure (bara).

networkName

String networkName

Network name.

residual

double residual

Final residual.

solutionMode

NetworkSolver.SolutionMode solutionMode

Solution mode used.

totalRate

double totalRate

Total production rate (Sm3/day).

wellEnabled

Map<String,Boolean> wellEnabled

Well enabled status.

wellheadPressures

Map<String,Double> wellheadPressures

Wellhead pressures (bara).

wellRates

Map<String,Double> wellRates

Individual well rates (Sm3/day).

Class neqsim.process.fielddevelopment.network.NetworkSolver

class NetworkSolver extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lastIterations

int lastIterations

lastResidual

double lastResidual

manifoldPressure

double manifoldPressure

maxIterations

int maxIterations

maxTotalRate

double maxTotalRate

name

String name

referenceFluid

SystemInterface referenceFluid

relaxationFactor

double relaxationFactor

solutionMode

NetworkSolver.SolutionMode solutionMode

solved

boolean solved

targetTotalRate

double targetTotalRate

tolerance

double tolerance

wellNodes

List<NetworkSolver.WellNode> wellNodes

Class neqsim.process.fielddevelopment.network.NetworkSolver.WellNode

class WellNode extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allocatedRate

double allocatedRate

chokeOpening

double chokeOpening

enabled

boolean enabled

flowlineDiameter

double flowlineDiameter

flowlineLength

double flowlineLength

flowlinePressureDrop

double flowlinePressureDrop

flowlineRoughness

double flowlineRoughness

name

String name

well

WellSystem well

wellheadPressure

double wellheadPressure

Class neqsim.process.fielddevelopment.network.TiebackRouteNetwork

class TiebackRouteNetwork extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

hostHubName

String hostHubName

name

String name

segments

List<TiebackRouteNetwork.RouteSegment> segments

Class neqsim.process.fielddevelopment.network.TiebackRouteNetwork.RouteSegment

class RouteSegment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

diameterInches

double diameterInches

heatTransferCoefficientWm2K

double heatTransferCoefficientWm2K

inletWaterDepthM

double inletWaterDepthM

lengthKm

double lengthKm

name

String name

outletWaterDepthM

double outletWaterDepthM

seabedTemperatureC

double seabedTemperatureC

shared

boolean shared

type

TiebackRouteNetwork.SegmentType type

Package neqsim.process.fielddevelopment.reservoir

Class neqsim.process.fielddevelopment.reservoir.InjectionStrategy

class InjectionStrategy extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasInjectionEfficiency

double gasInjectionEfficiency

Gas injection efficiency (0-1).

injectionTemperature

double injectionTemperature

Injection fluid temperature (K).

maxGasRate

double maxGasRate

Maximum gas injection rate (Sm3/day).

maxWaterRate

double maxWaterRate

Maximum water injection rate (Sm3/day).

strategyType

InjectionStrategy.StrategyType strategyType

targetPressure

double targetPressure

Target reservoir pressure for pressure maintenance (bara).

targetVRR

double targetVRR

Target voidage replacement ratio (1.0 = full replacement).

wagCycleDays

double wagCycleDays

WAG cycle duration in days.

wagRatio

double wagRatio

WAG ratio (water cycles / gas cycles).

waterInjectionEfficiency

double waterInjectionEfficiency

Water injection efficiency (0-1).

Class neqsim.process.fielddevelopment.reservoir.InjectionStrategy.InjectionResult

class InjectionResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

achievedVRR

double achievedVRR

Achieved VRR.

gasInjectionRate

double gasInjectionRate

Required gas injection rate (Sm3/day).

productionVoidage

double productionVoidage

Production voidage (m3/day at reservoir conditions).

strategyType

InjectionStrategy.StrategyType strategyType

Strategy type used.

waterInjectionRate

double waterInjectionRate

Required water injection rate (Sm3/day).

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel

class InjectionWellModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

drainageRadius

double drainageRadius

formationPermeability

double formationPermeability

formationThickness

double formationThickness

formationWaterViscosity

double formationWaterViscosity

fracturePressure

double fracturePressure

gasMolecularWeight

double gasMolecularWeight

gasViscosity

double gasViscosity

injectionTemperature

double injectionTemperature

injectionType

InjectionWellModel.InjectionType injectionType

maxBHP

double maxBHP

minWHP

double minWHP

poissonsRatio

double poissonsRatio

pumpEfficiency

double pumpEfficiency

reservoirPressure

double reservoirPressure

reservoirTemperature

double reservoirTemperature

reservoirTemperatureForThermal

double reservoirTemperatureForThermal

skinFactor

double skinFactor

surfaceInjectionPressure

double surfaceInjectionPressure

thermalExpansionCoeff

double thermalExpansionCoeff

thermalStressEnabled

boolean thermalStressEnabled

tubingID

double tubingID

tubingRoughness

double tubingRoughness

waterDensity

double waterDensity

waterViscosity

double waterViscosity

wellboreRadius

double wellboreRadius

wellDepth

double wellDepth

youngsModulus

double youngsModulus

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel.InjectionPattern

class InjectionPattern extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

injectorCount

int injectorCount

patternType

InjectionWellModel.InjectionPattern.PatternType patternType

producerCount

int producerCount

wellSpacing

double wellSpacing

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel.InjectionWellResult

class InjectionWellResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

achievableRate

double achievableRate

Achievable injection rate (Sm3/day).

achievableRateWithInterference

double achievableRateWithInterference

Achievable rate with interference (Sm3/day).

bottomholePressure

double bottomholePressure

Actual BHP (bara).

effectiveReservoirPressure

double effectiveReservoirPressure

Effective reservoir pressure with interference (bara).

expectedHallSlope

double expectedHallSlope

Expected Hall slope.

hallSlope

double hallSlope

Hall plot slope (bar·day/Sm3).

injectionType

InjectionWellModel.InjectionType injectionType

Injection type.

injectivityIndex

double injectivityIndex

Injectivity index (Sm3/day/bar).

interferencePressure

double interferencePressure

Interference pressure from nearby wells (bar).

limitedByPressure

boolean limitedByPressure

Whether rate is limited by pressure.

needsPump

boolean needsPump

Whether pump is needed.

pumpPower

double pumpPower

Pump power (kW).

requiredBHP

double requiredBHP

Required BHP for target rate (bara).

requiredPumpDeltaP

double requiredPumpDeltaP

Required pump pressure boost (bar).

skinContribution

double skinContribution

Skin contribution to Hall slope.

targetRate

double targetRate

Target injection rate (Sm3/day).

wellheadPressure

double wellheadPressure

Wellhead injection pressure (bara).

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel.InjectionZone

class InjectionZone extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

depth

double depth

TVD to zone midpoint (m).

fracturePressure

double fracturePressure

Fracture pressure (bara).

isTargetZone

boolean isTargetZone

Whether this is the target zone for injection.

name

String name

Zone name.

permeability

double permeability

Formation permeability (mD).

reservoirPressure

double reservoirPressure

Reservoir pressure (bara).

skinFactor

double skinFactor

Skin factor (dimensionless).

thickness

double thickness

Formation thickness (m).

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel.InjectionZoneResult

class InjectionZoneResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

allocationFraction

double allocationFraction

Fraction of total injection.

fractureRisk

boolean fractureRisk

Whether BHP exceeds zone fracture pressure.

hallSlope

double hallSlope

Hall slope for this zone (bar day/Sm3).

injectivityIndex

double injectivityIndex

Injectivity index for this zone (Sm3/day/bar).

isTargetZone

boolean isTargetZone

Whether this is a target zone.

rate

double rate

Injection rate into this zone (Sm3/day).

zoneName

String zoneName

Zone name.

Class neqsim.process.fielddevelopment.reservoir.InjectionWellModel.MultiZoneInjectionResult

class MultiZoneInjectionResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

commonBHP

double commonBHP

Common BHP used for allocation (bara).

injectionEfficiency

double injectionEfficiency

Injection efficiency: fraction entering target zone(s).

outOfZoneRate

double outOfZoneRate

Total out-of-zone rate (Sm3/day).

totalRate

double totalRate

Total achievable rate across all zones (Sm3/day).

zoneResults

List<InjectionWellModel.InjectionZoneResult> zoneResults

Per-zone results.

Class neqsim.process.fielddevelopment.reservoir.ReservoirCouplingExporter

class ReservoirCouplingExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

datumDepth

double datumDepth

Datum depth for VFP tables (m).

format

ReservoirCouplingExporter.ExportFormat format

Export format.

gorRange

double[] gorRange

keywordsBuffer

StringBuilder keywordsBuffer

Generated keywords buffer.

pressureRange

double[] pressureRange

processSystem

ProcessSystem processSystem

Process system for calculations.

rateRange

double[] rateRange

scheduleEntries

List<ReservoirCouplingExporter.ScheduleEntry> scheduleEntries

Schedule entries.

vfpTables

List<ReservoirCouplingExporter.VfpTable> vfpTables

Generated VFP tables.

wctRange

double[] wctRange

Class neqsim.process.fielddevelopment.reservoir.ReservoirCouplingExporter.ScheduleEntry

class ScheduleEntry extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

content

String content

date

Date date

keyword

String keyword

Class neqsim.process.fielddevelopment.reservoir.ReservoirCouplingExporter.VfpTable

class VfpTable extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

almValues

double[] almValues

bhpValues

double[][][][][] bhpValues

datumDepth

double datumDepth

flowRates

double[] flowRates

gorValues

double[] gorValues

tableNumber

int tableNumber

thpValues

double[] thpValues

wctValues

double[] wctValues

wellName

String wellName

Class neqsim.process.fielddevelopment.reservoir.TransientWellModel

class TransientWellModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

boundaryType

TransientWellModel.BoundaryType boundaryType

currentPressure

double currentPressure

drainageRadius

double drainageRadius

fluidDensity

double fluidDensity

fluidViscosity

double fluidViscosity

formationThickness

double formationThickness

formationVolumeFactor

double formationVolumeFactor

hydraulicDiffusivity

double hydraulicDiffusivity

initialPressure

double initialPressure

permeability

double permeability

porosity

double porosity

rateHistory

List<TransientWellModel.RateChange> rateHistory

reservoirTemperature

double reservoirTemperature

skinFactor

double skinFactor

totalCompressibility

double totalCompressibility

transmissibility

double transmissibility

wellboreRadius

double wellboreRadius

wellboreStorage

double wellboreStorage

wellType

TransientWellModel.WellType wellType

Class neqsim.process.fielddevelopment.reservoir.TransientWellModel.BuildupResult

class BuildupResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

extrapolatedPressure

double extrapolatedPressure

Extrapolated pressure P* (bara).

hornerSlope

double hornerSlope

Horner slope (bar/log cycle).

initialPressure

double initialPressure

Initial reservoir pressure (bara).

permeabilityFromSlope

double permeabilityFromSlope

Permeability from Horner slope (mD).

pressureRecovery

double pressureRecovery

Pressure recovery (bar).

producingTime

double producingTime

Producing time before shut-in (hours).

rateBeforeShutIn

double rateBeforeShutIn

Rate before shut-in (Sm³/day).

shutInPressure

double shutInPressure

Shut-in pressure (bara).

shutInTime

double shutInTime

Shut-in time (hours).

skinFromIntercept

double skinFromIntercept

Skin factor from intercept.

Class neqsim.process.fielddevelopment.reservoir.TransientWellModel.DrawdownResult

class DrawdownResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

drawdown

double drawdown

Pressure drawdown (bar).

flowingPressure

double flowingPressure

Flowing bottomhole pressure (bara).

flowRate

double flowRate

Flow rate (Sm³/day).

infiniteActing

boolean infiniteActing

Whether in infinite-acting period.

initialPressure

double initialPressure

Initial reservoir pressure (bara).

productivityIndex

double productivityIndex

Productivity index (Sm³/day/bar).

radiusOfInvestigation

double radiusOfInvestigation

Radius of investigation (m).

time

double time

Time (hours).

Class neqsim.process.fielddevelopment.reservoir.TransientWellModel.PressurePoint

class PressurePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

pressure

double pressure

Pressure (bara).

rate

double rate

Rate at this time (Sm³/day).

time

double time

Time (hours).

Class neqsim.process.fielddevelopment.reservoir.TransientWellModel.RateChange

class RateChange extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

rate

double rate

Rate after change (Sm³/day).

time

double time

Time of rate change (hours).

Package neqsim.process.fielddevelopment.screening

Class neqsim.process.fielddevelopment.screening.ArtificialLiftScreener

class ArtificialLiftScreener extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubblePointPressure

double bubblePointPressure

discountRate

double discountRate

economicLife

int economicLife

electricityAvailable

boolean electricityAvailable

electricityCost

double electricityCost

electricityPower

double electricityPower

formationGOR

double formationGOR

gasCost

double gasCost

gasLiftAvailable

boolean gasLiftAvailable

gasLiftPressure

double gasLiftPressure

hydraulicPowerAvailable

boolean hydraulicPowerAvailable

oilDensityStd

double oilDensityStd

oilPrice

double oilPrice

oilViscosity

double oilViscosity

productivityIndex

double productivityIndex

reservoirPressure

double reservoirPressure

reservoirTemperature

double reservoirTemperature

targetRate

double targetRate

tubingID

double tubingID

waterCut

double waterCut

waterDensity

double waterDensity

wellDepth

double wellDepth

wellheadPressure

double wellheadPressure

wellheadTemperature

double wellheadTemperature

Class neqsim.process.fielddevelopment.screening.ArtificialLiftScreener.MethodResult

class MethodResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

additionalInfo

String additionalInfo

Additional information.

capex

double capex

CAPEX (USD).

feasible

boolean feasible

Whether method is feasible.

infeasibilityReason

String infeasibilityReason

Reason if infeasible.

liftIncrease

double liftIncrease

Production increase vs. natural flow (%).

method

ArtificialLiftScreener.LiftMethod method

Lift method.

npv

double npv

NPV (USD).

opex

double opex

OPEX (USD/day).

powerConsumption

double powerConsumption

Power consumption (kW).

productionRate

double productionRate

Production rate (Sm3/day).

rank

int rank

Ranking (1 = best).

Class neqsim.process.fielddevelopment.screening.ArtificialLiftScreener.ScreeningResult

class ScreeningResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

methods

List<ArtificialLiftScreener.MethodResult> methods

naturalFlowRate

double naturalFlowRate

Natural flow rate (Sm3/day).

productivityIndex

double productivityIndex

Productivity index (Sm3/day/bar).

recommendedMethod

ArtificialLiftScreener.MethodResult recommendedMethod

reservoirPressure

double reservoirPressure

Reservoir pressure (bara).

reservoirTemperature

double reservoirTemperature

Reservoir temperature (°C).

waterCut

double waterCut

Water cut (fraction).

wellDepth

double wellDepth

Well depth (m).

Class neqsim.process.fielddevelopment.screening.DetailedEmissionsCalculator

class DetailedEmissionsCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coldVentingRateMSm3PerDay

double coldVentingRateMSm3PerDay

combustionSources

List<DetailedEmissionsCalculator.CombustionSource> combustionSources

compressorSealCount

int compressorSealCount

condensateProductionBblPerDay

double condensateProductionBblPerDay

flangeCount

int flangeCount

flareCO2ContentPercent

double flareCO2ContentPercent

flareEfficiency

double flareEfficiency

flaringRateMSm3PerDay

double flaringRateMSm3PerDay

fugitiveRatePercent

double fugitiveRatePercent

gasProductionMSm3PerDay

double gasProductionMSm3PerDay

gridRegion

String gridRegion

oilProductionBblPerDay

double oilProductionBblPerDay

operatingHoursPerYear

double operatingHoursPerYear

processVentingRateSm3PerDay

double processVentingRateSm3PerDay

producedCO2ContentPercent

double producedCO2ContentPercent

pumpSealCount

int pumpSealCount

purchasedElectricityMWh

double purchasedElectricityMWh

tankBreathingRateSm3PerDay

double tankBreathingRateSm3PerDay

valveCount

int valveCount

ventingProducedCO2

boolean ventingProducedCO2

Class neqsim.process.fielddevelopment.screening.DetailedEmissionsCalculator.DetailedEmissionsReport

class DetailedEmissionsReport extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

emissionsBySource

Map<String,Double> emissionsBySource

Emissions by individual source.

gasProductionMSm3PerYear

double gasProductionMSm3PerYear

Gas production (MSm3/year).

intensityKgCO2PerBoe

double intensityKgCO2PerBoe

Intensity (kg CO2e/boe).

oilProductionBblPerYear

double oilProductionBblPerYear

Oil production (bbl/year).

rating

String rating

Emissions rating.

scope1Breakdown

Map<String,Double> scope1Breakdown

Scope 1 breakdown by category.

scope1Total

double scope1Total

Scope 1 total emissions (tCO2e/year).

scope2Breakdown

Map<String,Double> scope2Breakdown

Scope 2 breakdown by category.

scope2Total

double scope2Total

Scope 2 total emissions (tCO2e/year).

totalEmissions

double totalEmissions

Total emissions (tCO2e/year).

totalProductionBoePerYear

double totalProductionBoePerYear

Total production (boe/year).

Class neqsim.process.fielddevelopment.screening.EconomicsEstimator.EconomicsReport

class EconomicsReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

accuracyRangePercent

double accuracyRangePercent

Accuracy range as percentage (e.g., 40 means ±40%).

annualOpexMUSD

double annualOpexMUSD

Annual OPEX in million USD per year.

capexBreakdown

Map<String,Double> capexBreakdown

Detailed CAPEX breakdown by category.

capexPerBoeUSD

double capexPerBoeUSD

CAPEX per barrel of oil equivalent in USD.

equipmentCapexMUSD

double equipmentCapexMUSD

Process equipment CAPEX in million USD.

facilityCapexMUSD

double facilityCapexMUSD

Facility base CAPEX in million USD.

infrastructureCapexMUSD

double infrastructureCapexMUSD

Infrastructure (pipelines, umbilicals) CAPEX in million USD.

opexBreakdown

Map<String,Double> opexBreakdown

Detailed OPEX breakdown by category.

opexPerBoeUSD

double opexPerBoeUSD

OPEX per barrel of oil equivalent in USD.

totalCapexMUSD

double totalCapexMUSD

Total CAPEX in million USD.

wellCapexMUSD

double wellCapexMUSD

Well drilling and completion CAPEX in million USD.

Class neqsim.process.fielddevelopment.screening.EmissionsTracker.EmissionsReport

class EmissionsReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

emissionSources

Map<String,Double> emissionSources

flaringEmissionsTonnesPerYear

double flaringEmissionsTonnesPerYear

fugitiveEmissionsTonnesPerYear

double fugitiveEmissionsTonnesPerYear

intensityKgCO2PerBoe

double intensityKgCO2PerBoe

powerEmissionsTonnesPerYear

double powerEmissionsTonnesPerYear

powerSource

String powerSource

totalEmissionsTonnesPerYear

double totalEmissionsTonnesPerYear

totalPowerMW

double totalPowerMW

ventedCO2TonnesPerYear

double ventedCO2TonnesPerYear

Class neqsim.process.fielddevelopment.screening.EnergyEfficiencyCalculator

class EnergyEfficiencyCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

availableWasteHeatKW

double availableWasteHeatKW

compressorEfficiency

double compressorEfficiency

compressorPowerKW

double compressorPowerKW

condensateProductionBblPerDay

double condensateProductionBblPerDay

coolingDutyKW

double coolingDutyKW

electricalLoadKW

double electricalLoadKW

facilityType

EnergyEfficiencyCalculator.FacilityType facilityType

flaringRateMSm3PerDay

double flaringRateMSm3PerDay

fuelGasRateMSm3PerDay

double fuelGasRateMSm3PerDay

gasProductionMSm3PerDay

double gasProductionMSm3PerDay

hasWasteHeatRecovery

boolean hasWasteHeatRecovery

heaterEfficiency

double heaterEfficiency

heatingDutyKW

double heatingDutyKW

oilProductionBblPerDay

double oilProductionBblPerDay

primaryDriverType

EnergyEfficiencyCalculator.DriverType primaryDriverType

pumpEfficiency

double pumpEfficiency

pumpPowerKW

double pumpPowerKW

rotatingEquipmentPowerKW

double rotatingEquipmentPowerKW

ventingRateMSm3PerDay

double ventingRateMSm3PerDay

wasteHeatRecoveryEfficiency

double wasteHeatRecoveryEfficiency

waterProductionM3PerDay

double waterProductionM3PerDay

Class neqsim.process.fielddevelopment.screening.EnergyEfficiencyCalculator.EnergyReport

class EnergyReport extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

energyEfficiencyIndex

double energyEfficiencyIndex

Energy efficiency index (actual/reference).

energyLosses

Map<String,Double> energyLosses

Energy losses by source.

flaringIntensity

double flaringIntensity

Flaring intensity (Sm3/boe).

fuelGasConsumption

double fuelGasConsumption

Fuel gas consumption (MSm3/day).

heatSinks

Map<String,Double> heatSinks

Heat sinks.

potentialHeatRecoveryKW

double potentialHeatRecoveryKW

Potential heat recovery (kW).

powerBreakdown

Map<String,Double> powerBreakdown

Power breakdown by category.

recommendations

List<EnergyEfficiencyCalculator.Recommendation> recommendations

Improvement recommendations.

referenceSEC

double referenceSEC

Reference SEC for benchmarking (kWh/boe).

specificEnergyConsumption

double specificEnergyConsumption

Specific energy consumption (kWh/boe).

totalAvailableWasteHeatKW

double totalAvailableWasteHeatKW

Total available waste heat (kW).

totalCoolingDutyKW

double totalCoolingDutyKW

Total cooling duty (kW).

totalElectricPowerKW

double totalElectricPowerKW

Total electric power (kW).

totalEnergyLossKW

double totalEnergyLossKW

Total energy loss (kW).

totalHeatDemandKW

double totalHeatDemandKW

Total heat demand (kW).

totalHeatingDutyKW

double totalHeatingDutyKW

Total heating duty (kW).

totalPotentialSavingsKW

double totalPotentialSavingsKW

Total potential savings (kW).

totalProductionBoePerDay

double totalProductionBoePerDay

Total production (boe/day).

wasteHeatSources

Map<String,Double> wasteHeatSources

Waste heat sources.

Class neqsim.process.fielddevelopment.screening.EnergyEfficiencyCalculator.Recommendation

class Recommendation extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

String category

Category.

description

String description

Description.

estimatedCapex

double estimatedCapex

Estimated CAPEX (USD).

paybackYears

double paybackYears

Simple payback (years).

potentialSavingsKW

double potentialSavingsKW

Potential savings (kW).

Class neqsim.process.fielddevelopment.screening.FlowAssuranceReport

class FlowAssuranceReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

asphalteneResult

FlowAssuranceResult asphalteneResult

corrosionResult

FlowAssuranceResult corrosionResult

erosionResult

FlowAssuranceResult erosionResult

hydrateFormationTempC

double hydrateFormationTempC

hydrateMarginC

double hydrateMarginC

hydrateResult

FlowAssuranceResult hydrateResult

minOperatingTempC

double minOperatingTempC

mitigationOptions

Map<String,String> mitigationOptions

recommendations

Map<String,String> recommendations

scalingResult

FlowAssuranceResult scalingResult

waxAppearanceTempC

double waxAppearanceTempC

waxMarginC

double waxMarginC

waxResult

FlowAssuranceResult waxResult

Class neqsim.process.fielddevelopment.screening.GasLiftCalculator

class GasLiftCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubblePointPressure

double bubblePointPressure

compressionPower

double compressionPower

compressionRatio

double compressionRatio

compressorEfficiency

double compressorEfficiency

formationGOR

double formationGOR

gasMolecularWeight

double gasMolecularWeight

injectionPressure

double injectionPressure

injectionRateAtOptimal

double injectionRateAtOptimal

injectionTemperature

double injectionTemperature

maxProductionRate

double maxProductionRate

maxValves

int maxValves

oilDensityStd

double oilDensityStd

optimalGLR

double optimalGLR

performanceCurve

List<GasLiftCalculator.PerformancePoint> performanceCurve

productivityIndex

double productivityIndex

reservoirPressure

double reservoirPressure

reservoirTemperature

double reservoirTemperature

tubingID

double tubingID

tubingRoughness

double tubingRoughness

valvePositions

List<GasLiftCalculator.ValvePosition> valvePositions

valvePressureDrop

double valvePressureDrop

valveSpacing

double valveSpacing

waterCut

double waterCut

waterDensity

double waterDensity

wellDepth

double wellDepth

wellheadPressure

double wellheadPressure

wellheadTemperature

double wellheadTemperature

Class neqsim.process.fielddevelopment.screening.GasLiftCalculator.GasLiftResult

class GasLiftResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

compressionPower

double compressionPower

Compression power required (kW).

feasible

boolean feasible

Whether gas lift is feasible.

injectionRateAtOptimal

double injectionRateAtOptimal

Gas injection rate at optimal (MSm3/day).

liftIncrease

double liftIncrease

Production increase percentage.

naturalFlowRate

double naturalFlowRate

Natural flow rate without gas lift (Sm3/day).

oilRateAtOptimal

double oilRateAtOptimal

Oil production rate at optimal GLR (Sm3/day).

optimalGLR

double optimalGLR

Optimal total GLR (Sm3/Sm3).

performanceCurve

List<GasLiftCalculator.PerformancePoint> performanceCurve

Performance curve data.

valvePositions

List<GasLiftCalculator.ValvePosition> valvePositions

Valve positions.

Class neqsim.process.fielddevelopment.screening.GasLiftCalculator.PerformancePoint

class PerformancePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

injectionGLR

double injectionGLR

Injection GLR (Sm3/Sm3).

injectionRate

double injectionRate

Injection rate (MSm3/day).

productionRate

double productionRate

Production rate (Sm3/day).

totalGLR

double totalGLR

Total GLR (Sm3/Sm3).

Class neqsim.process.fielddevelopment.screening.GasLiftCalculator.ValvePosition

class ValvePosition extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

closingPressure

double closingPressure

Closing pressure (bara).

depth

double depth

Valve depth (m TVD).

isOperatingValve

boolean isOperatingValve

Whether this is the operating valve.

openingPressure

double openingPressure

Opening pressure (bara).

valveNumber

int valveNumber

Valve number (1 = top).

Class neqsim.process.fielddevelopment.screening.GasLiftOptimizer

class GasLiftOptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

availableGas

double availableGas

compressionEfficiency

double compressionEfficiency

dischargePressure

double dischargePressure

gasSpecificGravity

double gasSpecificGravity

maxCompressionPower

double maxCompressionPower

maxIterations

int maxIterations

method

GasLiftOptimizer.OptimizationMethod method

suctionPressure

double suctionPressure

tolerance

double tolerance

wells

List<GasLiftOptimizer.WellData> wells

Class neqsim.process.fielddevelopment.screening.GasLiftOptimizer.AllocationResult

class AllocationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

allocations

List<GasLiftOptimizer.WellAllocation> allocations

Individual well allocations.

availableGas

double availableGas

Available gas (Sm³/d).

compressionPower

double compressionPower

Required compression power (kW).

converged

boolean converged

Converged flag.

fieldGasEfficiency

double fieldGasEfficiency

Field gas efficiency (incremental oil / total gas).

gasUtilization

double gasUtilization

Gas utilization (fraction).

iterations

int iterations

Number of iterations (for iterative methods).

method

GasLiftOptimizer.OptimizationMethod method

Optimization method used.

totalGasAllocated

double totalGasAllocated

Total gas allocated (Sm³/d).

totalIncrementalOil

double totalIncrementalOil

Total incremental oil from gas lift (Sm³/d).

totalNaturalFlow

double totalNaturalFlow

Total natural flow (no gas lift) (Sm³/d).

totalOilRate

double totalOilRate

Total oil production (Sm³/d).

Class neqsim.process.fielddevelopment.screening.GasLiftOptimizer.PerformanceCurve

class PerformanceCurve extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gasRates

double[] gasRates

Gas injection rates (Sm³/day).

naturalFlowRate

double naturalFlowRate

Natural flow rate (zero injection).

oilRates

double[] oilRates

Corresponding oil rates (Sm³/day).

optimalGLR

double optimalGLR

Optimal GLR from performance curve analysis.

Class neqsim.process.fielddevelopment.screening.GasLiftOptimizer.WellAllocation

class WellAllocation extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gasEfficiency

double gasEfficiency

Gas utilization efficiency (incremental oil / gas).

gasRate

double gasRate

Allocated gas rate (Sm³/d).

incrementalOil

double incrementalOil

Incremental oil from gas lift (Sm³/d).

marginalResponse

double marginalResponse

Marginal response at allocation point (Sm³ oil / Sm³ gas).

naturalFlowRate

double naturalFlowRate

Natural flow rate (Sm³/d).

oilRate

double oilRate

Resulting oil rate (Sm³/d).

wellName

String wellName

Well name.

Class neqsim.process.fielddevelopment.screening.GasLiftOptimizer.WellData

class WellData extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

curve

GasLiftOptimizer.PerformanceCurve curve

enabled

boolean enabled

maxGasRate

double maxGasRate

minGasRate

double minGasRate

name

String name

priority

double priority

Class neqsim.process.fielddevelopment.screening.LifecycleEmissionsProfile

class LifecycleEmissionsProfile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualEmissions

List<LifecycleEmissionsProfile.AnnualEmissions> annualEmissions

Class neqsim.process.fielddevelopment.screening.LifecycleEmissionsProfile.AnnualEmissions

class AnnualEmissions extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flaringEmissionsTonnes

double flaringEmissionsTonnes

fugitiveEmissionsTonnes

double fugitiveEmissionsTonnes

loadFactor

double loadFactor

powerEmissionsTonnes

double powerEmissionsTonnes

powerMw

double powerMw

powerSource

String powerSource

production

double production

productionBoe

double productionBoe

totalEmissionsTonnes

double totalEmissionsTonnes

ventedCo2Tonnes

double ventedCo2Tonnes

year

int year

Class neqsim.process.fielddevelopment.screening.RegionalCostFactors

class RegionalCostFactors extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

capexFactor

double capexFactor

laborFactor

double laborFactor

notes

String notes

opexFactor

double opexFactor

regionCode

String regionCode

regionName

String regionName

wellCostFactor

double wellCostFactor

Class neqsim.process.fielddevelopment.screening.SafetyReport

class SafetyReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

estimatedBlowdownTimeMinutes

double estimatedBlowdownTimeMinutes

h2sPresent

boolean h2sPresent

highPressure

boolean highPressure

inventoryTonnes

double inventoryTonnes

mannedFacility

boolean mannedFacility

minimumMetalTempC

double minimumMetalTempC

overallLevel

SafetyReport.SafetyLevel overallLevel

psvRequiredCapacityKgPerHr

double psvRequiredCapacityKgPerHr

requirements

Map<String,String> requirements

scenarios

Map<String,Double> scenarios

Package neqsim.process.fielddevelopment.subsea

Class neqsim.process.fielddevelopment.subsea.SubseaProductionSystem

class SubseaProductionSystem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

architecture

SubseaProductionSystem.SubseaArchitecture architecture

discoveryLatitude

double discoveryLatitude

discoveryLongitude

double discoveryLongitude

flowlineDiameterInches

double flowlineDiameterInches

flowlineMaterial

String flowlineMaterial

flowlineWallThicknessMm

double flowlineWallThicknessMm

hasRun

boolean hasRun

hostFacility

HostFacility hostFacility

insulationThicknessMm

double insulationThicknessMm

manifoldCount

int manifoldCount

manifoldPressureDropBara

double manifoldPressureDropBara

name

String name

ratePerWellSm3d

double ratePerWellSm3d

reservoirFluid

SystemInterface reservoirFluid

reservoirPressureBara

double reservoirPressureBara

reservoirTemperatureC

double reservoirTemperatureC

result

SubseaProductionSystem.SubseaSystemResult result

seabedTemperatureC

double seabedTemperatureC

tiebackDistanceKm

double tiebackDistanceKm

tubingDiameterInches

double tubingDiameterInches

umbilicalLengthKm

double umbilicalLengthKm

waterDepthM

double waterDepthM

wellCount

int wellCount

wellDepthM

double wellDepthM

wellheadPressureBara

double wellheadPressureBara

wellheadTemperatureC

double wellheadTemperatureC

Class neqsim.process.fielddevelopment.subsea.SubseaProductionSystem.SubseaSystemResult

class SubseaSystemResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

architecture

SubseaProductionSystem.SubseaArchitecture architecture

arrivalFlowrateSm3d

double arrivalFlowrateSm3d

arrivalPressureBara

double arrivalPressureBara

arrivalTemperatureC

double arrivalTemperatureC

controlSystemCostMusd

double controlSystemCostMusd

flowlineDiameterInches

double flowlineDiameterInches

hydrateFormationTempC

double hydrateFormationTempC

hydrateMarginC

double hydrateMarginC

manifoldCostMusd

double manifoldCostMusd

pipelineCostMusd

double pipelineCostMusd

requiresHeating

boolean requiresHeating

requiresInsulation

boolean requiresInsulation

requiresMEG

boolean requiresMEG

subseaTreeCostMusd

double subseaTreeCostMusd

systemName

String systemName

tiebackDistanceKm

double tiebackDistanceKm

totalPressureDropBara

double totalPressureDropBara

totalProductionSm3d

double totalProductionSm3d

totalSubseaCapexMusd

double totalSubseaCapexMusd

umbilicalCostMusd

double umbilicalCostMusd

waterDepthM

double waterDepthM

wellCount

int wellCount

Package neqsim.process.fielddevelopment.tieback

Class neqsim.process.fielddevelopment.tieback.HostFacility

class HostFacility extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasCapacityMSm3d

double gasCapacityMSm3d

Maximum gas processing capacity in MSm3/d.

gasUtilization

double gasUtilization

Current gas utilization (0-1).

latitude

double latitude

Latitude in decimal degrees (positive = North).

liquidCapacityM3d

double liquidCapacityM3d

Maximum total liquid capacity in m3/d (oil + water + condensate).

liquidUtilization

double liquidUtilization

Current liquid utilization (0-1).

longitude

double longitude

Longitude in decimal degrees (positive = East).

maxTieInPressureBara

double maxTieInPressureBara

Maximum tie-in pressure in bara.

maxTieInTemperatureC

double maxTieInTemperatureC

Maximum tie-in temperature in Celsius.

minTieInPressureBara

double minTieInPressureBara

Minimum tie-in pressure in bara.

name

String name

oilCapacityBopd

double oilCapacityBopd

Maximum oil processing capacity in bbl/d.

oilUtilization

double oilUtilization

Current oil utilization (0-1).

operator

String operator

type

HostFacility.FacilityType type

waterCapacityM3d

double waterCapacityM3d

Maximum water handling capacity in m3/d.

waterDepthM

double waterDepthM

Water depth in meters.

waterUtilization

double waterUtilization

Current water utilization (0-1).

Class neqsim.process.fielddevelopment.tieback.HostFacility.HostCapacityReport

class HostCapacityReport extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

activeBottleneckCount

int activeBottleneckCount

capacityAvailable

boolean capacityAvailable

gasCapacityAvailable

boolean gasCapacityAvailable

hostName

String hostName

liquidCapacityAvailable

boolean liquidCapacityAvailable

oilCapacityAvailable

boolean oilCapacityAvailable

primaryBottleneckName

String primaryBottleneckName

primaryBottleneckUtilization

double primaryBottleneckUtilization

processCapacityAvailable

boolean processCapacityAvailable

processModelUsed

boolean processModelUsed

requiredGasMSm3d

double requiredGasMSm3d

requiredLiquidM3d

double requiredLiquidM3d

requiredOilBopd

double requiredOilBopd

requiredWaterM3d

double requiredWaterM3d

spareGasMSm3d

double spareGasMSm3d

spareLiquidM3d

double spareLiquidM3d

spareOilBopd

double spareOilBopd

spareWaterM3d

double spareWaterM3d

summary

String summary

waterCapacityAvailable

boolean waterCapacityAvailable

Class neqsim.process.fielddevelopment.tieback.TiebackAnalyzer

class TiebackAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

discountRate

double discountRate

Discount rate for NPV calculations.

drillingCostPerWellMusd

double drillingCostPerWellMusd

Drilling cost per well in MUSD.

flowAssuranceScreener

FlowAssuranceScreener flowAssuranceScreener

Flow assurance screener using NeqSim thermodynamics.

gasPriceUsdPerSm3

double gasPriceUsdPerSm3

Default gas price in USD/Sm3.

hostModificationBaseCostMusd

double hostModificationBaseCostMusd

Base cost for host modifications in MUSD.

manifoldBaseCostMusd

double manifoldBaseCostMusd

Base cost for manifold/template in MUSD.

maxTiebackDistanceKm

double maxTiebackDistanceKm

Maximum tieback distance in km.

minHydrateMarginC

double minHydrateMarginC

Minimum hydrate margin for PASS in Celsius.

oilPriceUsdPerBbl

double oilPriceUsdPerBbl

Default oil price in USD/bbl.

opexFraction

double opexFraction

OPEX as fraction of CAPEX per year.

pipelineCostPerKmMusd

double pipelineCostPerKmMusd

Pipeline cost per km in MUSD (base, adjusted for diameter).

seabedTemperatureC

double seabedTemperatureC

Seabed temperature for flow assurance in Celsius.

subseaTreeCostMusd

double subseaTreeCostMusd

Cost per subsea tree in MUSD.

taxModel

NorwegianTaxModel taxModel

umbilicalCostPerKmMusd

double umbilicalCostPerKmMusd

Umbilical cost per km in MUSD.

Class neqsim.process.fielddevelopment.tieback.TiebackAnalyzer.TiebackScreeningResult

class TiebackScreeningResult extends Object implements Serializable

serialVersionUID:

1100L

Serialized Fields

distanceKm

double distanceKm

estimatedCapexMusd

double estimatedCapexMusd

estimatedNpvMusd

double estimatedNpvMusd

failureReason

String failureReason

hostName

String hostName

passed

boolean passed

Class neqsim.process.fielddevelopment.tieback.TiebackOption

class TiebackOption extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

arrivalPressureBara

double arrivalPressureBara

Estimated arrival pressure at host in bara.

arrivalTemperatureC

double arrivalTemperatureC

Estimated arrival temperature at host in Celsius.

breakevenPrice

double breakevenPrice

Breakeven price (oil: USD/bbl, gas: USD/Sm3).

corrosionResult

FlowAssuranceResult corrosionResult

Corrosion screening result.

discoveryName

String discoveryName

distanceKm

double distanceKm

Tieback distance in kilometers.

drillingCapexMusd

double drillingCapexMusd

Drilling and completion CAPEX.

erosionalVelocityRatio

double erosionalVelocityRatio

Mixture velocity divided by erosional velocity limit.

feasible

boolean feasible

Whether the option is technically feasible.

fieldLifeYears

double fieldLifeYears

Expected field life in years.

flowAssuranceNotes

String flowAssuranceNotes

Flow assurance notes/recommendations.

flowRegime

String flowRegime

Flow regime identified for the tieback route.

hostCapacitySummary

String hostCapacitySummary

Host capacity summary from nameplate and optional process-model screening.

hostModificationCapexMusd

double hostModificationCapexMusd

Host modifications CAPEX.

hostName

String hostName

hydrateFormationTemperatureC

double hydrateFormationTemperatureC

Hydrate formation temperature calculated for route arrival pressure in Celsius.

hydrateMarginC

double hydrateMarginC

Hydrate subcooling margin in Celsius.

hydrateResult

FlowAssuranceResult hydrateResult

Hydrate screening result.

hydraulicFeasible

boolean hydraulicFeasible

Whether the hydraulic screening case meets pressure and velocity constraints.

hydraulicInfeasibilityReason

String hydraulicInfeasibilityReason

Reason for hydraulic infeasibility if hydraulic screening fails.

infeasibilityReason

String infeasibilityReason

Reason for infeasibility (if not feasible).

irr

double irr

Internal Rate of Return (0-1).

maxProductionRate

double maxProductionRate

Maximum production rate constrained by host capacity (gas: MSm3/d, oil: bbl/d).

maxWaterDepthM

double maxWaterDepthM

Maximum water depth along route in meters.

npvMusd

double npvMusd

Net Present Value in MUSD.

optionId

String optionId

paybackYears

double paybackYears

Payback period in years.

pipelineCapexMusd

double pipelineCapexMusd

Pipeline CAPEX.

pipelineDiameterInches

double pipelineDiameterInches

Pipeline diameter in inches.

pipelineHeatTransferCoefficientWm2K

double pipelineHeatTransferCoefficientWm2K

Pipeline heat transfer coefficient used in hydraulic screening in W/m2K.

rateUnit

String rateUnit

Production rate unit.

recoverableReserves

double recoverableReserves

Total recoverable reserves.

reservesUnit

String reservesUnit

Reserves unit.

routeBranchCount

int routeBranchCount

Number of branch segments in the route network.

routeInstalledLengthKm

double routeInstalledLengthKm

Total installed route length including branch segments in kilometres.

routeNetworkName

String routeNetworkName

Optional route-network name for multi-segment routes.

routeRiserCount

int routeRiserCount

Number of riser segments in the route network.

routeSharedCorridorLengthKm

double routeSharedCorridorLengthKm

Shared corridor length in kilometres.

routeSummary

String routeSummary

Route summary with branches, risers, shared corridor, and host hub information.

shutdownCooldownRiskScore

double shutdownCooldownRiskScore

Screening score for shutdown cooldown risk from 0 (low) to 1 (high).

shutdownCooldownTimeToHydrateHours

double shutdownCooldownTimeToHydrateHours

Estimated cooldown time to hydrate risk during shutdown in hours.

subseaCapexMusd

double subseaCapexMusd

Subsea equipment CAPEX (trees, manifolds, controls).

totalCapexMusd

double totalCapexMusd

Total CAPEX.

umbilicalCapexMusd

double umbilicalCapexMusd

Umbilical CAPEX.

watMarginC

double watMarginC

WAT margin in Celsius.

waxResult

FlowAssuranceResult waxResult

Wax screening result.

wellCount

int wellCount

Number of subsea wells.

Class neqsim.process.fielddevelopment.tieback.TiebackReport

class TiebackReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

discoveryLatitude

double discoveryLatitude

Discovery latitude.

discoveryLongitude

double discoveryLongitude

Discovery longitude.

discoveryName

String discoveryName

Discovery name.

options

List<TiebackOption> options

All evaluated options (sorted by NPV, best first).

Package neqsim.process.fielddevelopment.tieback.capacity

Class neqsim.process.fielddevelopment.tieback.capacity.DebottleneckDecision

class DebottleneckDecision extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneckName

String bottleneckName

Bottleneck or capacity category addressed by the decision.

capexMusd

double capexMusd

Estimated investment in million USD.

description

String description

Decision description.

npvMusd

double npvMusd

Net present value after investment in million USD.

paybackYears

double paybackYears

Simple payback period in years.

recommended

boolean recommended

True when NPV is positive.

recoveredValueMusd

double recoveredValueMusd

Estimated recoverable deferred value in million USD.

Class neqsim.process.fielddevelopment.tieback.capacity.HostTieInPoint

class HostTieInPoint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseProcessRate

double baseProcessRate

Optional fixed base process rate in the process-rate unit.

gasToProcessRateFactor

double gasToProcessRateFactor

Process-rate-unit factor per MSm3/d gas.

liquidToProcessRateFactor

double liquidToProcessRateFactor

Process-rate-unit factor per m3/d total liquid.

oilToProcessRateFactor

double oilToProcessRateFactor

Process-rate-unit factor per bbl/d oil.

processRateUnit

String processRateUnit

Flow unit used when setting the process stream rate.

processStreamReference

String processStreamReference

Process stream reference, for example "Host Feed" or "HP Sep.gasOut".

waterToProcessRateFactor

double waterToProcessRateFactor

Process-rate-unit factor per m3/d water.

Class neqsim.process.fielddevelopment.tieback.capacity.ProductionLoad

class ProductionLoad extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasRateMSm3d

double gasRateMSm3d

Average gas rate in million standard cubic metres per day.

gasValueUsdPerMSm3

double gasValueUsdPerMSm3

Gas value in USD per million standard cubic metre.

liquidRateM3d

double liquidRateM3d

Explicit total-liquid rate in cubic metres per day, or zero to infer from oil and water.

liquidValueUsdPerM3

double liquidValueUsdPerM3

Liquid value in USD per cubic metre for explicit total-liquid streams.

oilRateBopd

double oilRateBopd

Average oil rate in stock-tank barrels per day.

oilValueUsdPerBbl

double oilValueUsdPerBbl

Oil value in USD per stock-tank barrel.

periodLengthDays

double periodLengthDays

Length of the planning period in days.

periodName

String periodName

Period label used in reports.

waterRateM3d

double waterRateM3d

Average produced-water rate in cubic metres per day.

waterValueUsdPerM3

double waterValueUsdPerM3

Water value in USD per cubic metre, often negative for handling cost.

year

int year

Calendar year for discounting and profile alignment.

Class neqsim.process.fielddevelopment.tieback.capacity.ProductionProfileSeries

class ProductionProfileSeries extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

loads

List<ProductionLoad> loads

Ordered list of production loads.

name

String name

Profile name used in reporting.

Class neqsim.process.fielddevelopment.tieback.capacity.TieInCapacityPlanner

class TieInCapacityPlanner extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allocationPolicy

CapacityAllocationPolicy allocationPolicy

Allocation policy for constrained periods.

defaultDebottleneckCapexMusd

double defaultDebottleneckCapexMusd

Default debottleneck investment estimate.

defaultGasValueUsdPerMSm3

double defaultGasValueUsdPerMSm3

Gas value in USD per MSm3 used when loads do not carry values.

defaultLiquidValueUsdPerM3

double defaultLiquidValueUsdPerM3

Liquid value in USD per m3 used when loads do not carry values.

defaultOilValueUsdPerBbl

double defaultOilValueUsdPerBbl

Oil value in USD per bbl used when loads do not carry values.

defaultWaterValueUsdPerM3

double defaultWaterValueUsdPerM3

Water value in USD per m3 used when loads do not carry values.

discountRate

double discountRate

Discount rate used for deferred value.

holdbackPolicy

HoldbackPolicy holdbackPolicy

Holdback policy for unaccepted satellite production.

hostFacility

HostFacility hostFacility

Host facility receiving the satellite production.

hostProductionProfile

ProductionProfileSeries hostProductionProfile

Base host production profile.

processSearchIterations

int processSearchIterations

Number of binary-search iterations for process holdback.

processUtilizationLimit

double processUtilizationLimit

Maximum accepted process utilization as fraction.

satelliteProductionProfile

ProductionProfileSeries satelliteProductionProfile

Satellite production profile.

tieInPoint

HostTieInPoint tieInPoint

Optional process-model tie-in point.

Class neqsim.process.fielddevelopment.tieback.capacity.TieInCapacityResult

class TieInCapacityResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allocationPolicy

CapacityAllocationPolicy allocationPolicy

Allocation policy used.

debottleneckDecisions

List<DebottleneckDecision> debottleneckDecisions

Debottleneck decisions.

holdbackPolicy

HoldbackPolicy holdbackPolicy

Holdback policy used.

hostName

String hostName

Host name.

periodResults

List<TieInPeriodResult> periodResults

Period-by-period results.

summary

String summary

Text summary.

Class neqsim.process.fielddevelopment.tieback.capacity.TieInPeriodResult

class TieInPeriodResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acceptedBase

ProductionLoad acceptedBase

Accepted base-host production.

acceptedSatellite

ProductionLoad acceptedSatellite

Accepted satellite production.

baseRequest

ProductionLoad baseRequest

Requested base-host production.

deferredIntoPeriod

ProductionLoad deferredIntoPeriod

Deferred satellite backlog entering this period.

deferredToNextPeriod

ProductionLoad deferredToNextPeriod

Satellite backlog carried to the next period.

deferredValueMusd

double deferredValueMusd

Undiscounted deferred or curtailed value in million USD.

deferredValueNpvMusd

double deferredValueNpvMusd

Discounted deferred or curtailed value in million USD.

heldBackSatellite

ProductionLoad heldBackSatellite

Satellite production not accepted in this period.

nameplateBottleneck

String nameplateBottleneck

Nameplate bottleneck category.

periodName

String periodName

Period name used in reports.

processBottleneck

String processBottleneck

Process-model bottleneck name.

processBottleneckUtilization

double processBottleneckUtilization

Process-model bottleneck utilization fraction.

processCapacityAvailable

boolean processCapacityAvailable

True if the process model was feasible after any process holdback.

processModelUsed

boolean processModelUsed

True if an attached process model was used.

processUtilizationSummary

Map<String,Double> processUtilizationSummary

Equipment utilization summary from the process model.

satelliteAllocationScale

double satelliteAllocationScale

Nameplate allocation scale applied to the satellite request.

satelliteRequest

ProductionLoad satelliteRequest

Satellite request including scheduled and deferred volumes.

scheduledSatellite

ProductionLoad scheduledSatellite

Satellite production scheduled for this period before deferred backlog.

summary

String summary

Concise result summary.

year

int year

Calendar year for the period.

Package neqsim.process.fielddevelopment.workflow

Class neqsim.process.fielddevelopment.workflow.FieldDevelopmentWorkflow

class FieldDevelopmentWorkflow extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculateEmissions

boolean calculateEmissions

concept

FieldConcept concept

countryCode

String countryCode

declineRate

double declineRate

designStandard

String designStandard

discountRate

double discountRate

facilityConfig

FacilityConfig facilityConfig

fidelityLevel

FieldDevelopmentWorkflow.FidelityLevel fidelityLevel

fieldLifeYears

int fieldLifeYears

firstProductionYear

int firstProductionYear

fluid

SystemInterface fluid

gasPrice

double gasPrice

gasTariff

double gasTariff

gridEmissionFactor

double gridEmissionFactor

lastResult

WorkflowResult lastResult

monteCarloIterations

int monteCarloIterations

oilPrice

double oilPrice

plateauYears

double plateauYears

potentialHosts

List<HostFacility> potentialHosts

powerSupplyType

String powerSupplyType

processSystem

ProcessSystem processSystem

projectName

String projectName

reservoir

SimpleReservoir reservoir

runMechanicalDesign

boolean runMechanicalDesign

runSubseaAnalysis

boolean runSubseaAnalysis

studyPhase

FieldDevelopmentWorkflow.StudyPhase studyPhase

subseaArchitecture

SubseaProductionSystem.SubseaArchitecture subseaArchitecture

subseaSystem

SubseaProductionSystem subseaSystem

tiebackAnalyzer

TiebackAnalyzer tiebackAnalyzer

tiebackDistanceKm

double tiebackDistanceKm

waterDepthM

double waterDepthM

wells

List<WellSystem> wells

Class neqsim.process.fielddevelopment.workflow.WorkflowResult

class WorkflowResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualCO2eKtonnes

double annualCO2eKtonnes

Annual CO2 emissions [ktonnes/year].

arrivalPressureBara

double arrivalPressureBara

Arrival pressure at host facility [bara].

arrivalTemperatureC

double arrivalTemperatureC

Arrival temperature at host facility [°C].

breakevenGasPrice

double breakevenGasPrice

Breakeven gas price (USD/Sm3).

breakevenOilPrice

double breakevenOilPrice

Breakeven oil price (USD/bbl).

cashFlowResult

CashFlowEngine.CashFlowResult cashFlowResult

Cash flow calculation result.

co2IntensityKgPerBoe

double co2IntensityKgPerBoe

CO2 intensity [kg CO2e/boe].

conceptKPIs

ConceptKPIs conceptKPIs

Concept KPIs - only for CONCEPTUAL and DETAILED.

economicsReport

EconomicsEstimator.EconomicsReport economicsReport

Economics estimation report.

emissionBreakdown

Map<String,Double> emissionBreakdown

Emission breakdown by category.

fidelityLevel

FieldDevelopmentWorkflow.FidelityLevel fidelityLevel

Fidelity level used.

flowAssuranceResult

FlowAssuranceReport flowAssuranceResult

Flow assurance screening result.

gasProfile

Map<Integer,Double> gasProfile

Gas production profile (year to Sm3/day).

gridEmissionFactor

double gridEmissionFactor

Grid emission factor [kg CO2/kWh].

irr

double irr

Internal rate of return (0-1).

mechanicalDesign

SystemMechanicalDesign mechanicalDesign

System mechanical design results - only for DETAILED.

monteCarloResult

SensitivityAnalyzer.MonteCarloResult monteCarloResult

Monte Carlo result - only for DETAILED.

npv

double npv

Net present value at configured discount rate (MUSD).

npvP10

double npvP10

P10 NPV from Monte Carlo (MUSD) - only for DETAILED.

npvP50

double npvP50

P50 NPV from Monte Carlo (MUSD) - only for DETAILED.

npvP90

double npvP90

P90 NPV from Monte Carlo (MUSD) - only for DETAILED.

oilProfile

Map<Integer,Double> oilProfile

Oil production profile (year to bbl/day).

paybackYears

double paybackYears

Payback period in years.

powerBreakdownMW

Map<String,Double> powerBreakdownMW

Power breakdown by equipment type.

powerSupplyType

String powerSupplyType

Power supply type (used for emission calculation).

projectName

String projectName

Project name.

selectedTiebackOption

TiebackOption selectedTiebackOption

Selected tieback option (best feasible).

subseaCapexMusd

double subseaCapexMusd

Total subsea CAPEX [MUSD].

subseaSimulationError

String subseaSimulationError

Subsea simulation error message (if simulation failed).

subseaSystemResult

SubseaProductionSystem.SubseaSystemResult subseaSystemResult

Subsea production system result.

tiebackReport

TiebackReport tiebackReport

Tieback analysis report (multiple host comparison).

tornadoResult

SensitivityAnalyzer.TornadoResult tornadoResult

Tornado analysis result - only for DETAILED.

totalEquipmentWeightTonnes

double totalEquipmentWeightTonnes

Total equipment weight [tonnes].

totalFootprintM2

double totalFootprintM2

Total module footprint [m2].

totalPowerMW

double totalPowerMW

Total power consumption [MW].

waterProfile

Map<Integer,Double> waterProfile

Water production profile (year to Sm3/day).

Package neqsim.process.instrumentdesign

Class neqsim.process.instrumentdesign.InstrumentDesign

class InstrumentDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultSilLevel

int defaultSilLevel

Default SIL level for safety instruments.

hazardousAreaZone

String hazardousAreaZone

Hazardous area zone classification for the equipment location.

includeSafetyInstruments

boolean includeSafetyInstruments

Whether to include safety instrumented function (SIF) instruments.

instrumentList

InstrumentList instrumentList

The list of instruments for this equipment.

instrumentStandard

String instrumentStandard

Design standard for instrumentation (e.g. "IEC", "ISA").

processEquipment

ProcessEquipmentInterface processEquipment

The process equipment this instrument design belongs to.

protectionConcept

String protectionConcept

Explosion protection concept (e.g. "Ex d", "Ex e", "Ex ia").

Class neqsim.process.instrumentdesign.InstrumentDesignResponse

class InstrumentDesignResponse extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentName

String equipmentName

equipmentType

String equipmentType

instrumentIndex

List<Map<String,Object>> instrumentIndex

ioSummary

Map<String,Integer> ioSummary

safetyInstrumentCount

int safetyInstrumentCount

totalCostUSD

double totalCostUSD

totalInstruments

int totalInstruments

Class neqsim.process.instrumentdesign.InstrumentList

class InstrumentList extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentTag

String equipmentTag

Equipment tag prefix used for tag number generation (e.g. "V-101").

instruments

List<InstrumentSpecification> instruments

The list of instrument specifications.

tagCounter

int tagCounter

Running counter for tag number generation per ISA prefix.

Class neqsim.process.instrumentdesign.InstrumentSpecification

class InstrumentSpecification extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

connectionSize

String connectionSize

Process connection size (e.g. "1/2 NPT", "DN15 RF").

deviceClassName

String deviceClassName

The runtime measurement device class this spec maps to.

estimatedCostUSD

double estimatedCostUSD

Estimated unit cost in USD.

exProtection

String exProtection

Explosion protection marking (e.g. "Ex ia IIC T4 Ga").

hazardousAreaZone

String hazardousAreaZone

Hazardous area zone classification (e.g. "Zone 1", "Zone 2").

instrumentType

String instrumentType

Full instrument type name (e.g. "PressureTransmitter").

ioType

String ioType

I/O type: "AI" (analog input), "AO" (analog output), "DI" (digital input), "DO" (digital output).

isaSymbol

String isaSymbol

ISA-5.1 functional identification (e.g. "PT", "TT", "LT", "FT", "PSH", "LSLL").

material

String material

Wetted parts material (e.g. "316SS", "Hastelloy C276").

outputSignal

String outputSignal

Output signal type (e.g. "4-20mA HART", "Foundation Fieldbus", "Discrete 24VDC").

rangeMax

double rangeMax

Measurement range maximum in engineering units.

rangeMin

double rangeMin

Measurement range minimum in engineering units.

rangeUnit

String rangeUnit

Engineering unit for the measurement range (e.g. "bara", "degC", "%").

safetyRelated

boolean safetyRelated

Whether this instrument is safety-related (part of SIS).

service

String service

Service description (e.g. "HP Separator Gas Outlet Pressure").

silRating

int silRating

SIL rating (0 = no SIL, 1-3 = SIL level per IEC 61508).

tagNumber

String tagNumber

Tag number (e.g. "PT-1001A"). Generated or manually assigned.

Package neqsim.process.instrumentdesign.compressor

Class neqsim.process.instrumentdesign.compressor.CompressorInstrumentDesign

class CompressorInstrumentDesign extends InstrumentDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

includeAntiSurge

boolean includeAntiSurge

Whether anti-surge control instrumentation is included.

numberOfBearings

int numberOfBearings

Number of bearings (each gets X-Y vibration probes).

Package neqsim.process.instrumentdesign.heatexchanger

Class neqsim.process.instrumentdesign.heatexchanger.HeatExchangerInstrumentDesign

class HeatExchangerInstrumentDesign extends InstrumentDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

heatExchangerType

HeatExchangerInstrumentDesign.HeatExchangerType heatExchangerType

Type of heat exchanger.

Package neqsim.process.instrumentdesign.pipeline

Class neqsim.process.instrumentdesign.pipeline.PipelineInstrumentDesign

class PipelineInstrumentDesign extends InstrumentDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

includeLeakDetection

boolean includeLeakDetection

Whether leak detection instrumentation is included.

includePigDetection

boolean includePigDetection

Whether pig detection instruments are included.

Package neqsim.process.instrumentdesign.separator

Class neqsim.process.instrumentdesign.separator.SeparatorInstrumentDesign

class SeparatorInstrumentDesign extends InstrumentDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

threePhase

boolean threePhase

Whether this is a three-phase separator (adds water level instruments).

Package neqsim.process.instrumentdesign.system

Class neqsim.process.instrumentdesign.system.SystemInstrumentDesign

class SystemInstrumentDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

costPerDCSCabinet

double costPerDCSCabinet

costPerDCSIOChannel

double costPerDCSIOChannel

costPerMarshallingCabinet

double costPerMarshallingCabinet

costPerSISCabinet

double costPerSISCabinet

costPerSISIOChannel

double costPerSISIOChannel

dcsCabinets

int dcsCabinets

dcsCostUSD

double dcsCostUSD

dcsIOCards

int dcsIOCards

equipmentSummaries

List<Map<String,Object>> equipmentSummaries

Per-equipment summaries.

marshallingCabinets

int marshallingCabinets

processSystem

ProcessSystem processSystem

The process system to analyse.

safetyAI

int safetyAI

safetyDI

int safetyDI

safetyDO

int safetyDO

sisCabinets

int sisCabinets

sisCostUSD

double sisCostUSD

sisIOCards

int sisIOCards

totalAI

int totalAI

totalAO

int totalAO

totalDI

int totalDI

totalDO

int totalDO

totalInstrumentCostUSD

double totalInstrumentCostUSD

totalInstruments

int totalInstruments

totalIO

int totalIO

totalSafetyIO

int totalSafetyIO

Package neqsim.process.instrumentdesign.valve

Class neqsim.process.instrumentdesign.valve.ValveInstrumentDesign

class ValveInstrumentDesign extends InstrumentDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

safetyValve

boolean safetyValve

Whether this is a safety/ESD valve (adds solenoid and limit switches).

Package neqsim.process.integration.ml

Class neqsim.process.integration.ml.HybridModelAdapter

class HybridModelAdapter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bias

double bias

confidenceThreshold

double confidenceThreshold

featureNames

String[] featureNames

modelVersion

String modelVersion

ready

boolean ready

strategy

HybridModelAdapter.CombinationStrategy strategy

weights

double[] weights

Package neqsim.process.logic

Package neqsim.process.logic.control

Class neqsim.process.logic.control.PressureControlLogic

class PressureControlLogic extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

actions

List<LogicAction> actions

controlValve

ControlValve controlValve

name

String name

runSystemAfterChange

boolean runSystemAfterChange

state

LogicState state

system

ProcessSystem system

targetOpening

double targetOpening

Package neqsim.process.logic.esd

Class neqsim.process.logic.esd.ESDLogic

class ESDLogic extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

currentActionIndex

int currentActionIndex

currentDelay

double currentDelay

elapsedTime

double elapsedTime

name

String name

state

LogicState state

Package neqsim.process.logic.hipps

Class neqsim.process.logic.hipps.HIPPSLogic

class HIPPSLogic extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

escalated

boolean escalated

escalationDelay

double escalationDelay

escalationLogic

ProcessLogic escalationLogic

isolationValve

ThrottlingValve isolationValve

isOverridden

boolean isOverridden

isTripped

boolean isTripped

maxBypassedSensors

int maxBypassedSensors

name

String name

state

LogicState state

timeSinceTrip

double timeSinceTrip

valveClosureTime

double valveClosureTime

votingLogic

VotingLogic votingLogic

Package neqsim.process.logic.shutdown

Class neqsim.process.logic.shutdown.ShutdownLogic

class ShutdownLogic extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

currentActionIndex

int currentActionIndex

currentDelay

double currentDelay

elapsedTime

double elapsedTime

emergencyMode

boolean emergencyMode

emergencyShutdownTime

double emergencyShutdownTime

name

String name

rampDownTime

double rampDownTime

state

LogicState state

Package neqsim.process.logic.sis

Class neqsim.process.logic.sis.SafetyInstrumentedFunction

class SafetyInstrumentedFunction extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

isOverridden

boolean isOverridden

isTripped

boolean isTripped

linkedLogics

List<ProcessLogic> linkedLogics

maxBypassedDetectors

int maxBypassedDetectors

name

String name

state

LogicState state

tripTime

long tripTime

votingLogic

VotingLogic votingLogic

Package neqsim.process.logic.startup

Class neqsim.process.logic.startup.StartupLogic

class StartupLogic extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

aborted

boolean aborted

abortReason

String abortReason

currentActionIndex

int currentActionIndex

currentDelay

double currentDelay

elapsedTime

double elapsedTime

maxPermissiveWaitTime

double maxPermissiveWaitTime

name

String name

permissiveWaitTime

double permissiveWaitTime

state

LogicState state

Package neqsim.process.measurementdevice

Class neqsim.process.measurementdevice.CombustionEmissionsCalculator

class CombustionEmissionsCalculator extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.CompressorMonitor

class CompressorMonitor extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressor

Compressor compressor

Class neqsim.process.measurementdevice.CricondenbarAnalyser

class CricondenbarAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.FireDetector

class FireDetector extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

detectionDelay

double detectionDelay

Detection delay in seconds (time to confirm fire before alarm).

detectionThreshold

double detectionThreshold

Detection threshold (0.0 to 1.0, where 1.0 means fire confirmed).

fireDetected

boolean fireDetected

Indicates if fire is currently detected.

location

String location

Detector location/zone identifier.

signalLevel

double signalLevel

Current signal level (simulates IR/UV sensor reading).

Class neqsim.process.measurementdevice.FlowInducedVibrationAnalyser

class FlowInducedVibrationAnalyser extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcSupportArrangement

Boolean calcSupportArrangement

FRMSConstant

double FRMSConstant

method

String method

pipe

PipeBeggsAndBrills pipe

segment

int segment

segmentSet

Boolean segmentSet

supportArrangement

String supportArrangement

supportDistance

double supportDistance

Class neqsim.process.measurementdevice.GasDetector

class GasDetector extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasConcentration

double gasConcentration

Current gas concentration reading.

gasSpecies

String gasSpecies

Gas species being detected (e.g., "methane", "H2S", "CO").

gasType

GasDetector.GasType gasType

Type of gas being detected.

location

String location

Detector location/zone identifier.

lowerExplosiveLimit

double lowerExplosiveLimit

Lower Explosive Limit in ppm (for combustible gases).

responseTime

double responseTime

Detector response time in seconds.

Class neqsim.process.measurementdevice.HydrateEquilibriumTemperatureAnalyser

class HydrateEquilibriumTemperatureAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

referencePressure

double referencePressure

Class neqsim.process.measurementdevice.HydrocarbonDewPointAnalyser

class HydrocarbonDewPointAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

method

String method

referencePressure

double referencePressure

Class neqsim.process.measurementdevice.ImpurityMonitor

class ImpurityMonitor extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

primaryComponent

String primaryComponent

Primary component to report via getMeasuredValue().

trackedComponents

Map<String,Double> trackedComponents

Components to track with optional alarm thresholds (mol fraction).

Class neqsim.process.measurementdevice.LevelTransmitter

class LevelTransmitter extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

separator

Separator separator

Class neqsim.process.measurementdevice.MeasurementDeviceBaseClass

class MeasurementDeviceBaseClass extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

alarmConfig

AlarmConfig alarmConfig

alarmState

AlarmState alarmState

conditionAnalysis

boolean conditionAnalysis

conditionAnalysisMaxDeviation

double conditionAnalysisMaxDeviation

conditionAnalysisMessage

String conditionAnalysisMessage

delayBuffer

Deque<Double> delayBuffer

delaySteps

int delaySteps

faultAccumulator

double faultAccumulator

faultParameter

double faultParameter

faultType

SensorFaultType faultType

fieldValue

double fieldValue

fieldValueSet

boolean fieldValueSet

filteredPreviousValue

double filteredPreviousValue

Previous filtered value used by the first-order filter.

firstOrderTimeConstant

double firstOrderTimeConstant

First-order filter time constant in seconds (0 = disabled).

isOnlineSignal

boolean isOnlineSignal

logging

boolean logging

maximumValue

double maximumValue

minimumValue

double minimumValue

noiseStdDev

double noiseStdDev

onlineMeasurementValue

double onlineMeasurementValue

onlineMeasurementValueUnit

String onlineMeasurementValueUnit

onlineSignal

OnlineSignal onlineSignal

tag

String tag

tagRole

InstrumentTagRole tagRole

unit

String unit

Class neqsim.process.measurementdevice.MolarMassAnalyser

class MolarMassAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.MultiPhaseMeter

class MultiPhaseMeter extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

pressure

double pressure

temperature

double temperature

unitP

String unitP

unitT

String unitT

Class neqsim.process.measurementdevice.NMVOCAnalyser

class NMVOCAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.OilLevelTransmitter

class OilLevelTransmitter extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

separator

ThreePhaseSeparator separator

Class neqsim.process.measurementdevice.pHProbe

class pHProbe extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

alkalinity

double alkalinity

hasCachedPH

boolean hasCachedPH

lastMeasuredAlkalinity

double lastMeasuredAlkalinity

lastMeasuredPH

double lastMeasuredPH

reactiveThermoSystem

SystemInterface reactiveThermoSystem

thermoOps

ThermodynamicOperations thermoOps

Class neqsim.process.measurementdevice.PressureTransmitter

class PressureTransmitter extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.PushButton

class PushButton extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoActivateValve

boolean autoActivateValve

Flag to enable/disable automatic valve activation on push.

isPushed

boolean isPushed

Indicates if button is currently pushed (active).

linkedBlowdownValve

BlowdownValve linkedBlowdownValve

Optional blowdown valve that this button controls (legacy support).

Class neqsim.process.measurementdevice.StreamMeasurementDeviceBaseClass

class StreamMeasurementDeviceBaseClass extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

stream

StreamInterface stream

Class neqsim.process.measurementdevice.TemperatureTransmitter

class TemperatureTransmitter extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.VolumeFlowTransmitter

class VolumeFlowTransmitter extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

measuredPhaseNumber

int measuredPhaseNumber

Class neqsim.process.measurementdevice.WaterContentAnalyser

class WaterContentAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.process.measurementdevice.WaterDewPointAnalyser

class WaterDewPointAnalyser extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

method

String method

referencePressure

double referencePressure

Class neqsim.process.measurementdevice.WaterLevelTransmitter

class WaterLevelTransmitter extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

separator

ThreePhaseSeparator separator

Class neqsim.process.measurementdevice.WellAllocator

class WellAllocator extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

exportGasStream

StreamInterface exportGasStream

exportOilStream

StreamInterface exportOilStream

Package neqsim.process.measurementdevice.online

Class neqsim.process.measurementdevice.online.OnlineSignal

class OnlineSignal extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dateStamp

Date dateStamp

name

String name

plantName

String plantName

transmitterName

String transmitterName

unit

String unit

value

double value

Package neqsim.process.measurementdevice.simpleflowregime

Class neqsim.process.measurementdevice.simpleflowregime.SevereSlugAnalyser

class SevereSlugAnalyser extends MeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

alfaLeft

double alfaLeft

alfaRiser

double alfaRiser

alfaRiserOld

double alfaRiserOld

deltaT

double deltaT

driftVel

double driftVel

flowDistCoeff

double flowDistCoeff

flowPattern

String flowPattern

friction

double friction

frictionStagnant

double frictionStagnant

frictionTot

double frictionTot

frictionValve

double frictionValve

function1

double function1

function2

double function2

gamma

double gamma

gamma1

double gamma1

gamma2

double gamma2

gasDensity

double gasDensity

gravAcc

double gravAcc

gravity

double gravity

gravL

double gravL

gravR

double gravR

holdUp

double holdUp

holdUp1

double holdUp1

holdUp2

double holdUp2

iter

double iter

lambda

double lambda

lambdaStagnant

double lambdaStagnant

Lg

double Lg

mixDensity

double mixDensity

n

double n

normalPressure

double normalPressure

numberOfTimeSteps

int numberOfTimeSteps

outletPressure

double outletPressure

pi

double pi

pressure

double pressure

pressureOld

double pressureOld

Re

double Re

resLiqHeight

double[] resLiqHeight

resLiqHoldUpRiser

double[] resLiqHoldUpRiser

resMixVelocity

double[] resMixVelocity

resPres

double[] resPres

resTime

double[] resTime

severeSlug

SevereSlugAnalyser severeSlug

simulationTime

double simulationTime

slugLength

double slugLength

slugValue

double slugValue

streamS

Stream streamS

temperature

double temperature

transVel

double transVel

U

double U

uLevel

double uLevel

Um

double Um

UmOld

double UmOld

usg

double usg

UsgL

double UsgL

usgMap

double[] usgMap

UsgR

double UsgR

usl

double usl

UslL

double UslL

uslMap

double[] uslMap

UslR

double UslR

valveConstant

double valveConstant

z

double z

zOld

double zOld

Package neqsim.process.measurementdevice.vfm

Class neqsim.process.measurementdevice.vfm.SoftSensor

class SoftSensor extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

inputValues

Map<String,Double> inputValues

lastEstimate

double lastEstimate

lastSensitivity

double[] lastSensitivity

propertyType

SoftSensor.PropertyType propertyType

Class neqsim.process.measurementdevice.vfm.UncertaintyBounds

class UncertaintyBounds extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lower95

double lower95

lower99

double lower99

mean

double mean

standardDeviation

double standardDeviation

unit

String unit

upper95

double upper95

upper99

double upper99

Class neqsim.process.measurementdevice.vfm.VFMResult

class VFMResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

additionalProperties

Map<String,Double> additionalProperties

gasFlowRate

double gasFlowRate

gasOilRatio

double gasOilRatio

gasUncertainty

UncertaintyBounds gasUncertainty

oilFlowRate

double oilFlowRate

oilUncertainty

UncertaintyBounds oilUncertainty

quality

VFMResult.Quality quality

timestamp

Instant timestamp

totalLiquidFlowRate

double totalLiquidFlowRate

waterCut

double waterCut

waterFlowRate

double waterFlowRate

waterUncertainty

UncertaintyBounds waterUncertainty

Class neqsim.process.measurementdevice.vfm.VirtualFlowMeter

class VirtualFlowMeter extends StreamMeasurementDeviceBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

calibrationFactor

double calibrationFactor

chokeOpening

double chokeOpening

downstreamPressure

double downstreamPressure

flowCoefficient

double flowCoefficient

lastCalibration

Instant lastCalibration

lastResult

VFMResult lastResult

pressureUncertainty

double pressureUncertainty

temperature

double temperature

temperatureUncertainty

double temperatureUncertainty

upstreamPressure

double upstreamPressure

Package neqsim.process.mechanicaldesign

Class neqsim.process.mechanicaldesign.AlarmTripScheduleGenerator

class AlarmTripScheduleGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

entries

List<AlarmTripScheduleGenerator.AlarmTripEntry> entries

Generated alarm/trip entries.

processSystem

ProcessSystem processSystem

The process system.

Class neqsim.process.mechanicaldesign.AlarmTripScheduleGenerator.AlarmTripEntry

class AlarmTripEntry extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionType

String actionType

description

String description

equipmentTag

String equipmentTag

instrumentTag

String instrumentTag

priority

AlarmTripScheduleGenerator.AlarmPriority priority

serviceType

AlarmTripScheduleGenerator.ServiceType serviceType

setpointType

String setpointType

setpointValue

double setpointValue

unit

String unit

Class neqsim.process.mechanicaldesign.DesignLimitData

class DesignLimitData extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

corrosionAllowance

double corrosionAllowance

jointEfficiency

double jointEfficiency

maxPressure

double maxPressure

maxTemperature

double maxTemperature

minPressure

double minPressure

minTemperature

double minTemperature

Class neqsim.process.mechanicaldesign.DesignValidationResult

class DesignValidationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

hasRun

boolean hasRun

messages

List<DesignValidationResult.ValidationMessage> messages

metrics

Map<String,Object> metrics

Class neqsim.process.mechanicaldesign.DesignValidationResult.ValidationMessage

class ValidationMessage extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

String category

equipmentName

String equipmentName

message

String message

remediation

String remediation

severity

DesignValidationResult.Severity severity

Class neqsim.process.mechanicaldesign.EngineeringDeliverablesPackage

class EngineeringDeliverablesPackage extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

alarmTripSchedule

AlarmTripScheduleGenerator alarmTripSchedule

Alarm/trip schedule generator.

fireScenarioJson

String fireScenarioJson

Fire scenario results as JSON (from FireProtectionDesign).

generated

boolean generated

Whether generation has been run.

instrumentSchedule

InstrumentScheduleGenerator instrumentSchedule

Instrument schedule generator.

noiseAssessmentJson

String noiseAssessmentJson

Noise assessment results as JSON.

pfdDot

String pfdDot

PFD in Graphviz DOT format.

processSystem

ProcessSystem processSystem

The process system to generate deliverables for.

referenceDesignationGenerator

ReferenceDesignationGenerator referenceDesignationGenerator

IEC 81346 reference designation generator.

sparePartsInventory

SparePartsInventory sparePartsInventory

Spare parts inventory.

statusMap

Map<StudyClass.DeliverableType, EngineeringDeliverablesPackage.DeliverableStatus> statusMap

Generation status for each deliverable.

studyClass

StudyClass studyClass

Study class that determines which deliverables are generated.

thermalUtilities

ThermalUtilitySummary thermalUtilities

Thermal utility summary.

Class neqsim.process.mechanicaldesign.EngineeringDeliverablesPackage.DeliverableStatus

class DeliverableStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

durationMs

long durationMs

message

String message

success

boolean success

type

StudyClass.DeliverableType type

Class neqsim.process.mechanicaldesign.EquipmentDatasheetGenerator

class EquipmentDatasheetGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

documentPrefix

String documentPrefix

Document number prefix.

processSystem

ProcessSystem processSystem

The process system.

projectName

String projectName

Project name.

revision

String revision

Revision.

Class neqsim.process.mechanicaldesign.EquipmentDesignReport

class EquipmentDesignReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

altitudeM

double altitudeM

Installation altitude in meters.

ambientTemperatureC

double ambientTemperatureC

Ambient temperature in Celsius.

cableLengthM

double cableLengthM

Cable length from MCC to motor in meters.

electricalDesign

ElectricalDesign electricalDesign

Electrical design.

equipment

ProcessEquipmentInterface equipment

The process equipment.

frequencyHz

double frequencyHz

Supply frequency in Hz.

gasGroup

String gasGroup

Gas group for Ex-rating (IIA, IIB, IIC).

hazardousZone

int hazardousZone

Hazardous zone (-1 = safe, 0, 1, 2).

issues

List<String> issues

Report issues and warnings.

mechanicalDesign

MechanicalDesign mechanicalDesign

Mechanical design (may already exist on equipment).

motorMechanicalDesign

MotorMechanicalDesign motorMechanicalDesign

Motor mechanical design.

motorPoles

int motorPoles

Motor number of poles.

motorSizingMargin

double motorSizingMargin

Motor sizing margin factor.

motorStandard

String motorStandard

Motor standard: "IEC" or "NEMA".

ratedVoltageV

double ratedVoltageV

Supply voltage in volts.

reportGenerated

boolean reportGenerated

Whether report has been generated.

useVFD

boolean useVFD

Whether to use a VFD.

verdict

String verdict

Report verdict.

Class neqsim.process.mechanicaldesign.FieldDevelopmentDesignOrchestrator

class FieldDevelopmentDesignOrchestrator extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

caseResults

Map<DesignCase, FieldDevelopmentDesignOrchestrator.DesignCaseResult> caseResults

Design case results.

deliverablesPackage

EngineeringDeliverablesPackage deliverablesPackage

Generated engineering deliverables package.

designCases

List<DesignCase> designCases

Design cases to evaluate.

designPhase

DesignPhase designPhase

Current design phase.

processSystem

ProcessSystem processSystem

The process system being designed.

projectId

String projectId

Project identifier.

runId

UUID runId

Unique run identifier.

studyClass

StudyClass studyClass

Study class for engineering deliverables (null = no deliverables).

systemMechanicalDesign

SystemMechanicalDesign systemMechanicalDesign

System mechanical design instance.

validationResult

DesignValidationResult validationResult

Validation results.

workflowHistory

List<FieldDevelopmentDesignOrchestrator.WorkflowStep> workflowHistory

Workflow execution history.

Class neqsim.process.mechanicaldesign.FieldDevelopmentDesignOrchestrator.DesignCaseResult

class DesignCaseResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

converged

boolean converged

designCase

DesignCase designCase

totalVolume

double totalVolume

totalWeight

double totalWeight

validation

DesignValidationResult validation

Class neqsim.process.mechanicaldesign.FieldDevelopmentDesignOrchestrator.WorkflowStep

class WorkflowStep extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

endTime

long endTime

message

String message

startTime

long startTime

stepName

String stepName

success

boolean success

Class neqsim.process.mechanicaldesign.InstrumentScheduleGenerator

class InstrumentScheduleGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

createdDevices

Map<String, MeasurementDeviceInterface> createdDevices

Created measurement device objects keyed by tag number.

entries

List<InstrumentScheduleGenerator.InstrumentEntry> entries

Generated instrument entries.

flowTagNum

int flowTagNum

generated

boolean generated

Whether generation has been run.

levelTagNum

int levelTagNum

pressureTagNum

int pressureTagNum

Tag counters per type.

processSystem

ProcessSystem processSystem

The process system to instrument.

registerOnProcess

boolean registerOnProcess

Whether to register created devices on the ProcessSystem.

temperatureTagNum

int temperatureTagNum

Class neqsim.process.mechanicaldesign.InstrumentScheduleGenerator.InstrumentEntry

class InstrumentEntry extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

alarmHigh

double alarmHigh

alarmLow

double alarmLow

equipmentTag

String equipmentTag

measuredVariable

InstrumentScheduleGenerator.MeasuredVariable measuredVariable

normalValue

double normalValue

rangeMax

double rangeMax

rangeMin

double rangeMin

serviceDescription

String serviceDescription

silRating

InstrumentScheduleGenerator.SilRating silRating

tagNumber

String tagNumber

tripHigh

double tripHigh

tripLow

double tripLow

unit

String unit

Class neqsim.process.mechanicaldesign.MechanicalDesign

class MechanicalDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

companySpecificDesignStandards

String companySpecificDesignStandards

construtionMaterial

String construtionMaterial

corrosionAllowance

double corrosionAllowance

costEstimate

UnitCostEstimateBaseClass costEstimate

defaultLiquidDensity

double defaultLiquidDensity

defaultLiquidViscosity

double defaultLiquidViscosity

designLimitData

DesignLimitData designLimitData

designStandard

Hashtable<String, DesignStandard> designStandard

hasSetCompanySpecificDesignStandards

boolean hasSetCompanySpecificDesignStandards

innerDiameter

double innerDiameter

jointEfficiency

double jointEfficiency

lastMarginResult

MechanicalDesignMarginResult lastMarginResult

materialPipeDesignStandard

MaterialPipeDesignStandard materialPipeDesignStandard

materialPlateDesignStandard

MaterialPlateDesignStandard materialPlateDesignStandard

maxDesignCv

double maxDesignCv

Maximum design Cv for valves.

maxDesignDuty

double maxDesignDuty

maxDesignGassVolumeFlow

double maxDesignGassVolumeFlow

maxDesignOilVolumeFlow

double maxDesignOilVolumeFlow

maxDesignPower

double maxDesignPower

maxDesignPressureDrop

double maxDesignPressureDrop

Maximum design pressure drop in bara.

maxDesignVelocity

double maxDesignVelocity

Maximum design velocity in m/s for pipes.

maxDesignVolumeFlow

double maxDesignVolumeFlow

maxDesignWaterVolumeFlow

double maxDesignWaterVolumeFlow

maxOperationPressure

double maxOperationPressure

maxOperationTemperature

double maxOperationTemperature

minDesignDuty

double minDesignDuty

minDesignGassVolumeFLow

double minDesignGassVolumeFLow

minDesignOilFLow

double minDesignOilFLow

minDesignPower

double minDesignPower

minDesignVolumeFLow

double minDesignVolumeFLow

minDesignWaterVolumeFLow

double minDesignWaterVolumeFLow

minOperationPressure

double minOperationPressure

minOperationTemperature

double minOperationTemperature

moduleHeight

double moduleHeight

moduleLength

double moduleLength

moduleWidth

double moduleWidth

outerDiameter

double outerDiameter

pressureMarginFactor

double pressureMarginFactor

processEquipment

ProcessEquipmentInterface processEquipment

tantanLength

double tantanLength

tensileStrength

double tensileStrength

volumeTotal

double volumeTotal

wallThickness

double wallThickness

Wall thickness in mm.

weightElectroInstrument

double weightElectroInstrument

weightNozzle

double weightNozzle

weightPiping

double weightPiping

weightStructualSteel

double weightStructualSteel

weightTotal

double weightTotal

weightVessel

double weightVessel

weigthInternals

double weigthInternals

weigthVesselShell

double weigthVesselShell

Class neqsim.process.mechanicaldesign.MechanicalDesignMarginResult

class MechanicalDesignMarginResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

corrosionAllowanceMargin

double corrosionAllowanceMargin

jointEfficiencyMargin

double jointEfficiencyMargin

maxPressureMargin

double maxPressureMargin

maxTemperatureMargin

double maxTemperatureMargin

minPressureMargin

double minPressureMargin

minTemperatureMargin

double minTemperatureMargin

Class neqsim.process.mechanicaldesign.MechanicalDesignReport

class MechanicalDesignReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

pipingDesign

ProcessInterconnectionDesign pipingDesign

processSystem

ProcessSystem processSystem

systemDesign

SystemMechanicalDesign systemDesign

Class neqsim.process.mechanicaldesign.MechanicalDesignResponse

class MechanicalDesignResponse extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

corrosionAllowance

double corrosionAllowance

Corrosion allowance in mm.

countByType

Map<String,Integer> countByType

Count breakdown by equipment type.

designStandard

String designStandard

Design standard used (e.g., "API 610", "ASME VIII").

duty

double duty

Heating/Cooling duty in kW (positive = heating, negative = cooling).

eiWeight

double eiWeight

Electrical and instrumentation weight in kg.

equipmentClass

String equipmentClass

Equipment class name.

equipmentCount

int equipmentCount

Total equipment count.

equipmentList

List<MechanicalDesignResponse.EquipmentSummary> equipmentList

Equipment list with summaries.

equipmentType

String equipmentType

Equipment type (e.g., "Separator", "Compressor", "Valve").

footprintLength

double footprintLength

Footprint length in m.

footprintWidth

double footprintWidth

Footprint width in m.

headMaterial

String headMaterial

Head material.

innerDiameter

double innerDiameter

Inner diameter in meters.

internalsWeight

double internalsWeight

Internals weight in kg.

isSystemLevel

boolean isSystemLevel

Flag indicating if this is a system-level response.

maxDesignPressure

double maxDesignPressure

Maximum design pressure in bara.

maxDesignTemperature

double maxDesignTemperature

Maximum design temperature in °C.

maxHeight

double maxHeight

Maximum height in m.

maxOperatingPressure

double maxOperatingPressure

Maximum operating pressure in bara.

maxOperatingTemperature

double maxOperatingTemperature

Maximum operating temperature in °C.

minDesignPressure

double minDesignPressure

Minimum design pressure in bara.

minDesignTemperature

double minDesignTemperature

Minimum design temperature in °C.

moduleHeight

double moduleHeight

Module height in meters.

moduleLength

double moduleLength

Module length (plot space) in meters.

moduleWidth

double moduleWidth

Module width (plot space) in meters.

name

String name

Equipment name.

netPower

double netPower

Net power requirement in kW.

nozzlesWeight

double nozzlesWeight

Nozzles weight in kg.

operatingWeight

double operatingWeight

Operating weight (with contents) in kg.

outerDiameter

double outerDiameter

Outer diameter in meters.

pipingWeight

double pipingWeight

Piping weight in kg.

power

double power

Power requirement in kW (positive = consumed, negative = produced).

processName

String processName

Process/system name.

shellMaterial

String shellMaterial

Shell material.

specificParameters

Map<String,Object> specificParameters

Equipment-specific design parameters.

structuralWeight

double structuralWeight

Structural steel weight in kg.

tangentLength

double tangentLength

Tangent-to-tangent length in meters.

totalCoolingDuty

double totalCoolingDuty

Total cooling duty in kW.

totalHeatingDuty

double totalHeatingDuty

Total heating duty in kW.

totalPlotSpace

double totalPlotSpace

Total plot space in m2.

totalPowerRecovered

double totalPowerRecovered

Total power recovered in kW.

totalPowerRequired

double totalPowerRequired

Total power required in kW.

totalVolume

double totalVolume

Total volume in m3.

totalWeight

double totalWeight

Total weight in kg.

vesselWeight

double vesselWeight

Vessel shell weight in kg.

wallThickness

double wallThickness

Wall thickness in mm.

weightByDiscipline

Map<String,Double> weightByDiscipline

Weight breakdown by discipline.

weightByType

Map<String,Double> weightByType

Weight breakdown by equipment type.

Class neqsim.process.mechanicaldesign.MechanicalDesignResponse.EquipmentSummary

class EquipmentSummary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

designPressure

double designPressure

designTemperature

double designTemperature

dimensions

String dimensions

duty

double duty

name

String name

power

double power

type

String type

weight

double weight

Class neqsim.process.mechanicaldesign.ProcessInterconnectionDesign

class ProcessInterconnectionDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fittingWeight

double fittingWeight

Estimated fitting weight [kg].

flangeWeight

double flangeWeight

Estimated flange weight [kg].

lengthBySize

Map<String,Double> lengthBySize

Length by pipe size.

pipeSegments

List<ProcessInterconnectionDesign.PipeSegment> pipeSegments

List of pipe segments.

processSystem

ProcessSystem processSystem

totalElbowCount

int totalElbowCount

Total number of elbows.

totalFlangeCount

int totalFlangeCount

Total number of flanges.

totalPipingLength

double totalPipingLength

Total piping length [m].

totalPipingWeight

double totalPipingWeight

Total piping weight [kg].

totalTeeCount

int totalTeeCount

Total number of tees.

totalValveCount

int totalValveCount

Total number of valves.

valveWeight

double valveWeight

Estimated valve weight [kg].

weightBySize

Map<String,Double> weightBySize

Weight by pipe size.

Class neqsim.process.mechanicaldesign.ProcessInterconnectionDesign.PipeSegment

class PipeSegment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

designPressureBara

double designPressureBara

designTemperatureC

double designTemperatureC

fromEquipment

String fromEquipment

isGasService

boolean isGasService

lengthM

double lengthM

material

String material

nominalSizeInch

double nominalSizeInch

outsideDiameterMm

double outsideDiameterMm

schedule

String schedule

streamName

String streamName

toEquipment

String toEquipment

wallThicknessMm

double wallThicknessMm

weightKg

double weightKg

Class neqsim.process.mechanicaldesign.SparePartsInventory

class SparePartsInventory extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

entries

List<SparePartsInventory.SparePartEntry> entries

Generated spare parts list.

processSystem

ProcessSystem processSystem

The process system to analyze.

Class neqsim.process.mechanicaldesign.SparePartsInventory.SparePartEntry

class SparePartEntry extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

criticality

String criticality

equipmentName

String equipmentName

equipmentType

String equipmentType

leadTimeWeeks

int leadTimeWeeks

partName

String partName

quantity

int quantity

Class neqsim.process.mechanicaldesign.SystemMechanicalDesign

class SystemMechanicalDesign extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

equipmentCountByType

Map<String,Integer> equipmentCountByType

Equipment count by type.

equipmentList

List<SystemMechanicalDesign.EquipmentDesignSummary> equipmentList

Equipment list with design data.

maxEquipmentHeight

double maxEquipmentHeight

Maximum equipment height [m].

numberOfModules

int numberOfModules

processSystem

ProcessSystem processSystem

totalCoolingDuty

double totalCoolingDuty

Total cooling duty (coolers) [kW].

totalFootprintLength

double totalFootprintLength

Total footprint length [m].

totalFootprintWidth

double totalFootprintWidth

Total footprint width [m].

totalHeatingDuty

double totalHeatingDuty

Total heating duty (heaters) [kW].

totalPlotSpace

double totalPlotSpace

totalPowerRecovered

double totalPowerRecovered

Total power recovered (expanders) [kW].

totalPowerRequired

double totalPowerRequired

Total power required (compressors, pumps) [kW].

totalVolume

double totalVolume

totalWeight

double totalWeight

weightByDiscipline

Map<String,Double> weightByDiscipline

Weight breakdown by discipline (Mechanical, Piping, E and I, Structural).

weightByEquipmentType

Map<String,Double> weightByEquipmentType

Weight breakdown by equipment type (e.g., "Separator", "Compressor", "Valve").

Class neqsim.process.mechanicaldesign.SystemMechanicalDesign.EquipmentDesignSummary

class EquipmentDesignSummary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

designPressure

double designPressure

designTemperature

double designTemperature

dimensions

String dimensions

duty

double duty

height

double height

length

double length

name

String name

power

double power

type

String type

weight

double weight

width

double width

Class neqsim.process.mechanicaldesign.ThermalUtilitySummary

class ThermalUtilitySummary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

consumers

List<ThermalUtilitySummary.UtilityConsumer> consumers

coolingWaterFlowM3hr

double coolingWaterFlowM3hr

cwReturnTempC

double cwReturnTempC

Cooling water return temperature in Celsius.

cwSupplyTempC

double cwSupplyTempC

Cooling water supply temperature in Celsius.

equipmentCount

int equipmentCount

hpSteamFlowKghr

double hpSteamFlowKghr

instrumentAirNm3hr

double instrumentAirNm3hr

lpSteamFlowKghr

double lpSteamFlowKghr

mpSteamFlowKghr

double mpSteamFlowKghr

processSystem

ProcessSystem processSystem

The process system to analyse.

totalCoolingDutyKW

double totalCoolingDutyKW

totalHeatingDutyKW

double totalHeatingDutyKW

Class neqsim.process.mechanicaldesign.ThermalUtilitySummary.UtilityConsumer

class UtilityConsumer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dutyKW

double dutyKW

equipmentName

String equipmentName

flow

double flow

flowUnit

String flowUnit

utilityType

String utilityType

Package neqsim.process.mechanicaldesign.absorber

Class neqsim.process.mechanicaldesign.absorber.AbsorberMechanicalDesign

class AbsorberMechanicalDesign extends SeparatorMechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasLoadFactor

double gasLoadFactor

Gas load factor for sizing calculations.

outerDiameter

double outerDiameter

Outer diameter of the absorber.

volumeSafetyFactor

double volumeSafetyFactor

Volume safety factor for design margin.

wallThickness

double wallThickness

Wall thickness in mm.

Package neqsim.process.mechanicaldesign.adsorber

Class neqsim.process.mechanicaldesign.adsorber.AdsorberMechanicalDesign

class AdsorberMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

molecularSieveWaterCapacity

double molecularSieveWaterCapacity

outerDiameter

double outerDiameter

wallThickness

double wallThickness

Wall thickness in mm.

Class neqsim.process.mechanicaldesign.adsorber.MercuryRemovalMechanicalDesign

class MercuryRemovalMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1002L

Serialized Fields

designStandardCode

String designStandardCode

Design standard code.

internalsWeight

double internalsWeight

Weight of internal support grids, screens, and distribution plates (kg).

materialGrade

String materialGrade

Material grade for the pressure vessel.

outerDiameter

double outerDiameter

Outer diameter in m.

sorbentChargeWeight

double sorbentChargeWeight

Weight of the sorbent charge (kg).

wallThickness

double wallThickness

Wall thickness in mm.

Package neqsim.process.mechanicaldesign.compressor

Class neqsim.process.mechanicaldesign.compressor.CompressorCasingDesignCalculator

class CompressorCasingDesignCalculator extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

allowableStressMPa

double allowableStressMPa

Allowable stress at design temperature [MPa].

ambientTemperatureC

double ambientTemperatureC

Ambient temperature [C].

appliedStandards

List<String> appliedStandards

List of applied standards.

barrelEndCoverBoltCount

int barrelEndCoverBoltCount

Barrel end-cover bolt count.

barrelEndCoverBoltDiameterMm

double barrelEndCoverBoltDiameterMm

Barrel end-cover bolt diameter [mm].

barrelEndCoverThicknessMm

double barrelEndCoverThicknessMm

Barrel end-cover thickness [mm].

barrelInnerBundleODMm

double barrelInnerBundleODMm

Barrel inner bundle outer diameter [mm].

barrelOuterIDMm

double barrelOuterIDMm

Barrel outer shell inner diameter [mm].

barrelOuterODMm

double barrelOuterODMm

Barrel outer shell outer diameter [mm].

barrelOuterWallThicknessMm

double barrelOuterWallThicknessMm

Barrel outer shell wall thickness [mm].

boltAllowableStressMPa

double boltAllowableStressMPa

Bolt allowable stress [MPa].

boltPreloadForceN

double boltPreloadForceN

Bolt preload force per bolt [N].

boltTensileStressMPa

double boltTensileStressMPa

Bolt tensile stress [MPa].

casingAxialGrowthMm

double casingAxialGrowthMm

Casing axial thermal growth [mm].

casingInnerDiameterMm

double casingInnerDiameterMm

Casing inner diameter [mm].

casingLengthMm

double casingLengthMm

Casing length (bearing span based) [mm].

casingRadialGrowthMm

double casingRadialGrowthMm

Casing radial thermal growth [mm].

casingType

CompressorMechanicalDesign.CasingType casingType

Casing type.

corrosionAllowanceMm

double corrosionAllowanceMm

Corrosion allowance [mm].

designIssues

List<String> designIssues

List of design issues/warnings.

designPressureMPa

double designPressureMPa

Design pressure [MPa].

designTemperatureC

double designTemperatureC

Design temperature [C].

differentialExpansionMm

double differentialExpansionMm

Differential expansion (casing - rotor) [mm].

dischargeNozzleAllowableForceN

double dischargeNozzleAllowableForceN

Allowable discharge nozzle force [N].

dischargeNozzleAllowableMomentNm

double dischargeNozzleAllowableMomentNm

Allowable discharge nozzle moment [Nm].

dischargeNozzleSizeMm

double dischargeNozzleSizeMm

Discharge nozzle size [mm NPS].

elasticModulusGPa

double elasticModulusGPa

Elastic modulus [GPa].

flangeClass

int flangeClass

Selected flange class per ASME B16.5.

flangeRatingAdequate

boolean flangeRatingAdequate

Whether flange rating is adequate.

flangeRatingBarg

double flangeRatingBarg

Flange class pressure rating [barg].

flangeStandard

String flangeStandard

Flange standard used (B16.5 or B16.47).

h2sPartialPressureKPa

double h2sPartialPressureKPa

Maximum H2S partial pressure [kPa].

hoopStressMPa

double hoopStressMPa

Hoop stress at design conditions [MPa].

hydroTestAcceptable

boolean hydroTestAcceptable

Whether hydro test stress is acceptable.

hydroTestFactor

double hydroTestFactor

Hydrostatic test factor per ASME VIII UG-99.

hydroTestPressureMPa

double hydroTestPressureMPa

Hydrostatic test pressure [MPa].

hydroTestStressMPa

double hydroTestStressMPa

Stress during hydro test [MPa].

impellerDiameterMm

double impellerDiameterMm

Impeller diameter [mm].

jointEfficiency

double jointEfficiency

Weld joint efficiency per ASME VIII UW-12.

materialDensity

double materialDensity

Material density [kg/m3].

materialGrade

String materialGrade

Material grade for casing.

materialIsNaceCompliant

boolean materialIsNaceCompliant

Whether material is NACE compliant.

materialType

String materialType

Material type description.

mawpMPa

double mawpMPa

Maximum Allowable Working Pressure [MPa].

maxOperatingPressureMPa

double maxOperatingPressureMPa

Maximum operating pressure [MPa].

maxOperatingTemperatureC

double maxOperatingTemperatureC

Maximum operating temperature [C].

minimumWallThicknessMm

double minimumWallThicknessMm

Minimum wall thickness including corrosion allowance [mm].

minOperatingTemperatureC

double minOperatingTemperatureC

Minimum operating temperature [C].

naceComplianceStatus

String naceComplianceStatus

NACE compliance result: COMPLIANT, NON_COMPLIANT, NOT_APPLICABLE.

naceIssues

List<String> naceIssues

List of NACE compliance issues.

naceMaxHardnessHRC

double naceMaxHardnessHRC

Maximum hardness allowed [HRC] per NACE.

naceRegion

String naceRegion

NACE sour service region classification.

nozzleLoadFactor

double nozzleLoadFactor

Nozzle load amplification factor per API 617.

numberOfStages

int numberOfStages

Number of impeller stages in casing.

operatingSpeedRPM

double operatingSpeedRPM

Operating speed [rpm].

requiredWallThicknessMm

double requiredWallThicknessMm

Required wall thickness per ASME VIII UG-27 [mm] (before corrosion).

rotorAxialGrowthMm

double rotorAxialGrowthMm

Rotor axial thermal growth [mm].

selectedWallThicknessMm

double selectedWallThicknessMm

Selected (nominal) wall thickness [mm].

shaftPowerKW

double shaftPowerKW

Shaft power [kW] - for nozzle load estimation.

smtsMPa

double smtsMPa

Specified Minimum Tensile Strength [MPa].

smysMPa

double smysMPa

Specified Minimum Yield Strength [MPa].

sourService

boolean sourService

Whether H2S sour service (NACE MR0175).

splitLineBoltCount

int splitLineBoltCount

Required number of split-line bolts.

splitLineBoltDiameterMm

double splitLineBoltDiameterMm

Split-line bolt diameter [mm].

splitLineBoltPitchMm

double splitLineBoltPitchMm

Split-line bolt pitch [mm].

splitLineBoltsAdequate

boolean splitLineBoltsAdequate

Whether split-line bolt design is adequate.

stressRatio

double stressRatio

Stress ratio (actual/allowable).

suctionNozzleAllowableForceN

double suctionNozzleAllowableForceN

Allowable suction nozzle force [N].

suctionNozzleAllowableMomentNm

double suctionNozzleAllowableMomentNm

Allowable suction nozzle moment [Nm].

suctionNozzleSizeMm

double suctionNozzleSizeMm

Suction nozzle size [mm NPS].

thermalExpansionCoeff

double thermalExpansionCoeff

Coefficient of thermal expansion [1/C].

thermalGrowthAcceptable

boolean thermalGrowthAcceptable

Whether differential expansion is acceptable.

totalGasketLoadN

double totalGasketLoadN

Total gasket load [N].

Class neqsim.process.mechanicaldesign.compressor.CompressorMechanicalDesign

class CompressorMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

antiSurgeResponseTimeSec

double antiSurgeResponseTimeSec

Anti-surge control response time requirement [seconds].

bearingSpan

double bearingSpan

Bearing span [mm].

bearingType

String bearingType

Bearing type.

bundleWeight

double bundleWeight

Bundle (rotor + internals) weight [kg].

casingCorrosionAllowanceMm

double casingCorrosionAllowanceMm

Corrosion allowance for casing [mm].

casingDesignCalculator

CompressorCasingDesignCalculator casingDesignCalculator

Casing design calculator per API 617 / ASME VIII.

casingMaterialGrade

String casingMaterialGrade

Material grade for casing design.

casingType

CompressorMechanicalDesign.CasingType casingType

Casing type.

casingWeight

double casingWeight

Casing weight [kg].

compressorFactor

double compressorFactor

Compressor design factor from design standard.

criticalSpeedMarginPercent

double criticalSpeedMarginPercent

Separation margin from first critical speed [%].

designFlowMargin

double designFlowMargin

Design flow margin factor.

designPressure

double designPressure

Design pressure [bara].

designTemperature

double designTemperature

Design temperature [C].

driverMargin

double driverMargin

Driver power margin factor.

driverPower

double driverPower

Required driver power [kW].

firstCriticalSpeed

double firstCriticalSpeed

First lateral critical speed [rpm].

flowMarginFactor

double flowMarginFactor

Design flow margin factor.

h2sPartialPressureKPa

double h2sPartialPressureKPa

H2S partial pressure for NACE assessment [kPa].

headPerStage

double headPerStage

Polytropic head per stage [kJ/kg].

impellerDiameter

double impellerDiameter

Impeller outer diameter [mm].

materialClass

String materialClass

Material class.

maxBearingVibrationMmS

double maxBearingVibrationMmS

Vibration limit at bearing [mm/s RMS].

maxContinuousSpeed

double maxContinuousSpeed

Maximum continuous speed [rpm].

maxDischargeTemperatureC

double maxDischargeTemperatureC

Maximum discharge temperature [C].

maxPressureRatioPerStage

double maxPressureRatioPerStage

Maximum pressure ratio per stage.

maxSpeedPercent

double maxSpeedPercent

Speed range requirement - maximum [% of rated].

maxStagesPerCasing

int maxStagesPerCasing

Maximum number of stages per casing.

maxSuctionStrainerDPBar

double maxSuctionStrainerDPBar

Maximum allowable suction strainer pressure drop [bar].

maxVibrationMmPerSec

double maxVibrationMmPerSec

Maximum allowable vibration [mm/s RMS].

mechanicalLosses

CompressorMechanicalLosses mechanicalLosses

Mechanical losses model reference.

minPolytropicEfficiency

double minPolytropicEfficiency

Minimum polytropic efficiency [%].

minSealGasDifferentialPressureBar

double minSealGasDifferentialPressureBar

Minimum seal gas differential pressure [bar].

minSpeedPercent

double minSpeedPercent

Speed range requirement - minimum [% of rated].

minTurndownPercent

double minTurndownPercent

Minimum turndown requirement [%].

naceCompliance

boolean naceCompliance

NACE MR0175 compliance required.

numberOfStages

int numberOfStages

Number of compression stages.

recycleValveMarginPercent

double recycleValveMarginPercent

Recycle valve capacity margin [%].

rotorWeight

double rotorWeight

Rotor weight [kg].

sealGasConsumptionPercent

double sealGasConsumptionPercent

Seal gas consumption allowance [% of design flow].

sealType

String sealType

Seal type.

shaftDiameter

double shaftDiameter

Shaft diameter at impeller [mm].

stonewallFlowM3hr

double stonewallFlowM3hr

Calculated stonewall flow rate [m3/hr].

stonewallMarginPercent

double stonewallMarginPercent

Stonewall margin minimum requirement [%].

suctionPressureMargin

double suctionPressureMargin

Design suction pressure margin [bara].

surgeFlowM3hr

double surgeFlowM3hr

Calculated surge flow rate [m3/hr].

surgeMarginPercent

double surgeMarginPercent

Surge margin minimum requirement [%].

targetPolytropicEfficiency

double targetPolytropicEfficiency

Target polytropic efficiency [%].

tipSpeed

double tipSpeed

Impeller tip speed [m/s].

tripSpeed

double tripSpeed

Trip speed (typically 105% of max continuous) [rpm].

turndownFlowM3hr

double turndownFlowM3hr

Calculated turndown flow rate [m3/hr].

Class neqsim.process.mechanicaldesign.compressor.CompressorMechanicalDesignResponse

class CompressorMechanicalDesignResponse extends MechanicalDesignResponse implements Serializable

serialVersionUID:

1001L

Serialized Fields

bearingSpan

double bearingSpan

Bearing span [mm].

bearingType

String bearingType

Bearing type (tilting pad, plain, magnetic).

bundleWeight

double bundleWeight

Bundle weight [kg].

casingDesign

Map<String,Object> casingDesign

Casing design results from CompressorCasingDesignCalculator.

casingType

String casingType

Casing type (horizontal split, barrel, vertical split).

casingWeight

double casingWeight

Casing weight [kg].

compressorType

String compressorType

Compressor type (centrifugal, reciprocating, screw, axial).

driverMargin

double driverMargin

Driver power margin factor.

driverPower

double driverPower

Required driver power [kW].

firstCriticalSpeed

double firstCriticalSpeed

First lateral critical speed [rpm].

headPerStage

double headPerStage

Polytropic head per stage [kJ/kg].

impellerDiameter

double impellerDiameter

Impeller diameter [mm].

inletPressure

double inletPressure

Inlet pressure [bara].

isentropicEfficiency

double isentropicEfficiency

Isentropic efficiency.

maxContinuousSpeed

double maxContinuousSpeed

Maximum continuous speed [rpm].

maxDischargeTemperature

double maxDischargeTemperature

Maximum discharge temperature [°C].

maxPressureRatioPerStage

double maxPressureRatioPerStage

Maximum pressure ratio per stage.

maxVibrationUnfiltered

double maxVibrationUnfiltered

Maximum unfiltered vibration [mm/s].

minTurndownPercent

double minTurndownPercent

Minimum turndown percentage.

naceCompliance

boolean naceCompliance

NACE compliance required flag.

numberOfStages

int numberOfStages

Number of compression stages.

outletPressure

double outletPressure

Outlet pressure [bara].

polytropicEfficiency

double polytropicEfficiency

Polytropic efficiency.

pressureRatio

double pressureRatio

Pressure ratio.

rotorWeight

double rotorWeight

Rotor weight [kg].

sealType

String sealType

Seal type (dry gas, oil film, labyrinth).

shaftDiameter

double shaftDiameter

Shaft diameter [mm].

stonewallMarginPercent

double stonewallMarginPercent

Stonewall margin percentage.

surgeMarginPercent

double surgeMarginPercent

Surge margin percentage.

targetPolytropicEfficiency

double targetPolytropicEfficiency

Target polytropic efficiency.

tipSpeed

double tipSpeed

Impeller tip speed [m/s].

totalHead

double totalHead

Total polytropic head [kJ/kg].

tripSpeed

double tripSpeed

Trip speed [rpm].

Package neqsim.process.mechanicaldesign.designstandards

Class neqsim.process.mechanicaldesign.designstandards.AbsorptionColumnDesignStandard

class AbsorptionColumnDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

molecularSieveWaterCapacity

double molecularSieveWaterCapacity

Class neqsim.process.mechanicaldesign.designstandards.AdsorptionDehydrationDesignStandard

class AdsorptionDehydrationDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

molecularSieveWaterCapacity

double molecularSieveWaterCapacity

Class neqsim.process.mechanicaldesign.designstandards.CompressorDesignStandard

class CompressorDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressorFactor

double compressorFactor

Class neqsim.process.mechanicaldesign.designstandards.CUIRiskAssessment

class CUIRiskAssessment extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.DesignStandard

class DesignStandard extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipment

MechanicalDesign equipment

standardName

String standardName

Class neqsim.process.mechanicaldesign.designstandards.FireProtectionDesign

class FireProtectionDesign extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.FireProtectionDesign.FireScenarioResult

class FireScenarioResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bleveFireballDiameterM

double bleveFireballDiameterM

BLEVE fireball diameter in meters.

bleveFireballDurationS

double bleveFireballDurationS

BLEVE fireball duration in seconds.

bleveOverpressureAt50mKPa

double bleveOverpressureAt50mKPa

BLEVE overpressure at 50 m distance in kPa.

equipmentName

String equipmentName

Equipment name.

jetFireFlameLengthM

double jetFireFlameLengthM

Jet fire flame length in meters.

jetFireSafeDistanceM

double jetFireSafeDistanceM

Jet fire safe distance to 4.7 kW/m2 threshold in meters.

poolFireHeatReleaseKW

double poolFireHeatReleaseKW

Pool fire heat release rate in kW.

poolFireSafeDistanceM

double poolFireSafeDistanceM

Pool fire safe distance to 4.7 kW/m2 escape threshold in meters.

Class neqsim.process.mechanicaldesign.designstandards.GasScrubberDesignStandard

class GasScrubberDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

designFactorVolumeFlow

double designFactorVolumeFlow

gasLoadFactor

double gasLoadFactor

lengthGasInetToHHLL

double lengthGasInetToHHLL

lengthGasInletToMeshpad

double lengthGasInletToMeshpad

lengthMeshPadToDemistingCyclone

double lengthMeshPadToDemistingCyclone

Class neqsim.process.mechanicaldesign.designstandards.InsulationDesign

class InsulationDesign extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.JointEfficiencyPipelineStandard

class JointEfficiencyPipelineStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

JEFactor

double JEFactor

radiagraphType

String radiagraphType

typeName

String typeName

Class neqsim.process.mechanicaldesign.designstandards.JointEfficiencyPlateStandard

class JointEfficiencyPlateStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

JEFactor

double JEFactor

radiagraphType

String radiagraphType

typeName

String typeName

Class neqsim.process.mechanicaldesign.designstandards.MaterialPipeDesignStandard

class MaterialPipeDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

designFactor

double designFactor

Efactor

double Efactor

grade

String grade

minimumYeildStrength

double minimumYeildStrength

specificationNumber

String specificationNumber

specName

String specName

temperatureDeratingFactor

double temperatureDeratingFactor

Class neqsim.process.mechanicaldesign.designstandards.MaterialPlateDesignStandard

class MaterialPlateDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

divisionClass

double divisionClass

divisionClassNumber

int divisionClassNumber

grade

String grade

materialName

String materialName

specificationNumber

String specificationNumber

Class neqsim.process.mechanicaldesign.designstandards.NoiseAssessment

class NoiseAssessment extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.PipelineDesignStandard

class PipelineDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

safetyFactor

double safetyFactor

safetyMargins

MechanicalDesignMarginResult safetyMargins

Class neqsim.process.mechanicaldesign.designstandards.PipingDesignStandard

class PipingDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.PipingStressAnalysis

class PipingStressAnalysis extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.designstandards.PressureVesselDesignStandard

class PressureVesselDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

safetyMargins

MechanicalDesignMarginResult safetyMargins

Class neqsim.process.mechanicaldesign.designstandards.ProcessDesignStandard

class ProcessDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

areaMargin

double areaMargin

Area margin for heat transfer equipment.

designPressureMargin

double designPressureMargin

Design pressure margin factor.

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin in Celsius.

dutyMargin

double dutyMargin

Duty margin for heat transfer equipment.

equipmentType

String equipmentType

Equipment type this standard applies to.

flowSafetyFactor

double flowSafetyFactor

Flow safety factor for volumetric design.

minDesignTemperatureC

double minDesignTemperatureC

Minimum design temperature in Celsius.

Class neqsim.process.mechanicaldesign.designstandards.SeparatorDesignStandard

class SeparatorDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

Fg

double Fg

gasLoadFactor

double gasLoadFactor

safetyMargins

MechanicalDesignMarginResult safetyMargins

volumetricDesignFactor

double volumetricDesignFactor

Class neqsim.process.mechanicaldesign.designstandards.ValveDesignStandard

class ValveDesignStandard extends DesignStandard implements Serializable

serialVersionUID:

1000L

Serialized Fields

valveCvMax

double valveCvMax

Class neqsim.process.mechanicaldesign.designstandards.VibrationAssessment

class VibrationAssessment extends Object implements Serializable

serialVersionUID:

1000L

Package neqsim.process.mechanicaldesign.distillation

Class neqsim.process.mechanicaldesign.distillation.DistillationColumnMechanicalDesign

class DistillationColumnMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeAreaFraction

double activeAreaFraction

Active area fraction.

actualTrays

int actualTrays

Actual number of trays (accounting for efficiency).

columnDiameter

double columnDiameter

Column internal diameter [m].

columnHeight

double columnHeight

Column tangent-to-tangent height [m].

columnWallThickness

double columnWallThickness

Column wall thickness [mm].

condenserDuty

double condenserDuty

Condenser duty [kW].

designStandardCode

String designStandardCode

Design standard code.

downcomberAreaFraction

double downcomberAreaFraction

Downcomer area fraction.

floodingFactor

double floodingFactor

Flooding factor (0-1, design typically 0.80-0.85).

holeAreaFraction

double holeAreaFraction

Hole area fraction (for sieve trays).

holeDiameter

double holeDiameter

Hole diameter [mm] (for sieve trays).

materialGrade

String materialGrade

Material grade for column shell.

maxFloodingFactor

double maxFloodingFactor

Maximum flooding factor allowed.

maxWeirLoading

double maxWeirLoading

Maximum weir loading [m3/hr per m].

numberOfTrays

int numberOfTrays

Number of theoretical trays.

reboilerDuty

double reboilerDuty

Reboiler duty [kW].

totalPressureDrop

double totalPressureDrop

Total column pressure drop [bar].

trayEfficiency

double trayEfficiency

Overall tray efficiency.

trayMaterial

String trayMaterial

Tray material.

trayPressureDrop

double trayPressureDrop

Tray pressure drop [mbar/tray].

traySpacing

double traySpacing

Tray spacing [m].

trayType

String trayType

Tray type (sieve, valve, bubble-cap).

weirHeight

double weirHeight

Weir height [m].

weirLength

double weirLength

Weir length [m].

weirLoading

double weirLoading

Weir liquid loading [m3/hr per m of weir].

Package neqsim.process.mechanicaldesign.ejector

Class neqsim.process.mechanicaldesign.ejector.EjectorMechanicalDesign

class EjectorMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1L

Serialized Fields

bodyVolume

double bodyVolume

connectedPipingVolume

double connectedPipingVolume

diffuserOutletArea

double diffuserOutletArea

diffuserOutletLength

double diffuserOutletLength

diffuserOutletVelocity

double diffuserOutletVelocity

dischargeConnectionLength

double dischargeConnectionLength

entrainmentRatio

double entrainmentRatio

mixingChamberArea

double mixingChamberArea

mixingChamberLength

double mixingChamberLength

mixingChamberVelocity

double mixingChamberVelocity

mixingPressure

double mixingPressure

motiveNozzleEffectiveLength

double motiveNozzleEffectiveLength

motiveNozzleExitVelocity

double motiveNozzleExitVelocity

motiveNozzleThroatArea

double motiveNozzleThroatArea

suctionConnectionLength

double suctionConnectionLength

suctionInletArea

double suctionInletArea

suctionInletLength

double suctionInletLength

suctionInletVelocity

double suctionInletVelocity

Package neqsim.process.mechanicaldesign.electrolyzer

Class neqsim.process.mechanicaldesign.electrolyzer.ElectrolyzerMechanicalDesign

class ElectrolyzerMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

cellActiveArea

double cellActiveArea

Cell active area in cm2 per cell.

cellsPerStack

int cellsPerStack

Number of cells per stack.

cellVoltage

double cellVoltage

Cell voltage in V.

currentDensity

double currentDensity

Current density in A/cm2.

designPressure

double designPressure

Design pressure in bara.

electrolyzerType

String electrolyzerType

Electrolyzer type: "PEM" or "ALKALINE".

h2ProductionRateKgHr

double h2ProductionRateKgHr

Hydrogen production rate in kg/hr.

moduleFootprintM2

double moduleFootprintM2

Module footprint in m2.

numberOfStacks

int numberOfStacks

Number of stacks.

specificEnergyKWhPerKg

double specificEnergyKWhPerKg

Specific energy consumption in kWh/kgH2.

stackEfficiency

double stackEfficiency

Stack efficiency (HHV basis).

stackPressure

double stackPressure

Stack operating pressure in bara.

stackTemperatureC

double stackTemperatureC

Stack operating temperature in Celsius.

stackWeightKg

double stackWeightKg

Estimated stack weight in kg.

totalMembraneArea

double totalMembraneArea

Total membrane area in m2.

totalPowerKW

double totalPowerKW

Total power consumption in kW.

totalSystemWeightKg

double totalSystemWeightKg

Estimated total system weight in kg (including BOP).

waterConsumptionKgHr

double waterConsumptionKgHr

Water consumption in kg/hr.

Package neqsim.process.mechanicaldesign.expander

Class neqsim.process.mechanicaldesign.expander.ExpanderMechanicalDesign

class ExpanderMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

bearingSpan

double bearingSpan

Bearing span [mm].

bearingType

String bearingType

Bearing type.

casingDesignPressure

double casingDesignPressure

Casing design pressure [bara].

casingDesignTemperature

double casingDesignTemperature

Casing design temperature [°C].

casingWallThickness

double casingWallThickness

Casing wall thickness [mm].

casingWeight

double casingWeight

Casing weight [kg].

designInletPressure

double designInletPressure

Design inlet pressure [bara].

designInletTemperature

double designInletTemperature

Design inlet temperature [°C].

designOutletPressure

double designOutletPressure

Design outlet pressure [bara].

designOutletTemperature

double designOutletTemperature

Design outlet temperature [°C].

expanderType

ExpanderMechanicalDesign.ExpanderType expanderType

Expander type.

firstCriticalSpeed

double firstCriticalSpeed

First critical speed [rpm].

generatorWeight

double generatorWeight

Generator weight [kg].

isentropicEfficiency

double isentropicEfficiency

Isentropic efficiency.

loadType

ExpanderMechanicalDesign.LoadType loadType

Load type.

maxContinuousSpeed

double maxContinuousSpeed

Maximum continuous speed [rpm].

numberOfStages

int numberOfStages

Number of stages.

ratedSpeed

double ratedSpeed

Rated speed [rpm].

recoveredPower

double recoveredPower

Recovered power [kW].

sealType

String sealType

Seal type.

shaftDiameter

double shaftDiameter

Shaft diameter [mm].

shaftWeight

double shaftWeight

Shaft weight [kg].

tipSpeed

double tipSpeed

Wheel tip speed [m/s].

tripSpeed

double tripSpeed

Trip speed [rpm].

wheelDiameter

double wheelDiameter

Wheel outer diameter [mm].

wheelWeight

double wheelWeight

Wheel weight [kg].

Package neqsim.process.mechanicaldesign.filter

Class neqsim.process.mechanicaldesign.filter.FilterMechanicalDesign

class FilterMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1002L

Serialized Fields

allowableStress

double allowableStress

Maximum allowable stress for SA-516-70 at design temperature (MPa).

corrosionAllowance

double corrosionAllowance

Corrosion allowance in metres.

designPressure

double designPressure

Design pressure in bara.

designPressureMargin

double designPressureMargin

Design pressure margin factor (1.1 = 10% above max operating).

designTemperatureC

double designTemperatureC

Design temperature in Celsius.

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating in Celsius.

elementArea

double elementArea

Filter element area per element (m2). Typical cartridge: 0.5-2.0 m2.

elementChangeHours

double elementChangeHours

Hours to change one set of filter elements.

elementCostUSD

double elementCostUSD

Cost per filter element (USD).

elementWeight

double elementWeight

Filter element set weight in kg (all elements).

emptyVesselWeight

double emptyVesselWeight

Vessel empty weight in kg.

headThickness

double headThickness

Vessel head thickness in metres.

installationFactor

double installationFactor

Installation factor (multiplier on equipment cost).

jointEfficiency

double jointEfficiency

Joint efficiency for fully radiographed welds.

labourRateUSD

double labourRateUSD

Labour rate for element change (USD/hr).

materialGrade

String materialGrade

Material grade for pressure vessel shell.

maxFaceVelocity

double maxFaceVelocity

Maximum gas face velocity through filter elements (m/s).

maxLDRatio

double maxLDRatio

Maximum vessel L/D ratio.

minLDRatio

double minLDRatio

Minimum vessel L/D ratio.

requiredElements

int requiredElements

Required number of filter elements.

shellThickness

double shellThickness

Vessel shell thickness in metres.

steelCostPerKg

double steelCostPerKg

Steel cost per kg (USD).

totalEquippedWeight

double totalEquippedWeight

Total equipped weight in kg.

vesselLength

double vesselLength

Vessel tangent-to-tangent length in metres.

Class neqsim.process.mechanicaldesign.filter.SulfurFilterMechanicalDesign

class SulfurFilterMechanicalDesign extends FilterMechanicalDesign implements Serializable

serialVersionUID:

1001L

Package neqsim.process.mechanicaldesign.flare

Class neqsim.process.mechanicaldesign.flare.FlareMechanicalDesign

class FlareMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

designHeatReleaseMW

double designHeatReleaseMW

Design heat release rate in MW.

designWindSpeed

double designWindSpeed

Wind speed for radiation calculation in m/s.

flameLength

double flameLength

Flame length in meters (computed).

flameTiltAngle

double flameTiltAngle

Flame tilt angle in radians (computed).

headerDiameter

double headerDiameter

Flare header diameter in meters.

maxBackpressureKPag

double maxBackpressureKPag

Maximum backpressure at any relief device in kPa gauge.

maxHeaderVelocity

double maxHeaderVelocity

Maximum header velocity in m/s (API 521).

maxRadiationAtGrade

double maxRadiationAtGrade

Maximum allowable radiation at grade level in kW/m2 (API 521 Table 5).

maxRadiationAtPropertyLine

double maxRadiationAtPropertyLine

Maximum allowable radiation at property line in kW/m2.

maxTipMachNumber

double maxTipMachNumber

Maximum Mach number at flare tip (API 521 recommendation).

minPurgeVelocity

double minPurgeVelocity

Minimum purge velocity in m/s to prevent flashback.

pilotGasConsumption

double pilotGasConsumption

Pilot gas consumption in Sm3/hr.

radiantFraction

double radiantFraction

Radiant fraction of total heat release.

radiationDistanceAtGrade

double radiationDistanceAtGrade

Radiation distance at max grade-level radiation (computed) in meters.

smokeSuppressingSteamRate

double smokeSuppressingSteamRate

Smoke suppression steam rate in kg/hr (0 if smokeless).

stackHeight

double stackHeight

Stack height in meters.

stackMaterial

String stackMaterial

Stack material.

stackWallThickness

double stackWallThickness

Stack wall thickness in mm (computed).

stackWeight

double stackWeight

Estimated stack weight in kg.

tipDiameter

double tipDiameter

Tip diameter in meters.

Package neqsim.process.mechanicaldesign.heatexchanger

Class neqsim.process.mechanicaldesign.heatexchanger.BAHXMechanicalDesign

class BAHXMechanicalDesign extends HeatExchangerMechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

allowableThermalGradient

double allowableThermalGradient

Maximum allowable thermal gradient in deg C/m.

coreHeightM

double coreHeightM

Core height in m.

coreLengthM

double coreLengthM

Core length in m.

coreMaterialGrade

String coreMaterialGrade

Core material grade for fins and parting sheets.

coreWeightKg

double coreWeightKg

Core weight in kg.

coreWidthM

double coreWidthM

Core width in m.

designCycles

int designCycles

Number of thermal cycles for fatigue assessment.

designLifeYears

int designLifeYears

Design life in years.

fatiguePassed

boolean fatiguePassed

Whether thermal fatigue check passes.

fatigueUtilisation

double fatigueUtilisation

Fatigue utilisation factor (0 to 1).

headerMaterialGrade

String headerMaterialGrade

Header material grade.

headerWeightKg

double headerWeightKg

Header weight in kg.

heatTransferAreaM2

double heatTransferAreaM2

BAHX heat transfer area in m2.

maxThermalGradient

double maxThermalGradient

Maximum thermal gradient found in analysis in deg C/m.

nozzleMaterialGrade

String nozzleMaterialGrade

Nozzle material grade.

nozzleODMm

double nozzleODMm

Nozzle outer diameter in mm.

nozzleWeightKg

double nozzleWeightKg

Nozzle weight in kg.

numberOfNozzles

int numberOfNozzles

Number of nozzles (inlet + outlet per stream).

requiredHeaderThicknessMm

double requiredHeaderThicknessMm

Minimum required header plate thickness in mm.

requiredNozzleThicknessMm

double requiredNozzleThicknessMm

Minimum required nozzle wall thickness in mm.

requiredPartingSheetThicknessMm

double requiredPartingSheetThicknessMm

Minimum required parting sheet thickness in mm.

Class neqsim.process.mechanicaldesign.heatexchanger.FoulingModel

class FoulingModel extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

activationEnergy

double activationEnergy

Activation energy (J/mol). Typical: 28000-68000 for crude oils.

alpha

double alpha

Deposition pre-exponential constant. Typical: 0.2-1.0 for crude oils.

beta

double beta

Reynolds number exponent. Typical: -0.66 for crude oils.

currentFoulingResistance

double currentFoulingResistance

fixedFoulingResistance

double fixedFoulingResistance

fluidDensity

double fluidDensity

fluidViscosity

double fluidViscosity

foulingRate

double foulingRate

gamma

double gamma

Removal rate constant (1/(Pa*s)). Typical: 3e-9 to 8e-9.

modelType

FoulingModel.FoulingModelType modelType

operatingTimeHours

double operatingTimeHours

reynoldsNumber

double reynoldsNumber

rfMax

double rfMax

Maximum (asymptotic) fouling resistance (m2*K/W).

timeConstant

double timeConstant

Time constant (hours).

tubeID

double tubeID

velocity

double velocity

wallShearStress

double wallShearStress

wallTemperature

double wallTemperature

Class neqsim.process.mechanicaldesign.heatexchanger.HeatExchangerMechanicalDesign

class HeatExchangerMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

approachTemperature

double approachTemperature

areaMargin

double areaMargin

Area margin factor (e.g., 1.15 for 15% excess area).

baffleCutPercent

double baffleCutPercent

Baffle cut as percentage of shell diameter (typically 20-35%).

baffleSpacingRatio

double baffleSpacingRatio

Baffle spacing as fraction of shell diameter (typically 0.2-1.0).

calculatedUA

double calculatedUA

candidateTypes

List<HeatExchangerType> candidateTypes

designPressureMargin

double designPressureMargin

Design pressure margin factor (e.g., 1.10 for 10% margin).

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating in Celsius.

dutyMargin

double dutyMargin

Design duty margin factor (e.g., 1.10 for 10% margin).

foulingResistanceShellHC

double foulingResistanceShellHC

Shell side fouling resistance for hydrocarbon service.

foulingResistanceShellWater

double foulingResistanceShellWater

Shell side fouling resistance for water service.

foulingResistanceTubeHC

double foulingResistanceTubeHC

Tube side fouling resistance for hydrocarbon service.

foulingResistanceTubeWater

double foulingResistanceTubeWater

Tube side fouling resistance for water service.

h2sPartialPressure

double h2sPartialPressure

H2S partial pressure in bar for NACE sour service determination.

logMeanTemperatureDifference

double logMeanTemperatureDifference

manualSelection

HeatExchangerType manualSelection

maxShellVelocity

double maxShellVelocity

Maximum shell side velocity.

maxTubeLengthM

double maxTubeLengthM

Maximum tube length in m.

maxTubeVelocity

double maxTubeVelocity

Maximum tube side velocity to prevent erosion.

minApproachTemperatureC

double minApproachTemperatureC

Minimum approach temperature in Celsius.

minTubeVelocity

double minTubeVelocity

Minimum tube side velocity to prevent excessive fouling.

selectionCriterion

HeatExchangerMechanicalDesign.SelectionCriterion selectionCriterion

shellJointEfficiency

double shellJointEfficiency

Shell joint efficiency per ASME VIII (0.65-1.0).

shellMaterialGrade

String shellMaterialGrade

Shell material grade for property lookup from HeatExchangerTubeMaterials table.

shellPasses

int shellPasses

Number of shell passes.

sourServiceAssessment

boolean sourServiceAssessment

Whether to perform NACE MR0175 sour service assessment.

temaClass

String temaClass

TEMA class: "R" (refinery/severe), "C" (commercial), "B" (chemical).

temaFrontHeadType

String temaFrontHeadType

TEMA front head type: "A", "B", "C", "N", "D".

temaRearHeadType

String temaRearHeadType

TEMA rear head type: "L", "M", "N", "P", "S", "T", "U", "W".

temaShellType

String temaShellType

TEMA shell type: "E", "F", "G", "H", "J", "K", "X".

tubeLayoutPattern

String tubeLayoutPattern

Tube layout pattern: "triangular", "rotated_triangular", "square", "rotated_square".

tubeMaterialGrade

String tubeMaterialGrade

Tube material grade for property lookup from HeatExchangerTubeMaterials table.

tubeOuterDiameterMm

double tubeOuterDiameterMm

Tube outer diameter in mm (standard sizes: 19.05, 25.4 mm).

tubePasses

int tubePasses

Number of tube passes.

tubePitchRatio

double tubePitchRatio

Tube pitch ratio (pitch/OD), typically 1.25-1.50.

tubeWallThicknessMm

double tubeWallThicknessMm

Tube wall thickness in mm (BWG gauge).

usedOverallHeatTransferCoefficient

double usedOverallHeatTransferCoefficient

Class neqsim.process.mechanicaldesign.heatexchanger.HeatExchangerMechanicalDesignResponse

class HeatExchangerMechanicalDesignResponse extends MechanicalDesignResponse implements Serializable

serialVersionUID:

1001L

Serialized Fields

areaMargin

double areaMargin

Area margin [%].

baffleCut

double baffleCut

Baffle cut [%].

baffleSpacing

double baffleSpacing

Baffle spacing [mm].

baffleThickness

double baffleThickness

Baffle thickness [mm].

baffleType

String baffleType

Baffle type (single segmental, double segmental, no-tubes-in-window).

bundleWeight

double bundleWeight

Bundle weight [kg].

channelWeight

double channelWeight

Channel weight [kg].

cleanOverallHeatTransferCoeff

double cleanOverallHeatTransferCoeff

Clean overall heat transfer coefficient [W/m²K].

designShellFoulingResistance

double designShellFoulingResistance

Shell-side fouling resistance (design value) [m²K/W].

designTubeFoulingResistance

double designTubeFoulingResistance

Tube-side fouling resistance (design value) [m²K/W].

fouledOverallHeatTransferCoeff

double fouledOverallHeatTransferCoeff

Fouled overall heat transfer coefficient [W/m²K].

heatDuty

double heatDuty

Heat duty [kW].

heatExchangerType

String heatExchangerType

Heat exchanger type (shell-tube, plate, air-cooled, double-pipe).

heatTransferArea

double heatTransferArea

Heat transfer area [m²].

hydroTestPressureShell

double hydroTestPressureShell

Hydro test pressure shell [bara] per ASME UG-99.

hydroTestPressureTube

double hydroTestPressureTube

Hydro test pressure tube [bara] per ASME UG-99.

lmtd

double lmtd

Log mean temperature difference [K].

lmtdCorrectionFactor

double lmtdCorrectionFactor

LMTD correction factor (F).

mawpShellSide

double mawpShellSide

MAWP shell side [bara] per ASME UG-27.

mawpTubeSide

double mawpTubeSide

MAWP tube side [bara] per ASME UG-27.

maxShellVelocity

double maxShellVelocity

Maximum shell velocity [m/s].

maxTubeLength

double maxTubeLength

Maximum tube length [m].

maxTubeVelocity

double maxTubeVelocity

Maximum tube velocity [m/s].

minApproachTemperature

double minApproachTemperature

Minimum approach temperature [°C].

numberOfBaffles

int numberOfBaffles

Number of baffles.

numberOfShellPasses

int numberOfShellPasses

Number of shell passes.

numberOfShells

int numberOfShells

Number of shells in series.

numberOfTubePasses

int numberOfTubePasses

Number of tube passes.

numberOfTubes

int numberOfTubes

Number of tubes per shell.

overallHeatTransferCoeff

double overallHeatTransferCoeff

Overall heat transfer coefficient [W/m²K].

requiredArea

double requiredArea

Required heat transfer area [m²].

shellDesignPressure

double shellDesignPressure

Shell-side design pressure [bara].

shellDesignTemperature

double shellDesignTemperature

Shell-side design temperature [°C].

shellFoulingResistance

double shellFoulingResistance

Shell-side fouling resistance [m²K/W].

shellInnerDiameter

double shellInnerDiameter

Shell inner diameter [mm].

shellMaterial

String shellMaterial

Shell material.

shellMaterialGrade

String shellMaterialGrade

Shell material grade from HeatExchangerTubeMaterials.

shellNACECompliant

boolean shellNACECompliant

Shell NACE MR0175 compliant.

shellPressureDrop

double shellPressureDrop

Shell-side pressure drop [bar].

shellWallThickness

double shellWallThickness

Shell wall thickness [mm].

sourServiceRequired

boolean sourServiceRequired

NACE MR0175 sour service required flag.

temaClass

String temaClass

TEMA equipment class (R, C, or B).

temaType

String temaType

TEMA type designation (e.g., AES, BEM, AKT).

tubeDesignPressure

double tubeDesignPressure

Tube-side design pressure [bara].

tubeDesignTemperature

double tubeDesignTemperature

Tube-side design temperature [°C].

tubeFoulingResistance

double tubeFoulingResistance

Tube-side fouling resistance [m²K/W].

tubeLayoutAngle

int tubeLayoutAngle

Tube layout angle (30°, 45°, 60°, 90°).

tubeLength

double tubeLength

Tube length [m].

tubeMaterial

String tubeMaterial

Tube material.

tubeMaterialGrade

String tubeMaterialGrade

Tube material grade from HeatExchangerTubeMaterials.

tubeNACECompliant

boolean tubeNACECompliant

Tube NACE MR0175 compliant.

tubeOuterDiameter

double tubeOuterDiameter

Tube outer diameter [mm].

tubePitch

double tubePitch

Tube pitch [mm].

tubePressureDrop

double tubePressureDrop

Tube-side pressure drop [bar].

tubeWallThickness

double tubeWallThickness

Tube wall thickness [mm].

vibrationAnalysisRequired

boolean vibrationAnalysisRequired

Vibration analysis required flag.

Class neqsim.process.mechanicaldesign.heatexchanger.IncrementalZoneAnalysis

class IncrementalZoneAnalysis extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

baffleSpacingm

double baffleSpacingm

foulingShell

double foulingShell

foulingTube

double foulingTube

minimumApproachTemperature

double minimumApproachTemperature

shellIDm

double shellIDm

targetZoneCount

int targetZoneCount

totalDuty

double totalDuty

totalRequiredArea

double totalRequiredArea

totalShellSidePressureDrop

double totalShellSidePressureDrop

totalTubeSidePressureDrop

double totalTubeSidePressureDrop

triangularPitch

boolean triangularPitch

tubeCount

int tubeCount

tubeIDm

double tubeIDm

tubeLengthm

double tubeLengthm

tubeODm

double tubeODm

tubePasses

int tubePasses

tubePitchm

double tubePitchm

tubeWallConductivity

double tubeWallConductivity

weightedAverageU

double weightedAverageU

zones

List<IncrementalZoneAnalysis.IncrementalZone> zones

Class neqsim.process.mechanicaldesign.heatexchanger.IncrementalZoneAnalysis.IncrementalZone

class IncrementalZone extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

coldInletTemp

double coldInletTemp

Cold-side inlet temperature for this zone (K).

coldOutletTemp

double coldOutletTemp

Cold-side outlet temperature for this zone (K).

duty

double duty

Heat duty for this zone (W).

hotInletTemp

double hotInletTemp

Hot-side inlet temperature for this zone (K).

hotOutletTemp

double hotOutletTemp

Hot-side outlet temperature for this zone (K).

lmtd

double lmtd

Computed LMTD for this zone (K).

overallU

double overallU

Computed overall U (W/(m2*K)).

requiredArea

double requiredArea

Computed required area for this zone (m2).

shellConductivity

double shellConductivity

Shell-side thermal conductivity (W/(m*K)).

shellCp

double shellCp

Shell-side heat capacity (J/(kg*K)).

shellDensity

double shellDensity

Shell-side density (kg/m3).

shellMassFlowRate

double shellMassFlowRate

Shell-side mass flow rate (kg/s).

shellPhaseRegime

IncrementalZoneAnalysis.PhaseRegime shellPhaseRegime

Shell phase regime.

shellSideHTC

double shellSideHTC

Computed shell-side HTC (W/(m2*K)).

shellSidePressureDrop

double shellSidePressureDrop

Computed shell-side pressure drop for this zone (Pa).

shellViscosity

double shellViscosity

Shell-side viscosity (Pa*s).

tubeConductivity

double tubeConductivity

Tube-side thermal conductivity (W/(m*K)).

tubeCp

double tubeCp

Tube-side heat capacity (J/(kg*K)).

tubeDensity

double tubeDensity

Tube-side density (kg/m3).

tubeHeatOfVaporization

double tubeHeatOfVaporization

Tube-side heat of vaporization (J/kg).

tubeLiquidConductivity

double tubeLiquidConductivity

Tube-side liquid thermal conductivity (W/(m*K)).

tubeLiquidCp

double tubeLiquidCp

Tube-side liquid heat capacity (J/(kg*K)).

tubeLiquidDensity

double tubeLiquidDensity

Tube-side liquid density (kg/m3).

tubeLiquidViscosity

double tubeLiquidViscosity

Tube-side liquid viscosity (Pa*s).

tubeMassFlowRate

double tubeMassFlowRate

Tube-side mass flow rate (kg/s).

tubePhaseRegime

IncrementalZoneAnalysis.PhaseRegime tubePhaseRegime

Tube phase regime.

tubeQualityIn

double tubeQualityIn

Tube-side vapor quality at zone inlet (0 to 1).

tubeQualityOut

double tubeQualityOut

Tube-side vapor quality at zone outlet (0 to 1).

tubeReducedPressure

double tubeReducedPressure

Tube-side reduced pressure P/Pc (for Shah correlation).

tubeSideHTC

double tubeSideHTC

Computed tube-side HTC (W/(m2*K)).

tubeSidePressureDrop

double tubeSidePressureDrop

Computed tube-side pressure drop for this zone (Pa).

tubeSurfaceTension

double tubeSurfaceTension

Tube-side surface tension (N/m).

tubeVaporDensity

double tubeVaporDensity

Tube-side vapor density (kg/m3).

tubeVaporViscosity

double tubeVaporViscosity

Tube-side vapor viscosity (Pa*s).

tubeViscosity

double tubeViscosity

Tube-side viscosity (Pa*s).

zoneName

String zoneName

Zone name or identifier.

Class neqsim.process.mechanicaldesign.heatexchanger.TubeInsertModel

class TubeInsertModel extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

helixAngle

double helixAngle

Helix angle of the coiled wire (degrees). Typical: 30 to 70.

insertType

TubeInsertModel.InsertType insertType

matrixDensity

double matrixDensity

Matrix density factor (0 to 1). Higher = denser matrix. Typical: 0.3 to 0.7.

roughnessRatio

double roughnessRatio

Wire roughness height e/D. Typical: 0.01 to 0.05.

tapeThickness

double tapeThickness

Tape thickness (m). Typical: 0.5 to 1.5 mm.

tapeWidthFraction

double tapeWidthFraction

Tape width fraction (tape width / tube ID). Typically near 1.0 for full-width tapes.

twistRatio

double twistRatio

Twist ratio y = H/(2*D), where H = 180-degree pitch, D = tube ID. Typical: 2.5 to 10.

wireCoilPitch

double wireCoilPitch

Wire coil pitch (m). Typical: 5 to 20 mm.

wireDiameter

double wireDiameter

Wire diameter (m). Typical: 0.5 to 2 mm.

Package neqsim.process.mechanicaldesign.manifold

Class neqsim.process.mechanicaldesign.manifold.ManifoldMechanicalDesign

class ManifoldMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

branchDiameter

double branchDiameter

Branch outer diameter in meters.

calculator

ManifoldMechanicalDesignCalculator calculator

Calculator for mechanical design.

dataSource

ManifoldMechanicalDesignDataSource dataSource

Data source for design parameters.

designStandardCode

String designStandardCode

Design standard code.

headerDiameter

double headerDiameter

Header outer diameter in meters.

location

ManifoldMechanicalDesignCalculator.ManifoldLocation location

Manifold location.

manifoldType

ManifoldMechanicalDesignCalculator.ManifoldType manifoldType

Manifold type.

materialGrade

String materialGrade

Material grade.

numberOfInlets

int numberOfInlets

Number of inlets.

numberOfOutlets

int numberOfOutlets

Number of outlets.

waterDepth

double waterDepth

Water depth for subsea in meters.

Class neqsim.process.mechanicaldesign.manifold.ManifoldMechanicalDesignCalculator

class ManifoldMechanicalDesignCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acousticPowerLevel

double acousticPowerLevel

Acoustic power level in W.

aivLikelihoodOfFailure

double aivLikelihoodOfFailure

AIV likelihood of failure (0-1).

allowableStress

double allowableStress

Allowable stress in MPa.

appliedStandards

List<String> appliedStandards

List of applied standards.

branchOuterDiameter

double branchOuterDiameter

Branch pipe outer diameter in meters.

branchVelocity

double branchVelocity

Branch flow velocity in m/s.

branchWallThickness

double branchWallThickness

Branch pipe wall thickness in meters.

corrosionAllowance

double corrosionAllowance

Corrosion allowance in meters.

designFactor

double designFactor

Design factor (0.72 typical).

designPressure

double designPressure

Design pressure in MPa.

designTemperature

double designTemperature

Design temperature in Celsius.

erosionalCFactor

double erosionalCFactor

Erosional C-factor.

erosionalVelocity

double erosionalVelocity

Erosional velocity in m/s.

externalPressure

double externalPressure

External pressure at seabed in MPa.

fabricationTolerance

double fabricationTolerance

Fabrication tolerance factor.

hasPigging

boolean hasPigging

Has pig launcher/receiver capability.

headerHoopStress

double headerHoopStress

Hoop stress in header in MPa.

headerLength

double headerLength

Header length in meters.

headerOuterDiameter

double headerOuterDiameter

Header pipe outer diameter in meters.

headerVelocity

double headerVelocity

Header flow velocity in m/s.

headerWallThickness

double headerWallThickness

Header pipe wall thickness in meters.

jointEfficiency

double jointEfficiency

Weld joint efficiency.

liquidFraction

double liquidFraction

Liquid volume fraction (0-1).

location

ManifoldMechanicalDesignCalculator.ManifoldLocation location

Manifold location type (TOPSIDE, ONSHORE, SUBSEA).

manifoldType

ManifoldMechanicalDesignCalculator.ManifoldType manifoldType

Manifold type (PRODUCTION, INJECTION, TEST, PIGGING).

massFlowRate

double massFlowRate

Mass flow rate in kg/s.

materialGrade

String materialGrade

Material grade.

maxGasVelocity

double maxGasVelocity

Maximum gas velocity in m/s.

maxLiquidVelocity

double maxLiquidVelocity

Maximum liquid velocity in m/s.

maxMultiphaseVelocity

double maxMultiphaseVelocity

Maximum multiphase velocity in m/s.

minBranchWallThickness

double minBranchWallThickness

Minimum required branch wall thickness in meters.

minDesignTemperature

double minDesignTemperature

Minimum design temperature in Celsius.

minHeaderWallThickness

double minHeaderWallThickness

Minimum required header wall thickness in meters.

mixtureDensity

double mixtureDensity

Mixture density in kg/m3.

naturalFrequency

double naturalFrequency

Natural frequency of header in Hz.

numberOfInlets

int numberOfInlets

Number of inlet headers.

numberOfOutlets

int numberOfOutlets

Number of outlet headers.

numberOfSupports

int numberOfSupports

Number of supports required.

numberOfValves

int numberOfValves

Number of valves on manifold.

operatingPressure

double operatingPressure

Operating pressure in MPa.

overallHeight

double overallHeight

Manifold overall height in meters.

overallLength

double overallLength

Manifold overall length in meters.

overallWidth

double overallWidth

Manifold overall width in meters.

reinforcementCheckPassed

boolean reinforcementCheckPassed

Reinforcement check passed.

reinforcementPadThickness

double reinforcementPadThickness

Reinforcement pad thickness in meters.

reinforcementRequired

boolean reinforcementRequired

Reinforcement required at branch connections.

safetyClassFactor

double safetyClassFactor

Safety class factor (for subsea).

smts

double smts

Specified Minimum Tensile Strength in MPa.

smys

double smys

Specified Minimum Yield Strength in MPa.

steelDensity

double steelDensity

Steel density in kg/m3.

submergedWeight

double submergedWeight

Total submerged weight in kg/m (for subsea).

supportSpacing

double supportSpacing

Support spacing in meters.

testPressure

double testPressure

Test pressure in MPa.

thermalExpansion

double thermalExpansion

Thermal expansion coefficient in 1/°C.

totalDryWeight

double totalDryWeight

Total dry weight in kg.

velocityCheckPassed

boolean velocityCheckPassed

Velocity check passed.

vibrationCheckPassed

boolean vibrationCheckPassed

Vibration check passed.

vortexSheddingFrequency

double vortexSheddingFrequency

Vortex shedding frequency in Hz.

wallThicknessCheckPassed

boolean wallThicknessCheckPassed

Wall thickness check passed.

waterDepth

double waterDepth

Water depth for subsea in meters.

youngsModulus

double youngsModulus

Young's modulus in GPa.

Class neqsim.process.mechanicaldesign.manifold.ManifoldMechanicalDesignDataSource

class ManifoldMechanicalDesignDataSource extends Object implements Serializable

serialVersionUID:

1000L

Package neqsim.process.mechanicaldesign.membrane

Class neqsim.process.mechanicaldesign.membrane.MembraneMechanicalDesign

class MembraneMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

allowableStressMPa

double allowableStressMPa

Allowable stress for housing material in MPa.

areaPerModule

double areaPerModule

Membrane area per module in m2.

designPressure

double designPressure

Design pressure in bara.

designPressureMargin

double designPressureMargin

Design pressure margin factor.

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating in Celsius.

feedPressureDrop

double feedPressureDrop

Feed-side pressure drop in bar.

housingDiameter

double housingDiameter

Module housing inner diameter in meters.

housingLength

double housingLength

Module housing length in meters.

housingWallThickness

double housingWallThickness

Housing wall thickness in mm.

membraneLifeMonths

int membraneLifeMonths

Membrane replacement interval in months.

moduleType

String moduleType

Module configuration: "HOLLOW_FIBER" or "SPIRAL_WOUND".

numberOfModules

int numberOfModules

Number of modules required.

permeatePressureDrop

double permeatePressureDrop

Permeate-side pressure drop in bar.

permeatePurity

double permeatePurity

Permeate purity (mole fraction of target component).

skidFootprint

double skidFootprint

Skid footprint in m2.

stageCut

double stageCut

Stage cut (permeate fraction).

totalMembraneArea

double totalMembraneArea

Total required membrane area in m2.

totalModuleWeight

double totalModuleWeight

Total weight of all modules in kg.

totalSkidWeight

double totalSkidWeight

Skid weight including frame in kg.

Package neqsim.process.mechanicaldesign.mixer

Class neqsim.process.mechanicaldesign.mixer.MixerMechanicalDesign

class MixerMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

branchDiameter

double branchDiameter

Branch connection diameter [m].

designStandardCode

String designStandardCode

Design standard code.

designVelocity

double designVelocity

Design velocity in header [m/s].

headerDiameter

double headerDiameter

Header internal diameter [m].

headerLength

double headerLength

Header length [m].

headerWallThickness

double headerWallThickness

Header wall thickness [mm].

materialGrade

String materialGrade

Material grade for construction.

maxAllowableVelocity

double maxAllowableVelocity

Maximum allowable velocity [m/s].

mixerType

String mixerType

Mixer type (tee, wye, header, manifold).

mixingChamberVolume

double mixingChamberVolume

Mixing chamber volume [m3].

numberOfBranches

int numberOfBranches

Number of inlet branches.

totalPressureDrop

double totalPressureDrop

Total pressure drop [bar].

Package neqsim.process.mechanicaldesign.motor

Class neqsim.process.mechanicaldesign.motor.MotorMechanicalDesign

class MotorMechanicalDesign extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

altitudeDeratingFactor

double altitudeDeratingFactor

Altitude derating factor (1.0 = no derating).

altitudeM

double altitudeM

Installation altitude in meters above sea level.

ambientTemperatureC

double ambientTemperatureC

Ambient temperature in Celsius.

appliedStandards

List<String> appliedStandards

List of applied standards.

bearingL10LifeHours

double bearingL10LifeHours

Calculated L10 bearing life in hours.

bearingType

String bearingType

Bearing type.

combinedDeratingFactor

double combinedDeratingFactor

Combined derating factor.

coolingAirFlowM3s

double coolingAirFlowM3s

Cooling air flow required in m3/s (for fan-cooled).

coolingCode

String coolingCode

IC code per IEC 60034-6.

coolingDescription

String coolingDescription

Cooling method description.

deBearingDesignation

String deBearingDesignation

Drive-end bearing designation.

deratedPowerKW

double deratedPowerKW

Derated motor output power in kW.

designNotes

List<String> designNotes

List of design notes/warnings.

dynamicFoundationLoadKN

double dynamicFoundationLoadKN

Dynamic foundation load in kN (due to unbalance).

enclosureType

String enclosureType

Enclosure type description.

exMarking

String exMarking

Ex protection marking (empty if non-hazardous).

foundationType

String foundationType

Foundation type recommendation.

foundationWeightRatio

double foundationWeightRatio

Minimum foundation weight ratio (concrete/motor per IEEE 841).

frequencyHz

double frequencyHz

Supply frequency in Hz.

gasGroup

String gasGroup

Gas group for Ex classification (IIA, IIB, IIC).

hasVFD

boolean hasVFD

Whether the motor has a VFD.

hazardousZone

int hazardousZone

Hazardous area zone (-1 = non-hazardous, 0, 1, 2).

heatDissipationKW

double heatDissipationKW

Heat dissipation in kW.

ipRating

String ipRating

IP protection rating per IEC 60034-5.

lubricationMethod

String lubricationMethod

Lubrication recommendation.

maxVibrationMmS

double maxVibrationMmS

Maximum vibration velocity in mm/s RMS at bearing housing.

minBearingLifeHours

double minBearingLifeHours

Minimum L10 bearing life requirement per IEEE 841 (hours).

motorHeightMm

double motorHeightMm

Motor height in mm (estimated).

motorLengthMm

double motorLengthMm

Motor length in mm (estimated).

motorStandard

String motorStandard

Motor standard: "IEC" or "NEMA".

motorWeightKg

double motorWeightKg

Motor weight in kg.

motorWidthMm

double motorWidthMm

Motor width in mm (estimated).

ndeBearingDesignation

String ndeBearingDesignation

Non-drive-end bearing designation.

noiseLimitDbA

double noiseLimitDbA

IEC 60034-9 noise limit in dB(A).

noiseWithinLimit

boolean noiseWithinLimit

Whether noise meets IEC 60034-9 limit.

noiseWithinNorsokLimit

boolean noiseWithinNorsokLimit

Whether noise meets NORSOK S-002 limit (83 dB(A) at 1m).

poles

int poles

Number of poles (2, 4, 6, 8).

ratedSpeedRPM

double ratedSpeedRPM

Rated speed in RPM.

regreaseIntervalHours

double regreaseIntervalHours

Re-greasing interval in hours.

requiredFoundationMassKg

double requiredFoundationMassKg

Required foundation mass in kg.

shaftHeightMm

double shaftHeightMm

Shaft height in mm (center of shaft above base).

shaftPowerKW

double shaftPowerKW

Shaft power required from the driven equipment in kW.

soundPowerLevelDbA

double soundPowerLevelDbA

Sound power level in dB(A).

soundPressureLevelAt1mDbA

double soundPressureLevelAt1mDbA

Sound pressure level at 1m in dB(A).

staticFoundationLoadKN

double staticFoundationLoadKN

Static foundation load in kN.

temperatureDeratingFactor

double temperatureDeratingFactor

Temperature derating factor (1.0 = no derating).

totalFoundationLoadKN

double totalFoundationLoadKN

Total foundation load in kN (static + dynamic).

vibrationGrade

String vibrationGrade

Vibration grade per IEC 60034-14 (A or B).

vibrationZone

String vibrationZone

Vibration zone per ISO 10816-3 (A, B, C, or D).

Package neqsim.process.mechanicaldesign.pipeline

Class neqsim.process.mechanicaldesign.pipeline.HydrogenPipelineDesign

class HydrogenPipelineDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

corrosionAllowance

double corrosionAllowance

Corrosion allowance [mm].

designFactor

double designFactor

Design factor per ASME B31.12 (lower than natural gas).

designPressure

double designPressure

Design pressure [bara].

designTemperature

double designTemperature

Design temperature [C].

hydrogenDeratingFactor

double hydrogenDeratingFactor

Hydrogen derating factor based on material grade.

hydrogenMoleFraction

double hydrogenMoleFraction

Hydrogen mole fraction in transported gas [0-1].

jointFactor

double jointFactor

Joint factor (1.0 for seamless or SAW).

materialCompatible

boolean materialCompatible

Whether the material is compatible with hydrogen.

materialGrade

String materialGrade

Material grade per API 5L.

outerDiameter

double outerDiameter

Outer diameter [m].

permeationRate

double permeationRate

Calculated hydrogen permeation rate [mol/(m2 s)].

pipelineLength

double pipelineLength

Pipeline length [m].

requiredWallThickness

double requiredWallThickness

Required wall thickness [mm].

smts

double smts

SMTS of selected material [MPa].

smys

double smys

SMYS of selected material [MPa].

temperatureDeratingFactor

double temperatureDeratingFactor

Temperature derating factor.

waterDepth

double waterDepth

Water depth for subsea pipelines [m], 0 for onshore.

Class neqsim.process.mechanicaldesign.pipeline.PipelineMechanicalDesign

class PipelineMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

designLifeYears

double designLifeYears

Design life in years for corrosion allowance calculation.

designStandardCode

String designStandardCode

Design standard code.

glycolWeightFraction

double glycolWeightFraction

Glycol (MEG) weight fraction in aqueous phase (0 to 1).

inhibitorEfficiency

double inhibitorEfficiency

Inhibitor efficiency (0 to 1) for corrosion rate calculation.

innerDiameter

double innerDiameter

Inner diameter in meters.

locationClass

int locationClass

Location class per ASME B31.8.

materialGrade

String materialGrade

Material grade per API 5L.

pipelineLength

double pipelineLength

Pipeline length in meters.

Class neqsim.process.mechanicaldesign.pipeline.PipeMechanicalDesignCalculator

class PipeMechanicalDesignCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

allowableSpanLength

double allowableSpanLength

Span length for free spans in meters.

ambientTemperature

double ambientTemperature

Ambient temperature in Celsius.

anchorCost

double anchorCost

Anchor cost in USD each.

anchorSpacing

double anchorSpacing

Anchor spacing in meters.

burialDepth

double burialDepth

Burial depth in meters.

coatingCost

double coatingCost

Coating cost in USD.

coatingDensity

double coatingDensity

Coating density in kg/m3.

coatingPricePerM2

double coatingPricePerM2

Coating price in USD/m2.

coatingThickness

double coatingThickness

External coating thickness in meters.

coatingType

String coatingType

External coating type (e.g., "3LPE", "FBE", "CTE").

coatingWeightPerMeter

double coatingWeightPerMeter

Coating weight per meter in kg/m.

collapsePressure

double collapsePressure

Collapse pressure in MPa.

concreteCoatingThickness

double concreteCoatingThickness

Concrete weight coating thickness in meters.

concreteCost

double concreteCost

Concrete coating cost in USD.

concreteDensity

double concreteDensity

Concrete density in kg/m3.

concretePricePerM3

double concretePricePerM3

Concrete price in USD/m3.

concreteWeightPerMeter

double concreteWeightPerMeter

Concrete weight per meter in kg/m.

contentWeightPerMeter

double contentWeightPerMeter

Content weight per meter in kg/m.

contingencyCost

double contingencyCost

Contingency cost in USD.

contingencyPercentage

double contingencyPercentage

Contingency percentage.

corrosionAllowance

double corrosionAllowance

Corrosion allowance in meters.

designCode

String designCode

Design code to use.

designFactor

double designFactor

Design factor (F).

designPressure

double designPressure

Design pressure in MPa.

designTemperature

double designTemperature

Design temperature in Celsius.

engineeringCost

double engineeringCost

Engineering cost in USD.

engineeringCostPercentage

double engineeringCostPercentage

Engineering and design cost percentage.

expansionLoopLength

double expansionLoopLength

Expansion loop length in meters.

externalPressure

double externalPressure

External pressure at seabed in MPa.

externalSurfaceAreaPerMeter

double externalSurfaceAreaPerMeter

External surface area per meter in m2/m.

fabricationTolerance

double fabricationTolerance

Fabrication tolerance factor (typically 0.875 for seamless).

fatigueLife

double fatigueLife

Fatigue life in years.

fieldWeldCost

double fieldWeldCost

Field weld cost in USD per weld.

flangeClass

int flangeClass

Flange class per ASME B16.5.

flangePairCost

double flangePairCost

Flange pair cost in USD.

flangesAndFittingsCost

double flangesAndFittingsCost

Flanges and fittings cost in USD.

hoopStress

double hoopStress

Calculated hoop stress in MPa.

innerDiameter

double innerDiameter

Pipe inner diameter in meters (calculated).

installationCost

double installationCost

Installation cost in USD.

installationCostPerMeter

double installationCostPerMeter

Installation cost in USD/m (varies by method).

installationManhoursPerMeter

double installationManhoursPerMeter

Installation manhours per meter.

installationMethod

String installationMethod

Installation method (e.g., "S-lay", "J-lay", "Reel-lay", "Onshore").

insulationConductivity

double insulationConductivity

Insulation thermal conductivity in W/(m·K).

insulationCost

double insulationCost

Insulation cost in USD.

insulationDensity

double insulationDensity

Insulation density in kg/m3.

insulationPricePerM3

double insulationPricePerM3

Insulation price in USD/m3.

insulationThickness

double insulationThickness

Insulation thickness in meters.

insulationType

String insulationType

Insulation type (e.g., "PUF", "mineral wool", "none").

insulationWeightPerMeter

double insulationWeightPerMeter

Insulation weight per meter in kg/m.

internalSurfaceAreaPerMeter

double internalSurfaceAreaPerMeter

Internal surface area per meter in m2/m.

jointFactor

double jointFactor

Longitudinal joint factor (E).

lateralBucklingForce

double lateralBucklingForce

Lateral buckling force in N.

locationClass

int locationClass

Location class (1-4 for ASME B31.8).

longitudinalStress

double longitudinalStress

Calculated longitudinal stress in MPa.

maop

double maop

Maximum Allowable Operating Pressure in MPa.

materialGrade

String materialGrade

Material grade (e.g., "X52", "X65", "X70").

minimumBendRadius

double minimumBendRadius

Bending radius for field bends in meters.

minimumWallThickness

double minimumWallThickness

Calculated minimum wall thickness in meters.

nominalWallThickness

double nominalWallThickness

Nominal wall thickness in meters.

numberOfAnchors

int numberOfAnchors

Number of anchors.

numberOfExpansionLoops

int numberOfExpansionLoops

Number of expansion loops required.

numberOfFieldWelds

int numberOfFieldWelds

Number of field welds.

numberOfFlangePairs

int numberOfFlangePairs

Number of flange pairs.

numberOfJoints

int numberOfJoints

Number of pipe joints (12m standard length).

numberOfSupports

int numberOfSupports

Number of pipe supports.

numberOfValves

int numberOfValves

Number of valves.

outerDiameter

double outerDiameter

Pipe outer diameter in meters.

pipelineLength

double pipelineLength

Pipeline length in meters.

poissonsRatio

double poissonsRatio

Poisson's ratio.

propagationBucklingPressure

double propagationBucklingPressure

Propagation buckling pressure in MPa.

requiredNegativeBuoyancy

double requiredNegativeBuoyancy

Required negative buoyancy in N/m.

seawaterDensity

double seawaterDensity

Seawater density in kg/m3.

smts

double smts

Specified Minimum Tensile Strength in MPa.

smys

double smys

Specified Minimum Yield Strength in MPa.

steelDensity

double steelDensity

Steel density in kg/m3.

steelMaterialCost

double steelMaterialCost

Steel material cost in USD.

steelPricePerKg

double steelPricePerKg

Steel price in USD/kg.

steelWeightPerMeter

double steelWeightPerMeter

Pipe steel weight per meter in kg/m.

submergedWeightPerMeter

double submergedWeightPerMeter

Submerged weight per meter in kg/m (negative = buoyant).

supportCost

double supportCost

Support cost in USD each.

supportsAndAnchorsCost

double supportsAndAnchorsCost

Supports and anchors cost in USD.

supportSpacing

double supportSpacing

Pipe support spacing in meters.

temperatureDerating

double temperatureDerating

Temperature derating factor (T).

testingCost

double testingCost

Testing cost in USD.

testingCostPercentage

double testingCostPercentage

Testing and commissioning cost percentage.

thermalExpansion

double thermalExpansion

Thermal expansion coefficient in 1/K.

totalDirectCost

double totalDirectCost

Total direct cost in USD.

totalDryWeightPerMeter

double totalDryWeightPerMeter

Total dry weight per meter in kg/m.

totalExternalSurfaceArea

double totalExternalSurfaceArea

Total external surface area in m2.

totalLaborManhours

double totalLaborManhours

Total labor manhours.

totalPipelineWeight

double totalPipelineWeight

Total pipeline dry weight in kg.

totalProjectCost

double totalProjectCost

Total project cost in USD.

upheavalBucklingForce

double upheavalBucklingForce

Upheaval buckling force in N.

valveCost

double valveCost

Valve cost in USD.

valvesCost

double valvesCost

Valves cost in USD.

valveType

String valveType

Valve type (e.g., "Ball", "Gate", "Check").

vonMisesStress

double vonMisesStress

Calculated von Mises stress in MPa.

waterDepth

double waterDepth

Water depth in meters.

weldingCost

double weldingCost

Welding cost in USD.

weldingManhoursPerJoint

double weldingManhoursPerJoint

Welding manhours per joint.

weldJointEfficiency

double weldJointEfficiency

Weld joint efficiency.

youngsModulus

double youngsModulus

Young's modulus in MPa.

Class neqsim.process.mechanicaldesign.pipeline.RiserMechanicalDesign

class RiserMechanicalDesign extends PipelineMechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

riser

Riser riser

Reference to the riser equipment.

riserCalculator

RiserMechanicalDesignCalculator riserCalculator

Riser-specific calculator.

Class neqsim.process.mechanicaldesign.pipeline.RiserMechanicalDesignCalculator

class RiserMechanicalDesignCalculator extends PipeMechanicalDesignCalculator implements Serializable

serialVersionUID:

1000L

Serialized Fields

addedMassCoefficient

double addedMassCoefficient

Added mass coefficient (configurable from DNV-RP-C205).

appliedTopTension

double appliedTopTension

Applied top tension for TTR in kN.

bottomTension

double bottomTension

Bottom tension at seabed in kN.

buoyancyModuleDepth

double buoyancyModuleDepth

Depth of buoyancy modules from surface in meters.

buoyancyModuleLength

double buoyancyModuleLength

Length of buoyancy section in meters.

buoyancyPerMeter

double buoyancyPerMeter

Buoyancy per unit length in N/m.

catenaryParameter

double catenaryParameter

Catenary parameter a in meters.

collapseUtilization

double collapseUtilization

Collapse utilization factor.

combinedDynamicStress

double combinedDynamicStress

Combined dynamic stress in MPa.

currentVelocity

double currentVelocity

Current velocity at mid-depth in m/s.

departureAngle

double departureAngle

Departure angle from seabed in degrees.

dragCoefficient

double dragCoefficient

Drag coefficient for circular cylinder (configurable from DNV-RP-C205).

dynamicAmplificationFactor

double dynamicAmplificationFactor

Dynamic amplification factor (configurable from DNV-OS-F201).

fatigueDesignFactor

double fatigueDesignFactor

Fatigue design factor (configurable from DNV-RP-F204).

heaveInducedStress

double heaveInducedStress

Heave-induced stress range in MPa.

liftCoefficient

double liftCoefficient

Lift coefficient for VIV (configurable from DNV-RP-C205).

maxStressUtilization

double maxStressUtilization

Maximum stress utilization.

maxTopTension

double maxTopTension

Maximum top tension in kN.

minTopTension

double minTopTension

Minimum top tension in kN.

naturalFrequency

double naturalFrequency

Riser natural frequency (first mode) in Hz.

peakWavePeriod

double peakWavePeriod

Peak wave period in seconds.

platformHeaveAmplitude

double platformHeaveAmplitude

Platform heave motion amplitude in meters.

platformHeavePeriod

double platformHeavePeriod

Platform heave period in seconds.

riserFatigueLife

double riserFatigueLife

Riser fatigue life in years.

riserType

String riserType

Riser type name.

seabedCurrentVelocity

double seabedCurrentVelocity

Current velocity at seabed in m/s.

seabedFriction

double seabedFriction

Seabed friction coefficient.

significantWaveHeight

double significantWaveHeight

Significant wave height in meters.

snParameter

double snParameter

S-N curve parameter log(a) for seawater with CP (configurable from DNV-RP-C203).

snSlope

double snSlope

S-N curve slope parameter m (configurable from DNV-RP-C203).

stressConcentrationFactor

double stressConcentrationFactor

Stress concentration factor for girth welds (configurable from DNV-RP-F204).

strokeRequirement

double strokeRequirement

Stroke requirement for TTR in meters.

strouhalNumber

double strouhalNumber

Strouhal number for VIV (configurable from DNV-RP-C205).

tensionVariationFactor

double tensionVariationFactor

Tension variation factor for heave.

topAngle

double topAngle

Top hangoff angle from vertical in degrees.

topTension

double topTension

Calculated top tension in kN.

totalFatigueDamageRate

double totalFatigueDamageRate

Total fatigue damage rate per year.

touchdownBendingMoment

double touchdownBendingMoment

Bending moment at touchdown in kN.m.

touchdownCurvatureRadius

double touchdownCurvatureRadius

Radius of curvature at touchdown in meters.

touchdownPointStress

double touchdownPointStress

Touchdown point stress in MPa.

touchdownZoneLength

double touchdownZoneLength

Length of touchdown zone in meters.

vivAmplitude

double vivAmplitude

VIV amplitude (A/D ratio).

vivFatigueDamage

double vivFatigueDamage

VIV fatigue damage per year.

vivLockIn

boolean vivLockIn

Whether VIV lock-in is occurring.

vivStressRange

double vivStressRange

VIV stress range in MPa.

vortexSheddingFrequency

double vortexSheddingFrequency

Vortex shedding frequency in Hz.

waterDepth

double waterDepth

Water depth in meters.

waveFatigueDamage

double waveFatigueDamage

Wave fatigue damage per year.

waveInducedStress

double waveInducedStress

Wave-induced stress range in MPa.

Class neqsim.process.mechanicaldesign.pipeline.TopsidePipingMechanicalDesign

class TopsidePipingMechanicalDesign extends PipelineMechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculatedSupportSpacing

double calculatedSupportSpacing

Calculated support spacing in meters.

installationTemperature

double installationTemperature

Installation temperature in Kelvin.

minOperationTemperature

double minOperationTemperature

Minimum operating temperature in Kelvin.

numberOfElbows90

int numberOfElbows90

Number of 90-degree elbows.

numberOfExpansionLoops

int numberOfExpansionLoops

Number of expansion loops.

numberOfSupports

int numberOfSupports

Number of calculated supports.

numberOfTees

int numberOfTees

Number of tees.

numberOfValves

int numberOfValves

Number of valves.

pipeSchedule

String pipeSchedule

Pipe schedule.

serviceType

String serviceType

Service type for this piping.

Class neqsim.process.mechanicaldesign.pipeline.TopsidePipingMechanicalDesignCalculator

class TopsidePipingMechanicalDesignCalculator extends PipeMechanicalDesignCalculator implements Serializable

serialVersionUID:

1000L

Serialized Fields

acousticPowerLevel

double acousticPowerLevel

Acoustic power level in W.

actualVelocity

double actualVelocity

Actual flow velocity in m/s.

aivLikelihoodOfFailure

double aivLikelihoodOfFailure

Likelihood of failure from AIV (0-1).

allowableStress

double allowableStress

Allowable stress per ASME B31.3 in MPa.

anchorForce

double anchorForce

Anchor force in kN.

appliedStandards

List<String> appliedStandards

List of applied standards.

calculatedSupportSpacing

double calculatedSupportSpacing

Calculated support spacing in meters.

cleanService

boolean cleanService

Is clean service (no solids).

co2Service

boolean co2Service

Contains CO2.

combinedStress

double combinedStress

Combined stress in MPa.

erosionalCFactor

double erosionalCFactor

C-factor for erosional velocity (typically 100-150).

erosionalVelocity

double erosionalVelocity

Erosional velocity per API RP 14E in m/s.

fivScreeningNumber

double fivScreeningNumber

Flow-induced vibration screening number.

flexibilityFactor

double flexibilityFactor

Flexibility factor.

freeExpansion

double freeExpansion

Free thermal expansion in mm.

gasDensity

double gasDensity

Gas density in kg/m3.

gasViscosity

double gasViscosity

Gas viscosity in Pa-s.

installationTemperature

double installationTemperature

Installation temperature in Celsius.

insulationDensity

double insulationDensity

Insulation density in kg/m3 (mineral wool ~80, PUF ~40).

liquidDensity

double liquidDensity

Liquid density in kg/m3.

liquidFraction

double liquidFraction

Liquid volume fraction (0-1).

liquidViscosity

double liquidViscosity

Liquid viscosity in Pa-s.

lockInVelocityLower

double lockInVelocityLower

Lock-in velocity range lower bound in m/s.

lockInVelocityUpper

double lockInVelocityUpper

Lock-in velocity range upper bound in m/s.

massFlowRate

double massFlowRate

Flow rate in kg/s.

maxAllowedDeflection

double maxAllowedDeflection

Maximum allowed deflection in mm.

maxGasVelocity

double maxGasVelocity

Maximum recommended gas velocity in m/s.

maxLiquidVelocity

double maxLiquidVelocity

Maximum recommended liquid velocity in m/s.

maxMultiphaseVelocity

double maxMultiphaseVelocity

Maximum recommended multiphase velocity in m/s.

mixtureDensity

double mixtureDensity

Mixture density in kg/m3.

momentOfInertia

double momentOfInertia

Second moment of area in m4.

noiseVelocityLimit

double noiseVelocityLimit

Noise velocity limit in m/s.

occasionalStress

double occasionalStress

Occasional stress (wind, earthquake) in MPa.

operatingTemperature

double operatingTemperature

Operating temperature in Celsius.

pipeNaturalFrequency

double pipeNaturalFrequency

Natural frequency of pipe span in Hz.

requiredLoopLength

double requiredLoopLength

Expansion loop length required in meters.

sandContent

double sandContent

Sand content in kg/m3.

sectionModulus

double sectionModulus

Section modulus in m3.

serviceType

String serviceType

Service type string.

sourService

boolean sourService

Contains H2S.

stressCheckPassed

boolean stressCheckPassed

Stress check passed.

stressIntensificationFactor

double stressIntensificationFactor

Stress intensity factor for fittings.

supportCheckPassed

boolean supportCheckPassed

Support spacing check passed.

sustainedStress

double sustainedStress

Sustained stress (pressure + weight) in MPa.

thermalExpansionStress

double thermalExpansionStress

Thermal expansion stress in MPa.

totalWeightPerMeter

double totalWeightPerMeter

Pipe weight per unit length in kg/m (including contents and insulation).

velocityCheckPassed

boolean velocityCheckPassed

Velocity check passed.

vibrationCheckPassed

boolean vibrationCheckPassed

Vibration check passed.

volumetricFlowRate

double volumetricFlowRate

Volumetric flow rate in m3/s.

vortexSheddingFrequency

double vortexSheddingFrequency

Vortex shedding frequency in Hz.

Package neqsim.process.mechanicaldesign.powergeneration

Class neqsim.process.mechanicaldesign.powergeneration.PowerGenerationMechanicalDesign

class PowerGenerationMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2EmissionTonnesHr

double co2EmissionTonnesHr

CO2 emission rate in tonnes/hr.

compressionRatio

double compressionRatio

Compression ratio.

exhaustMassFlowKgS

double exhaustMassFlowKgS

Exhaust gas mass flow in kg/s.

exhaustTemperatureC

double exhaustTemperatureC

Exhaust gas temperature in Celsius.

fuelConsumptionKgHr

double fuelConsumptionKgHr

Fuel consumption in kg/hr.

heatRateKJkWh

double heatRateKJkWh

Heat rate in kJ/kWh.

includeWHRU

boolean includeWHRU

Whether WHRU is included.

noiseLevelDbA

double noiseLevelDbA

Noise level at 1m in dB(A).

noxPpm

double noxPpm

NOx emission in ppm (dry, 15% O2).

packageLength

double packageLength

Turbine package length in meters.

packageWidth

double packageWidth

Turbine package width in meters.

ratedPowerMW

double ratedPowerMW

Rated power output in MW.

thermalEfficiency

double thermalEfficiency

Gas turbine thermal efficiency (LHV basis).

totalSystemWeightTonnes

double totalSystemWeightTonnes

Total system weight in tonnes.

turbineClass

String turbineClass

Turbine class: "AERODERIVATIVE", "INDUSTRIAL", "MICRO".

turbineInletTemperatureC

double turbineInletTemperatureC

Turbine inlet temperature in Celsius.

turbinePackageWeightTonnes

double turbinePackageWeightTonnes

Gas turbine package weight in tonnes.

whruDutyMW

double whruDutyMW

WHRU heat recovery in MW.

whruOutletTemperatureC

double whruOutletTemperatureC

WHRU exhaust outlet temperature in Celsius.

whruWeightKg

double whruWeightKg

WHRU weight in kg.

Package neqsim.process.mechanicaldesign.pump

Class neqsim.process.mechanicaldesign.pump.PumpMechanicalDesign

class PumpMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

aorHighFraction

double aorHighFraction

Allowable operating region - high limit as fraction of BEP.

aorLowFraction

double aorLowFraction

Allowable operating region - low limit as fraction of BEP.

baseplateWeight

double baseplateWeight

Baseplate weight [kg].

bepFlow

double bepFlow

Best efficiency point flow [m³/h].

bepHead

double bepHead

Best efficiency point head [m].

casingWallThickness

double casingWallThickness

Casing wall thickness [mm].

casingWeight

double casingWeight

Casing weight [kg].

couplingWeight

double couplingWeight

Coupling weight [kg].

designPressure

double designPressure

Design pressure [bara].

designTemperature

double designTemperature

Design temperature [C].

dischargeNozzleSize

double dischargeNozzleSize

Discharge nozzle size [inches].

driverMargin

double driverMargin

Driver power margin factor.

driverPower

double driverPower

Required driver power [kW].

headMarginFactor

double headMarginFactor

Head margin factor.

hydraulicPowerMargin

double hydraulicPowerMargin

Hydraulic power sizing margin.

impellerDiameter

double impellerDiameter

Impeller outer diameter [mm].

impellerWeight

double impellerWeight

Impeller weight [kg].

impellerWidth

double impellerWidth

Impeller width [mm].

maxAllowableWorkingPressure

double maxAllowableWorkingPressure

Maximum allowable working pressure [bara].

maxContinuousFlowFraction

double maxContinuousFlowFraction

Maximum continuous flow as fraction of BEP.

maximumFlow

double maximumFlow

Maximum allowable flow [m³/h].

maxSuctionSpecificSpeed

double maxSuctionSpecificSpeed

Maximum suction specific speed for stable operation.

minContinuousFlowFraction

double minContinuousFlowFraction

Minimum continuous flow as fraction of BEP.

minimumFlow

double minimumFlow

Minimum continuous stable flow [m³/h].

motorWeight

double motorWeight

Motor weight [kg].

npshAvailable

double npshAvailable

NPSH available [m].

npshMargin

double npshMargin

NPSH margin (NPSHa / NPSHr).

npshMarginFactor

double npshMarginFactor

NPSH available margin factor over required.

npshRequired

double npshRequired

NPSH required [m].

numberOfStages

int numberOfStages

Number of stages.

porHighFraction

double porHighFraction

Preferred operating region - high limit as fraction of BEP.

porLowFraction

double porLowFraction

Preferred operating region - low limit as fraction of BEP.

pumpEfficiency

double pumpEfficiency

Pump efficiency at operating point.

pumpType

PumpMechanicalDesign.PumpType pumpType

Pump type classification.

ratedSpeed

double ratedSpeed

Rated speed [rpm].

sealType

PumpMechanicalDesign.SealType sealType

Seal type.

sealWeight

double sealWeight

Seal system weight [kg].

shaftDiameter

double shaftDiameter

Shaft diameter at impeller [mm].

shaftWeight

double shaftWeight

Shaft weight [kg].

specificSpeed

double specificSpeed

Specific speed (Ns) - dimensionless.

suctionNozzleSize

double suctionNozzleSize

Suction nozzle size [inches].

suctionSpecificSpeed

double suctionSpecificSpeed

Suction specific speed (Nss) - dimensionless.

Class neqsim.process.mechanicaldesign.pump.PumpMechanicalDesignResponse

class PumpMechanicalDesignResponse extends MechanicalDesignResponse implements Serializable

serialVersionUID:

1001L

Serialized Fields

aorHighFraction

double aorHighFraction

Allowable Operating Region high boundary fraction of BEP.

aorLowFraction

double aorLowFraction

Allowable Operating Region low boundary fraction of BEP.

api610TypeCode

String api610TypeCode

API 610 type code (OH1, OH2, BB1, VS1, etc.).

bepFlow

double bepFlow

Best efficiency point flow [m³/h].

bepHead

double bepHead

Best efficiency point head [m].

casingWallThickness

double casingWallThickness

Casing wall thickness [mm].

differentialPressure

double differentialPressure

Differential pressure [bar].

dischargeNozzleSize

double dischargeNozzleSize

Discharge nozzle size [inches].

dischargePressure

double dischargePressure

Discharge pressure [bara].

driverMargin

double driverMargin

Driver power margin factor.

driverPower

double driverPower

Required driver power [kW].

efficiency

double efficiency

Pump efficiency at rated point.

fluidDensity

double fluidDensity

Fluid density [kg/m³].

fluidTemperature

double fluidTemperature

Fluid temperature [°C].

fluidViscosity

double fluidViscosity

Fluid viscosity [cP].

headMarginFactor

double headMarginFactor

Head margin factor.

hydraulicPowerMargin

double hydraulicPowerMargin

Hydraulic power margin factor.

impellerDiameter

double impellerDiameter

Impeller diameter [mm].

impellerWidth

double impellerWidth

Impeller width [mm].

maxSuctionSpecificSpeed

double maxSuctionSpecificSpeed

Maximum suction specific speed.

minimumContinuousFlow

double minimumContinuousFlow

Minimum continuous flow [m³/h].

npsha

double npsha

Net positive suction head available [m].

npshMargin

double npshMargin

NPSH margin [m].

npshMarginFactor

double npshMarginFactor

NPSH margin factor.

npshr

double npshr

Net positive suction head required [m].

numberOfStages

int numberOfStages

Number of stages.

porHighFraction

double porHighFraction

Preferred Operating Region high boundary fraction of BEP.

porLowFraction

double porLowFraction

Preferred Operating Region low boundary fraction of BEP.

pumpType

String pumpType

Pump type (overhung, between bearings, vertically suspended).

ratedFlow

double ratedFlow

Rated flow [m³/h].

ratedHead

double ratedHead

Rated head [m].

ratedSpeed

double ratedSpeed

Rated speed [rpm].

sealType

String sealType

Seal type (packed, single mechanical, double mechanical, etc.).

shaftDiameter

double shaftDiameter

Shaft diameter at impeller [mm].

specificSpeed

double specificSpeed

Specific speed (Ns).

suctionNozzleSize

double suctionNozzleSize

Suction nozzle size [inches].

suctionPressure

double suctionPressure

Suction pressure [bara].

suctionSpecificSpeed

double suctionSpecificSpeed

Suction specific speed (Nss).

Package neqsim.process.mechanicaldesign.reactor

Class neqsim.process.mechanicaldesign.reactor.ReactorMechanicalDesign

class ReactorMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

allowableStressMPa

double allowableStressMPa

Allowable stress for vessel material in MPa.

bedPressureDrop

double bedPressureDrop

Bed pressure drop in bar (computed, Ergun equation).

bedVoidFraction

double bedVoidFraction

Catalyst bed void fraction.

catalystBulkDensity

double catalystBulkDensity

Catalyst bulk density in kg/m3 (default alumina-based).

catalystMass

double catalystMass

Catalyst mass in kg.

catalystParticleDiameter

double catalystParticleDiameter

Catalyst particle diameter in mm.

catalystVolume

double catalystVolume

Catalyst volume in m3.

designPressureBara

double designPressureBara

Design pressure in bara.

designPressureMargin

double designPressureMargin

Design pressure margin factor.

designTemperatureC

double designTemperatureC

Design temperature in Celsius.

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating in Celsius.

distributionPlateThickness

double distributionPlateThickness

Distribution plate thickness in mm.

emptyVesselWeight

double emptyVesselWeight

Vessel empty weight in kg (computed).

ghsv

double ghsv

Gas hourly space velocity in 1/hr.

headThickness

double headThickness

Head wall thickness in mm (computed).

lhsv

double lhsv

Liquid hourly space velocity in 1/hr (for liquid-phase reactors).

maxLDRatio

double maxLDRatio

Maximum L/D ratio for vessel.

minLDRatio

double minLDRatio

Minimum L/D ratio for vessel.

numberOfBeds

int numberOfBeds

Number of catalyst beds.

reactorType

String reactorType

Reactor type: "FIXED_BED", "CSTR", "PACKED_BED", "FLUIDIZED_BED".

shellThickness

double shellThickness

Shell wall thickness in mm (computed).

totalEquippedWeight

double totalEquippedWeight

Total equipped weight in kg (computed).

vesselDiameter

double vesselDiameter

Vessel inner diameter in meters (computed).

vesselLength

double vesselLength

Vessel tan-tan length in meters (computed).

Package neqsim.process.mechanicaldesign.separator

Class neqsim.process.mechanicaldesign.separator.GasScrubberMechanicalDesign

class GasScrubberMechanicalDesign extends SeparatorMechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

cycloneDeckElevationM

double cycloneDeckElevationM

Cyclone deck elevation from bottom of vessel [m].

cycloneDpToDrainPct

double cycloneDpToDrainPct

Fraction of cyclone dp to drain chamber [%].

cycloneEulerNumber

double cycloneEulerNumber

Cyclone Euler number (total dp vs rho*v^2).

cycloneLengthM

double cycloneLengthM

Cyclone tube length [m].

demistingCycloneDiameterM

double demistingCycloneDiameterM

Demisting cyclone inner diameter [m].

drainPipeDiameterM

double drainPipeDiameterM

Drain pipe inner diameter [m].

hasDemistingCyclones

boolean hasDemistingCyclones

Whether demisting cyclones are installed.

hasInletCyclones

boolean hasInletCyclones

Whether inlet cyclones are installed.

hasMeshPad

boolean hasMeshPad

Whether mesh pad is installed (above inlet, below cyclones).

hasVanePack

boolean hasVanePack

Whether vane pack is installed.

inletCycloneDiameterM

double inletCycloneDiameterM

Inlet cyclone inner diameter [m].

laHElevationM

double laHElevationM

LA(H) — High level alarm elevation from BTL [m]. Required for cyclone drainage calc.

laHHElevationM

double laHHElevationM

LA(HH) — High-High level alarm elevation from BTL [m].

laLElevationM

double laLElevationM

LA(L) — Low level alarm elevation from BTL [m].

laLLElevationM

double laLLElevationM

LA(LL) — Low-Low level alarm elevation from BTL [m].

meshPadAreaM2

double meshPadAreaM2

Mesh pad area [m2].

meshPadThicknessMm

double meshPadThicknessMm

Mesh pad thickness [mm].

numberOfDemistingCyclones

int numberOfDemistingCyclones

Number of demisting cyclones.

numberOfInletCyclones

int numberOfInletCyclones

Number of inlet cyclones.

vanePackAreaM2

double vanePackAreaM2

Vane pack area [m2].

Class neqsim.process.mechanicaldesign.separator.SeparatorMechanicalDesign

class SeparatorMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

demisterPressureDrop

double demisterPressureDrop

Demister pad pressure drop in mbar.

demisterThickness

double demisterThickness

Demister pad thickness in mm.

demisterType

String demisterType

Demister type: "wire_mesh", "vane_pack", "cyclone".

demisterVoidFraction

double demisterVoidFraction

Wire mesh demister void fraction (typically 0.97-0.99).

demisterWireDiameter

double demisterWireDiameter

Demister pad wire diameter in mm.

designPressureMargin

double designPressureMargin

Design pressure margin factor (e.g., 1.10 for 10% margin).

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating in Celsius.

detailedEntrainmentUsed

boolean detailedEntrainmentUsed

Whether detailed entrainment calculation was used.

dropletDiameterGasLiquid

double dropletDiameterGasLiquid

Design droplet diameter for gas-liquid separation in micrometers.

dropletDiameterLiquidLiquid

double dropletDiameterLiquidLiquid

Design droplet diameter for liquid-liquid separation in micrometers.

effectiveLengthGas

double effectiveLengthGas

Effective length for gas separation/demisting [m].

effectiveLengthLiquid

double effectiveLengthLiquid

Effective length for liquid separation/retention [m].

Fg

double Fg

Gas area fraction (1 - liquid level fraction). Default 0.5 for 50% liquid level.

foamAllowanceFactor

double foamAllowanceFactor

Foam allowance factor for liquid level (1.0 = no foam, 1.5 = 50% foam).

gasCarryUnderCalibrationFactor

double gasCarryUnderCalibrationFactor

Gas carry-under calibration factor.

gasInOilFraction

double gasInOilFraction

Gas-in-oil carry-under fraction (volume basis) [0-1].

gasInWaterFraction

double gasInWaterFraction

Gas-in-water carry-under fraction (volume basis) [0-1].

gasLoadFactor

double gasLoadFactor

Gas load factor (K-factor) for Souders-Brown equation [m/s]. Default 0.107 for mesh demister.

gasOutletNozzleID

double gasOutletNozzleID

Gas outlet nozzle internal diameter [m].

hhllFraction

double hhllFraction

High-High Liquid Level (HHLL) as fraction of ID. Typically ~0.80-0.85.

hilFraction

double hilFraction

High Interface Level (HIL) - oil/water interface.

hllFraction

double hllFraction

High Liquid Level (HLL) as fraction of ID. Typically ~0.70-0.75.

inletDeviceKFactor

double inletDeviceKFactor

Inlet device K-factor reduction (1.0 = no reduction).

inletNozzleID

double inletNozzleID

Inlet nozzle internal diameter [m].

inletToGasDemister

double inletToGasDemister

Distance from inlet to gas demister [m].

inletToPerforatedPlate

double inletToPerforatedPlate

Distance from inlet to perforated plate [m].

kFactorUtilization

double kFactorUtilization

K-factor utilization (actual/design) [0-1].

lilFraction

double lilFraction

Low Interface Level (LIL) - oil/water interface.

liquidInGasCalibrationFactor

double liquidInGasCalibrationFactor

Liquid-in-gas calibration factor.

liquidLiquidCalibrationFactor

double liquidLiquidCalibrationFactor

Liquid-liquid calibration factor.

lllFraction

double lllFraction

Low Liquid Level (LLL) as fraction of ID. Typically ~0.30-0.40.

llllFraction

double llllFraction

Low-Low Liquid Level (LLLL) as fraction of ID. Typically ~0.15-0.20.

maxGasVelocity

double maxGasVelocity

Maximum gas velocity limit in m/s.

maxLiquidVelocity

double maxLiquidVelocity

Maximum liquid outlet velocity in m/s.

minDesignTemperatureC

double minDesignTemperatureC

Minimum design temperature in Celsius (material limit).

minOilRetentionTime

double minOilRetentionTime

Minimum oil retention time in minutes.

minWaterRetentionTime

double minWaterRetentionTime

Minimum water retention time in minutes.

mistEliminatorEfficiency

double mistEliminatorEfficiency

Mist eliminator efficiency [0-1].

mistEliminatorFlooded

boolean mistEliminatorFlooded

Whether the mist eliminator is flooded.

nilFraction

double nilFraction

Normal Interface Level (NIL) - oil/water interface.

nllFraction

double nllFraction

Normal Liquid Level (NLL) as fraction of ID. Typically ~0.50-0.60.

oilInGasFraction

double oilInGasFraction

Oil-in-gas entrainment fraction (volume basis) [0-1].

oilInWaterFraction

double oilInWaterFraction

Oil-in-water entrainment fraction (volume basis) [0-1].

oilOutletNozzleID

double oilOutletNozzleID

Oil outlet nozzle internal diameter [m].

overallGasLiquidEfficiency

double overallGasLiquidEfficiency

Overall gas-liquid separation efficiency [0-1].

perforatedPlateToWeir

double perforatedPlateToWeir

Distance from perforated plate to weir plate [m].

retentionTime

double retentionTime

Liquid retention time in seconds. Default 120s (2 minutes).

volumeSafetyFactor

double volumeSafetyFactor

Volume safety factor for design flow calculations. Default 1.0 (no margin).

waterInGasFraction

double waterInGasFraction

Water-in-gas entrainment fraction (volume basis) [0-1].

waterInOilFraction

double waterInOilFraction

Water-in-oil entrainment fraction (volume basis) [0-1].

waterOutletNozzleID

double waterOutletNozzleID

Water outlet nozzle internal diameter [m].

weirFraction

double weirFraction

Weir height as fraction of ID.

Class neqsim.process.mechanicaldesign.separator.SeparatorMechanicalDesignResponse

class SeparatorMechanicalDesignResponse extends MechanicalDesignResponse implements Serializable

serialVersionUID:

1001L

Serialized Fields

actualGasVelocity

double actualGasVelocity

Actual gas velocity [m/s].

allowableGasVelocity

double allowableGasVelocity

Allowable gas velocity [m/s].

demisterEfficiency

double demisterEfficiency

Demister efficiency.

demisterPressureDrop

double demisterPressureDrop

Demister pressure drop [mbar].

demisterType

String demisterType

Demister type (wire mesh, vane, cyclone).

demisterVoidFraction

double demisterVoidFraction

Demister void fraction.

designCode

String designCode

Design code (ASME VIII Div 1, Div 2).

designGasFlow

double designGasFlow

Design gas flow [Am³/h].

designLiquidFlow

double designLiquidFlow

Design liquid flow [m³/h].

designPressureMarginFactor

double designPressureMarginFactor

Design pressure margin factor.

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin [C].

designWaterFlow

double designWaterFlow

Design water flow (for 3-phase) [m³/h].

detailedEntrainmentUsed

boolean detailedEntrainmentUsed

Whether detailed entrainment calculation was used.

dropletDiameterGasLiquid

double dropletDiameterGasLiquid

Design droplet diameter for gas-liquid separation [um].

dropletDiameterLiquidLiquid

double dropletDiameterLiquidLiquid

Design droplet diameter for liquid-liquid separation [um].

effectiveLengthGas

double effectiveLengthGas

Effective length for gas separation [m].

effectiveLengthLiquid

double effectiveLengthLiquid

Effective length for liquid separation [m].

emptyVesselWeight

double emptyVesselWeight

Empty vessel weight [kg].

foamAllowanceFactor

double foamAllowanceFactor

Foam allowance factor.

gasCarryUnderCalibrationFactor

double gasCarryUnderCalibrationFactor

Gas carry-under calibration factor.

gasDensity

double gasDensity

Gas density [kg/m³].

gasDesignVelocity

double gasDesignVelocity

Gas design velocity [m/s].

gasInOilFraction

double gasInOilFraction

Gas-in-oil carry-under fraction [0-1].

gasInWaterFraction

double gasInWaterFraction

Gas-in-water carry-under fraction [0-1].

gasLoadFactor

double gasLoadFactor

Gas load factor (K-factor).

gasOutletNozzleDiameter

double gasOutletNozzleDiameter

Gas outlet nozzle diameter [mm].

headThickness

double headThickness

Head thickness [mm].

headType

String headType

Head type (hemispherical, 2:1 ellipsoidal, torispherical).

hhll

double hhll

High-High Liquid Level [m].

hhllFraction

double hhllFraction

High-High Liquid Level fraction of ID.

highLiquidLevel

double highLiquidLevel

High liquid level [m].

hil

double hil

High Interface Level [m].

hilFraction

double hilFraction

High Interface Level fraction of ID.

hll

double hll

High Liquid Level [m] - duplicate for explicit naming.

hllFraction

double hllFraction

High Liquid Level fraction of ID.

holdupVolume

double holdupVolume

Liquid holdup volume [m³].

inletNozzleDiameter

double inletNozzleDiameter

Inlet nozzle diameter [mm].

interfaceLevel

double interfaceLevel

Oil-water interface level (for 3-phase) [m].

kFactorUtilization

double kFactorUtilization

K-factor utilization (actual/design) [0-1].

lil

double lil

Low Interface Level [m].

lilFraction

double lilFraction

Low Interface Level fraction of ID.

liquidDensity

double liquidDensity

Liquid density [kg/m³].

liquidInGasCalibrationFactor

double liquidInGasCalibrationFactor

Liquid-in-gas calibration factor.

liquidLevelFraction

double liquidLevelFraction

Liquid level fraction (Fg).

liquidLiquidCalibrationFactor

double liquidLiquidCalibrationFactor

Liquid-liquid calibration factor.

liquidOutletNozzleDiameter

double liquidOutletNozzleDiameter

Liquid outlet nozzle diameter [mm].

lll

double lll

Low Liquid Level [m] - duplicate for explicit naming.

lllFraction

double lllFraction

Low Liquid Level fraction of ID.

lowLiquidLevel

double lowLiquidLevel

Low liquid level [m].

maxGasVelocity

double maxGasVelocity

Maximum gas velocity [m/s].

maxLiquidVelocity

double maxLiquidVelocity

Maximum liquid velocity [m/s].

minOilRetentionTime

double minOilRetentionTime

Minimum oil retention time [min].

minWaterRetentionTime

double minWaterRetentionTime

Minimum water retention time [min].

mistEliminatorEfficiency

double mistEliminatorEfficiency

Mist eliminator efficiency [0-1].

mistEliminatorFlooded

boolean mistEliminatorFlooded

Whether the mist eliminator is flooded.

nil

double nil

Normal Interface Level [m].

nilFraction

double nilFraction

Normal Interface Level fraction of ID.

nll

double nll

Normal Liquid Level [m] - duplicate for explicit naming.

nllFraction

double nllFraction

Normal Liquid Level fraction of ID.

normalLiquidLevel

double normalLiquidLevel

Normal liquid level [m].

numberOfInletNozzles

int numberOfInletNozzles

Number of inlet nozzles.

oilInGasFraction

double oilInGasFraction

Oil-in-gas entrainment fraction [0-1].

oilInWaterFraction

double oilInWaterFraction

Oil-in-water entrainment fraction [0-1].

operatingLiquidVolume

double operatingLiquidVolume

Operating liquid volume [m³].

orientation

String orientation

Separator orientation (horizontal, vertical).

overallGasLiquidEfficiency

double overallGasLiquidEfficiency

Overall gas-liquid separation efficiency [0-1].

retentionTime

double retentionTime

Liquid retention time [s].

separatorType

String separatorType

Separator type (two-phase, three-phase, test separator).

shellThickness

double shellThickness

Shell course thickness [mm].

surgeVolume

double surgeVolume

Liquid surge volume [m³].

volumeSafetyFactor

double volumeSafetyFactor

Volumetric design safety factor.

waterInGasFraction

double waterInGasFraction

Water-in-gas entrainment fraction [0-1].

waterInOilFraction

double waterInOilFraction

Water-in-oil entrainment fraction [0-1].

waterOutletNozzleDiameter

double waterOutletNozzleDiameter

Water outlet nozzle diameter (for 3-phase) [mm].

weirFraction

double weirFraction

Weir height fraction of ID.

weirHeight

double weirHeight

Weir height [m].

Package neqsim.process.mechanicaldesign.separator.conformity

Class neqsim.process.mechanicaldesign.separator.conformity.ConformityReport

class ConformityReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentName

String equipmentName

results

List<ConformityResult> results

standard

String standard

Class neqsim.process.mechanicaldesign.separator.conformity.ConformityResult

class ConformityResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualValue

double actualValue

checkName

String checkName

description

String description

direction

ConformityResult.LimitDirection direction

internalType

String internalType

limitValue

double limitValue

standard

String standard

status

ConformityResult.Status status

unit

String unit

Class neqsim.process.mechanicaldesign.separator.conformity.ConformityRuleSet

class ConformityRuleSet extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

Package neqsim.process.mechanicaldesign.separator.internals

Class neqsim.process.mechanicaldesign.separator.internals.DemistingInternal

class DemistingInternal extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

area

double area

Cross-sectional area available for gas flow [m2].

euNumber

double euNumber

Euler number used for pressure drop calculation [-].

kFactor

double kFactor

Souders-Brown K-factor for maximum allowable gas velocity [m/s]. Typical values: wire mesh 0.05-0.12, vane pack 0.10-0.20, cyclone 0.15-0.30.

name

String name

Name identifier for this internal.

thickness

double thickness

Thickness of the demisting pad [m].

type

String type

Demister type: "wire_mesh", "vane_pack", or "cyclone".

voidFraction

double voidFraction

Void fraction of the demisting element [-].

wireDiameter

double wireDiameter

Wire diameter for wire mesh type [m].

Class neqsim.process.mechanicaldesign.separator.internals.DemistingInternalWithDrainage

class DemistingInternalWithDrainage extends DemistingInternal implements Serializable

serialVersionUID:

1000L

Serialized Fields

drainageEfficiency

double drainageEfficiency

Drainage efficiency [0..1]. Fraction of re-entrained liquid captured by the drainage section. Typical values: 0.3–0.7 depending on drainage design and liquid load.

Package neqsim.process.mechanicaldesign.separator.primaryseparation

Class neqsim.process.mechanicaldesign.separator.primaryseparation.InletCyclones

class InletCyclones extends PrimarySeparation implements Serializable

serialVersionUID:

1000L

Serialized Fields

cycloneDiameter

double cycloneDiameter

Individual cyclone tube diameter [m].

numberOfCyclones

int numberOfCyclones

Number of cyclone tubes in the inlet cluster.

Class neqsim.process.mechanicaldesign.separator.primaryseparation.InletVane

class InletVane extends PrimarySeparation implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.separator.primaryseparation.InletVaneWithMeshpad

class InletVaneWithMeshpad extends PrimarySeparation implements Serializable

serialVersionUID:

1000L

Serialized Fields

meshPadKFactor

double meshPadKFactor

K-factor for the downstream mesh pad [m/s].

Class neqsim.process.mechanicaldesign.separator.primaryseparation.PrimarySeparation

class PrimarySeparation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bulkSeparationEfficiency

double bulkSeparationEfficiency

Liquid bulk separation efficiency at the inlet [0..1].

inletNozzleDiameter

double inletNozzleDiameter

Inlet nozzle internal diameter [m].

maxInletMomentum

double maxInletMomentum

Maximum allowable inlet momentum rho*v^2 [Pa].

name

String name

Name of the inlet device.

Package neqsim.process.mechanicaldesign.splitter

Class neqsim.process.mechanicaldesign.splitter.SplitterMechanicalDesign

class SplitterMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

branchDiameter

double branchDiameter

Branch connection diameter [m].

designStandardCode

String designStandardCode

Design standard code.

designVelocity

double designVelocity

Design velocity in header [m/s].

headerDiameter

double headerDiameter

Header internal diameter [m].

headerLength

double headerLength

Header length [m].

headerWallThickness

double headerWallThickness

Header wall thickness [mm].

manifoldVolume

double manifoldVolume

Distribution manifold volume [m3].

materialGrade

String materialGrade

Material grade for construction.

maxAllowableVelocity

double maxAllowableVelocity

Maximum allowable velocity [m/s].

numberOfBranches

int numberOfBranches

Number of outlet branches.

splitRatios

double[] splitRatios

Split ratios for each branch.

splitterType

String splitterType

Splitter type (tee, wye, header, manifold).

totalPressureDrop

double totalPressureDrop

Total pressure drop [bar].

Package neqsim.process.mechanicaldesign.subsea

Class neqsim.process.mechanicaldesign.subsea.BarrierElement

class BarrierElement extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

depthMD

double depthMD

Depth of element in meters MD (0 for surface elements).

description

String description

Description or notes about the element.

name

String name

Element name/identifier.

status

BarrierElement.Status status

Functional status.

type

BarrierElement.ElementType type

The element type.

verified

boolean verified

Whether this element has been verified (tested).

Class neqsim.process.mechanicaldesign.subsea.BarrierEnvelope

class BarrierEnvelope extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

elements

List<BarrierElement> elements

Ordered list of barrier elements forming this envelope.

name

String name

Envelope name (e.g., "Primary", "Secondary").

Class neqsim.process.mechanicaldesign.subsea.FlexiblePipeMechanicalDesign

class FlexiblePipeMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculatedMBR

double calculatedMBR

Calculated minimum bend radius in meters.

carcassThickness

double carcassThickness

Carcass thickness in mm.

designLife

int designLife

Design life in years.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

fatigueLifeCycles

double fatigueLifeCycles

Fatigue life cycles.

flexPipe

FlexiblePipe flexPipe

Reference to flexible pipe equipment.

installationCostUSD

double installationCostUSD

Installation cost in USD.

internalSheathThickness

double internalSheathThickness

Internal sheath thickness in mm.

pressureArmorThickness

double pressureArmorThickness

Pressure armor thickness in mm.

requiredBurstPressure

double requiredBurstPressure

Required burst pressure in bar.

requiredCollapsePressure

double requiredCollapsePressure

Required collapse pressure in bar.

requiredTensileCapacity

double requiredTensileCapacity

Required tensile capacity in kN.

storageMBR

double storageMBR

Storage bend radius in meters.

tensileArmorWireSize

double tensileArmorWireSize

Tensile armor wire size in mm.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.PLEMMechanicalDesign

class PLEMMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

headerWallThickness

double headerWallThickness

Header wall thickness in mm.

installationCostUSD

double installationCostUSD

Installation cost in USD.

plem

PLEM plem

Reference to PLEM equipment.

requiredFoundationWeight

double requiredFoundationWeight

Required foundation weight in tonnes.

requiredMudmatArea

double requiredMudmatArea

Required mudmat area in m².

structureMaterialGrade

String structureMaterialGrade

Material grade for structure.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.PLETMechanicalDesign

class PLETMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

connectorLoadCapacity

double connectorLoadCapacity

Connector load capacity in kN.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

hubMaterialGrade

String hubMaterialGrade

Hub material grade.

hubWallThickness

double hubWallThickness

Hub wall thickness in mm.

installationCostUSD

double installationCostUSD

Installation cost in USD.

maxBearingPressure

double maxBearingPressure

Maximum allowable bearing pressure in kPa.

pileDepth

double pileDepth

Calculated pile penetration in meters.

plet

PLET plet

Reference to PLET equipment.

requiredFoundationWeight

double requiredFoundationWeight

Required foundation weight in tonnes.

requiredMudmatArea

double requiredMudmatArea

Required mudmat area in m².

structureMaterialGrade

String structureMaterialGrade

Material grade for structure.

suctionAnchorDiameter

double suctionAnchorDiameter

Calculated suction anchor diameter in meters.

totalCostUSD

double totalCostUSD

Total project cost in USD.

totalManhours

double totalManhours

Total manhours.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.SubseaBoosterMechanicalDesign

class SubseaBoosterMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

bearingLife

double bearingLife

Bearing life in hours.

booster

SubseaBooster booster

Reference to booster equipment.

calculatedHead

double calculatedHead

Pump/compressor head in meters or pressure ratio.

coolingCapacity

double coolingCapacity

Required cooling capacity in kW.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

foundationArea

double foundationArea

Module foundation area in m².

housingWallThickness

double housingWallThickness

Housing wall thickness in mm.

installationCostUSD

double installationCostUSD

Installation cost in USD.

requiredMotorPower

double requiredMotorPower

Required motor power in MW.

sealLife

double sealLife

Seal life in hours.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.SubseaJumperMechanicalDesign

class SubseaJumperMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

allowableStress

double allowableStress

Allowable stress in MPa.

bendRadiusOK

boolean bendRadiusOK

Minimum bend radius check.

combinedStress

double combinedStress

Combined stress in MPa.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

hoopStress

double hoopStress

Hoop stress in MPa.

hubStress

double hubStress

Hub connection stress in MPa.

installationCostUSD

double installationCostUSD

Installation cost in USD.

jumper

SubseaJumper jumper

Reference to jumper equipment.

requiredWallThickness

double requiredWallThickness

Required wall thickness in mm.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

unityCheck

double unityCheck

Unity check (stress ratio).

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.SubseaManifoldMechanicalDesign

class SubseaManifoldMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

headerMaterialGrade

String headerMaterialGrade

Header material grade.

installationCostUSD

double installationCostUSD

Installation cost in USD.

manifold

SubseaManifold manifold

Reference to manifold equipment.

pipingWeight

double pipingWeight

Piping weight in tonnes.

productionHeaderWallThickness

double productionHeaderWallThickness

Production header wall thickness in mm.

requiredFoundationWeight

double requiredFoundationWeight

Required foundation weight in tonnes.

requiredMudmatArea

double requiredMudmatArea

Required mudmat area in m².

structureMaterialGrade

String structureMaterialGrade

Material grade for structure.

structureWeight

double structureWeight

Structure weight in tonnes.

testHeaderWallThickness

double testHeaderWallThickness

Test header wall thickness in mm.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

valvesWeight

double valvesWeight

Valves weight in tonnes.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.SubseaTreeMechanicalDesign

class SubseaTreeMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

actuatorForce

double actuatorForce

Actuator force required in kN.

blockWallThickness

double blockWallThickness

Tree block wall thickness in mm.

boreWallThickness

double boreWallThickness

Bore wall thickness in mm.

connectorCapacity

double connectorCapacity

Connector capacity in kN.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

installationCostUSD

double installationCostUSD

Installation cost in USD.

testPressure

double testPressure

Required test pressure in bar.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalManhours

double totalManhours

Total manhours.

totalValveCv

double totalValveCv

Valve Cv total.

tree

SubseaTree tree

Reference to tree equipment.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.UmbilicalMechanicalDesign

class UmbilicalMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculatedMinBendRadius

double calculatedMinBendRadius

Minimum bend radius in meters.

calculatedOuterDiameter

double calculatedOuterDiameter

Calculated outer diameter in mm.

chemicalTubeWallThickness

double chemicalTubeWallThickness

Chemical tube wall thickness in mm.

designStandardCode

String designStandardCode

Design standard code.

equipmentCostUSD

double equipmentCostUSD

Equipment cost in USD.

hydraulicTubeWallThickness

double hydraulicTubeWallThickness

Hydraulic tube wall thickness in mm.

installationCostUSD

double installationCostUSD

Installation cost in USD.

maxAllowableTension

double maxAllowableTension

Maximum allowable tension in kN.

requiredArmorLayers

int requiredArmorLayers

Required armor layers.

totalCostUSD

double totalCostUSD

Total estimated cost in USD.

totalCrossSection

double totalCrossSection

Total cross-section area in mm².

totalManhours

double totalManhours

Total manhours.

umbilical

Umbilical umbilical

Reference to umbilical equipment.

vesselDays

double vesselDays

Vessel days required.

Class neqsim.process.mechanicaldesign.subsea.WellBarrierSchematic

class WellBarrierSchematic extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annulusMonitoringRequired

boolean annulusMonitoringRequired

Whether annulus pressure monitoring is required.

appliedStandards

List<String> appliedStandards

Applied standards references.

dhsvRequired

boolean dhsvRequired

Whether DHSV is required (producers).

issues

List<String> issues

Validation issues found.

isvRequired

boolean isvRequired

Whether ISV is required (injectors per NORSOK D-010 Table 36).

minPrimaryElements

int minPrimaryElements

Minimum elements per envelope (loaded from standards).

minSecondaryElements

int minSecondaryElements

Minimum elements for secondary envelope.

passed

boolean passed

Validation passed flag.

primaryEnvelope

BarrierEnvelope primaryEnvelope

Primary barrier envelope.

secondaryEnvelope

BarrierEnvelope secondaryEnvelope

Secondary barrier envelope.

wellType

String wellType

Well type string (e.g. "OIL_PRODUCER", "WATER_INJECTOR").

Class neqsim.process.mechanicaldesign.subsea.WellDesignCalculator

class WellDesignCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

conductorDepth

double conductorDepth

Conductor depth in meters MD.

conductorOD

double conductorOD

Conductor OD in inches.

injectionWell

boolean injectionWell

Whether this is an injection well (changes load cases).

intermediateCasingDepth

double intermediateCasingDepth

Intermediate casing depth in meters MD.

intermediateCasingOD

double intermediateCasingOD

Intermediate casing OD in inches.

intermediateCasingWallThickness

double intermediateCasingWallThickness

Intermediate casing wall thickness in mm.

maxBottomholeTemperature

double maxBottomholeTemperature

Max bottomhole temperature in Celsius.

maxWellheadPressure

double maxWellheadPressure

Max wellhead pressure in bara.

measuredDepth

double measuredDepth

Measured depth in meters.

minBurstDF

double minBurstDF

Minimum burst design factor (default: NORSOK D-010 Table 18).

minCollapseDF

double minCollapseDF

Minimum collapse design factor (default: NORSOK D-010 Table 18).

minTensionDF

double minTensionDF

Minimum tension design factor (default: NORSOK D-010 Table 18).

minVmeDF

double minVmeDF

Minimum triaxial (von Mises Equivalent) design factor per NORSOK D-010.

productionCasingBurstDF

double productionCasingBurstDF

Production casing burst design factor.

productionCasingCollapseDF

double productionCasingCollapseDF

Production casing collapse design factor.

productionCasingDepth

double productionCasingDepth

Production casing depth in meters MD.

productionCasingOD

double productionCasingOD

Production casing OD in inches.

productionCasingTensionDF

double productionCasingTensionDF

Production casing tension design factor.

productionCasingVME_DF

double productionCasingVME_DF

Production casing VME (triaxial) design factor.

productionCasingWallThickness

double productionCasingWallThickness

Production casing wall thickness in mm.

productionLinerDepth

double productionLinerDepth

Production liner depth in meters MD.

productionLinerOD

double productionLinerOD

Production liner OD in inches.

reservoirPressure

double reservoirPressure

Reservoir pressure in bara.

reservoirTemperature

double reservoirTemperature

Reservoir temperature in Celsius.

surfaceCasingDepth

double surfaceCasingDepth

Surface casing depth in meters MD.

surfaceCasingOD

double surfaceCasingOD

Surface casing OD in inches.

surfaceCasingWallThickness

double surfaceCasingWallThickness

Surface casing wall thickness in mm.

temperatureDeratingFactor

double temperatureDeratingFactor

Temperature derating factor applied to production casing (0-1).

totalCasingWeight

double totalCasingWeight

Total casing weight in tonnes.

totalCementVolume

double totalCementVolume

Total cement volume in m3.

totalCuttingsVolume

double totalCuttingsVolume

Total cuttings volume in m3.

totalTubingWeight

double totalTubingWeight

Total tubing weight in tonnes.

trueVerticalDepth

double trueVerticalDepth

True vertical depth in meters.

tubingBurstDF

double tubingBurstDF

Tubing burst design factor.

tubingGrade

String tubingGrade

Tubing grade.

tubingOD

double tubingOD

Tubing OD in inches.

tubingWallThickness

double tubingWallThickness

Tubing wall thickness in mm.

tubingWeight

double tubingWeight

Tubing weight in lb/ft.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.mechanicaldesign.subsea.WellMechanicalDesign

class WellMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

barrierIssueCount

int barrierIssueCount

Number of barrier issues.

barrierNotes

List<String> barrierNotes

Barrier verification notes.

barrierSchematic

WellBarrierSchematic barrierSchematic

Well barrier schematic for NORSOK D-010 validation.

barrierVerificationPassed

boolean barrierVerificationPassed

Well barrier verification result (pass/fail).

completionCostUSD

double completionCostUSD

Completion cost in USD.

designStandardCode

String designStandardCode

Design standard code.

drillingCostUSD

double drillingCostUSD

Drilling cost in USD.

intermediateCasingWallThickness

double intermediateCasingWallThickness

Intermediate casing required wall thickness in mm.

loggingCostUSD

double loggingCostUSD

Logging and testing cost in USD.

materialCostUSD

double materialCostUSD

Material cost (casing, cement, mud) in USD.

productionCasingBurstDF

double productionCasingBurstDF

Production casing burst design factor.

productionCasingCollapseDF

double productionCasingCollapseDF

Production casing collapse design factor.

productionCasingTensionDF

double productionCasingTensionDF

Production casing tension design factor.

productionCasingVME_DF

double productionCasingVME_DF

Production casing VME (triaxial) design factor per NORSOK D-010.

productionCasingWallThickness

double productionCasingWallThickness

Production casing required wall thickness in mm.

surfaceCasingWallThickness

double surfaceCasingWallThickness

Surface casing required wall thickness in mm.

temperatureDeratingFactor

double temperatureDeratingFactor

Temperature derating factor applied per API 5CT / API TR 5C3.

totalCasingWeight

double totalCasingWeight

Total casing weight in tonnes.

totalCementVolume

double totalCementVolume

Total cement volume in m3.

totalCostUSD

double totalCostUSD

Total well cost in USD.

totalCuttingsVolume

double totalCuttingsVolume

Total drill cuttings volume in m3.

totalTubingWeight

double totalTubingWeight

Total tubing weight in tonnes.

tubingBurstDF

double tubingBurstDF

Tubing burst design factor.

tubingWallThickness

double tubingWallThickness

Tubing required wall thickness in mm.

well

SubseaWell well

Reference to well equipment.

wellheadCostUSD

double wellheadCostUSD

Wellhead cost in USD.

Class neqsim.process.mechanicaldesign.subsea.WellMechanicalDesignDataSource

class WellMechanicalDesignDataSource extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

appliedStandards

List<String> appliedStandards

Applied standards tracking for JSON reporting.

Package neqsim.process.mechanicaldesign.tank

Class neqsim.process.mechanicaldesign.tank.TankMechanicalDesign

class TankMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

appurtenancesWeight

double appurtenancesWeight

Appurtenances weight (nozzles, manholes, etc.) [kg].

bottomThickness

double bottomThickness

Bottom plate thickness [mm].

bottomWeight

double bottomWeight

Bottom weight [kg].

courseHeight

double courseHeight

Shell course height [m] - typically 2.4m (8 ft).

designLiquidLevel

double designLiquidLevel

Design liquid level [m].

designPressure

double designPressure

Design pressure [bara].

designSpecificGravity

double designSpecificGravity

Design specific gravity.

designTemperature

double designTemperature

Design temperature [°C].

foundationLoad

double foundationLoad

Foundation load (tank + contents) [kN].

hasFloatingRoof

boolean hasFloatingRoof

Has floating roof.

nominalCapacity

double nominalCapacity

Tank capacity [m³].

numberOfCourses

int numberOfCourses

Number of shell courses.

numberOfManholes

int numberOfManholes

Number of manholes.

numberOfNozzles

int numberOfNozzles

Number of shell nozzles.

roofThickness

double roofThickness

Roof plate thickness [mm].

roofType

TankMechanicalDesign.RoofType roofType

Roof type.

roofWeight

double roofWeight

Roof weight [kg].

shellThicknesses

double[] shellThicknesses

Shell thicknesses by course [mm].

shellWeight

double shellWeight

Shell weight [kg].

structuralWeight

double structuralWeight

Structural weight (wind girders, rafters, columns) [kg].

tankDiameter

double tankDiameter

Tank nominal diameter [m].

tankHeight

double tankHeight

Tank height (shell height) [m].

tankType

TankMechanicalDesign.TankType tankType

Tank type.

workingCapacity

double workingCapacity

Working capacity [m³].

Package neqsim.process.mechanicaldesign.torg

Class neqsim.process.mechanicaldesign.torg.TechnicalRequirementsDocument

class TechnicalRequirementsDocument extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

companyIdentifier

String companyIdentifier

Company or operator identifier.

customParameters

Map<String,Object> customParameters

Additional project-specific parameters.

designStandards

Map<String, List<StandardType>> designStandards

Map of design category to list of applicable standards.

environmentalConditions

TechnicalRequirementsDocument.EnvironmentalConditions environmentalConditions

Environmental design conditions.

equipmentStandards

Map<String, List<StandardType>> equipmentStandards

Map of equipment type to specific standards (overrides category defaults).

issueDate

String issueDate

Date of issue (ISO format YYYY-MM-DD).

materialSpecs

TechnicalRequirementsDocument.MaterialSpecifications materialSpecs

Material specifications.

projectId

String projectId

Project identifier.

projectName

String projectName

Project name/description.

revision

String revision

TORG document revision/version.

safetyFactors

TechnicalRequirementsDocument.SafetyFactors safetyFactors

Safety factors for various calculations.

Class neqsim.process.mechanicaldesign.torg.TechnicalRequirementsDocument.EnvironmentalConditions

class EnvironmentalConditions extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

designSeawaterTemperature

double designSeawaterTemperature

location

String location

maxAmbientTemperature

double maxAmbientTemperature

minAmbientTemperature

double minAmbientTemperature

seismicZone

String seismicZone

waveHeight

double waveHeight

windSpeed

double windSpeed

Class neqsim.process.mechanicaldesign.torg.TechnicalRequirementsDocument.MaterialSpecifications

class MaterialSpecifications extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

defaultPipeMaterial

String defaultPipeMaterial

defaultPlateMaterial

String defaultPlateMaterial

materialStandard

String materialStandard

maxDesignTemperature

double maxDesignTemperature

minDesignTemperature

double minDesignTemperature

requireImpactTesting

boolean requireImpactTesting

Class neqsim.process.mechanicaldesign.torg.TechnicalRequirementsDocument.SafetyFactors

class SafetyFactors extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

corrosionAllowance

double corrosionAllowance

loadFactor

double loadFactor

pressureSafetyFactor

double pressureSafetyFactor

temperatureSafetyMargin

double temperatureSafetyMargin

wallThicknessTolerance

double wallThicknessTolerance

Package neqsim.process.mechanicaldesign.valve

Class neqsim.process.mechanicaldesign.valve.ControlValveSizing

class ControlValveSizing extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

allowChoked

boolean allowChoked

valveMechanicalDesign

ValveMechanicalDesign valveMechanicalDesign

xT

double xT

Class neqsim.process.mechanicaldesign.valve.ControlValveSizing_IEC_60534

class ControlValveSizing_IEC_60534 extends ControlValveSizing implements Serializable

serialVersionUID:

1L

Serialized Fields

allowLaminar

boolean allowLaminar

d

double d

D1

double D1

D2

double D2

Fd

double Fd

FD

double FD

FL

double FL

fullOutput

boolean fullOutput

Class neqsim.process.mechanicaldesign.valve.ControlValveSizing_IEC_60534_full

class ControlValveSizing_IEC_60534_full extends ControlValveSizing_IEC_60534 implements Serializable

serialVersionUID:

1L

Serialized Fields

isFullTrim

boolean isFullTrim

Class neqsim.process.mechanicaldesign.valve.ControlValveSizing_MultiphaseChoke

class ControlValveSizing_MultiphaseChoke extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

allowChoked

boolean allowChoked

Whether choked (critical) flow is allowed.

chokeDiameter

double chokeDiameter

Choke diameter in meters.

chokeModel

MultiphaseChokeFlow chokeModel

The multiphase choke flow model.

modelType

String modelType

Model type name for reporting.

valveMechanicalDesign

ValveMechanicalDesign valveMechanicalDesign

The valve mechanical design object.

xT

double xT

Pressure drop ratio factor for choked flow (not used for choke models but required).

Class neqsim.process.mechanicaldesign.valve.ControlValveSizing_simple

class ControlValveSizing_simple extends ControlValveSizing implements Serializable

serialVersionUID:

1L

Serialized Fields

Cd

double Cd

Discharge coefficient for production chokes (typical value).

Class neqsim.process.mechanicaldesign.valve.EqualPercentageCharacteristic

class EqualPercentageCharacteristic extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

rangeability

double rangeability

The rangeability of the valve, defined as Cv_max / Cv_min. Typical values are 50:1 for standard valves and up to 100:1 for high-performance valves.

Class neqsim.process.mechanicaldesign.valve.LinearCharacteristic

class LinearCharacteristic extends Object implements Serializable

serialVersionUID:

1L

Class neqsim.process.mechanicaldesign.valve.ModifiedParabolicCharacteristic

class ModifiedParabolicCharacteristic extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

exponent

double exponent

The exponent for the parabolic curve. Default is 2.0 for standard parabolic. Values between 1.5 and 2.5 are common for modified parabolic characteristics.

Class neqsim.process.mechanicaldesign.valve.QuickOpeningCharacteristic

class QuickOpeningCharacteristic extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.mechanicaldesign.valve.SafetyValveMechanicalDesign

class SafetyValveMechanicalDesign extends ValveMechanicalDesign implements Serializable

serialVersionUID:

1L

Serialized Fields

controllingOrificeArea

double controllingOrificeArea

controllingScenarioName

String controllingScenarioName

orificeArea

double orificeArea

strategies

Map<SafetyValve.FluidService, SafetyValveMechanicalDesign.SafetyValveSizingStrategy> strategies

Class neqsim.process.mechanicaldesign.valve.ValveMechanicalDesign

class ValveMechanicalDesign extends MechanicalDesign implements Serializable

serialVersionUID:

1000L

Serialized Fields

actuatorWeight

double actuatorWeight

Actuator weight [kg].

allowChoked

boolean allowChoked

allowLaminar

boolean allowLaminar

ansiPressureClass

int ansiPressureClass

ANSI pressure class (150, 300, 600, 900, 1500, 2500).

bodyWallThickness

double bodyWallThickness

Valve body wall thickness [mm].

bodyWeight

double bodyWeight

Valve body weight [kg].

designPressure

double designPressure

Design pressure [bara].

designTemperature

double designTemperature

Design temperature [C].

diameter

double diameter

diameterInlet

double diameterInlet

diameterOutlet

double diameterOutlet

dP

double dP

faceToFace

double faceToFace

Face-to-face dimension [mm].

FD

double FD

FL

double FL

flangeType

String flangeType

Flange connection type.

fullOutput

boolean fullOutput

inletPressure

double inletPressure

nominalSizeInches

double nominalSizeInches

Valve body nominal size in inches.

outletPressure

double outletPressure

requiredActuatorThrust

double requiredActuatorThrust

Required actuator thrust [N].

stemDiameter

double stemDiameter

Valve stem diameter [mm].

valveCharacterization

String valveCharacterization

valveCharacterizationMethod

ValveCharacteristic valveCharacterizationMethod

valveCvMax

double valveCvMax

valveSizingMethod

ControlValveSizingInterface valveSizingMethod

valveSizingStandard

String valveSizingStandard

valveType

String valveType

Valve type description.

valveWeight

double valveWeight

xT

double xT

Class neqsim.process.mechanicaldesign.valve.ValveMechanicalDesignResponse

class ValveMechanicalDesignResponse extends MechanicalDesignResponse implements Serializable

serialVersionUID:

1001L

Serialized Fields

actuatorType

String actuatorType

Actuator type (pneumatic, electric, hydraulic, manual).

actuatorWeight

double actuatorWeight

Actuator weight [kg].

ansiPressureClass

int ansiPressureClass

ANSI pressure class (150, 300, 600, 900, 1500, 2500).

bodyWallThickness

double bodyWallThickness

Body wall thickness [mm].

bodyWeight

double bodyWeight

Body weight [kg].

cavitationIndex

double cavitationIndex

Cavitation index.

cvMax

double cvMax

Maximum valve Cv at full open.

cvRequired

double cvRequired

Required valve Cv.

faceToFace

double faceToFace

Face-to-face dimension [mm].

flangeType

String flangeType

Flange type (RF, RTJ, FF).

flFactor

double flFactor

Pressure recovery factor (FL).

flowRegime

String flowRegime

Flow regime (subcritical, critical, choked).

inletPressure

double inletPressure

Inlet pressure [bara].

isChoked

boolean isChoked

Is flow choked?

kv

double kv

Calculated Kv (metric flow coefficient).

massFlowRate

double massFlowRate

Mass flow rate [kg/h].

noiseLevel

double noiseLevel

Noise level [dBA].

nominalSizeInches

double nominalSizeInches

Nominal valve size [inches].

outletPressure

double outletPressure

Outlet pressure [bara].

pressureDrop

double pressureDrop

Pressure drop [bar].

requiredActuatorThrust

double requiredActuatorThrust

Required actuator thrust [N].

stemDiameter

double stemDiameter

Stem diameter [mm].

valveCharacteristic

String valveCharacteristic

Valve characteristic (linear, equal percentage, quick opening).

valveOpening

double valveOpening

Valve opening percentage at design point.

valveType

String valveType

Valve type (globe, ball, butterfly, gate, plug).

volumetricFlowRate

double volumetricFlowRate

Volumetric flow rate [m³/h].

xtFactor

double xtFactor

Pressure ratio factor (xT).

Package neqsim.process.mechanicaldesign.valve.choke

Class neqsim.process.mechanicaldesign.valve.choke.GilbertChokeFlow

class GilbertChokeFlow extends MultiphaseChokeFlow implements Serializable

serialVersionUID:

1L

Serialized Fields

correlationConstant

double correlationConstant

Correlation constant (Gilbert = 10, Baxendell = 9.56, Ros = 17.4, Achong = 3.82).

correlationType

GilbertChokeFlow.CorrelationType correlationType

diameterExponent

double diameterExponent

Diameter exponent (Gilbert = 1.89, Baxendell = 1.93, Ros = 2.0, Achong = 1.88).

glrExponent

double glrExponent

GLR exponent (Gilbert = 0.546, Baxendell = 0.546, Ros = 0.5, Achong = 0.65).

Class neqsim.process.mechanicaldesign.valve.choke.MultiphaseChokeFlow

class MultiphaseChokeFlow extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

chokeDiameter

double chokeDiameter

Choke throat diameter in meters.

dischargeCoefficient

double dischargeCoefficient

Discharge coefficient for the choke (typically 0.75-0.90).

polytropicExponent

double polytropicExponent

Polytropic exponent for gas expansion (1.0 = isothermal, gamma = isentropic).

upstreamDiameter

double upstreamDiameter

Upstream pipe diameter in meters.

Class neqsim.process.mechanicaldesign.valve.choke.SachdevaChokeFlow

class SachdevaChokeFlow extends MultiphaseChokeFlow implements Serializable

serialVersionUID:

1L

Package neqsim.process.mechanicaldesign.watertreatment

Class neqsim.process.mechanicaldesign.watertreatment.HydrocycloneMechanicalDesign

class HydrocycloneMechanicalDesign extends SeparatorMechanicalDesign implements Serializable

serialVersionUID:

1001L

Serialized Fields

allowableStressMPa

double allowableStressMPa

Material allowable stress at design temperature (MPa). SA-316L typical.

corrosionAllowanceMm

double corrosionAllowanceMm

Corrosion allowance for produced water service (mm).

designCode

String designCode

Design code reference.

designPressureBarg

double designPressureBarg

Design pressure (barg).

designPressureMarginFactor

double designPressureMarginFactor

Design pressure margin factor (e.g. 1.10 for 10% above max operating).

designTemperatureHighC

double designTemperatureHighC

Design temperature high (Celsius).

designTemperatureLowC

double designTemperatureLowC

Design temperature low (Celsius).

designTemperatureMarginC

double designTemperatureMarginC

Design temperature margin above max operating (Celsius).

emptyVesselWeightKg

double emptyVesselWeightKg

Empty vessel weight per vessel (kg).

headThicknessMm

double headThicknessMm

Head thickness (mm).

headType

String headType

Head type for vessel ends.

inletNozzleIdMm

double inletNozzleIdMm

Inlet nozzle ID (mm).

linerDiameterMm

double linerDiameterMm

Liner diameter (mm).

linersPerVessel

int linersPerVessel

Number of active liners per vessel.

linerWeightPerVesselKg

double linerWeightPerVesselKg

Total liner insert weight per vessel (kg).

materialGrade

String materialGrade

Material grade designation.

maxInletVelocity

double maxInletVelocity

Maximum inlet nozzle velocity (m/s). API RP 14E erosional limit.

maxOverflowVelocity

double maxOverflowVelocity

Maximum overflow (clean water) nozzle velocity (m/s).

maxRejectVelocity

double maxRejectVelocity

Maximum reject (oil-rich) nozzle velocity (m/s).

minDesignTemperatureC

double minDesignTemperatureC

Minimum design temperature (Celsius), material-driven.

numberOfVessels

int numberOfVessels

Number of vessels.

operatingPressureBarg

double operatingPressureBarg

Operating pressure (barg).

operatingTemperatureC

double operatingTemperatureC

Operating temperature (Celsius).

overflowNozzleIdMm

double overflowNozzleIdMm

Overflow (clean water) nozzle ID (mm).

rejectNozzleIdMm

double rejectNozzleIdMm

Reject (oil-rich) nozzle ID (mm).

spareLiners

int spareLiners

Number of spare liners.

totalActiveLiners

int totalActiveLiners

Total number of active liners.

vesselInnerDiameterM

double vesselInnerDiameterM

Vessel inner diameter (m) per vessel.

vesselJointEfficiency

double vesselJointEfficiency

Joint efficiency for welded vessel (1.0 = full radiography).

vesselLengthM

double vesselLengthM

Vessel tangent-to-tangent length (m).

vesselWallThicknessMm

double vesselWallThicknessMm

Vessel wall thickness (mm), calculated.

Package neqsim.process.ml

Class neqsim.process.ml.ActionVector

class ActionVector extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lowerBounds

Map<String,Double> lowerBounds

units

Map<String,String> units

upperBounds

Map<String,Double> upperBounds

values

Map<String,Double> values

Class neqsim.process.ml.Constraint

class Constraint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

Constraint.Category category

currentValue

double currentValue

description

String description

lowerBound

double lowerBound

name

String name

type

Constraint.Type type

unit

String unit

upperBound

double upperBound

variableName

String variableName

violated

boolean violated

Class neqsim.process.ml.ConstraintManager

class ConstraintManager extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraints

Map<String, Constraint> constraints

Class neqsim.process.ml.EpisodeRunner

class EpisodeRunner extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

environment

GymEnvironment environment

printInterval

int printInterval

verbose

boolean verbose

Class neqsim.process.ml.EpisodeRunner.BenchmarkResult

class BenchmarkResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

controllerName

String controllerName

Controller name.

maxReward

double maxReward

Max reward.

meanLength

double meanLength

Mean episode length.

meanReward

double meanReward

Mean total reward.

minReward

double minReward

Min reward.

numEpisodes

int numEpisodes

Number of episodes.

stdReward

double stdReward

Standard deviation of reward.

successRate

double successRate

Success rate (completed without termination).

Class neqsim.process.ml.EpisodeRunner.EpisodeResult

class EpisodeResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actions

List<double[]> actions

History of actions.

finalObservation

double[] finalObservation

Final observation.

observations

List<double[]> observations

History of observations.

rewards

List<Double> rewards

History of rewards.

steps

int steps

Number of steps taken.

terminated

boolean terminated

Whether episode terminated (vs truncated).

totalReward

double totalReward

Total reward accumulated.

Class neqsim.process.ml.EquipmentStateAdapter

class EquipmentStateAdapter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipment

ProcessEquipmentInterface equipment

Class neqsim.process.ml.GymEnvironment

class GymEnvironment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionDim

int actionDim

actionHigh

double[] actionHigh

actionLow

double[] actionLow

Action space bounds.

currentStep

int currentStep

Episode state.

envId

String envId

Environment metadata.

episodeReward

double episodeReward

maxEpisodeSteps

int maxEpisodeSteps

observationDim

int observationDim

observationHigh

double[] observationHigh

observationLow

double[] observationLow

Observation space bounds.

rewardThreshold

double rewardThreshold

terminated

boolean terminated

truncated

boolean truncated

Class neqsim.process.ml.GymEnvironment.ResetResult

class ResetResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

info

Map<String,Object> info

observation

double[] observation

Class neqsim.process.ml.GymEnvironment.StepResult

class StepResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

info

Map<String,Object> info

observation

double[] observation

reward

double reward

terminated

boolean terminated

truncated

boolean truncated

Class neqsim.process.ml.ProcessRewardFunction

class ProcessRewardFunction extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

components

List<ProcessRewardFunction.RewardComponent> components

lastBreakdown

Map<String,Double> lastBreakdown

process

ProcessSystem process

Class neqsim.process.ml.RLEnvironment

class RLEnvironment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionSpace

ActionVector actionSpace

constraintManager

ConstraintManager constraintManager

currentTime

double currentTime

done

boolean done

maxEpisodeTime

double maxEpisodeTime

process

ProcessSystem process

simulationTimeStep

double simulationTimeStep

stepCount

int stepCount

weightConstraintViolation

double weightConstraintViolation

weightEnergy

double weightEnergy

weightSetpointError

double weightSetpointError

weightThroughput

double weightThroughput

Class neqsim.process.ml.RLEnvironment.StepInfo

class StepInfo extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraintPenalty

double constraintPenalty

Constraint violation penalty applied.

energyConsumption

double energyConsumption

Energy consumption this step.

hardViolation

boolean hardViolation

Whether any hard constraint was violated.

simulationTime

double simulationTime

Simulation time.

throughput

double throughput

Current throughput.

violationExplanation

String violationExplanation

Explanation of any violations.

Class neqsim.process.ml.RLEnvironment.StepResult

class StepResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

done

boolean done

Whether episode is finished.

info

RLEnvironment.StepInfo info

Additional info for debugging.

observation

StateVector observation

Current observation (state vector).

reward

double reward

Reward for this step.

truncated

boolean truncated

Whether episode was truncated (time limit).

Class neqsim.process.ml.StateVector

class StateVector extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lowerBounds

Map<String,Double> lowerBounds

timestampMs

long timestampMs

units

Map<String,String> units

upperBounds

Map<String,Double> upperBounds

values

Map<String,Double> values

Class neqsim.process.ml.TrainingDataCollector

class TrainingDataCollector extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentSample

Map<String,Double> currentSample

inputDefs

Map<String, TrainingDataCollector.FeatureDefinition> inputDefs

inputStats

Map<String, TrainingDataCollector.RunningStats> inputStats

name

String name

outputDefs

Map<String, TrainingDataCollector.FeatureDefinition> outputDefs

outputStats

Map<String, TrainingDataCollector.RunningStats> outputStats

samples

List<Map<String,Double>> samples

Package neqsim.process.ml.controllers

Class neqsim.process.ml.controllers.BangBangController

class BangBangController extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentAction

double currentAction

deadband

double deadband

highAction

double highAction

lowAction

double lowAction

name

String name

setpoint

double setpoint

valueIndex

int valueIndex

Class neqsim.process.ml.controllers.PIDController

class PIDController extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionMax

double actionMax

actionMin

double actionMin

dt

double dt

errorIndex

int errorIndex

firstStep

boolean firstStep

integral

double integral

kd

double kd

ki

double ki

kp

double kp

name

String name

previousError

double previousError

Class neqsim.process.ml.controllers.ProportionalController

class ProportionalController extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionMax

double actionMax

actionMin

double actionMin

errorIndex

int errorIndex

kp

double kp

name

String name

Class neqsim.process.ml.controllers.RandomController

class RandomController extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionDim

int actionDim

actionMax

double[] actionMax

actionMin

double[] actionMin

name

String name

random

Random random

Package neqsim.process.ml.examples

Class neqsim.process.ml.examples.SeparatorCompressorMultiAgentEnv

class SeparatorCompressorMultiAgentEnv extends MultiAgentEnvironment implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressor

Compressor compressor

compressorOut

Stream compressorOut

compressorSpeed

double compressorSpeed

feed

Stream feed

liquidLevel

double liquidLevel

liquidValve

ThrottlingValve liquidValve

separator

Separator separator

separatorPressure

double separatorPressure

Class neqsim.process.ml.examples.SeparatorGymEnv

class SeparatorGymEnv extends GymEnvironment implements Serializable

serialVersionUID:

1000L

Serialized Fields

feed

Stream feed

levelSetpoint

double levelSetpoint

liquidLevel

double liquidLevel

liquidValve

ThrottlingValve liquidValve

maxFeedFlow

double maxFeedFlow

maxPressure

double maxPressure

maxTemp

double maxTemp

minTemp

double minTemp

process

ProcessSystem process

separator

Separator separator

valvePosition

double valvePosition

Class neqsim.process.ml.examples.SeparatorLevelControlEnv

class SeparatorLevelControlEnv extends RLEnvironment implements Serializable

serialVersionUID:

1000L

Serialized Fields

feedStream

Stream feedStream

levelSetpoint

double levelSetpoint

liquidValve

ThrottlingValve liquidValve

pressureSetpoint

double pressureSetpoint

previousAction

double previousAction

separator

Separator separator

Package neqsim.process.ml.multiagent

Class neqsim.process.ml.multiagent.CompressorAgent

class CompressorAgent extends ProcessAgent implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressor

Compressor compressor

currentSpeedFraction

double currentSpeedFraction

maxSpeed

double maxSpeed

minSpeed

double minSpeed

Class neqsim.process.ml.multiagent.MultiAgentEnvironment

class MultiAgentEnvironment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

agentOrder

List<String> agentOrder

agents

Map<String,Agent> agents

coordinationMode

MultiAgentEnvironment.CoordinationMode coordinationMode

currentGlobalState

StateVector currentGlobalState

currentStep

int currentStep

maxEpisodeSteps

int maxEpisodeSteps

messages

Map<String,double[]> messages

process

ProcessSystem process

sharedConstraints

ConstraintManager sharedConstraints

terminated

boolean terminated

truncated

boolean truncated

Class neqsim.process.ml.multiagent.MultiAgentEnvironment.MultiAgentStepResult

class MultiAgentStepResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

globalState

StateVector globalState

Global state (for centralized critic).

infos

Map<String, Map<String,Object>> infos

Info for each agent.

observations

Map<String,double[]> observations

Observations for each agent.

rewards

Map<String,Double> rewards

Rewards for each agent (or shared if cooperative).

terminated

boolean terminated

Whether episode terminated.

truncated

boolean truncated

Whether episode truncated.

Class neqsim.process.ml.multiagent.ProcessAgent

class ProcessAgent extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actionHigh

double[] actionHigh

actionLow

double[] actionLow

actionNames

String[] actionNames

agentId

String agentId

equipment

ProcessEquipmentInterface equipment

localConstraints

ConstraintManager localConstraints

observationNames

String[] observationNames

setpoints

Map<String,Double> setpoints

setpointWeights

Map<String,Double> setpointWeights

Class neqsim.process.ml.multiagent.SeparatorAgent

class SeparatorAgent extends ProcessAgent implements Serializable

serialVersionUID:

1000L

Serialized Fields

controlGasValve

boolean controlGasValve

currentGasValvePos

double currentGasValvePos

currentLiquidValvePos

double currentLiquidValvePos

gasValve

ThrottlingValve gasValve

liquidValve

ThrottlingValve liquidValve

separator

Separator separator

Package neqsim.process.ml.surrogate

Class neqsim.process.ml.surrogate.PhysicsConstraintValidator

class PhysicsConstraintValidator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraints

List<PhysicsConstraintValidator.Constraint> constraints

energyBalanceTolerance

double energyBalanceTolerance

enforceEnergyBalance

boolean enforceEnergyBalance

enforceMassBalance

boolean enforceMassBalance

enforcePhysicalBounds

boolean enforcePhysicalBounds

massBalanceTolerance

double massBalanceTolerance

processSystem

ProcessSystem processSystem

Class neqsim.process.ml.surrogate.PhysicsConstraintValidator.ConstraintViolation

class ConstraintViolation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraintName

String constraintName

message

String message

value

double value

variable

String variable

Class neqsim.process.ml.surrogate.PhysicsConstraintValidator.ValidationResult

class ValidationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

violations

List<PhysicsConstraintValidator.ConstraintViolation> violations

Class neqsim.process.ml.surrogate.SurrogateModelRegistry

class SurrogateModelRegistry extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

enableFallback

boolean enableFallback

models

Map<String, SurrogateModelRegistry.SurrogateModelEntry> models

persistenceDirectory

String persistenceDirectory

Class neqsim.process.ml.surrogate.SurrogateModelRegistry.SurrogateMetadata

class SurrogateMetadata extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

expectedAccuracy

double expectedAccuracy

extrapolationCount

int extrapolationCount

failureCount

int failureCount

inputMax

double[] inputMax

inputMin

double[] inputMin

lastUsed

Instant lastUsed

modelType

String modelType

predictionCount

int predictionCount

trainedAt

Instant trainedAt

trainingDataSource

String trainingDataSource

Package neqsim.process.mpc

Class neqsim.process.mpc.ControlledVariable

class ControlledVariable extends MPCVariable implements Serializable

serialVersionUID:

1000L

Serialized Fields

hardMax

double hardMax

Upper hard constraint (never violated).

hardMin

double hardMin

Lower hard constraint (never violated).

predictedValue

double predictedValue

Predicted value from MPC calculation.

setpoint

double setpoint

Target setpoint for this CV.

softConstraintPenalty

double softConstraintPenalty

Penalty weight for soft constraint violations.

softMax

double softMax

Upper soft constraint (penalized if violated).

softMin

double softMin

Lower soft constraint (penalized if violated).

weight

double weight

Weight on setpoint tracking error in objective function.

zoneControl

boolean zoneControl

Whether to use zone control instead of setpoint tracking.

zoneLower

double zoneLower

Lower bound of zone for zone control mode.

zoneUpper

double zoneUpper

Upper bound of zone for zone control mode.

Class neqsim.process.mpc.ControllerDataExchange

class ControllerDataExchange extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

controller

ProcessLinkedMPC controller

The linked MPC controller.

cvHighLimits

double[] cvHighLimits

CV high limits.

cvLowLimits

double[] cvLowLimits

CV low limits.

cvPredictions

double[][] cvPredictions

Predicted CV trajectories.

cvQuality

ControllerDataExchange.QualityStatus[] cvQuality

CV quality flags.

cvValues

double[] cvValues

Current CV values.

dvQuality

ControllerDataExchange.QualityStatus[] dvQuality

DV quality flags.

dvValues

double[] dvValues

Current DV values.

executionCount

long executionCount

Execution count.

executionMessage

String executionMessage

Last execution message.

executionStatus

ControllerDataExchange.ExecutionStatus executionStatus

Last execution status.

lastExecution

Instant lastExecution

Last execution timestamp.

lastInputUpdate

Instant lastInputUpdate

Last input update timestamp.

mvQuality

ControllerDataExchange.QualityStatus[] mvQuality

MV quality flags.

mvTargets

double[] mvTargets

Calculated MV targets.

mvValues

double[] mvValues

Current MV values.

setpoints

double[] setpoints

Current setpoints.

Class neqsim.process.mpc.ControllerDataExchange.ControllerOutput

class ControllerOutput extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cvPredictions

double[][] cvPredictions

message

String message

mvTargets

double[] mvTargets

status

ControllerDataExchange.ExecutionStatus status

timestamp

Instant timestamp

Class neqsim.process.mpc.DisturbanceVariable

class DisturbanceVariable extends MPCVariable implements Serializable

serialVersionUID:

1000L

Serialized Fields

cvSensitivity

double[] cvSensitivity

Sensitivity of CVs to this disturbance (for feedforward).

measured

boolean measured

Whether this is a measured or estimated disturbance.

predictedValue

double predictedValue

Predicted future value (if available).

predictionHorizon

double predictionHorizon

Time horizon for prediction (if available).

previousValue

double previousValue

Previous value for calculating rate of change.

Class neqsim.process.mpc.IndustrialMPCExporter

class IndustrialMPCExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

applicationName

String applicationName

Application name for exported files.

controller

ProcessLinkedMPC controller

The MPC controller to export.

defaultDeadTime

double defaultDeadTime

Default dead time for FOPDT models (seconds).

defaultTimeConstant

double defaultTimeConstant

Default time constant for FOPDT models (seconds).

numStepCoefficients

int numStepCoefficients

Number of step response coefficients to export.

stepResponseGenerator

StepResponseGenerator stepResponseGenerator

Step response generator for detailed model export.

tagPrefix

String tagPrefix

Tag prefix for variable naming.

Class neqsim.process.mpc.LinearizationResult

class LinearizationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

computationTimeMs

long computationTimeMs

Time taken for linearization (milliseconds).

cvNames

String[] cvNames

Names of CVs.

cvOperatingPoint

double[] cvOperatingPoint

Operating point values for CVs.

disturbanceGainMatrix

double[][] disturbanceGainMatrix

Disturbance gain matrix: disturbanceGainMatrix[cv][dv] = ∂CV/∂DV.

dvNames

String[] dvNames

Names of DVs.

dvOperatingPoint

double[] dvOperatingPoint

Operating point values for DVs.

errorMessage

String errorMessage

Error message if linearization failed.

gainMatrix

double[][] gainMatrix

Gain matrix: gainMatrix[cv][mv] = ∂CV/∂MV.

mvNames

String[] mvNames

Names of MVs.

mvOperatingPoint

double[] mvOperatingPoint

Operating point values for MVs.

perturbationSize

double perturbationSize

Perturbation size used for finite differences.

successful

boolean successful

Whether linearization was successful.

Class neqsim.process.mpc.ManipulatedVariable

class ManipulatedVariable extends MPCVariable implements Serializable

serialVersionUID:

1000L

Serialized Fields

cost

double cost

Cost coefficient for using this MV ($/unit or energy cost).

initialValue

double initialValue

Initial value before optimization.

maxRateOfChange

double maxRateOfChange

Maximum allowed change per time step (rate constraint).

minRateOfChange

double minRateOfChange

Minimum allowed change per time step (rate constraint).

moveWeight

double moveWeight

Weight on control moves (penalizes rapid changes).

preferredValue

double preferredValue

Preferred operating value for economic optimization.

preferredWeight

double preferredWeight

Weight on deviation from preferred value.

Class neqsim.process.mpc.MPCVariable

class MPCVariable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentValue

double currentValue

Current value of the variable.

description

String description

Human-readable description of this variable.

equipment

ProcessEquipmentInterface equipment

The process equipment this variable is bound to.

maxValue

double maxValue

Maximum allowed value for this variable.

minValue

double minValue

Minimum allowed value for this variable.

name

String name

Unique identifier for this variable.

propertyName

String propertyName

The property name to read/write on the equipment.

unit

String unit

The unit for the property value.

Class neqsim.process.mpc.NonlinearPredictor

class NonlinearPredictor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cloneProcess

boolean cloneProcess

Whether to clone the process for each prediction (safer but slower).

controlledVariables

List<ControlledVariable> controlledVariables

List of controlled variables.

manipulatedVariables

List<ManipulatedVariable> manipulatedVariables

List of manipulated variables.

predictionHorizon

int predictionHorizon

Prediction horizon (number of steps).

sampleTimeSeconds

double sampleTimeSeconds

Sample time in seconds.

Class neqsim.process.mpc.NonlinearPredictor.MVTrajectory

class MVTrajectory extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

mvMoves

List<List<Double>> mvMoves

mvNames

List<String> mvNames

Class neqsim.process.mpc.NonlinearPredictor.PredictionResult

class PredictionResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cvNames

String[] cvNames

cvTrajectories

double[][] cvTrajectories

mvNames

String[] mvNames

mvTrajectories

double[][] mvTrajectories

sampleTime

double sampleTime

time

double[] time

Class neqsim.process.mpc.ProcessLinkedMPC

class ProcessLinkedMPC extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

controlHorizon

int controlHorizon

Control horizon (number of samples).

controlledVariables

List<ControlledVariable> controlledVariables

Controlled variables.

disturbanceVariables

List<DisturbanceVariable> disturbanceVariables

Disturbance variables.

errorWeights

double[] errorWeights

Error weights for CVs.

executionId

UUID executionId

UUID for execution tracking.

lastMoves

double[] lastMoves

Last calculated MV moves.

linearizationResult

LinearizationResult linearizationResult

Last linearization result.

manipulatedVariables

List<ManipulatedVariable> manipulatedVariables

Manipulated variables.

modelIdentified

boolean modelIdentified

Whether model has been identified.

modelUpdateInterval

int modelUpdateInterval

Model update interval (number of steps).

moveSuppressionWeights

double[] moveSuppressionWeights

Move suppression weights for MVs.

name

String name

Controller name.

nonlinearPredictor

NonlinearPredictor nonlinearPredictor

Nonlinear predictor.

predictionHorizon

int predictionHorizon

Prediction horizon (number of samples).

processSystem

ProcessSystem processSystem

The process system being controlled.

sampleTime

double sampleTime

Sample time in seconds.

stateVariables

List<StateVariable> stateVariables

State variables (for nonlinear MPC).

stepsSinceModelUpdate

int stepsSinceModelUpdate

Steps since last model update.

useNonlinearPrediction

boolean useNonlinearPrediction

Whether to use nonlinear prediction.

Class neqsim.process.mpc.SoftSensorExporter

class SoftSensorExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

applicationName

String applicationName

Application name for exports.

processSystem

ProcessSystem processSystem

The process system containing the equipment.

sensors

List<SoftSensorExporter.SoftSensorDefinition> sensors

List of soft-sensor definitions.

tagPrefix

String tagPrefix

Tag prefix for OPC-style naming.

Class neqsim.process.mpc.SoftSensorExporter.SoftSensorDefinition

class SoftSensorDefinition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentName

String componentName

description

String description

equipmentName

String equipmentName

inputs

Map<String,String> inputs

name

String name

outputUnit

String outputUnit

parameters

Map<String,Double> parameters

sensorType

SoftSensorExporter.SensorType sensorType

updateRateSeconds

double updateRateSeconds

Class neqsim.process.mpc.StateSpaceExporter

class StateSpaceExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

linearizationResult

LinearizationResult linearizationResult

The linearization result to export.

stateSpaceModel

StateSpaceExporter.StateSpaceModel stateSpaceModel

Generated state-space model.

stepResponseMatrix

StepResponseGenerator.StepResponseMatrix stepResponseMatrix

Step response matrix for more detailed model.

Class neqsim.process.mpc.StateSpaceExporter.StateSpaceModel

class StateSpaceModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

A

double[][] A

B

double[][] B

C

double[][] C

D

double[][] D

inputNames

String[] inputNames

outputNames

String[] outputNames

sampleTime

double sampleTime

Class neqsim.process.mpc.StateVariable

class StateVariable extends MPCVariable implements Serializable

serialVersionUID:

1000L

Serialized Fields

bias

double bias

Bias (measurement - model).

biasTfilt

double biasTfilt

Bias filter time constant (seconds).

biasTpred

double biasTpred

Bias prediction time constant (seconds).

dtaIx

String dtaIx

Data index for C++ code linking.

hasMeasurement

boolean hasMeasurement

Whether measurement is available.

measuredValue

double measuredValue

Measured value (if available).

modelValue

double modelValue

Model-predicted value.

updateFromMeasurement

boolean updateFromMeasurement

Whether to update from measurement.

Class neqsim.process.mpc.StepResponse

class StepResponse extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baselineValue

double baselineValue

Baseline CV value before step.

cvName

String cvName

Name of the controlled variable.

cvUnit

String cvUnit

Unit for the CV.

fitError

double fitError

fittedBias

double fittedBias

fittedDeadTime

double fittedDeadTime

fittedGain

double fittedGain

fittedTimeConstant

double fittedTimeConstant

mvName

String mvName

Name of the manipulated variable.

mvUnit

String mvUnit

Unit for the MV.

response

double[] response

CV response values at each time point.

sampleTime

double sampleTime

Sample time interval.

stepSize

double stepSize

Step size applied to MV.

time

double[] time

Time points (in seconds).

Class neqsim.process.mpc.StepResponseGenerator

class StepResponseGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bidirectionalTest

boolean bidirectionalTest

Whether to run both positive and negative steps for averaging.

controlledVariables

List<ControlledVariable> controlledVariables

List of controlled variables.

manipulatedVariables

List<ManipulatedVariable> manipulatedVariables

List of manipulated variables.

positiveStep

boolean positiveStep

Whether to use positive step (true) or negative (false).

sampleIntervalSeconds

double sampleIntervalSeconds

Sample interval in seconds.

settlingTimeSeconds

double settlingTimeSeconds

Settling time in seconds.

stepSizeFraction

double stepSizeFraction

Step size as fraction of MV range.

Class neqsim.process.mpc.StepResponseGenerator.StepResponseMatrix

class StepResponseMatrix extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cvNames

String[] cvNames

mvNames

String[] mvNames

responses

Map<String, Map<String, StepResponse>> responses

Class neqsim.process.mpc.SubrModlExporter

class SubrModlExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

applicationName

String applicationName

Application name for the configuration.

indexTable

List<String> indexTable

Index table entries.

modelName

String modelName

Model name for SubrModl/SubrProc.

parameters

List<SubrModlExporter.ModelParameter> parameters

Model parameters (constants).

processSystem

ProcessSystem processSystem

The process system to export.

sampleTime

double sampleTime

Sample time for the model (seconds).

stateVariables

List<SubrModlExporter.StateVariable> stateVariables

State variables (SVR).

subrXvrs

List<SubrModlExporter.SubrXvr> subrXvrs

SubrXvr definitions.

Class neqsim.process.mpc.SubrModlExporter.ModelParameter

class ModelParameter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

name

String name

unit

String unit

value

double value

Class neqsim.process.mpc.SubrModlExporter.StateVariable

class StateVariable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

dtaIx

String dtaIx

measured

boolean measured

measValue

double measValue

modelValue

double modelValue

name

String name

Class neqsim.process.mpc.SubrModlExporter.SubrXvr

class SubrXvr extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dtaIx

String dtaIx

init

double init

name

String name

text1

String text1

text2

String text2

unit

String unit

Package neqsim.process.processmodel

Class neqsim.process.processmodel.DexpiProcessUnit

class DexpiProcessUnit extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1L

Serialized Fields

dexpiClass

String dexpiClass

fluidCode

String fluidCode

lineNumber

String lineNumber

mappedEquipment

EquipmentEnum mappedEquipment

Class neqsim.process.processmodel.DexpiStream

class DexpiStream extends Stream implements Serializable

serialVersionUID:

1L

Serialized Fields

dexpiClass

String dexpiClass

fluidCode

String fluidCode

lineNumber

String lineNumber

Exception Class neqsim.process.processmodel.DexpiXmlReaderException

class DexpiXmlReaderException extends Exception implements Serializable

serialVersionUID:

1L

Class neqsim.process.processmodel.ProcessConnection

class ProcessConnection extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

sourceEquipment

String sourceEquipment

sourcePort

String sourcePort

sourceReferenceDesignation

String sourceReferenceDesignation

targetEquipment

String targetEquipment

targetPort

String targetPort

targetReferenceDesignation

String targetReferenceDesignation

type

ProcessConnection.ConnectionType type

Class neqsim.process.processmodel.ProcessFlowDiagramExporter

class ProcessFlowDiagramExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

processSystem

ProcessSystem processSystem

The process system to export.

title

String title

Graph title.

Class neqsim.process.processmodel.ProcessModel

class ProcessModel extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

autoValidate

boolean autoValidate

When true, validateSetup() is called on each ProcessSystem before the first iteration. Validation warnings are logged but do not abort execution.

checkpointEnabled

boolean checkpointEnabled

Whether automatic checkpointing is enabled during model execution.

checkpointInterval

int checkpointInterval

Number of iterations between automatic checkpoints.

checkpointPath

String checkpointPath

File path for saving checkpoint files.

flowTolerance

double flowTolerance

lastIterationCount

int lastIterationCount

lastMaxFlowError

double lastMaxFlowError

lastMaxPressureError

double lastMaxPressureError

lastMaxTemperatureError

double lastMaxTemperatureError

maxIterations

int maxIterations

modelConverged

boolean modelConverged

pressureTolerance

double pressureTolerance

processes

Map<String, ProcessSystem> processes

publishEvents

boolean publishEvents

When true, lifecycle events are published to the ProcessEventBus singleton during model execution. Default is false for zero overhead when not needed.

runStep

boolean runStep

temperatureTolerance

double temperatureTolerance

useFlashWarmStart

boolean useFlashWarmStart

When true, every ProcessSystem registered with this model has flash warm-start enabled for the duration of its run (via ProcessSystem.setUseFlashWarmStart(boolean)). Default is false. Setting this flag updates all currently registered ProcessSystems and applies to any ProcessSystem added afterwards.

useOptimizedExecution

boolean useOptimizedExecution

Class neqsim.process.processmodel.ProcessModule

class ProcessModule extends SimulationBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

addedModules

List<ProcessModule> addedModules

addedUnitOperations

List<ProcessSystem> addedUnitOperations

modulesIndex

List<Integer> modulesIndex

operationsIndex

List<Integer> operationsIndex

recycleModules

List<ProcessEquipmentInterface> recycleModules

solved

boolean solved

unitIndex

int unitIndex

Class neqsim.process.processmodel.ProcessModuleBaseClass

class ProcessModuleBaseClass extends SimulationBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

isCalcDesign

boolean isCalcDesign

isInitializedModule

boolean isInitializedModule

isInitializedStreams

boolean isInitializedStreams

operations

ProcessSystem operations

preferedThermodynamicModel

String preferedThermodynamicModel

Class neqsim.process.processmodel.ProcessSystem

class ProcessSystem extends SimulationBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

adaptiveTimestepEnabled

boolean adaptiveTimestepEnabled

Whether adaptive timestep control is enabled.

adaptiveTimestepTolerance

double adaptiveTimestepTolerance

Relative tolerance for adaptive timestep error control.

alarmManager

ProcessAlarmManager alarmManager

autoValidate

boolean autoValidate

When true, validateSetup() is auto-invoked on each equipment unit before the first iteration. Validation warnings are logged but do not abort execution. Enable via setAutoValidate(true).

connections

List<ProcessConnection> connections

controllerDevices

List<ControllerDeviceInterface> controllerDevices

enableMassBalanceTracking

boolean enableMassBalanceTracking

equipmentCounter

Map<String,Integer> equipmentCounter

graphDirty

boolean graphDirty

Flag indicating if the cached graph needs to be rebuilt.

integrationMethod

ProcessSystem.IntegrationMethod integrationMethod

Integration method used in runTransient. Default is explicit Euler.

lastAddedUnit

ProcessEquipmentInterface lastAddedUnit

massBalanceError

double massBalanceError

massBalanceErrorThreshold

double massBalanceErrorThreshold

maxTimestep

double maxTimestep

Maximum allowed timestep in seconds for adaptive control.

maxTransientIterations

int maxTransientIterations

measurementDevices

List<MeasurementDeviceInterface> measurementDevices

measurementHistory

ProcessSystem.MeasurementHistory measurementHistory

minimumFlowForMassBalanceError

double minimumFlowForMassBalanceError

minTimestep

double minTimestep

Minimum allowed timestep in seconds for adaptive control.

parallelTransientEnabled

boolean parallelTransientEnabled

Whether multi-threaded equipment execution is enabled for transient steps.

previousTotalMass

double previousTotalMass

publishEvents

boolean publishEvents

When true, lifecycle events are published to the ProcessEventBus singleton during simulation. Default is false for zero overhead when not needed. Enable via setPublishEvents(true).

recycleController

RecycleController recycleController

runStep

boolean runStep

surroundingTemperature

double surroundingTemperature

timeStep

double timeStep

timeStepNumber

int timeStepNumber

transientThreadPoolSize

int transientThreadPoolSize

Thread pool size for parallel transient execution.

unitOperations

List<ProcessEquipmentInterface> unitOperations

List of unit operations in the process system.

useFlashWarmStart

boolean useFlashWarmStart

When true, the iterative TPflash inside every fluid evaluation re-uses the previously converged K-values as a warm start instead of seeding from Wilson on every call. This is applied via ThermodynamicModelSettings.setUseWarmStartKValues(true) for the duration of ProcessSystem.run(java.util.UUID) and restored afterwards (try/finally), so flowsheet-level usage does not leak into other code on the same thread. Default is false (historical behaviour) — recycle-heavy flowsheets are sensitive to flash trajectory and warm-start can shift the converged fixed point. Opt in via ProcessSystem.setUseFlashWarmStart(boolean) for 10–20% wall-time reduction on flowsheets that re-flash near-identical conditions.

useGraphBasedExecution

boolean useGraphBasedExecution

Whether to use graph-based execution order instead of insertion order.

useOptimizedExecution

boolean useOptimizedExecution

Whether to use optimized execution (parallel/hybrid) by default when run() is called. When true, run() delegates to runOptimized() which automatically selects the best strategy. When false, run() uses sequential execution in insertion order (legacy behavior). Default is true for optimal performance - runOptimized() automatically falls back to sequential execution for processes with multi-input equipment (mixers, heat exchangers, etc.) to preserve correct mass balance.

Package neqsim.process.processmodel.biorefinery

Class neqsim.process.processmodel.biorefinery.BiogasToGridModule

class BiogasToGridModule extends ProcessModule implements Serializable

serialVersionUID:

1004L

Serialized Fields

biomethaneFlowNm3PerHour

double biomethaneFlowNm3PerHour

compressorPowerKW

double compressorPowerKW

coolerDutyKW

double coolerDutyKW

digesterTemperatureC

double digesterTemperatureC

Anaerobic digester temperature in Celsius.

gridPressureBara

double gridPressureBara

Target grid injection pressure in bara.

gridTemperatureC

double gridTemperatureC

Target grid injection temperature in Celsius.

hasRun

boolean hasRun

hydraulicRetentionTimeDays

double hydraulicRetentionTimeDays

Hydraulic retention time in days.

substrateType

AnaerobicDigester.SubstrateType substrateType

Substrate type for digester.

upgradingTechnology

BiogasUpgrader.UpgradingTechnology upgradingTechnology

Upgrading technology.

Class neqsim.process.processmodel.biorefinery.GasificationSynthesisModule

class GasificationSynthesisModule extends ProcessModule implements Serializable

serialVersionUID:

1005L

Serialized Fields

biomassFeedRateKgPerHr

double biomassFeedRateKgPerHr

Biomass feed rate in kg/hr (dry basis).

equivalenceRatio

double equivalenceRatio

Equivalence ratio for gasifier.

ftAlpha

double ftAlpha

Alpha chain-growth probability for FT product distribution.

ftConversion

double ftConversion

CO single-pass conversion in FT reactor (fraction, 0-1).

ftLiquidFlowKgPerHr

double ftLiquidFlowKgPerHr

ftReactorPressureBara

double ftReactorPressureBara

FT reactor pressure in bara.

ftReactorTemperatureC

double ftReactorTemperatureC

FT reactor temperature in Celsius.

gasifierTemperatureC

double gasifierTemperatureC

Gasifier temperature in Celsius.

gasifierType

BiomassGasifier.GasifierType gasifierType

Gasifier type.

hasRun

boolean hasRun

steamToBiomassRatio

double steamToBiomassRatio

Steam-to-biomass ratio.

syngasCoolingTemperatureC

double syngasCoolingTemperatureC

Syngas cooling target temperature in Celsius.

syngasFlowKgPerHr

double syngasFlowKgPerHr

syngasH2COmolRatio

double syngasH2COmolRatio

tailGasFlowKgPerHr

double tailGasFlowKgPerHr

Class neqsim.process.processmodel.biorefinery.WasteToEnergyCHPModule

class WasteToEnergyCHPModule extends ProcessModule implements Serializable

serialVersionUID:

1006L

Serialized Fields

annualElectricityMWh

double annualElectricityMWh

Annual electricity production in MWh/year (8000 hr/yr assumed).

annualHeatMWh

double annualHeatMWh

Annual heat production in MWh/year.

biogasFlowNm3PerHr

double biogasFlowNm3PerHr

Biogas flow rate in Nm3/hr.

co2EmissionsKgPerHr

double co2EmissionsKgPerHr

CO2 emissions from combustion in kg/hr.

digesterTemperatureC

double digesterTemperatureC

Digester temperature in Celsius.

electricalEfficiency

double electricalEfficiency

Electrical efficiency of CHP engine (fraction, 0-1).

electricalPowerKW

double electricalPowerKW

Electrical power output in kW.

exhaustTemperatureC

double exhaustTemperatureC

Exhaust gas temperature after heat recovery in Celsius.

fuelInputKW

double fuelInputKW

Total fuel input in kW (LHV).

hasRun

boolean hasRun

Whether module has run.

heatOutputKW

double heatOutputKW

Useful heat output in kW.

hydraulicRetentionTimeDays

double hydraulicRetentionTimeDays

Hydraulic retention time in days.

methaneFlowNm3PerHr

double methaneFlowNm3PerHr

Methane flow rate in Nm3/hr.

operatingHoursPerYear

double operatingHoursPerYear

Operating hours per year for annual calculations.

substrateType

AnaerobicDigester.SubstrateType substrateType

Substrate type for digester.

thermalEfficiency

double thermalEfficiency

Thermal efficiency of CHP engine (fraction, 0-1).

totalCHPefficiency

double totalCHPefficiency

Total CHP efficiency.

Package neqsim.process.processmodel.dexpi

Class neqsim.process.processmodel.dexpi.DexpiInstrumentInfo

class DexpiInstrumentInfo extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

actuatingTag

String actuatingTag

category

String category

functions

String functions

id

String id

instrumentNumber

String instrumentNumber

loopNumber

String loopNumber

measurementUnit

String measurementUnit

tagName

String tagName

Class neqsim.process.processmodel.dexpi.DexpiProcessUnit

class DexpiProcessUnit extends ProcessEquipmentBaseClass implements Serializable

serialVersionUID:

1L

Serialized Fields

dexpiClass

String dexpiClass

dexpiId

String dexpiId

fluidCode

String fluidCode

lineNumber

String lineNumber

mappedEquipment

EquipmentEnum mappedEquipment

sizingAttributes

Map<String,String> sizingAttributes

Class neqsim.process.processmodel.dexpi.DexpiStream

class DexpiStream extends Stream implements Serializable

serialVersionUID:

1L

Serialized Fields

dexpiClass

String dexpiClass

fluidCode

String fluidCode

lineNumber

String lineNumber

Class neqsim.process.processmodel.dexpi.DexpiTopologyResolver.ResolvedTopology

class ResolvedTopology extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

edges

List<DexpiTopologyResolver.TopologyEdge> edges

nozzleToEquipment

Map<String,String> nozzleToEquipment

orderedEquipmentIds

List<String> orderedEquipmentIds

Class neqsim.process.processmodel.dexpi.DexpiTopologyResolver.TopologyEdge

class TopologyEdge extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

pipingSegmentId

String pipingSegmentId

sourceEquipmentId

String sourceEquipmentId

sourceNozzleId

String sourceNozzleId

targetEquipmentId

String targetEquipmentId

targetNozzleId

String targetNozzleId

Exception Class neqsim.process.processmodel.dexpi.DexpiXmlReaderException

class DexpiXmlReaderException extends Exception implements Serializable

serialVersionUID:

1L

Package neqsim.process.processmodel.diagram

Class neqsim.process.processmodel.diagram.DexpiDiagramBridge

class DexpiDiagramBridge extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.process.processmodel.diagram.EquipmentVisualStyle

class EquipmentVisualStyle extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

borderColor

String borderColor

fillColor

String fillColor

fontColor

String fontColor

height

String height

shape

String shape

style

String style

width

String width

Class neqsim.process.processmodel.diagram.PFDLayoutPolicy

class PFDLayoutPolicy extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

phaseCache

Map<StreamInterface, PFDLayoutPolicy.StreamPhase> phaseCache

Cache for stream phase classifications.

roleCache

Map<ProcessEquipmentInterface, EquipmentRole> roleCache

Cache for equipment role classifications.

Class neqsim.process.processmodel.diagram.ProcessDiagramExporter

class ProcessDiagramExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

detailLevel

DiagramDetailLevel detailLevel

Detail level for the diagram.

diagramStyle

DiagramStyle diagramStyle

Diagram style (NEQSIM, HYSYS, PROII, ASPEN_PLUS).

highlightRecycles

boolean highlightRecycles

Whether to highlight recycle streams with special styling.

layoutPolicy

PFDLayoutPolicy layoutPolicy

The layout policy for determining equipment positions.

processSystem

ProcessSystem processSystem

The process system to export.

showControlEquipment

boolean showControlEquipment

Whether to show control equipment (adjusters, calculators).

showDexpiMetadata

boolean showDexpiMetadata

Whether to show DEXPI metadata (tag names, line numbers, fluid codes).

showLegend

boolean showLegend

Whether to show the legend.

showStreamValues

boolean showStreamValues

Whether to show stream values on edges.

title

String title

Graph title.

useClusters

boolean useClusters

Whether to group equipment by role into clusters.

useStreamTables

boolean useStreamTables

Whether to show stream values as tables (HTML labels).

verticalLayout

boolean verticalLayout

Whether to use vertical (top-down) layout.

Package neqsim.process.processmodel.graph

Class neqsim.process.processmodel.graph.ProcessEdge

class ProcessEdge extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

edgeType

ProcessEdge.EdgeType edgeType

Type of this edge.

index

int index

Unique index of this edge in the graph.

name

String name

Name of this edge/stream.

source

ProcessNode source

The source node (upstream equipment).

stream

StreamInterface stream

The stream this edge represents (may be null for control signals).

target

ProcessNode target

The target node (downstream equipment).

Class neqsim.process.processmodel.graph.ProcessGraph

class ProcessGraph extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

edges

List<ProcessEdge> edges

All edges in the graph.

equipmentToNode

Map<Object, ProcessNode> equipmentToNode

Map from equipment to its node.

equipmentTypeMapping

Map<String,Integer> equipmentTypeMapping

Equipment type to index mapping for feature vectors.

nameToNode

Map<String, ProcessNode> nameToNode

Map from equipment name to node.

nodes

List<ProcessNode> nodes

All nodes in the graph, indexed by their index.

Class neqsim.process.processmodel.graph.ProcessGraph.CycleAnalysisResult

class CycleAnalysisResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

backEdges

List<ProcessEdge> backEdges

cycles

List<List<ProcessNode>> cycles

hasCycles

boolean hasCycles

Class neqsim.process.processmodel.graph.ProcessGraph.ParallelPartition

class ParallelPartition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

levels

List<List<ProcessNode>> levels

nodeToLevel

Map<ProcessNode, Integer> nodeToLevel

Class neqsim.process.processmodel.graph.ProcessGraph.SCCResult

class SCCResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

components

List<List<ProcessNode>> components

nodeToComponent

Map<ProcessNode, Integer> nodeToComponent

Class neqsim.process.processmodel.graph.ProcessGraph.SensitivityAnalysisResult

class SensitivityAnalysisResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

edgeSensitivities

Map<ProcessEdge, Double> edgeSensitivities

rankedTearCandidates

List<ProcessEdge> rankedTearCandidates

totalSensitivity

double totalSensitivity

Class neqsim.process.processmodel.graph.ProcessGraph.TearStreamResult

class TearStreamResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

sccToTearStream

Map<List<ProcessNode>, ProcessEdge> sccToTearStream

tearStreams

List<ProcessEdge> tearStreams

totalCyclesBroken

int totalCyclesBroken

Class neqsim.process.processmodel.graph.ProcessModelGraph

class ProcessModelGraph extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flattenedGraph

ProcessGraph flattenedGraph

interSystemConnections

List<ProcessModelGraph.InterSystemConnection> interSystemConnections

modelName

String modelName

subSystemGraphs

List<ProcessModelGraph.SubSystemGraph> subSystemGraphs

Class neqsim.process.processmodel.graph.ProcessModelGraph.InterSystemConnection

class InterSystemConnection extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

edge

ProcessEdge edge

sourceNode

ProcessNode sourceNode

sourceSystemName

String sourceSystemName

targetNode

ProcessNode targetNode

targetSystemName

String targetSystemName

Class neqsim.process.processmodel.graph.ProcessModelGraph.ModuleParallelPartition

class ModuleParallelPartition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

levels

List<List<ProcessModelGraph.SubSystemGraph>> levels

maxParallelism

int maxParallelism

Class neqsim.process.processmodel.graph.ProcessModelGraph.SubSystemGraph

class SubSystemGraph extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

executionIndex

int executionIndex

graph

ProcessGraph graph

isModule

boolean isModule

systemName

String systemName

Class neqsim.process.processmodel.graph.ProcessNode

class ProcessNode extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipment

ProcessEquipmentInterface equipment

The process equipment this node represents.

incomingEdges

List<ProcessEdge> incomingEdges

Edges representing incoming streams (dependencies).

index

int index

Unique index of this node in the graph.

outgoingEdges

List<ProcessEdge> outgoingEdges

Edges representing outgoing streams (dependents).

Package neqsim.process.processmodel.lifecycle

Class neqsim.process.processmodel.lifecycle.ModelMetadata

class ModelMetadata extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

assetId

String assetId

assetName

String assetName

calibrationAccuracy

double calibrationAccuracy

calibrationStatus

ModelMetadata.CalibrationStatus calibrationStatus

dataSource

String dataSource

facility

String facility

lastCalibrated

Instant lastCalibrated

lastValidated

Instant lastValidated

lifecyclePhase

ModelMetadata.LifecyclePhase lifecyclePhase

modificationHistory

List<ModelMetadata.ModificationRecord> modificationHistory

region

String region

regulatoryBasis

String regulatoryBasis

responsibleEngineer

String responsibleEngineer

responsibleTeam

String responsibleTeam

tags

Map<String,String> tags

validationHistory

List<ModelMetadata.ValidationRecord> validationHistory

Class neqsim.process.processmodel.lifecycle.ModelMetadata.ModificationRecord

class ModificationRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

author

String author

description

String description

timestamp

Instant timestamp

Class neqsim.process.processmodel.lifecycle.ModelMetadata.ValidationRecord

class ValidationRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

referenceId

String referenceId

timestamp

Instant timestamp

Class neqsim.process.processmodel.lifecycle.ProcessModelState

class ProcessModelState extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

createdAt

Instant createdAt

createdBy

String createdBy

customProperties

Map<String,Object> customProperties

Custom properties for extensibility.

description

String description

executionConfig

ProcessModelState.ExecutionConfig executionConfig

Execution configuration.

interProcessConnections

List<ProcessModelState.InterProcessConnection> interProcessConnections

Connections between different ProcessSystems.

lastModifiedAt

Instant lastModifiedAt

name

String name

processStates

Map<String, ProcessSystemState> processStates

Map of process name to its state.

schemaVersion

String schemaVersion

Schema version of this state (for migration support).

version

String version

Class neqsim.process.processmodel.lifecycle.ProcessModelState.ExecutionConfig

class ExecutionConfig extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

flowTolerance

double flowTolerance

maxIterations

int maxIterations

numberOfThreads

int numberOfThreads

parallelExecution

boolean parallelExecution

pressureTolerance

double pressureTolerance

solverType

String solverType

temperatureTolerance

double temperatureTolerance

tolerance

double tolerance

useOptimizedExecution

boolean useOptimizedExecution

Class neqsim.process.processmodel.lifecycle.ProcessModelState.InterProcessConnection

class InterProcessConnection extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

sourceProcess

String sourceProcess

streamName

String streamName

targetPort

String targetPort

targetProcess

String targetProcess

Class neqsim.process.processmodel.lifecycle.ProcessModelState.ModelDiff

class ModelDiff extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

addedEquipment

List<String> addedEquipment

modifiedParameters

Map<String,String> modifiedParameters

removedEquipment

List<String> removedEquipment

Class neqsim.process.processmodel.lifecycle.ProcessModelState.SerializationOptions

class SerializationOptions extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

compressStreams

boolean compressStreams

includeTimestamps

boolean includeTimestamps

prettyPrint

boolean prettyPrint

schemaValidation

boolean schemaValidation

Class neqsim.process.processmodel.lifecycle.ProcessModelState.ValidationResult

class ValidationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

errors

List<String> errors

warnings

List<String> warnings

Class neqsim.process.processmodel.lifecycle.ProcessSystemState

class ProcessSystemState extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

checksum

String checksum

connectionStates

List<ProcessSystemState.ConnectionState> connectionStates

createdAt

Instant createdAt

createdBy

String createdBy

customProperties

Map<String,Object> customProperties

description

String description

equipmentStates

List<ProcessSystemState.EquipmentState> equipmentStates

lastModifiedAt

Instant lastModifiedAt

metadata

ModelMetadata metadata

name

String name

schemaVersion

String schemaVersion

Schema version of this state (for migration support).

streamStates

Map<String, ProcessSystemState.StreamState> streamStates

version

String version

Class neqsim.process.processmodel.lifecycle.ProcessSystemState.ConnectionState

class ConnectionState extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

sourceEquipmentName

String sourceEquipmentName

sourcePortName

String sourcePortName

targetEquipmentName

String targetEquipmentName

targetPortName

String targetPortName

Class neqsim.process.processmodel.lifecycle.ProcessSystemState.EquipmentState

class EquipmentState extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fluidState

ProcessSystemState.FluidState fluidState

name

String name

numericProperties

Map<String,Double> numericProperties

stringProperties

Map<String,String> stringProperties

type

String type

Class neqsim.process.processmodel.lifecycle.ProcessSystemState.FluidState

class FluidState extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

composition

Map<String,Double> composition

numberOfPhases

int numberOfPhases

pressure

double pressure

temperature

double temperature

thermoModelClass

String thermoModelClass

Class neqsim.process.processmodel.lifecycle.ProcessSystemState.StreamState

class StreamState extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

composition

Map<String,Double> composition

molarFlowRate

double molarFlowRate

pressure

double pressure

temperature

double temperature

Package neqsim.process.processmodel.processmodules

Class neqsim.process.processmodel.processmodules.AdsorptionDehydrationlModule

class AdsorptionDehydrationlModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

adsorbentFillingHeight

double adsorbentFillingHeight

adsorber

SimpleAdsorber[] adsorber

adsorberInternalDiameter

double adsorberInternalDiameter

designAdsorptionPressure

double designAdsorptionPressure

designAdsorptionTemperature

double designAdsorptionTemperature

designFlow

double designFlow

designRegenerationTemperature

double designRegenerationTemperature

gasStreamFromAdsorber

StreamInterface gasStreamFromAdsorber

gasStreamToAdsorber

StreamInterface gasStreamToAdsorber

numberOfAdsorptionBeds

int numberOfAdsorptionBeds

regenerationCycleTime

double regenerationCycleTime

waterDewPontTemperature

double waterDewPontTemperature

Class neqsim.process.processmodel.processmodules.CO2RemovalModule

class CO2RemovalModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasFromCO2Stripper

StreamInterface gasFromCO2Stripper

inletSeparator

Separator inletSeparator

streamFromAbsorber

StreamInterface streamFromAbsorber

streamToAbsorber

StreamInterface streamToAbsorber

Class neqsim.process.processmodel.processmodules.DPCUModule

class DPCUModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressor1

Compressor compressor1

distColumn

DistillationColumn distColumn

ethaneOvhComp

StreamInterface ethaneOvhComp

expander

Expander expander

exportGasTemperature

double exportGasTemperature

feedStream

StreamInterface feedStream

firstStageOutPressure

double firstStageOutPressure

gasDistColumnExit

StreamInterface gasDistColumnExit

gasExitStream

StreamInterface gasExitStream

gasScrubberTemperature

double gasScrubberTemperature

glycolExitStream

StreamInterface glycolExitStream

glycolFeedStream

StreamInterface glycolFeedStream

glycolInjectionRate

double glycolInjectionRate

glycolScrubber

Separator glycolScrubber

glycolScrubberTemperature

double glycolScrubberTemperature

heatExchanger1

HeatExchanger heatExchanger1

inletSeparator

Separator inletSeparator

inletSepTemperature

double inletSepTemperature

liquidDistColumnExit

StreamInterface liquidDistColumnExit

liquidPumpPressure

double liquidPumpPressure

LTseparator

Separator LTseparator

mixer

Mixer mixer

oilExitStream

StreamInterface oilExitStream

pressureAfterRedValve

double pressureAfterRedValve

secondStageOutPressure

double secondStageOutPressure

valve1

ThrottlingValve valve1

Class neqsim.process.processmodel.processmodules.GlycolDehydrationlModule

class GlycolDehydrationlModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

absorbtionColumn

SimpleTEGAbsorber absorbtionColumn

designGasFeedTemperature

double designGasFeedTemperature

designStandardGasFlowRate

double designStandardGasFlowRate

flashPressure

double flashPressure

gasFromStripper

StreamInterface gasFromStripper

gasStreamFromAbsorber

StreamInterface gasStreamFromAbsorber

gasStreamToAbsorber

StreamInterface gasStreamToAbsorber

glycolFlashDrum

Separator glycolFlashDrum

glycolTypeName

String glycolTypeName

heatExchanger1

Cooler heatExchanger1

heatExchanger2

Cooler heatExchanger2

heatExchanger3

Cooler heatExchanger3

HPpump

Pump HPpump

leanGlycolMolarFlowRate

double leanGlycolMolarFlowRate

leanGlycolMolarFraction

double leanGlycolMolarFraction

leanGlycolwtFraction

double leanGlycolwtFraction

leanTEGStreamToAbsorber

StreamInterface leanTEGStreamToAbsorber

maxAbsorberDesignPressure

double maxAbsorberDesignPressure

maxglycolFlowRate

double maxglycolFlowRate

numberOfTheoreticalEquilibriumStages

double numberOfTheoreticalEquilibriumStages

reboiler

Heater reboiler

reboilerTemperature

double reboilerTemperature

regenerationPressure

double regenerationPressure

stripperColumn

Separator stripperColumn

strippingGas

StreamInterface strippingGas

valveHP

ThrottlingValve valveHP

valveMP

ThrottlingValve valveMP

waterDewPontSpecification

double waterDewPontSpecification

waterSeparator

Separator waterSeparator

Class neqsim.process.processmodel.processmodules.MEGReclaimerModule

class MEGReclaimerModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

flashSeparator

Separator flashSeparator

inletMixer

Mixer inletMixer

inletValve

ThrottlingValve inletValve

MEGrecircHeater

Heater MEGrecircHeater

MEGRecircPump

Pump MEGRecircPump

recircValve

ThrottlingValve recircValve

reclaimerPressure

double reclaimerPressure

streamFromBoosterCompressor

StreamInterface streamFromBoosterCompressor

streamToReclaimer

StreamInterface streamToReclaimer

streamToWaterRemoval

StreamInterface streamToWaterRemoval

streamWithWaste

StreamInterface streamWithWaste

vacumCooler

Heater vacumCooler

Class neqsim.process.processmodel.processmodules.MixerGasProcessingModule

class MixerGasProcessingModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

exportGasTemperature

double exportGasTemperature

feedStream

StreamInterface feedStream

firstStageOutPressure

double firstStageOutPressure

gasExitStream

StreamInterface gasExitStream

gasScrubberTemperature

double gasScrubberTemperature

glycolExitStream

StreamInterface glycolExitStream

glycolFeedStream

StreamInterface glycolFeedStream

glycolInjectionRate

double glycolInjectionRate

glycolScrubber

Separator glycolScrubber

glycolScrubberTemperature

double glycolScrubberTemperature

inletSeparator

Separator inletSeparator

inletSepTemperature

double inletSepTemperature

liquidPumpPressure

double liquidPumpPressure

oilExitStream

StreamInterface oilExitStream

oilPump

Pump oilPump

secondStageAfterCooler

Cooler secondStageAfterCooler

secondStageCompressor

Compressor secondStageCompressor

secondStageOutPressure

double secondStageOutPressure

Class neqsim.process.processmodel.processmodules.PropaneCoolingModule

class PropaneCoolingModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

condenserTemperature

double condenserTemperature

refrigerantStream

StreamInterface refrigerantStream

vaporizerTemperature

double vaporizerTemperature

Class neqsim.process.processmodel.processmodules.SeparationTrainModule

class SeparationTrainModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

exitGasScrubberTemperature

double exitGasScrubberTemperature

exportOilTemperature

double exportOilTemperature

feedStream

StreamInterface feedStream

firstStageCompressorAfterCoolerTemperature

double firstStageCompressorAfterCoolerTemperature

gasExitStream

StreamInterface gasExitStream

gasInletScrubber

Separator gasInletScrubber

heatedOilTemperature

double heatedOilTemperature

oilCooler

Cooler oilCooler

oilExitStream

StreamInterface oilExitStream

secondstagePressure

double secondstagePressure

thirdstagePressure

double thirdstagePressure

Class neqsim.process.processmodel.processmodules.SeparationTrainModuleSimple

class SeparationTrainModuleSimple extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

exitGasScrubberTemperature

double exitGasScrubberTemperature

exportOilTemperature

double exportOilTemperature

feedStream

StreamInterface feedStream

firstStageCompressorAfterCoolerTemperature

double firstStageCompressorAfterCoolerTemperature

gasExitStream

StreamInterface gasExitStream

gasInletScrubber

Separator gasInletScrubber

heatedOilTemperature

double heatedOilTemperature

oilCooler

Cooler oilCooler

oilExitStream

StreamInterface oilExitStream

secondstagePressure

double secondstagePressure

thirdstagePressure

double thirdstagePressure

Class neqsim.process.processmodel.processmodules.WellFluidModule

class WellFluidModule extends ProcessModuleBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

exitGasScrubberTemperature

double exitGasScrubberTemperature

exportOilTemperature

double exportOilTemperature

feedStream

StreamInterface feedStream

firstStageCompressorAfterCoolerTemperature

double firstStageCompressorAfterCoolerTemperature

gasfactor

double gasfactor

inletPressure

double inletPressure

oilCooler

Cooler oilCooler

outStream

StreamInterface outStream

secondstagePressure

double secondstagePressure

separationTemperature

double separationTemperature

thirdstagePressure

double thirdstagePressure

Package neqsim.process.safety

Class neqsim.process.safety.BoundaryConditions

class BoundaryConditions extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

ambientTemperature

double ambientTemperature

atmosphericPressure

double atmosphericPressure

isOffshore

boolean isOffshore

pasquillStabilityClass

char pasquillStabilityClass

relativeHumidity

double relativeHumidity

seaWaterTemperature

double seaWaterTemperature

solarRadiation

double solarRadiation

surfaceRoughness

double surfaceRoughness

windDirection

double windDirection

windSpeed

double windSpeed

Class neqsim.process.safety.DisposalNetwork

class DisposalNetwork extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

disposalUnits

Map<String,Flare> disposalUnits

sourceToDisposal

Map<String,String> sourceToDisposal

Class neqsim.process.safety.ProcessSafetyAnalysisSummary

class ProcessSafetyAnalysisSummary extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

affectedUnits

Set<String> affectedUnits

conditionMessages

Map<String,String> conditionMessages

conditionMonitorReport

String conditionMonitorReport

scenarioName

String scenarioName

unitKpis

Map<String, ProcessSafetyAnalysisSummary.UnitKpiSnapshot> unitKpis

Class neqsim.process.safety.ProcessSafetyAnalysisSummary.UnitKpiSnapshot

class UnitKpiSnapshot extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

massBalance

double massBalance

pressure

double pressure

temperature

double temperature

Class neqsim.process.safety.ProcessSafetyAnalyzer

class ProcessSafetyAnalyzer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

baseProcessSystem

ProcessSystem baseProcessSystem

disposalNetwork

DisposalNetwork disposalNetwork

loadCases

List<ProcessSafetyLoadCase> loadCases

Class neqsim.process.safety.ProcessSafetyLoadCase

class ProcessSafetyLoadCase extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

name

String name

reliefLoads

Map<String, ProcessSafetyLoadCase.ReliefSourceLoad> reliefLoads

Class neqsim.process.safety.ProcessSafetyLoadCase.ReliefSourceLoad

class ReliefSourceLoad extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

heatDutyW

Double heatDutyW

massRateKgS

double massRateKgS

molarRateMoleS

Double molarRateMoleS

Class neqsim.process.safety.ProcessSafetyScenario

class ProcessSafetyScenario extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

blockedOutletUnits

List<String> blockedOutletUnits

controllerSetPointOverrides

Map<String,Double> controllerSetPointOverrides

name

String name

utilityLossUnits

List<String> utilityLossUnits

Package neqsim.process.safety.dto

Class neqsim.process.safety.dto.CapacityAlertDTO

class CapacityAlertDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

disposalUnitName

String disposalUnitName

loadCaseName

String loadCaseName

message

String message

Class neqsim.process.safety.dto.DisposalLoadCaseResultDTO

class DisposalLoadCaseResultDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alerts

List<CapacityAlertDTO> alerts

loadCaseName

String loadCaseName

maxRadiationDistanceM

double maxRadiationDistanceM

performanceByUnit

Map<String, FlarePerformanceDTO> performanceByUnit

totalHeatDutyMW

double totalHeatDutyMW

Class neqsim.process.safety.dto.DisposalNetworkSummaryDTO

class DisposalNetworkSummaryDTO extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alerts

List<CapacityAlertDTO> alerts

loadCaseResults

List<DisposalLoadCaseResultDTO> loadCaseResults

maxHeatDutyMW

double maxHeatDutyMW

maxRadiationDistanceM

double maxRadiationDistanceM

Package neqsim.process.safety.release

Class neqsim.process.safety.release.LeakModel

class LeakModel extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

backPressure

double backPressure

dischargeCoefficient

double dischargeCoefficient

fluid

SystemInterface fluid

holeDiameter

double holeDiameter

orientation

ReleaseOrientation orientation

scenarioName

String scenarioName

vesselVolume

double vesselVolume

Class neqsim.process.safety.release.SourceTermResult

class SourceTermResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

holeDiameter

double holeDiameter

jetMomentum

double[] jetMomentum

jetVelocity

double[] jetVelocity

liquidDropletSMD

double[] liquidDropletSMD

massFlowRate

double[] massFlowRate

orientation

ReleaseOrientation orientation

peakMassFlowRate

double peakMassFlowRate

pressure

double[] pressure

scenarioName

String scenarioName

temperature

double[] temperature

time

double[] time

timeToEmpty

double timeToEmpty

totalMassReleased

double totalMassReleased

vaporMassFraction

double[] vaporMassFraction

Package neqsim.process.safety.risk

Class neqsim.process.safety.risk.OperationalRiskResult

class OperationalRiskResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baselineProductionRate

double baselineProductionRate

equipmentAvailability

Map<String,Double> equipmentAvailability

iterations

int iterations

maxAvailability

double maxAvailability

maxDowntimeHours

double maxDowntimeHours

maxPossibleProduction

double maxPossibleProduction

maxProduction

double maxProduction

meanAvailability

double meanAvailability

meanDowntimeHours

double meanDowntimeHours

meanFailureCount

double meanFailureCount

meanProduction

double meanProduction

minAvailability

double minAvailability

minProduction

double minProduction

p10Production

double p10Production

p50Production

double p50Production

p90Production

double p90Production

stdDevProduction

double stdDevProduction

timeHorizonDays

double timeHorizonDays

Class neqsim.process.safety.risk.OperationalRiskSimulator

class OperationalRiskSimulator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentReliability

Map<String, OperationalRiskSimulator.EquipmentReliability> equipmentReliability

Equipment reliability data.

feedStreamName

String feedStreamName

Feed stream name.

processSystem

ProcessSystem processSystem

The process system to simulate.

productStreamName

String productStreamName

Product stream name.

randomSeed

long randomSeed

Random seed for reproducibility.

Class neqsim.process.safety.risk.OperationalRiskSimulator.EquipmentReliability

class EquipmentReliability extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

defaultFailureMode

EquipmentFailureMode defaultFailureMode

equipmentName

String equipmentName

failureRate

double failureRate

mtbf

double mtbf

mttr

double mttr

Class neqsim.process.safety.risk.OperationalRiskSimulator.ForecastPoint

class ForecastPoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

day

int day

mean

double mean

p10

double p10

p50

double p50

p90

double p90

Class neqsim.process.safety.risk.OperationalRiskSimulator.ProductionForecast

class ProductionForecast extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

days

int days

points

List<OperationalRiskSimulator.ForecastPoint> points

Class neqsim.process.safety.risk.RiskMatrix

class RiskMatrix extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

downtimeCostPerHour

double downtimeCostPerHour

Downtime cost per hour (fixed costs, personnel, etc.).

feedStreamName

String feedStreamName

Feed stream name.

operatingHoursPerYear

double operatingHoursPerYear

Hours of operation per year.

processSystem

ProcessSystem processSystem

Process system for simulation.

productPricePerKg

double productPricePerKg

Product price (per kg).

productStreamName

String productStreamName

Product stream name.

riskAssessments

Map<String, RiskMatrix.RiskAssessment> riskAssessments

Risk assessments for each equipment.

Class neqsim.process.safety.risk.RiskMatrix.RiskAssessment

class RiskAssessment extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

annualRiskCost

double annualRiskCost

consequenceCategory

RiskMatrix.ConsequenceCategory consequenceCategory

costPerFailure

double costPerFailure

equipmentName

String equipmentName

equipmentType

String equipmentType

expectedDowntimeHoursYear

double expectedDowntimeHoursYear

failuresPerYear

double failuresPerYear

mtbf

double mtbf

mttr

double mttr

probabilityCategory

RiskMatrix.ProbabilityCategory probabilityCategory

productionLossKgHr

double productionLossKgHr

productionLossPercent

double productionLossPercent

riskLevel

RiskMatrix.RiskLevel riskLevel

riskScore

int riskScore

Package neqsim.process.safety.risk.bowtie

Class neqsim.process.safety.risk.bowtie.BowTieAnalyzer

class BowTieAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

availableSIFs

List<SafetyInstrumentedFunction> availableSIFs

Available SIFs for barriers.

bowTieModels

List<BowTieModel> bowTieModels

Generated bow-tie models.

consequenceLibrary

Map<String, List<BowTieAnalyzer.ConsequenceTemplate>> consequenceLibrary

Standard consequence library.

name

String name

Analyzer name.

threatLibrary

Map<String, List<BowTieAnalyzer.ThreatTemplate>> threatLibrary

Standard threat library.

Class neqsim.process.safety.risk.bowtie.BowTieAnalyzer.ConsequenceTemplate

class ConsequenceTemplate extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

BowTieAnalyzer.ConsequenceTemplate.ConsequenceCategory category

defaultSeverity

int defaultSeverity

description

String description

id

String id

recommendedMitigations

List<String> recommendedMitigations

Class neqsim.process.safety.risk.bowtie.BowTieAnalyzer.ThreatTemplate

class ThreatTemplate extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

applicableEquipment

List<String> applicableEquipment

baseFrequency

double baseFrequency

category

String category

description

String description

id

String id

recommendedBarriers

List<String> recommendedBarriers

Class neqsim.process.safety.risk.bowtie.BowTieModel

class BowTieModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

barriers

List<BowTieModel.Barrier> barriers

Barriers.

consequences

List<BowTieModel.Consequence> consequences

Consequences.

hazardDescription

String hazardDescription

Hazard description (top event).

hazardId

String hazardId

Hazard identifier.

hazardType

String hazardType

Hazard type.

maxSeverity

int maxSeverity

Maximum consequence severity.

mitigatedFrequency

double mitigatedFrequency

Calculated mitigated frequency.

threats

List<BowTieModel.Threat> threats

Threats (causes).

unmitigatedFrequency

double unmitigatedFrequency

Calculated unmitigated frequency.

Class neqsim.process.safety.risk.bowtie.BowTieModel.Barrier

class Barrier extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

barrierType

BowTieModel.BarrierType barrierType

description

String description

effectiveness

double effectiveness

functional

boolean functional

id

String id

owner

String owner

pfd

double pfd

sif

SafetyInstrumentedFunction sif

verificationStatus

String verificationStatus

Class neqsim.process.safety.risk.bowtie.BowTieModel.Consequence

class Consequence extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

String category

description

String description

id

String id

linkedBarrierIds

List<String> linkedBarrierIds

probability

double probability

severity

int severity

Class neqsim.process.safety.risk.bowtie.BowTieModel.Threat

class Threat extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

active

boolean active

description

String description

frequency

double frequency

id

String id

linkedBarrierIds

List<String> linkedBarrierIds

Class neqsim.process.safety.risk.bowtie.BowTieSvgExporter

class BowTieSvgExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

height

int height

model

BowTieModel model

width

int width

Package neqsim.process.safety.risk.condition

Class neqsim.process.safety.risk.condition.ConditionBasedReliability

class ConditionBasedReliability extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

adjustedFailureRate

double adjustedFailureRate

Current adjusted failure rate.

baseFailureRate

double baseFailureRate

Base failure rate (failures/hour).

degradationModel

ConditionBasedReliability.DegradationModel degradationModel

Degradation model type.

equipmentId

String equipmentId

Equipment identifier.

equipmentName

String equipmentName

Equipment name.

healthHistory

List<ConditionBasedReliability.HealthRecord> healthHistory

History of health indices.

healthIndex

double healthIndex

Health index (0-1, 1 = perfect health).

indicators

List<ConditionBasedReliability.ConditionIndicator> indicators

Condition indicators.

lastUpdated

Instant lastUpdated

Last update timestamp.

remainingUsefulLife

double remainingUsefulLife

Remaining useful life estimate (hours).

rulConfidence

double rulConfidence

Confidence in RUL estimate (0-1).

Class neqsim.process.safety.risk.condition.ConditionBasedReliability.ConditionIndicator

class ConditionIndicator extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alarming

boolean alarming

critical

boolean critical

criticalThreshold

double criticalThreshold

currentValue

double currentValue

indicatorId

String indicatorId

name

String name

normalValue

double normalValue

type

ConditionBasedReliability.ConditionIndicator.IndicatorType type

warningThreshold

double warningThreshold

weight

double weight

Class neqsim.process.safety.risk.condition.ConditionBasedReliability.HealthRecord

class HealthRecord extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

adjustedFailureRate

double adjustedFailureRate

healthIndex

double healthIndex

timestamp

Instant timestamp

Class neqsim.process.safety.risk.condition.ProcessEquipmentMonitor

class ProcessEquipmentMonitor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

adjustedFailureRate

double adjustedFailureRate

baseFailureRate

double baseFailureRate

bottleneckConstraint

String bottleneckConstraint

capacityWeight

double capacityWeight

currentCapacityUtilization

double currentCapacityUtilization

currentPressure

double currentPressure

currentTemperature

double currentTemperature

equipment

ProcessEquipmentInterface equipment

equipmentName

String equipmentName

healthIndex

double healthIndex

history

List<ProcessEquipmentMonitor.MonitorReading> history

lastUpdated

Instant lastUpdated

maxCapacityUtilization

double maxCapacityUtilization

maxDesignPressure

double maxDesignPressure

maxDesignTemperature

double maxDesignTemperature

maxHistorySize

int maxHistorySize

minDesignPressure

double minDesignPressure

minDesignTemperature

double minDesignTemperature

pressureWeight

double pressureWeight

temperatureWeight

double temperatureWeight

Class neqsim.process.safety.risk.condition.ProcessEquipmentMonitor.MonitorReading

class MonitorReading extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

adjustedFailureRate

double adjustedFailureRate

capacityUtilization

double capacityUtilization

healthIndex

double healthIndex

pressure

double pressure

temperature

double temperature

timestamp

Instant timestamp

Package neqsim.process.safety.risk.data

Class neqsim.process.safety.risk.data.OREDADataImporter

class OREDADataImporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

byEquipmentType

Map<String, List<OREDADataImporter.ReliabilityRecord>> byEquipmentType

byKey

Map<String, OREDADataImporter.ReliabilityRecord> byKey

dataSource

String dataSource

records

List<OREDADataImporter.ReliabilityRecord> records

Class neqsim.process.safety.risk.data.OREDADataImporter.ReliabilityRecord

class ReliabilityRecord extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

confidence

String confidence

dataSource

String dataSource

equipmentClass

String equipmentClass

equipmentType

String equipmentType

failureMode

String failureMode

failureRate

double failureRate

mtbfHours

double mtbfHours

mttrHours

double mttrHours

notes

String notes

Package neqsim.process.safety.risk.dynamic

Class neqsim.process.safety.risk.dynamic.DynamicRiskResult

class DynamicRiskResult extends OperationalRiskResult implements Serializable

serialVersionUID:

1000L

Serialized Fields

meanSteadyStateLoss

double meanSteadyStateLoss

meanTransientCount

double meanTransientCount

meanTransientLoss

double meanTransientLoss

p10TransientLoss

double p10TransientLoss

p50TransientLoss

double p50TransientLoss

p90TransientLoss

double p90TransientLoss

rampUpTimeHours

double rampUpTimeHours

simulateTransients

boolean simulateTransients

steadyStateLosses

double[] steadyStateLosses

timestepHours

double timestepHours

totalTransientEvents

int totalTransientEvents

transientLosses

double[] transientLosses

transientLossFraction

double transientLossFraction

Class neqsim.process.safety.risk.dynamic.DynamicRiskSimulator

class DynamicRiskSimulator extends OperationalRiskSimulator implements Serializable

serialVersionUID:

1000L

Serialized Fields

productionProfiles

List<ProductionProfile> productionProfiles

Production profiles from simulation.

rampUpProfile

DynamicRiskSimulator.RampProfile rampUpProfile

Ramp-up profile type.

rampUpTimeHours

double rampUpTimeHours

Time to ramp up production after repair in hours.

shutdownProfile

DynamicRiskSimulator.RampProfile shutdownProfile

Shutdown profile type.

shutdownTimeHours

double shutdownTimeHours

Time for shutdown transient in hours.

simulateTransients

boolean simulateTransients

Whether to simulate transient effects.

timestepHours

double timestepHours

Time step for dynamic simulation in hours.

transientStats

TransientLossStatistics transientStats

Transient loss statistics.

Class neqsim.process.safety.risk.dynamic.ProductionProfile

class ProductionProfile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baselineProduction

double baselineProduction

Baseline production rate (kg/hr).

degradedProduction

double degradedProduction

Degraded production rate (kg/hr).

equipmentName

String equipmentName

Equipment that failed.

failureMode

String failureMode

Failure mode description.

rampUpDuration

double rampUpDuration

Ramp-up transient duration (hours).

rampUpTransientLoss

double rampUpTransientLoss

Production loss during ramp-up transient (kg).

repairDuration

double repairDuration

Total repair duration (hours).

shutdownDuration

double shutdownDuration

Shutdown transient duration (hours).

shutdownTransientLoss

double shutdownTransientLoss

Production loss during shutdown transient (kg).

steadyStateDuration

double steadyStateDuration

Steady-state degraded duration (hours).

steadyStateLoss

double steadyStateLoss

Production loss during steady-state degraded operation (kg).

timeSeries

List<ProductionProfile.TimePoint> timeSeries

Time series data for detailed analysis.

totalLoss

double totalLoss

Total production loss (kg).

totalProduction

double totalProduction

Total production during event (kg).

transientLossFraction

double transientLossFraction

Fraction of loss from transients.

Class neqsim.process.safety.risk.dynamic.ProductionProfile.TimePoint

class TimePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

phase

String phase

productionRate

double productionRate

time

double time

Class neqsim.process.safety.risk.dynamic.TransientLossStatistics

class TransientLossStatistics extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

meanRampUpLoss

double meanRampUpLoss

meanShutdownLoss

double meanShutdownLoss

meanTransientLoss

double meanTransientLoss

rampUpEventCount

int rampUpEventCount

rampUpFraction

double rampUpFraction

shutdownEventCount

int shutdownEventCount

shutdownFraction

double shutdownFraction

steadyStateFraction

double steadyStateFraction

totalEventCount

int totalEventCount

totalLoss

double totalLoss

totalRampUpLoss

double totalRampUpLoss

totalShutdownLoss

double totalShutdownLoss

totalSteadyStateLoss

double totalSteadyStateLoss

totalTransientLoss

double totalTransientLoss

transientFraction

double transientFraction

Package neqsim.process.safety.risk.ml

Class neqsim.process.safety.risk.ml.MLIntegrationExamples.BaseMLAdapter

class BaseMLAdapter extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

featureDefaults

Map<String,Double> featureDefaults

inputFeatures

List<String> inputFeatures

isLoaded

boolean isLoaded

modelName

String modelName

Class neqsim.process.safety.risk.ml.MLIntegrationExamples.OnnxAdapter

class OnnxAdapter extends MLIntegrationExamples.BaseMLAdapter implements Serializable

serialVersionUID:

1L

Serialized Fields

modelPath

String modelPath

Class neqsim.process.safety.risk.ml.MLIntegrationExamples.RestApiAdapter

class RestApiAdapter extends MLIntegrationExamples.BaseMLAdapter implements Serializable

serialVersionUID:

1L

Serialized Fields

endpoint

String endpoint

headers

Map<String,String> headers

timeoutMs

int timeoutMs

Class neqsim.process.safety.risk.ml.MLIntegrationExamples.TensorFlowAdapter

class TensorFlowAdapter extends MLIntegrationExamples.BaseMLAdapter implements Serializable

serialVersionUID:

1L

Serialized Fields

inputTensorName

String inputTensorName

modelDir

String modelDir

outputTensorName

String outputTensorName

Class neqsim.process.safety.risk.ml.MLIntegrationExamples.ThresholdModel

class ThresholdModel extends MLIntegrationExamples.BaseMLAdapter implements Serializable

serialVersionUID:

1L

Serialized Fields

thresholds

Map<String,Double> thresholds

weights

Map<String,Double> weights

Class neqsim.process.safety.risk.ml.RiskMLInterface

class RiskMLInterface extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxHistorySize

int maxHistorySize

Maximum history size.

models

Map<String, RiskMLInterface.MLModel> models

Registered ML models.

name

String name

Interface name.

predictionHistory

List<RiskMLInterface.PredictionRecord> predictionHistory

Prediction history.

Class neqsim.process.safety.risk.ml.RiskMLInterface.MLModel

class MLModel extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

accuracy

double accuracy

active

boolean active

metadata

Map<String,Object> metadata

modelId

String modelId

modelName

String modelName

modelType

RiskMLInterface.MLModel.ModelType modelType

trainedDate

Instant trainedDate

version

String version

Class neqsim.process.safety.risk.ml.RiskMLInterface.MLPrediction

class MLPrediction extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

confidence

double confidence

featureImportance

Map<String,Double> featureImportance

label

String label

metadata

Map<String,Object> metadata

modelId

String modelId

prediction

double prediction

probabilities

double[] probabilities

timestamp

Instant timestamp

Class neqsim.process.safety.risk.ml.RiskMLInterface.ModelPerformanceMetrics

class ModelPerformanceMetrics extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

meanAbsoluteError

double meanAbsoluteError

meanAbsolutePercentageError

double meanAbsolutePercentageError

modelId

String modelId

rootMeanSquareError

double rootMeanSquareError

totalPredictions

int totalPredictions

validatedPredictions

int validatedPredictions

Class neqsim.process.safety.risk.ml.RiskMLInterface.PredictionRecord

class PredictionRecord extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

actualValue

Double actualValue

features

Map<String,Double> features

modelId

String modelId

prediction

double prediction

timestamp

Instant timestamp

validated

boolean validated

Package neqsim.process.safety.risk.portfolio

Class neqsim.process.safety.risk.portfolio.PortfolioRiskAnalyzer

class PortfolioRiskAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

assets

List<PortfolioRiskAnalyzer.Asset> assets

Assets in portfolio.

commonCauseScenarios

List<PortfolioRiskAnalyzer.CommonCauseScenario> commonCauseScenarios

Common cause scenarios.

lastResult

PortfolioRiskResult lastResult

Results of last simulation.

name

String name

Analyzer name.

numberOfSimulations

int numberOfSimulations

Number of simulations.

random

Random random

Random number generator.

simulationPeriodYears

double simulationPeriodYears

Simulation period in years.

Class neqsim.process.safety.risk.portfolio.PortfolioRiskAnalyzer.Asset

class Asset extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

assetId

String assetId

assetName

String assetName

assetType

String assetType

expectedProductionLoss

double expectedProductionLoss

insuranceValue

double insuranceValue

maxProduction

double maxProduction

region

String region

systemAvailability

double systemAvailability

Class neqsim.process.safety.risk.portfolio.PortfolioRiskAnalyzer.CommonCauseScenario

class CommonCauseScenario extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

affectedAssetIds

List<String> affectedAssetIds

assetImpact

Map<String,Double> assetImpact

description

String description

duration

double duration

frequency

double frequency

scenarioId

String scenarioId

type

PortfolioRiskAnalyzer.CommonCauseScenario.CommonCauseType type

Class neqsim.process.safety.risk.portfolio.PortfolioRiskResult

class PortfolioRiskResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

analysisName

String analysisName

Analysis name.

assetResults

List<PortfolioRiskResult.AssetResult> assetResults

commonCauseFraction

double commonCauseFraction

diversificationBenefit

double diversificationBenefit

expectedCommonCauseLoss

double expectedCommonCauseLoss

expectedPortfolioLoss

double expectedPortfolioLoss

maxPortfolioLoss

double maxPortfolioLoss

numberOfSimulations

int numberOfSimulations

Number of simulations.

p10PortfolioLoss

double p10PortfolioLoss

p50PortfolioLoss

double p50PortfolioLoss

p90PortfolioLoss

double p90PortfolioLoss

p99PortfolioLoss

double p99PortfolioLoss

portfolioAvailability

double portfolioAvailability

portfolioLossStdDev

double portfolioLossStdDev

simulationPeriodYears

double simulationPeriodYears

Simulation period in years.

totalExpectedProduction

double totalExpectedProduction

totalMaxProduction

double totalMaxProduction

Class neqsim.process.safety.risk.portfolio.PortfolioRiskResult.AssetResult

class AssetResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

assetId

String assetId

assetName

String assetName

availability

double availability

contributionToPortfolioRisk

double contributionToPortfolioRisk

expectedLoss

double expectedLoss

expectedProduction

double expectedProduction

maxProduction

double maxProduction

p90Loss

double p90Loss

Package neqsim.process.safety.risk.realtime

Class neqsim.process.safety.risk.realtime.PhysicsBasedRiskMonitor

class PhysicsBasedRiskMonitor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseFailureRates

Map<String,Double> baseFailureRates

equipmentMonitors

Map<String, ProcessEquipmentMonitor> equipmentMonitors

lastAssessment

Instant lastAssessment

processSystem

ProcessSystem processSystem

Class neqsim.process.safety.risk.realtime.PhysicsBasedRiskMonitor.PhysicsBasedRiskAssessment

class PhysicsBasedRiskAssessment extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

bottleneckConstraint

String bottleneckConstraint

bottleneckEquipment

String bottleneckEquipment

bottleneckUtilization

double bottleneckUtilization

criticalEquipment

List<String> criticalEquipment

equipmentHealthIndices

Map<String,Double> equipmentHealthIndices

equipmentRiskScores

Map<String,Double> equipmentRiskScores

equipmentUtilizations

Map<String,Double> equipmentUtilizations

highestRiskEquipment

String highestRiskEquipment

highestRiskScore

double highestRiskScore

overallRiskScore

double overallRiskScore

systemCapacityMargin

double systemCapacityMargin

timestamp

Instant timestamp

warnings

List<String> warnings

Class neqsim.process.safety.risk.realtime.RealTimeRiskAssessment

class RealTimeRiskAssessment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

availability

double availability

System availability (0-1).

equipmentStatuses

List<RealTimeRiskMonitor.EquipmentRiskStatus> equipmentStatuses

Equipment statuses.

expectedProductionLoss

double expectedProductionLoss

Expected production loss (%).

kris

Map<String,Double> kris

Key risk indicators.

overallRiskScore

double overallRiskScore

Overall risk score (0-10).

processVariables

Map<String, RealTimeRiskAssessment.ProcessVariableStatus> processVariables

Process variable deviations.

riskCategory

RiskMatrix.RiskLevel riskCategory

Risk category.

riskTrend

String riskTrend

Risk trend.

safetyStatus

RealTimeRiskAssessment.SafetySystemStatus safetyStatus

Safety system status.

timestamp

Instant timestamp

Assessment timestamp.

trendSlope

double trendSlope

Trend slope.

Class neqsim.process.safety.risk.realtime.RealTimeRiskAssessment.ProcessVariableStatus

class ProcessVariableStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alarming

boolean alarming

currentValue

double currentValue

deviation

double deviation

deviationPercent

double deviationPercent

normalValue

double normalValue

unit

String unit

variableName

String variableName

Class neqsim.process.safety.risk.realtime.RealTimeRiskAssessment.SafetySystemStatus

class SafetySystemStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

availableSIFs

int availableSIFs

bypassedSIFs

int bypassedSIFs

demandedSIFs

int demandedSIFs

overallSISHealth

double overallSISHealth

totalSIFs

int totalSIFs

Class neqsim.process.safety.risk.realtime.RealTimeRiskMonitor

class RealTimeRiskMonitor extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeAlerts

List<RealTimeRiskMonitor.RiskAlert> activeAlerts

Active alerts.

alertThresholds

RealTimeRiskMonitor.AlertThresholds alertThresholds

Alert thresholds.

assessmentHistory

Queue<RealTimeRiskAssessment> assessmentHistory

Historical assessments.

baselineRiskLevel

double baselineRiskLevel

Baseline risk level for anomaly detection.

baselineStdDev

double baselineStdDev

Standard deviation of baseline.

currentAssessment

RealTimeRiskAssessment currentAssessment

Current risk assessment.

equipmentStatus

Map<String, RealTimeRiskMonitor.EquipmentRiskStatus> equipmentStatus

Equipment-specific risk levels.

historySize

int historySize

History retention (number of assessments).

monitoringActive

boolean monitoringActive

Monitoring active flag.

name

String name

Monitor name.

updateIntervalSeconds

int updateIntervalSeconds

Update interval in seconds.

Class neqsim.process.safety.risk.realtime.RealTimeRiskMonitor.AlertThresholds

class AlertThresholds extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

anomalyStdDevs

double anomalyStdDevs

criticalRiskLevel

double criticalRiskLevel

highRiskLevel

double highRiskLevel

trendChangePercent

double trendChangePercent

warningRiskLevel

double warningRiskLevel

Class neqsim.process.safety.risk.realtime.RealTimeRiskMonitor.EquipmentRiskStatus

class EquipmentRiskStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

RiskMatrix.RiskLevel category

equipmentId

String equipmentId

equipmentName

String equipmentName

failureProbability

double failureProbability

healthStatus

String healthStatus

lastUpdated

Instant lastUpdated

riskScore

double riskScore

Class neqsim.process.safety.risk.realtime.RealTimeRiskMonitor.RiskAlert

class RiskAlert extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

acknowledged

boolean acknowledged

alertId

String alertId

currentValue

double currentValue

message

String message

severity

RealTimeRiskMonitor.RiskAlert.AlertSeverity severity

source

String source

thresholdValue

double thresholdValue

timestamp

Instant timestamp

type

RealTimeRiskMonitor.RiskAlert.AlertType type

Package neqsim.process.safety.risk.sis

Class neqsim.process.safety.risk.sis.LOPAResult

class LOPAResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gapToTarget

double gapToTarget

Gap to target (positive = shortfall).

initiatingEventFrequency

double initiatingEventFrequency

Initiating event frequency (per year).

layers

List<LOPAResult.ProtectionLayer> layers

Protection layers applied.

mitigatedFrequency

double mitigatedFrequency

Final mitigated frequency (per year).

scenarioName

String scenarioName

Scenario/event name.

targetFrequency

double targetFrequency

Target mitigated frequency (per year).

targetMet

boolean targetMet

Whether target is met.

Class neqsim.process.safety.risk.sis.LOPAResult.ProtectionLayer

class ProtectionLayer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

contribution

double contribution

frequencyAfter

double frequencyAfter

frequencyBefore

double frequencyBefore

name

String name

pfd

double pfd

Class neqsim.process.safety.risk.sis.SafetyInstrumentedFunction

class SafetyInstrumentedFunction extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

architecture

String architecture

Architecture (1oo1, 1oo2, 2oo3, etc.).

category

SafetyInstrumentedFunction.SIFCategory category

SIF category (ESD, HIPPS, Fire and Gas, etc.).

description

String description

SIF description.

id

String id

SIF identifier.

initiatingEvent

String initiatingEvent

Initiating event that triggers this SIF.

lastProofTest

Date lastProofTest

Last proof test date.

mttr

double mttr

Mean Time To Repair in hours.

name

String name

SIF name.

notes

String notes

Notes and comments.

pfdAvg

double pfdAvg

Probability of Failure on Demand (average).

protectedEquipment

List<String> protectedEquipment

Equipment protected by this SIF.

safeState

String safeState

Safe state description.

sil

int sil

Safety Integrity Level (1-4).

spuriousTripRate

double spuriousTripRate

Spurious trip rate per year.

testIntervalHours

double testIntervalHours

Test interval in hours.

Class neqsim.process.safety.risk.sis.SILVerificationResult

class SILVerificationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

achievedSIL

int achievedSIL

Achieved SIL based on PFD.

claimedSIL

int claimedSIL

Claimed SIL.

componentContributions

List<SILVerificationResult.ComponentContribution> componentContributions

Component contributions.

diagnosticCoverage

double diagnosticCoverage

Diagnostic coverage.

hardwareFaultTolerance

int hardwareFaultTolerance

Hardware fault tolerance.

issues

List<SILVerificationResult.VerificationIssue> issues

Verification issues found.

pfdAverage

double pfdAverage

Calculated PFD average.

pfdUpper

double pfdUpper

PFD upper bound.

sif

SafetyInstrumentedFunction sif

SIF being verified.

silAchieved

boolean silAchieved

Whether SIL target is achieved.

systematicCapability

int systematicCapability

Systematic capability claim.

Class neqsim.process.safety.risk.sis.SILVerificationResult.ComponentContribution

class ComponentContribution extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

componentName

String componentName

componentType

String componentType

failureRate

double failureRate

percentOfTotal

double percentOfTotal

pfdContribution

double pfdContribution

Class neqsim.process.safety.risk.sis.SILVerificationResult.VerificationIssue

class VerificationIssue extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

category

SILVerificationResult.VerificationIssue.IssueCategory category

description

String description

recommendation

String recommendation

severity

SILVerificationResult.VerificationIssue.IssueSeverity severity

Class neqsim.process.safety.risk.sis.SISIntegratedRiskModel

class SISIntegratedRiskModel extends RiskModel implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentSIFs

Map<String, List<SafetyInstrumentedFunction>> equipmentSIFs

Mapping of equipment to protecting SIFs.

eventSIFs

Map<String, List<SafetyInstrumentedFunction>> eventSIFs

Mapping of initiating events to mitigating SIFs.

ipls

List<SISIntegratedRiskModel.IndependentProtectionLayer> ipls

Independent Protection Layers (non-SIS barriers).

sifs

List<SafetyInstrumentedFunction> sifs

List of SIFs in the model.

toleranceCriteria

SISIntegratedRiskModel.RiskToleranceCriteria toleranceCriteria

Risk tolerance criteria.

Class neqsim.process.safety.risk.sis.SISIntegratedRiskModel.IndependentProtectionLayer

class IndependentProtectionLayer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

applicableEvents

List<String> applicableEvents

description

String description

name

String name

pfd

double pfd

type

SISIntegratedRiskModel.IndependentProtectionLayer.IPLType type

Class neqsim.process.safety.risk.sis.SISIntegratedRiskModel.RiskToleranceCriteria

class RiskToleranceCriteria extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

alarP

double alarP

tolerableFrequencyAsset

double tolerableFrequencyAsset

tolerableFrequencyEnvironment

double tolerableFrequencyEnvironment

tolerableFrequencyFatality

double tolerableFrequencyFatality

tolerableFrequencyInjury

double tolerableFrequencyInjury

Class neqsim.process.safety.risk.sis.SISRiskResult

class SISRiskResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

eventResults

List<SISRiskResult.EventMitigationResult> eventResults

Results per event.

overallRRF

double overallRRF

Overall risk reduction factor.

studyName

String studyName

Study name.

totalMitigatedFrequency

double totalMitigatedFrequency

Total mitigated frequency.

totalUnmitigatedFrequency

double totalUnmitigatedFrequency

Total unmitigated frequency.

Class neqsim.process.safety.risk.sis.SISRiskResult.EventMitigationResult

class EventMitigationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

appliedSIFs

List<String> appliedSIFs

eventName

String eventName

mitigatedFrequency

double mitigatedFrequency

riskReduction

double riskReduction

sifContributions

Map<String,Double> sifContributions

unmitigatedFrequency

double unmitigatedFrequency

Package neqsim.process.safety.scenario

Class neqsim.process.safety.scenario.AutomaticScenarioGenerator

class AutomaticScenarioGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

enabledFailureModes

Set<AutomaticScenarioGenerator.FailureMode> enabledFailureModes

equipmentToDeviations

Map<String, List<String>> equipmentToDeviations

identifiedFailures

List<AutomaticScenarioGenerator.EquipmentFailure> identifiedFailures

processSystem

ProcessSystem processSystem

Class neqsim.process.safety.scenario.AutomaticScenarioGenerator.EquipmentFailure

class EquipmentFailure extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentName

String equipmentName

equipmentType

String equipmentType

mode

AutomaticScenarioGenerator.FailureMode mode

Class neqsim.process.safety.scenario.AutomaticScenarioGenerator.ScenarioRunResult

class ScenarioRunResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

errorMessage

String errorMessage

executionTimeMs

long executionTimeMs

resultValues

Map<String,Double> resultValues

scenario

ProcessSafetyScenario scenario

successful

boolean successful

Package neqsim.process.streaming

Class neqsim.process.streaming.TimestampedValue

class TimestampedValue extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

quality

TimestampedValue.Quality quality

timestamp

Instant timestamp

unit

String unit

value

double value

Package neqsim.process.sustainability

Class neqsim.process.sustainability.EmissionsTracker

class EmissionsTracker extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

gridEmissionFactor

double gridEmissionFactor

history

List<EmissionsTracker.EmissionsSnapshot> history

includeIndirectEmissions

boolean includeIndirectEmissions

naturalGasEmissionFactor

double naturalGasEmissionFactor

processSystem

ProcessSystem processSystem

trackingStartTime

Instant trackingStartTime

Class neqsim.process.sustainability.EmissionsTracker.EmissionsReport

class EmissionsReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

equipmentEmissions

Map<String, EmissionsTracker.EquipmentEmissions> equipmentEmissions

processName

String processName

timestamp

Instant timestamp

totalCO2eKgPerHr

double totalCO2eKgPerHr

totalHeatDutyKW

double totalHeatDutyKW

totalPowerKW

double totalPowerKW

Class neqsim.process.sustainability.EmissionsTracker.EmissionsSnapshot

class EmissionsSnapshot extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

timestamp

Instant timestamp

totalCO2eKgPerHr

double totalCO2eKgPerHr

totalPowerKW

double totalPowerKW

Class neqsim.process.sustainability.EmissionsTracker.EquipmentEmissions

class EquipmentEmissions extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

EmissionsTracker.EmissionCategory category

directCO2eKgPerHr

double directCO2eKgPerHr

equipmentName

String equipmentName

equipmentType

String equipmentType

heatDutyKW

double heatDutyKW

indirectCO2eKgPerHr

double indirectCO2eKgPerHr

powerConsumptionKW

double powerConsumptionKW

Package neqsim.process.util

Class neqsim.process.util.DualEosComparison

class DualEosComparison extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentNames

String[] componentNames

Component names.

conditions

List<double[]> conditions

Conditions to evaluate: each entry is {T_kelvin, P_bara}.

deviationThreshold

double deviationThreshold

Deviation threshold for flagging (fraction, e.g., 0.05 = 5%).

mixingRule

String mixingRule

Mixing rule string.

molarComposition

double[] molarComposition

Component molar compositions.

primaryEosName

String primaryEosName

Name of primary EoS.

results

List<DualEosComparison.ComparisonResult> results

Results for each condition.

secondaryEosName

String secondaryEosName

Name of secondary EoS.

Class neqsim.process.util.DualEosComparison.ComparisonResult

class ComparisonResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flags

List<String> flags

Deviation flags.

pr78Cp

double pr78Cp

PR78 Cp kJ/kgK.

pr78Density

double pr78Density

PR78 overall density kg/m3.

pr78Enthalpy

double pr78Enthalpy

PR78 enthalpy kJ/mol.

pr78GasDensity

double pr78GasDensity

PR78 gas density kg/m3.

pr78GasFraction

double pr78GasFraction

PR78 gas mole fraction.

pr78GasMW

double pr78GasMW

PR78 gas molecular weight g/mol.

pr78GasViscosity

double pr78GasViscosity

PR78 gas viscosity cP.

pr78GasZ

double pr78GasZ

PR78 gas compressibility factor.

pr78LiqDensity

double pr78LiqDensity

PR78 liquid density kg/m3.

pr78LiqViscosity

double pr78LiqViscosity

PR78 liquid viscosity cP.

pr78NumPhases

int pr78NumPhases

PR78 number of phases.

pressureBara

double pressureBara

Pressure in bara.

srkCp

double srkCp

SRK Cp kJ/kgK.

srkDensity

double srkDensity

SRK overall density kg/m3.

srkEnthalpy

double srkEnthalpy

SRK enthalpy kJ/mol.

srkGasDensity

double srkGasDensity

SRK gas density kg/m3.

srkGasFraction

double srkGasFraction

SRK gas mole fraction.

srkGasMW

double srkGasMW

SRK gas molecular weight g/mol.

srkGasViscosity

double srkGasViscosity

SRK gas viscosity cP.

srkGasZ

double srkGasZ

SRK gas compressibility factor.

srkLiqDensity

double srkLiqDensity

SRK liquid density kg/m3.

srkLiqViscosity

double srkLiqViscosity

SRK liquid viscosity cP.

srkNumPhases

int srkNumPhases

SRK number of phases.

temperatureK

double temperatureK

Temperature in Kelvin.

Package neqsim.process.util.event

Class neqsim.process.util.event.ProcessEvent

class ProcessEvent extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

eventId

String eventId

properties

Map<String,Object> properties

severity

ProcessEvent.Severity severity

source

String source

timestamp

Instant timestamp

type

ProcessEvent.EventType type

Class neqsim.process.util.event.ProcessEventBus

class ProcessEventBus extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

asyncDelivery

boolean asyncDelivery

eventHistory

List<ProcessEvent> eventHistory

maxHistorySize

int maxHistorySize

Package neqsim.process.util.exergy

Class neqsim.process.util.exergy.ExergyAnalysisReport

class ExergyAnalysisReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

entries

List<ExergyAnalysisReport.Entry> entries

surroundingTemperatureK

double surroundingTemperatureK

Class neqsim.process.util.exergy.ExergyAnalysisReport.Entry

class Entry extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

area

String area

exergyChangeJ

double exergyChangeJ

exergyDestructionJ

double exergyDestructionJ

name

String name

type

String type

Package neqsim.process.util.export

Class neqsim.process.util.export.ProcessDelta

class ProcessDelta extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

changedValues

Map<String,Double> changedValues

fromSnapshotId

String fromSnapshotId

previousValues

Map<String,Double> previousValues

toSnapshotId

String toSnapshotId

units

Map<String,String> units

Class neqsim.process.util.export.ProcessSnapshot

class ProcessSnapshot extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

additionalState

Map<String,Object> additionalState

description

String description

measurementUnits

Map<String,String> measurementUnits

measurementValues

Map<String,Double> measurementValues

snapshotId

String snapshotId

timestamp

Instant timestamp

Package neqsim.process.util.fielddevelopment

Class neqsim.process.util.fielddevelopment.BiorefineryCostEstimator

class BiorefineryCostEstimator extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

annualFeedstockCostUSD

double annualFeedstockCostUSD

Annual feedstock cost in USD.

annualLabourCostUSD

double annualLabourCostUSD

Annual labour cost in USD.

annualMaintenanceCostUSD

double annualMaintenanceCostUSD

Annual maintenance cost in USD.

annualOpexUSD

double annualOpexUSD

Total annual OPEX in USD.

annualProduction

double annualProduction

Annual product output in product units.

annualRevenueUSD

double annualRevenueUSD

Annual revenue in USD.

annualUtilityConsumptionKWh

double annualUtilityConsumptionKWh

Annual utility consumption in kWh.

annualUtilityCostUSD

double annualUtilityCostUSD

Annual utility cost in USD.

biomassConsumptionTonnesPerYear

double biomassConsumptionTonnesPerYear

Annual biomass consumption in tonnes.

biomassPriceUSDPerTonne

double biomassPriceUSDPerTonne

Biomass feedstock price in USD per tonne.

calculated

boolean calculated

Whether the estimation has been calculated.

contingencyFraction

double contingencyFraction

Project contingency as fraction of installed equipment cost.

costEscalationIndex

double costEscalationIndex

Cost year escalation index (1.0 = base year).

equipmentCapacities

double[] equipmentCapacities

Actual capacity for each equipment item.

equipmentCount

int equipmentCount

Number of equipment items added.

equipmentTypes

BiorefineryCostEstimator.BiorefineryEquipment[] equipmentTypes

Equipment type array.

insuranceFraction

double insuranceFraction

Insurance and overhead fraction of CAPEX per year.

labourCostFraction

double labourCostFraction

Labour cost as fraction of CAPEX per year.

lcoe

double lcoe

Levelised cost of energy/product (LCOE/LCOP).

locationFactor

double locationFactor

Location factor (1.0 = US Gulf Coast baseline).

maintenanceCostFraction

double maintenanceCostFraction

Maintenance cost as fraction of CAPEX per year.

productPrice

double productPrice

Product price per unit (e.g. USD/Nm3 for gas, USD/kg for bio-oil).

productUnit

String productUnit

Product unit description (for display).

totalCapexUSD

double totalCapexUSD

Total CAPEX (installed + contingency) in USD.

totalInstalledCostUSD

double totalInstalledCostUSD

Total installed equipment cost in USD.

totalPurchasedEquipmentCostUSD

double totalPurchasedEquipmentCostUSD

Total purchased equipment cost in USD.

utilityCostUSDPerKWh

double utilityCostUSDPerKWh

Utility cost rate in USD/kWh.

Class neqsim.process.util.fielddevelopment.DCFCalculator

class DCFCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

annualCashFlow

double[] annualCashFlow

annualOpex

double annualOpex

annualProduction

double[] annualProduction

calculated

boolean calculated

capexByYear

double[] capexByYear

cumulativeCashFlow

double[] cumulativeCashFlow

deprecationYears

double deprecationYears

discountedCashFlow

double[] discountedCashFlow

discountRate

double discountRate

inflationRate

double inflationRate

irr

double irr

npv

double npv

opexByYear

double[] opexByYear

paybackYear

int paybackYear

productPrice

double productPrice

profitabilityIndex

double profitabilityIndex

projectLifeYears

int projectLifeYears

royaltyRate

double royaltyRate

taxRate

double taxRate

Class neqsim.process.util.fielddevelopment.FacilityCapacity

class FacilityCapacity extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

capacityIncreaseFactor

double capacityIncreaseFactor

Default capacity increase factor for debottleneck options.

costFactorsByName

Map<String,Double> costFactorsByName

Cost factors by equipment name for CAPEX estimation.

costFactorsByType

Map<Class<?>,Double> costFactorsByType

Cost factors by equipment type for CAPEX estimation.

facility

ProcessSystem facility

Process system representing the surface facility.

nearBottleneckThreshold

double nearBottleneckThreshold

Threshold for near-bottleneck detection.

Class neqsim.process.util.fielddevelopment.FacilityCapacity.CapacityAssessment

class CapacityAssessment extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneckUtilization

double bottleneckUtilization

currentBottleneck

String currentBottleneck

currentMaxRate

double currentMaxRate

debottleneckOptions

List<FacilityCapacity.DebottleneckOption> debottleneckOptions

equipmentHeadroom

Map<String,Double> equipmentHeadroom

feasible

boolean feasible

nearBottlenecks

List<String> nearBottlenecks

rateUnit

String rateUnit

Class neqsim.process.util.fielddevelopment.FacilityCapacity.CapacityPeriod

class CapacityPeriod extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneckEquipment

String bottleneckEquipment

bottleneckUtilization

double bottleneckUtilization

equipmentUtilizations

Map<String,Double> equipmentUtilizations

isFacilityConstrained

boolean isFacilityConstrained

maxFacilityRate

double maxFacilityRate

nearBottlenecks

List<String> nearBottlenecks

periodName

String periodName

rateUnit

String rateUnit

time

double time

timeUnit

String timeUnit

Class neqsim.process.util.fielddevelopment.FacilityCapacity.DebottleneckOption

class DebottleneckOption extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

capex

double capex

currency

String currency

currentCapacity

double currentCapacity

currentUtilization

double currentUtilization

description

String description

equipmentName

String equipmentName

equipmentType

Class<?> equipmentType

incrementalProduction

double incrementalProduction

npv

double npv

paybackYears

double paybackYears

rateUnit

String rateUnit

upgradedCapacity

double upgradedCapacity

Class neqsim.process.util.fielddevelopment.FieldDevelopmentCostEstimator

class FieldDevelopmentCostEstimator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageWellDepth

double averageWellDepth

Average well measured depth in meters.

complexityFactor

double complexityFactor

Complexity factor (1.0 = standard).

conceptType

FieldDevelopmentCostEstimator.ConceptType conceptType

Development concept type.

currencyCode

String currencyCode

Currency code for reporting.

facility

ProcessSystem facility

Process system for cost estimation.

fidelityLevel

FieldDevelopmentCostEstimator.FidelityLevel fidelityLevel

Fidelity level.

includeSubseaCosts

boolean includeSubseaCosts

Include subsea costs.

locationFactor

double locationFactor

Location factor (1.0 = US Gulf Coast).

numberOfInjectors

int numberOfInjectors

Number of injection wells.

numberOfProducers

int numberOfProducers

Number of production wells.

numberOfWells

int numberOfWells

Number of subsea wells for cost estimation.

referenceYear

int referenceYear

Reference year for costs.

subseaTiebackLength

double subseaTiebackLength

Subsea tieback length in km.

waterDepth

double waterDepth

Water depth in meters.

Class neqsim.process.util.fielddevelopment.FieldDevelopmentCostEstimator.EquipmentCostItem

class EquipmentCostItem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

installedCost

double installedCost

manHours

double manHours

name

String name

purchasedCost

double purchasedCost

type

String type

weight

double weight

Class neqsim.process.util.fielddevelopment.FieldDevelopmentCostEstimator.FieldDevelopmentCostReport

class FieldDevelopmentCostReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

accuracyBand

double accuracyBand

conceptName

String conceptName

conceptType

FieldDevelopmentCostEstimator.ConceptType conceptType

costByCategory

Map<String,Double> costByCategory

equipmentItems

List<FieldDevelopmentCostEstimator.EquipmentCostItem> equipmentItems

facilitiesCapex

double facilitiesCapex

fidelityLevel

FieldDevelopmentCostEstimator.FidelityLevel fidelityLevel

footprintArea

double footprintArea

subseaCapex

double subseaCapex

totalCapex

double totalCapex

totalManHours

double totalManHours

totalWeight

double totalWeight

Class neqsim.process.util.fielddevelopment.FieldProductionScheduler

class FieldProductionScheduler extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

discountRate

double discountRate

facility

ProcessSystem facility

Surface facility process system.

gasPrice

double gasPrice

gasPriceUnit

String gasPriceUnit

lowPressureLimit

double lowPressureLimit

minimumRate

double minimumRate

minimumRateUnit

String minimumRateUnit

name

String name

Scheduler name.

oilPrice

double oilPrice

oilPriceUnit

String oilPriceUnit

operatingCostPerYear

double operatingCostPerYear

plateauDuration

double plateauDuration

plateauRate

double plateauRate

plateauRateUnit

String plateauRateUnit

reservoirs

List<FieldProductionScheduler.ReservoirRecord> reservoirs

List of reservoirs in the field.

respectFacilityConstraints

boolean respectFacilityConstraints

trackReservoirDepletion

boolean trackReservoirDepletion

wellScheduler

WellScheduler wellScheduler

Well scheduler for intervention tracking.

Class neqsim.process.util.fielddevelopment.FieldProductionScheduler.ProductionSchedule

class ProductionSchedule extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fieldLifeYears

double fieldLifeYears

fieldName

String fieldName

rateUnit

String rateUnit

startDate

LocalDate startDate

steps

List<FieldProductionScheduler.ScheduleStep> steps

totalGrossRevenue

double totalGrossRevenue

totalNPV

double totalNPV

Class neqsim.process.util.fielddevelopment.FieldProductionScheduler.ReservoirRecord

class ReservoirRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentPressure

double currentPressure

fluidType

String fluidType

initialPressure

double initialPressure

reservoir

SimpleReservoir reservoir

Class neqsim.process.util.fielddevelopment.FieldProductionScheduler.ScheduleStep

class ScheduleStep extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cumulativeGas

double cumulativeGas

cumulativeOil

double cumulativeOil

cumulativeWater

double cumulativeWater

date

LocalDate date

discountedRevenue

double discountedRevenue

facilityUtilization

double facilityUtilization

gasRate

double gasRate

limitingFactor

String limitingFactor

oilRate

double oilRate

reservoirPressure

double reservoirPressure

revenue

double revenue

timeYears

double timeYears

waterRate

double waterRate

wellRates

Map<String,Double> wellRates

Class neqsim.process.util.fielddevelopment.ProductionProfile

class ProductionProfile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

facility

ProcessSystem facility

Process system representing the surface facility.

Class neqsim.process.util.fielddevelopment.ProductionProfile.DeclineParameters

class DeclineParameters extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

declineRate

double declineRate

hyperbolicExponent

double hyperbolicExponent

initialRate

double initialRate

rateUnit

String rateUnit

timeUnit

String timeUnit

type

ProductionProfile.DeclineType type

Class neqsim.process.util.fielddevelopment.ProductionProfile.ProductionForecast

class ProductionForecast extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

actualPlateauDuration

double actualPlateauDuration

actualPlateauRate

double actualPlateauRate

declineParams

ProductionProfile.DeclineParameters declineParams

economicLifeYears

double economicLifeYears

economicLimit

double economicLimit

plateauDuration

double plateauDuration

plateauRate

double plateauRate

profile

List<ProductionProfile.ProductionPoint> profile

totalRecovery

double totalRecovery

Class neqsim.process.util.fielddevelopment.ProductionProfile.ProductionPoint

class ProductionPoint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneckEquipment

String bottleneckEquipment

cumulativeProduction

double cumulativeProduction

facilityUtilization

double facilityUtilization

isAboveEconomicLimit

boolean isAboveEconomicLimit

isOnPlateau

boolean isOnPlateau

rate

double rate

rateUnit

String rateUnit

time

double time

timeUnit

String timeUnit

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis

class SensitivityAnalysis extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseProcess

ProcessSystem baseProcess

Base process system for simulation.

parameters

List<SensitivityAnalysis.UncertainParameter> parameters

List of uncertain parameters.

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis.MonteCarloResult

class MonteCarloResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

convergedCount

int convergedCount

feasibleCount

int feasibleCount

max

double max

mean

double mean

min

double min

mostSensitiveParameters

List<String> mostSensitiveParameters

outputName

String outputName

outputUnit

String outputUnit

p10

double p10

p50

double p50

p90

double p90

stdDev

double stdDev

tornadoSensitivities

Map<String,Double> tornadoSensitivities

trials

List<SensitivityAnalysis.TrialResult> trials

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis.SensitivityConfig

class SensitivityConfig extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

convergenceTolerance

double convergenceTolerance

includeBaseCase

boolean includeBaseCase

numberOfTrials

int numberOfTrials

parallel

boolean parallel

parallelThreads

int parallelThreads

randomSeed

long randomSeed

useFixedSeed

boolean useFixedSeed

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis.SpiderPoint

class SpiderPoint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

normalizedParameter

double normalizedParameter

outputValue

double outputValue

parameterValue

double parameterValue

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis.TrialResult

class TrialResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneck

String bottleneck

converged

boolean converged

feasible

boolean feasible

outputValue

double outputValue

sampledParameters

Map<String,Double> sampledParameters

trialNumber

int trialNumber

Class neqsim.process.util.fielddevelopment.SensitivityAnalysis.UncertainParameter

class UncertainParameter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

distribution

SensitivityAnalysis.DistributionType distribution

name

String name

p10

double p10

p50

double p50

p90

double p90

unit

String unit

Class neqsim.process.util.fielddevelopment.SustainabilityMetrics

class SustainabilityMetrics extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

biogasProductionNm3PerYear

double biogasProductionNm3PerYear

Biogas production in Nm3/year.

biomethaneProductionNm3PerYear

double biomethaneProductionNm3PerYear

Production of biomethane for grid injection in Nm3/year.

calculated

boolean calculated

Whether metrics have been calculated.

carbonIntensityKgCO2PerMWh

double carbonIntensityKgCO2PerMWh

Carbon intensity in kgCO2eq/MWh.

customEmissions

List<SustainabilityMetrics.EmissionEntry> customEmissions

List of custom emission entries.

dieselConsumptionLPerYear

double dieselConsumptionLPerYear

Diesel consumption for feedstock transport in litres/year.

digestateNitrogenKgPerYear

double digestateNitrogenKgPerYear

Nitrogen content in digestate in kg N/year.

electricityProductionMWhPerYear

double electricityProductionMWhPerYear

Gross electricity production in MWh/year.

energyReturnOnInvestment

double energyReturnOnInvestment

Energy return on investment (EROI).

feedstockTransportDistanceKm

double feedstockTransportDistanceKm

Feedstock transport distance in km.

feedstockTransportTonnesPerYear

double feedstockTransportTonnesPerYear

Feedstock transport tonnage per year.

fossilFuelDisplacementTCO2PerYear

double fossilFuelDisplacementTCO2PerYear

Fossil fuel displacement in tCO2eq/year.

fossilGasEmissionFactor

double fossilGasEmissionFactor

Emission factor for displaced fossil gas (natural gas) in kgCO2/Nm3.

fossilHeatEmissionFactor

double fossilHeatEmissionFactor

Emission factor for displaced fossil heat in kgCO2/kWh.

fossilReferenceEmissionFactor

double fossilReferenceEmissionFactor

Emission factor for displaced fossil energy in kgCO2/kWh.

gridElectricityEmissionFactor

double gridElectricityEmissionFactor

Grid electricity emission factor in kgCO2/kWh.

heatProductionMWhPerYear

double heatProductionMWhPerYear

Gross heat production in MWh/year.

importedElectricityMWhPerYear

double importedElectricityMWhPerYear

External (grid) electricity imported in MWh/year.

methaneContentFraction

double methaneContentFraction

Methane content fraction (0-1) in biogas.

methaneSlipPercent

double methaneSlipPercent

Methane slip as percent of total methane produced.

n2oEmissionFraction

double n2oEmissionFraction

N2O emission from digestate field application as fraction of N content.

netCarbonBalanceTCO2PerYear

double netCarbonBalanceTCO2PerYear

Net carbon balance in tCO2eq/year.

netEnergyProductionMWhPerYear

double netEnergyProductionMWhPerYear

Net energy production in MWh/year.

parasiticElectricityMWhPerYear

double parasiticElectricityMWhPerYear

Parasitic electricity consumption in MWh/year.

parasiticHeatMWhPerYear

double parasiticHeatMWhPerYear

Parasitic heat consumption in MWh/year.

renewableEnergyFraction

double renewableEnergyFraction

Renewable energy fraction (0-1).

totalEmissionsTCO2eqPerYear

double totalEmissionsTCO2eqPerYear

Total CO2-equivalent emissions in tCO2eq/year.

transportEmissionFactor

double transportEmissionFactor

Emission factor for transport in kgCO2/(tonne*km).

Class neqsim.process.util.fielddevelopment.WellScheduler

class WellScheduler extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultRateUnit

String defaultRateUnit

Default rate unit for wells.

facility

ProcessSystem facility

Surface facility process system (may be null).

reservoir

SimpleReservoir reservoir

Reservoir model (may be null).

wells

Map<String, WellScheduler.WellRecord> wells

Map of well names to well records.

Class neqsim.process.util.fielddevelopment.WellScheduler.Intervention

class Intervention extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cost

double cost

currency

String currency

description

String description

durationDays

int durationDays

expectedProductionGain

double expectedProductionGain

priority

int priority

startDate

LocalDate startDate

type

WellScheduler.InterventionType type

wellName

String wellName

Class neqsim.process.util.fielddevelopment.WellScheduler.ScheduleResult

class ScheduleResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dailyBottleneck

Map<LocalDate, String> dailyBottleneck

dailyFacilityRate

Map<LocalDate, Double> dailyFacilityRate

optimizedSchedule

List<WellScheduler.Intervention> optimizedSchedule

overallAvailability

double overallAvailability

rateUnit

String rateUnit

totalDeferredProduction

double totalDeferredProduction

totalProductionGain

double totalProductionGain

wellUptime

Map<String,Double> wellUptime

Class neqsim.process.util.fielddevelopment.WellScheduler.WellRecord

class WellRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

currentPotential

double currentPotential

currentStatus

WellScheduler.WellStatus currentStatus

originalPotential

double originalPotential

productionHistory

Map<LocalDate, Double> productionHistory

rateUnit

String rateUnit

scheduledInterventions

List<WellScheduler.Intervention> scheduledInterventions

statusHistory

Map<LocalDate, WellScheduler.WellStatus> statusHistory

wellName

String wellName

Package neqsim.process.util.heatintegration

Class neqsim.process.util.heatintegration.PinchAnalyzer

class PinchAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

analyzed

boolean analyzed

coldCompositeCurve

List<double[]> coldCompositeCurve

coldStreams

List<PinchAnalyzer.HeatStream> coldStreams

grandCompositeCurve

List<double[]> grandCompositeCurve

hotCompositeCurve

List<double[]> hotCompositeCurve

hotStreams

List<PinchAnalyzer.HeatStream> hotStreams

matches

List<PinchAnalyzer.HeatExchangerMatch> matches

minApproachTemperature

double minApproachTemperature

minColdUtilityDuty

double minColdUtilityDuty

minHotUtilityDuty

double minHotUtilityDuty

pinchTemperature

double pinchTemperature

processSystem

ProcessSystem processSystem

Class neqsim.process.util.heatintegration.PinchAnalyzer.HeatExchangerMatch

class HeatExchangerMatch extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

coldStreamName

String coldStreamName

Cold stream name.

hotStreamName

String hotStreamName

Hot stream name.

lmtd

double lmtd

LMTD in K.

recoverableDuty

double recoverableDuty

Recoverable duty in W.

Class neqsim.process.util.heatintegration.PinchAnalyzer.HeatStream

class HeatStream extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

duty

double duty

Heat duty in W (absolute value).

heatCapacityFlowRate

double heatCapacityFlowRate

Heat capacity flow rate (W/K), estimated from duty and delta T.

isHot

boolean isHot

Whether this is a hot stream (needs cooling).

name

String name

Name of the equipment or stream.

supplyTemperature

double supplyTemperature

Supply temperature in K.

targetTemperature

double targetTemperature

Target temperature in K.

Package neqsim.process.util.optimizer

Class neqsim.process.util.optimizer.BatchStudy

class BatchStudy extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseCase

ProcessSystem baseCase

objectives

Map<String, BatchStudy.ObjectiveDefinition> objectives

parallelism

int parallelism

stopOnFailure

boolean stopOnFailure

studyName

String studyName

variations

List<BatchStudy.ParameterVariation> variations

Class neqsim.process.util.optimizer.BatchStudy.BatchStudyResult

class BatchStudyResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

endTime

Instant endTime

failureCount

int failureCount

results

List<BatchStudy.CaseResult> results

startTime

Instant startTime

studyName

String studyName

successCount

int successCount

totalCases

int totalCases

Class neqsim.process.util.optimizer.BatchStudy.CaseResult

class CaseResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

errorMessage

String errorMessage

failed

boolean failed

objectiveValues

Map<String,Double> objectiveValues

parameters

BatchStudy.ParameterSet parameters

runtime

Duration runtime

Class neqsim.process.util.optimizer.BatchStudy.ObjectiveDefinition

class ObjectiveDefinition extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

direction

BatchStudy.Objective direction

name

String name

Class neqsim.process.util.optimizer.BatchStudy.ParameterSet

class ParameterSet extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

caseId

String caseId

values

Map<String,Double> values

Class neqsim.process.util.optimizer.ConstraintPenaltyCalculator

class ConstraintPenaltyCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraints

List<ProcessConstraint> constraints

All registered constraints.

Class neqsim.process.util.optimizer.ConstraintPenaltyCalculator.ConstraintEvaluation

class ConstraintEvaluation extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

description

String description

margin

double margin

name

String name

penalty

double penalty

satisfied

boolean satisfied

severity

ConstraintSeverityLevel severity

Class neqsim.process.util.optimizer.DebottleneckAnalyzer

class DebottleneckAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

analyzed

boolean analyzed

criticalThreshold

double criticalThreshold

processSystem

ProcessSystem processSystem

rankedEquipment

List<DebottleneckAnalyzer.EquipmentStatus> rankedEquipment

warningThreshold

double warningThreshold

Class neqsim.process.util.optimizer.DebottleneckAnalyzer.EquipmentStatus

class EquipmentStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

currentValue

double currentValue

Current value of the limiting constraint.

designLimit

double designLimit

Design limit of the limiting constraint.

limitingConstraint

String limitingConstraint

Name of the most limiting constraint.

maxUtilization

double maxUtilization

Maximum utilization across all constraints (0.0-1.0+).

name

String name

Equipment name.

status

String status

Status: OK, WARNING, CRITICAL, OVERLOADED.

suggestion

String suggestion

Debottleneck suggestion.

type

String type

Equipment type (class simple name).

Class neqsim.process.util.optimizer.DegradedOperationOptimizer

class DegradedOperationOptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

feedStreamName

String feedStreamName

Name of the feed stream.

flowStepFraction

double flowStepFraction

Flow rate step size for search.

maxIterations

int maxIterations

Maximum optimization iterations.

minFlowFraction

double minFlowFraction

Minimum flow rate as fraction of baseline.

optimizeCompressorSpeeds

boolean optimizeCompressorSpeeds

Whether to optimize compressor speeds.

optimizeTemperatures

boolean optimizeTemperatures

Whether to optimize temperatures.

processSystem

ProcessSystem processSystem

The process system to optimize.

productStreamName

String productStreamName

Name of the product stream.

tolerance

double tolerance

Tolerance for optimization convergence.

Class neqsim.process.util.optimizer.DegradedOperationOptimizer.RecoveryAction

class RecoveryAction extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

description

String description

estimatedDuration

double estimatedDuration

phase

DegradedOperationOptimizer.RecoveryAction.Phase phase

Class neqsim.process.util.optimizer.DegradedOperationOptimizer.RecoveryPlan

class RecoveryPlan extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

actions

List<DegradedOperationOptimizer.RecoveryAction> actions

estimatedRecoveryTime

double estimatedRecoveryTime

expectedProductionDuringRecovery

double expectedProductionDuringRecovery

failedEquipment

String failedEquipment

Class neqsim.process.util.optimizer.DegradedOperationResult

class DegradedOperationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baselinePower

double baselinePower

baselineProduction

double baselineProduction

capacityFactor

double capacityFactor

computeTimeMs

long computeTimeMs

converged

boolean converged

failedEquipment

String failedEquipment

failureMode

EquipmentFailureMode failureMode

notes

String notes

operatingMode

DegradedOperationOptimizer.OperatingMode operatingMode

optimalFlowRate

double optimalFlowRate

optimalPower

double optimalPower

optimalProduction

double optimalProduction

optimizedSetpoints

Map<String,Double> optimizedSetpoints

powerSavingsPercent

double powerSavingsPercent

productionLossPercent

double productionLossPercent

Class neqsim.process.util.optimizer.EclipseVFPExporter

class EclipseVFPExporter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ALQs

double[] ALQs

Artificial lift quantities (for gas lift).

BHPTable

double[][][][][] BHPTable

BHP values [flowRate][THP][waterCut][GOR][ALQ].

datumDepth

double datumDepth

Datum depth in meters TVD.

flowRates

double[] flowRates

Flow rates for the table.

flowRateType

String flowRateType

Flow rate type (OIL, LIQ, GAS, WAT, TM).

GORs

double[] GORs

Gas-oil ratios (Sm3/Sm3).

gorType

String gorType

GOR type (GOR, OGR, GLR).

tableNumber

int tableNumber

VFP table number.

tableTitle

String tableTitle

Table title/description.

THPs

double[] THPs

Tubing head pressures (THP) in bara.

unitSystem

String unitSystem

Unit system (METRIC, FIELD).

waterCuts

double[] waterCuts

Water cuts (0-1).

waterCutType

String waterCutType

Water cut type (WCT, WGR).

Class neqsim.process.util.optimizer.EclipseVFPExporter.VFPScenario

class VFPScenario extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

BHPTable

double[][][][][] BHPTable

description

String description

flowRates

double[] flowRates

GORs

double[] GORs

tableNumber

int tableNumber

THPs

double[] THPs

waterCuts

double[] waterCuts

Class neqsim.process.util.optimizer.FlowRateOptimizationResult

class FlowRateOptimizationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

computationTimeMs

long computationTimeMs

constraintViolations

List<FlowRateOptimizationResult.ConstraintViolation> constraintViolations

convergenceError

double convergenceError

flowRate

double flowRate

flowRateUnit

String flowRateUnit

infeasibilityReason

String infeasibilityReason

inletPressure

double inletPressure

iterationCount

int iterationCount

outletPressure

double outletPressure

pressureUnit

String pressureUnit

status

FlowRateOptimizationResult.Status status

targetInletPressure

double targetInletPressure

targetOutletPressure

double targetOutletPressure

Class neqsim.process.util.optimizer.FlowRateOptimizationResult.ConstraintViolation

class ConstraintViolation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

constraintName

String constraintName

currentValue

double currentValue

equipmentName

String equipmentName

isHardViolation

boolean isHardViolation

limitValue

double limitValue

unit

String unit

Class neqsim.process.util.optimizer.FlowRateOptimizer

class FlowRateOptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoConfigureProcessCompressors

boolean autoConfigureProcessCompressors

autoGenerateCompressorChart

boolean autoGenerateCompressorChart

baseFluid

SystemInterface baseFluid

checkCapacityConstraints

boolean checkCapacityConstraints

enableParallelEvaluation

boolean enableParallelEvaluation

enableProgressLogging

boolean enableProgressLogging

initialFlowGuess

double initialFlowGuess

inletStream

StreamInterface inletStream

inletStreamName

String inletStreamName

maxEquipmentUtilization

double maxEquipmentUtilization

maxFlowRate

double maxFlowRate

maxIterations

int maxIterations

maxPowerLimit

double maxPowerLimit

maxSpeedLimit

double maxSpeedLimit

maxTotalPowerLimit

double maxTotalPowerLimit

maxVelocity

double maxVelocity

minFlowRate

double minFlowRate

minSpeedLimit

double minSpeedLimit

minSurgeMargin

double minSurgeMargin

mode

FlowRateOptimizer.Mode mode

numberOfChartSpeeds

int numberOfChartSpeeds

outletEquipment

ProcessEquipmentInterface outletEquipment

outletStream

StreamInterface outletStream

outletStreamName

String outletStreamName

parallelThreads

int parallelThreads

processModel

ProcessModel processModel

processSystem

ProcessSystem processSystem

solveSpeed

boolean solveSpeed

speedMarginAboveDesign

double speedMarginAboveDesign

tolerance

double tolerance

Class neqsim.process.util.optimizer.FlowRateOptimizer.CompressorOperatingPoint

class CompressorOperatingPoint extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

atStoneWall

boolean atStoneWall

feasible

boolean feasible

flowRate

double flowRate

flowRateUnit

String flowRateUnit

inletPressure

double inletPressure

inSurge

boolean inSurge

outletPressure

double outletPressure

polytropicEfficiency

double polytropicEfficiency

polytropicHead

double polytropicHead

power

double power

pressureUnit

String pressureUnit

speed

double speed

surgeMargin

double surgeMargin

Class neqsim.process.util.optimizer.FlowRateOptimizer.EquipmentUtilizationData

class EquipmentUtilizationData extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

capacity

double capacity

duty

double duty

equipmentType

String equipmentType

name

String name

power

double power

speed

double speed

stonewallMargin

double stonewallMargin

surgeMargin

double surgeMargin

utilization

double utilization

Class neqsim.process.util.optimizer.FlowRateOptimizer.LiftCurveConfiguration

class LiftCurveConfiguration extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

enableProgressLogging

boolean enableProgressLogging

flowRateUnit

String flowRateUnit

generateCapacityTable

boolean generateCapacityTable

generateLiftCurveTable

boolean generateLiftCurveTable

generatePerformanceTable

boolean generatePerformanceTable

maxFlowRate

double maxFlowRate

maxInletPressure

double maxInletPressure

maxOutletPressure

double maxOutletPressure

maxPowerLimit

double maxPowerLimit

maxSpeedLimit

double maxSpeedLimit

maxTotalPowerLimit

double maxTotalPowerLimit

maxUtilization

double maxUtilization

minFlowRate

double minFlowRate

minInletPressure

double minInletPressure

minOutletPressure

double minOutletPressure

minSpeedLimit

double minSpeedLimit

numFlowRatePoints

int numFlowRatePoints

numInletPressurePoints

int numInletPressurePoints

numOutletPressurePoints

int numOutletPressurePoints

pressureUnit

String pressureUnit

surgeMargin

double surgeMargin

Class neqsim.process.util.optimizer.FlowRateOptimizer.LiftCurveResult

class LiftCurveResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

capacityTable

FlowRateOptimizer.ProcessCapacityTable capacityTable

feasiblePoints

int feasiblePoints

generationTimeMs

long generationTimeMs

liftCurveTable

FlowRateOptimizer.ProcessLiftCurveTable liftCurveTable

performanceTable

FlowRateOptimizer.ProcessPerformanceTable performanceTable

totalEvaluations

int totalEvaluations

warnings

List<String> warnings

Class neqsim.process.util.optimizer.FlowRateOptimizer.ProcessCapacityTable

class ProcessCapacityTable extends Object implements Serializable

serialVersionUID:

1006L

Serialized Fields

compressorNames

List<String> compressorNames

flowRateUnit

String flowRateUnit

inletPressures

double[] inletPressures

maxUtilization

double maxUtilization

operatingPoints

FlowRateOptimizer.ProcessOperatingPoint[][] operatingPoints

outletPressures

double[] outletPressures

pressureUnit

String pressureUnit

tableName

String tableName

Class neqsim.process.util.optimizer.FlowRateOptimizer.ProcessLiftCurveTable

class ProcessLiftCurveTable extends Object implements Serializable

serialVersionUID:

1006L

Serialized Fields

compressorNames

List<String> compressorNames

flowRates

double[] flowRates

flowRateUnit

String flowRateUnit

inletPressures

double[] inletPressures

operatingPoints

FlowRateOptimizer.ProcessOperatingPoint[][] operatingPoints

pressureUnit

String pressureUnit

tableName

String tableName

Class neqsim.process.util.optimizer.FlowRateOptimizer.ProcessOperatingPoint

class ProcessOperatingPoint extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

compressorPoints

Map<String, FlowRateOptimizer.CompressorOperatingPoint> compressorPoints

constraintViolations

List<FlowRateOptimizationResult.ConstraintViolation> constraintViolations

equipmentData

Map<String, FlowRateOptimizer.EquipmentUtilizationData> equipmentData

feasible

boolean feasible

flowRate

double flowRate

flowRateUnit

String flowRateUnit

inletPressure

double inletPressure

maxUtilization

double maxUtilization

outletPressure

double outletPressure

pressureUnit

String pressureUnit

totalPower

double totalPower

Class neqsim.process.util.optimizer.FlowRateOptimizer.ProcessPerformanceTable

class ProcessPerformanceTable extends Object implements Serializable

serialVersionUID:

1005L

Serialized Fields

compressorNames

List<String> compressorNames

flowRates

double[] flowRates

flowRateUnit

String flowRateUnit

inletPressure

double inletPressure

operatingPoints

FlowRateOptimizer.ProcessOperatingPoint[] operatingPoints

pressureUnit

String pressureUnit

tableName

String tableName

Class neqsim.process.util.optimizer.FluidMagicInput

class FluidMagicInput extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

baseCaseGOR

double baseCaseGOR

gasPhase

SystemInterface gasPhase

gasStdVolume

double gasStdVolume

gorSpacing

FluidMagicInput.GORSpacing gorSpacing

maxGOR

double maxGOR

maxWaterCut

double maxWaterCut

minGOR

double minGOR

minWaterCut

double minWaterCut

numberOfGORPoints

int numberOfGORPoints

numberOfWaterCutPoints

int numberOfWaterCutPoints

oilPhase

SystemInterface oilPhase

oilStdVolume

double oilStdVolume

pressure

double pressure

referenceFluid

SystemInterface referenceFluid

temperature

double temperature

waterPhase

SystemInterface waterPhase

waterSalinityPPM

double waterSalinityPPM

waterStdVolume

double waterStdVolume

Class neqsim.process.util.optimizer.LiftCurveGenerator

class LiftCurveGenerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseFluid

SystemInterface baseFluid

Base fluid for calculations.

checkConstraints

boolean checkConstraints

Whether to check capacity constraints.

maxVelocity

double maxVelocity

Maximum velocity constraint in m/s.

optimizer

FlowRateOptimizer optimizer

The underlying flow rate optimizer.

processModel

ProcessModel processModel

ProcessModel being analyzed (if in process model mode).

processSystem

ProcessSystem processSystem

ProcessSystem being analyzed (if in process system mode).

tableName

String tableName

Table name for generated tables.

Class neqsim.process.util.optimizer.LiftCurveTable

class LiftCurveTable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bhpValues

double[][] bhpValues

BHP (inlet pressure) matrix [flowIndex][thpIndex].

comments

String comments

Optional comments/metadata.

flowRates

double[] flowRates

Flow rate values - row headers.

flowRateUnit

String flowRateUnit

Unit for flow rates.

pressureUnit

String pressureUnit

Unit for THP and BHP pressures.

tableName

String tableName

Table name/identifier.

thpValues

double[] thpValues

THP (outlet pressure) values - column headers.

Class neqsim.process.util.optimizer.MonteCarloSimulator

class MonteCarloSimulator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseProcess

ProcessSystem baseProcess

Base process system to clone for each iteration.

iterations

int iterations

Number of Monte Carlo iterations.

outputName

String outputName

Output extractor name.

parameters

List<MonteCarloSimulator.UncertainParameter> parameters

Uncertain input parameters.

random

Random random

Random number generator.

Class neqsim.process.util.optimizer.MonteCarloSimulator.MonteCarloResult

class MonteCarloResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

failCount

int failCount

outputName

String outputName

parameters

List<MonteCarloSimulator.UncertainParameter> parameters

sortedValues

double[] sortedValues

successCount

int successCount

tornado

List<MonteCarloSimulator.TornadoEntry> tornado

totalIterations

int totalIterations

Class neqsim.process.util.optimizer.MonteCarloSimulator.TornadoEntry

class TornadoEntry extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

highResult

double highResult

Output value when parameter is at high end.

lowResult

double lowResult

Output value when parameter is at low end.

parameter

String parameter

Parameter description.

swing

double swing

Absolute swing (|high - low|).

Class neqsim.process.util.optimizer.MultiObjectiveOptimizer

class MultiObjectiveOptimizer extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

includeInfeasible

boolean includeInfeasible

Whether to include infeasible solutions in the front.

Class neqsim.process.util.optimizer.MultiObjectiveOptimizer.MultiObjectiveResult

class MultiObjectiveResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

computationTimeMs

long computationTimeMs

kneePoint

ParetoSolution kneePoint

method

String method

objectives

List<ObjectiveFunction> objectives

paretoFront

ParetoFront paretoFront

Class neqsim.process.util.optimizer.MultiScenarioVFPGenerator

class MultiScenarioVFPGenerator extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

enableParallel

boolean enableParallel

feedStreamName

String feedStreamName

flashGenerator

RecombinationFlashGenerator flashGenerator

flowRates

double[] flowRates

flowRateUnit

String flowRateUnit

GORs

double[] GORs

inletTemperature

double inletTemperature

maxInletPressure

double maxInletPressure

minInletPressure

double minInletPressure

numberOfWorkers

int numberOfWorkers

outletPressures

double[] outletPressures

outletStreamName

String outletStreamName

pressureTolerance

double pressureTolerance

vfpTable

MultiScenarioVFPGenerator.VFPTable vfpTable

waterCuts

double[] waterCuts

Class neqsim.process.util.optimizer.MultiScenarioVFPGenerator.VFPTable

class VFPTable extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

bhpTable

double[][][][] bhpTable

feasible

boolean[][][][] feasible

flowRates

double[] flowRates

flowRateUnit

String flowRateUnit

GORs

double[] GORs

outletPressures

double[] outletPressures

waterCuts

double[] waterCuts

Class neqsim.process.util.optimizer.OptimizationResultBase

class OptimizationResultBase extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottleneckConstraint

String bottleneckConstraint

bottleneckEquipment

String bottleneckEquipment

constraintEvaluations

int constraintEvaluations

constraintMargins

Map<String,Double> constraintMargins

constraintViolations

List<OptimizationResultBase.ConstraintViolation> constraintViolations

converged

boolean converged

endTimeMillis

long endTimeMillis

errorMessage

String errorMessage

functionEvaluations

int functionEvaluations

initialValues

Map<String,Double> initialValues

iterations

int iterations

objective

String objective

objectiveValue

double objectiveValue

optimalValue

double optimalValue

optimalValues

Map<String,Double> optimalValues

sensitivities

Map<String,Double> sensitivities

shadowPrices

Map<String,Double> shadowPrices

startTimeMillis

long startTimeMillis

status

OptimizationResultBase.Status status

Class neqsim.process.util.optimizer.OptimizationResultBase.ConstraintViolation

class ConstraintViolation extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

constraintName

String constraintName

currentValue

double currentValue

equipmentName

String equipmentName

isHardConstraint

boolean isHardConstraint

limitValue

double limitValue

unit

String unit

Class neqsim.process.util.optimizer.ParetoFront

class ParetoFront extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

feasibleOnly

boolean feasibleOnly

Whether to only keep feasible solutions.

solutions

List<ParetoSolution> solutions

The non-dominated solutions.

Class neqsim.process.util.optimizer.ParetoSolution

class ParetoSolution extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

decisionVariables

Map<String,Double> decisionVariables

Decision variables that produced this solution.

feasible

boolean feasible

Whether this solution is feasible (satisfies all hard constraints).

metadata

Map<String,Object> metadata

Additional metadata.

objectiveNames

String[] objectiveNames

Objective names corresponding to values.

objectiveUnits

String[] objectiveUnits

Objective units for display.

objectiveValues

double[] objectiveValues

Objective values (normalized: higher is always better).

rawObjectiveValues

double[] rawObjectiveValues

Raw (non-normalized) objective values.

Class neqsim.process.util.optimizer.PressureBoundaryOptimizer

class PressureBoundaryOptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoConfigureCompressors

boolean autoConfigureCompressors

compressors

List<Compressor> compressors

compressorsConfigured

boolean compressorsConfigured

feedStream

StreamInterface feedStream

maxFlowRate

double maxFlowRate

maxIterations

int maxIterations

maxPowerLimit

double maxPowerLimit

maxSpeedLimit

double maxSpeedLimit

maxUtilization

double maxUtilization

minFlowRate

double minFlowRate

minSpeedLimit

double minSpeedLimit

minSurgeMargin

double minSurgeMargin

outletStream

StreamInterface outletStream

pressureTolerance

double pressureTolerance

process

ProcessSystem process

rateUnit

String rateUnit

tolerance

double tolerance

Class neqsim.process.util.optimizer.PressureBoundaryOptimizer.LiftCurveTable

class LiftCurveTable extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

bottlenecks

String[][] bottlenecks

flowRates

double[][] flowRates

inletPressures

double[] inletPressures

outletPressures

double[] outletPressures

powers

double[][] powers

pressureUnit

String pressureUnit

rateUnit

String rateUnit

tableName

String tableName

Class neqsim.process.util.optimizer.ProcessConstraintEvaluator

class ProcessConstraintEvaluator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cacheTTLMillis

long cacheTTLMillis

Cache TTL in milliseconds.

cachingEnabled

boolean cachingEnabled

Whether caching is enabled.

processSystem

ProcessSystem processSystem

The process system to evaluate.

sensitivityStepSize

double sensitivityStepSize

Step size for finite difference sensitivity calculations.

Class neqsim.process.util.optimizer.ProcessConstraintEvaluator.CachedConstraints

class CachedConstraints extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

cachedResults

Map<String,Double> cachedResults

flowRate

double flowRate

timestamp

long timestamp

ttlMillis

long ttlMillis

valid

boolean valid

Class neqsim.process.util.optimizer.ProcessConstraintEvaluator.ConstraintEvaluationResult

class ConstraintEvaluationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

allHardConstraintsSatisfied

boolean allHardConstraintsSatisfied

allSoftConstraintsSatisfied

boolean allSoftConstraintsSatisfied

bottleneckConstraint

String bottleneckConstraint

bottleneckEquipment

String bottleneckEquipment

bottleneckUtilization

double bottleneckUtilization

equipmentSummaries

Map<String, ProcessConstraintEvaluator.EquipmentConstraintSummary> equipmentSummaries

feasible

boolean feasible

normalizedUtilizations

Map<String,Double> normalizedUtilizations

overallUtilization

double overallUtilization

totalViolationCount

int totalViolationCount

Class neqsim.process.util.optimizer.ProcessConstraintEvaluator.EquipmentConstraintSummary

class EquipmentConstraintSummary extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

bottleneckConstraint

String bottleneckConstraint

constraintCount

int constraintCount

constraintDetails

Map<String,Double> constraintDetails

equipmentName

String equipmentName

equipmentType

String equipmentType

marginToLimit

double marginToLimit

utilization

double utilization

violationCount

int violationCount

withinLimits

boolean withinLimits

Class neqsim.process.util.optimizer.ProcessOptimizationEngine

class ProcessOptimizationEngine extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

armijoC1

double armijoC1

bfgsGradientTolerance

double bfgsGradientTolerance

enforceConstraints

boolean enforceConstraints

Whether to check all constraints during optimization.

feedStreamName

String feedStreamName

Name of the feed stream to vary during optimization.

maxIterations

int maxIterations

Maximum iterations for optimization.

maxLineSearchIterations

int maxLineSearchIterations

outletStreamName

String outletStreamName

Name of the outlet stream to monitor during optimization.

processModule

ProcessModule processModule

The process module to optimize (alternative to processSystem).

processSystem

ProcessSystem processSystem

The process system to optimize.

searchAlgorithm

ProcessOptimizationEngine.SearchAlgorithm searchAlgorithm

Search algorithm to use.

tolerance

double tolerance

Optimization tolerance.

wolfeC2

double wolfeC2

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.ConstraintReport

class ConstraintReport extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

equipmentStatuses

List<ProcessOptimizationEngine.EquipmentConstraintStatus> equipmentStatuses

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.EquipmentConstraintStatus

class EquipmentConstraintStatus extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

bottleneckConstraint

String bottleneckConstraint

constraints

List<CapacityConstraint> constraints

equipmentName

String equipmentName

equipmentType

String equipmentType

utilization

double utilization

withinLimits

boolean withinLimits

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.LiftCurveData

class LiftCurveData extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

points

List<ProcessOptimizationEngine.LiftCurvePoint> points

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.LiftCurvePoint

class LiftCurvePoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

gor

double gor

inletPressure

double inletPressure

maxFlowRate

double maxFlowRate

temperature

double temperature

waterCut

double waterCut

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.OptimizationResult

class OptimizationResult extends Object implements Serializable

serialVersionUID:

2L

Serialized Fields

bottleneck

String bottleneck

constraintViolations

List<String> constraintViolations

converged

boolean converged

errorMessage

String errorMessage

inletPressure

double inletPressure

objective

String objective

optimalValue

double optimalValue

outletPressure

double outletPressure

sensitivity

ProcessOptimizationEngine.SensitivityResult sensitivity

Class neqsim.process.util.optimizer.ProcessOptimizationEngine.SensitivityResult

class SensitivityResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

baseFlow

double baseFlow

constraintMargins

Map<String,Double> constraintMargins

flowBuffer

double flowBuffer

flowGradient

double flowGradient

tightestConstraint

String tightestConstraint

tightestMargin

double tightestMargin

Class neqsim.process.util.optimizer.ProcessSimulationEvaluator

class ProcessSimulationEvaluator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cloneForEvaluation

boolean cloneForEvaluation

Whether to clone process for each evaluation (thread-safe but slower).

constraints

List<ProcessSimulationEvaluator.ConstraintDefinition> constraints

List of constraints.

evaluationCount

int evaluationCount

Counter for number of evaluations.

finiteDifferenceStep

double finiteDifferenceStep

Step size for finite difference gradient estimation.

lastParameters

double[] lastParameters

Last parameter values for cache validation.

objectives

List<ProcessSimulationEvaluator.ObjectiveDefinition> objectives

List of objective functions.

parameters

List<ProcessSimulationEvaluator.ParameterDefinition> parameters

List of parameter definitions.

processSystem

ProcessSystem processSystem

The process system to evaluate.

useRelativeStep

boolean useRelativeStep

Whether to use relative step size for finite differences.

Class neqsim.process.util.optimizer.ProcessSimulationEvaluator.ConstraintDefinition

class ConstraintDefinition extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

equalityTolerance

double equalityTolerance

isHard

boolean isHard

lowerBound

double lowerBound

name

String name

penaltyWeight

double penaltyWeight

type

ProcessSimulationEvaluator.ConstraintDefinition.Type type

unit

String unit

upperBound

double upperBound

Class neqsim.process.util.optimizer.ProcessSimulationEvaluator.EvaluationResult

class EvaluationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

additionalOutputs

Map<String,Double> additionalOutputs

constraintMargins

double[] constraintMargins

constraintValues

double[] constraintValues

errorMessage

String errorMessage

evaluationNumber

int evaluationNumber

evaluationTimeMs

long evaluationTimeMs

feasible

boolean feasible

objectives

double[] objectives

objectivesRaw

double[] objectivesRaw

parameters

double[] parameters

penaltySum

double penaltySum

simulationConverged

boolean simulationConverged

Class neqsim.process.util.optimizer.ProcessSimulationEvaluator.ObjectiveDefinition

class ObjectiveDefinition extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

direction

ProcessSimulationEvaluator.ObjectiveDefinition.Direction direction

name

String name

unit

String unit

weight

double weight

Class neqsim.process.util.optimizer.ProcessSimulationEvaluator.ParameterDefinition

class ParameterDefinition extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

equipmentName

String equipmentName

initialValue

double initialValue

lowerBound

double lowerBound

name

String name

propertyName

String propertyName

unit

String unit

upperBound

double upperBound

Class neqsim.process.util.optimizer.ProductionImpactAnalyzer

class ProductionImpactAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

feedStreamName

String feedStreamName

Name of the feed stream for flow rate calculations.

maxOptimizationIterations

int maxOptimizationIterations

Maximum iterations for optimization.

optimizationTolerance

double optimizationTolerance

Tolerance for flow rate optimization.

optimizeDegradedOperation

boolean optimizeDegradedOperation

Whether to include optimization of degraded operation.

processSystem

ProcessSystem processSystem

The process system to analyze.

productPricePerKg

double productPricePerKg

Product price for economic calculations ($/kg).

productStreamName

String productStreamName

Name of the product/outlet stream for production measurement.

Class neqsim.process.util.optimizer.ProductionImpactResult

class ProductionImpactResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

absoluteLoss

double absoluteLoss

affectedEquipment

List<String> affectedEquipment

analysisComputeTime

double analysisComputeTime

analysisNotes

String analysisNotes

analysisTimestamp

long analysisTimestamp

baselinePower

double baselinePower

baselineProductionRate

double baselineProductionRate

converged

boolean converged

economicLossPerDay

double economicLossPerDay

economicLossPerHour

double economicLossPerHour

equipmentName

String equipmentName

equipmentType

String equipmentType

estimatedRecoveryTime

double estimatedRecoveryTime

failureMode

EquipmentFailureMode failureMode

fullShutdownProduction

double fullShutdownProduction

lossVsFullShutdown

double lossVsFullShutdown

newBottleneck

String newBottleneck

newBottleneckUtilization

double newBottleneckUtilization

optimizedProductionWithFailure

double optimizedProductionWithFailure

optimizedSetpoints

Map<String,Double> optimizedSetpoints

originalBottleneck

String originalBottleneck

originalBottleneckUtilization

double originalBottleneckUtilization

percentLoss

double percentLoss

powerSavings

double powerSavings

powerWithFailure

double powerWithFailure

productionWithFailure

double productionWithFailure

productPricePerKg

double productPricePerKg

recommendationReason

String recommendationReason

recommendedAction

ProductionImpactResult.RecommendedAction recommendedAction

specificEnergyBaseline

double specificEnergyBaseline

specificEnergyWithFailure

double specificEnergyWithFailure

timeToImplementChanges

double timeToImplementChanges

Class neqsim.process.util.optimizer.RecombinationFlashGenerator

class RecombinationFlashGenerator extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

cacheHits

int cacheHits

cacheMisses

int cacheMisses

enableCaching

boolean enableCaching

gasPhase

SystemInterface gasPhase

gasStdVolumePerMole

double gasStdVolumePerMole

oilPhase

SystemInterface oilPhase

oilStdVolumePerMole

double oilStdVolumePerMole

waterPhase

SystemInterface waterPhase

waterStdVolumePerMole

double waterStdVolumePerMole

Class neqsim.process.util.optimizer.SensitivityAnalysis

class SensitivityAnalysis extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseProcess

ProcessSystem baseProcess

Base process system to clone for each evaluation.

currentValue

double currentValue

Current parameter value being set (for use by setter lambda).

maxValue

double maxValue

Maximum value of the parameter range.

minValue

double minValue

Minimum value of the parameter range.

parameterName

String parameterName

Name of the varied parameter.

steps

int steps

Number of steps in the parameter sweep (inclusive of endpoints).

Class neqsim.process.util.optimizer.SensitivityAnalysis.SensitivityResult

class SensitivityResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

outputs

Map<String,double[]> outputs

Output values for each tracked variable.

parameterName

String parameterName

Name of the varied parameter.

parameterValues

double[] parameterValues

Values of the varied parameter.

succeeded

boolean[] succeeded

Whether each step succeeded.

Class neqsim.process.util.optimizer.SQPoptimizer

class SQPoptimizer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

armijoC1

double armijoC1

Armijo sufficient decrease parameter.

finiteDifferenceStep

double finiteDifferenceStep

Step size for finite-difference gradient.

hessian

double[][] hessian

BFGS Hessian approximation (n x n matrix).

lambdaEq

double[] lambdaEq

Lagrange multipliers for equality constraints.

lambdaIneq

double[] lambdaIneq

Lagrange multipliers for inequality constraints.

lowerBounds

double[] lowerBounds

Lower bounds on variables.

maxIterations

int maxIterations

Maximum SQP iterations.

maxLineSearchIterations

int maxLineSearchIterations

Maximum line search iterations.

n

int n

Number of decision variables.

penaltyParameter

double penaltyParameter

Penalty parameter for L1 merit function.

tolerance

double tolerance

Convergence tolerance on KKT conditions.

upperBounds

double[] upperBounds

Upper bounds on variables.

x0

double[] x0

Initial point.

Class neqsim.process.util.optimizer.SQPoptimizer.OptimizationResult

class OptimizationResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

Whether the optimizer converged.

iterations

int iterations

Number of iterations performed.

kktError

double kktError

Final KKT error.

optimalPoint

double[] optimalPoint

Optimal point.

optimalValue

double optimalValue

Optimal objective value.

Package neqsim.process.util.reconciliation

Class neqsim.process.util.reconciliation.DataReconciliationEngine

class DataReconciliationEngine extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

constraintNames

List<String> constraintNames

Optional constraint names for reporting.

constraintRows

List<double[]> constraintRows

Constraint rows (each double[] has length = number of variables).

grossErrorThreshold

double grossErrorThreshold

Gross error detection threshold (z-value). Default 1.96 for 95% confidence. Set to 2.576 for 99%.

variables

List<ReconciliationVariable> variables

Registered reconciliation variables.

Class neqsim.process.util.reconciliation.ReconciliationResult

class ReconciliationResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

chiSquareStatistic

double chiSquareStatistic

Chi-square test statistic for the global test.

computeTimeMs

long computeTimeMs

Computation time in milliseconds.

constraintResidualsAfter

double[] constraintResidualsAfter

Constraint residuals after reconciliation.

constraintResidualsBefore

double[] constraintResidualsBefore

Constraint residuals before reconciliation.

converged

boolean converged

Whether the reconciliation converged successfully.

degreesOfFreedom

int degreesOfFreedom

Degrees of freedom = number of redundant measurements.

errorMessage

String errorMessage

Error message if reconciliation failed.

globalTestPassed

boolean globalTestPassed

Whether the global chi-square test passed. True means no evidence of gross errors at the specified confidence level.

grossErrors

List<ReconciliationVariable> grossErrors

Variables flagged as gross errors.

objectiveValue

double objectiveValue

Weighted sum of squared adjustments (objective function value).

variables

List<ReconciliationVariable> variables

All reconciliation variables with their adjusted values.

Class neqsim.process.util.reconciliation.ReconciliationVariable

class ReconciliationVariable extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

equipmentName

String equipmentName

Optional link to the equipment name in ProcessSystem that this variable measures.

grossError

boolean grossError

Whether this variable was flagged as a gross error.

hasModelValue

boolean hasModelValue

Whether a model value has been set.

measuredValue

double measuredValue

Raw measured value from plant instrumentation.

modelValue

double modelValue

Model-predicted value from process simulation. Optional.

name

String name

Variable name (user-defined identifier).

normalizedResidual

double normalizedResidual

Normalized residual after reconciliation (set by engine).

propertyName

String propertyName

Optional property name on the equipment (e.g., "massFlowRate", "temperature", "pressure").

reconciledValue

double reconciledValue

Reconciled (adjusted) value after WLS solution. Set by the engine.

uncertainty

double uncertainty

Measurement uncertainty as standard deviation (sigma).

unit

String unit

Engineering unit string (e.g., "kg/hr", "bara", "C").

Class neqsim.process.util.reconciliation.SteadyStateDetector

class SteadyStateDetector extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

defaultWindowSize

int defaultWindowSize

Default window size for new variables.

requiredFraction

double requiredFraction

Minimum fraction (0-1) of variables that must be at steady state for the overall verdict. Default 1.0 (all variables must be steady).

requireFullWindow

boolean requireFullWindow

Whether a full window is required before declaring steady state. Default true.

rThreshold

double rThreshold

R-statistic threshold. A variable is at steady state if R >= this threshold. Default 0.5 (Cao-Rhinehart recommended range 0.1-1.0; 0.5 is a good balance).

slopeThreshold

double slopeThreshold

Maximum allowed slope (units per sample). If > 0 and |slope| exceeds this, the variable is not at steady state. Default 0 (disabled).

stdDevThreshold

double stdDevThreshold

Maximum allowed standard deviation. If > 0 and std.dev exceeds this, the variable is not at steady state. Default 0 (disabled).

variableList

List<SteadyStateVariable> variableList

Ordered list of variables (preserves insertion order).

variableMap

Map<String, SteadyStateVariable> variableMap

Registered variables, keyed by name.

Class neqsim.process.util.reconciliation.SteadyStateResult

class SteadyStateResult extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

atSteadyState

boolean atSteadyState

Whether the overall process is at steady state (all variables pass).

rThreshold

double rThreshold

Minimum R-statistic threshold used.

slopeThreshold

double slopeThreshold

Maximum slope threshold used.

steadyCount

int steadyCount

Number of variables at steady state.

timestamp

long timestamp

Timestamp (epoch ms) of the evaluation.

transientCount

int transientCount

Number of variables not at steady state.

transientVariables

List<SteadyStateVariable> transientVariables

Variables that failed the SSD test.

variables

List<SteadyStateVariable> variables

All monitored variables with their current SSD status.

Class neqsim.process.util.reconciliation.SteadyStateVariable

class SteadyStateVariable extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

atSteadyState

boolean atSteadyState

Whether this variable is currently at steady state.

mean

double mean

Current mean of the window.

name

String name

Variable name (tag identifier).

rStatistic

double rStatistic

R-statistic: ratio of filtered variance to unfiltered variance. A value near 1.0 indicates steady state; lower values indicate transient behaviour.

slope

double slope

Slope of linear regression through the window values. Near zero indicates steady state; positive or negative values indicate a trend.

standardDeviation

double standardDeviation

Current standard deviation of the window.

uncertainty

double uncertainty

Optional measurement uncertainty (sigma) for linking to reconciliation.

unit

String unit

Engineering unit string (e.g., "kg/hr", "bara", "C").

window

List<Double> window

Sliding window of recent values.

windowSize

int windowSize

Maximum window size.

Package neqsim.process.util.report

Class neqsim.process.util.report.HeatMaterialBalance

class HeatMaterialBalance extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

flowUnit

String flowUnit

Unit for mass flow display.

pressureUnit

String pressureUnit

Unit for pressure display.

process

ProcessSystem process

The process system to report on.

temperatureUnit

String temperatureUnit

Unit for temperature display.

Class neqsim.process.util.report.ProcessValidator

class ProcessValidator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

issues

List<ProcessValidator.ValidationIssue> issues

massBalanceTolerance

double massBalanceTolerance

maxPressure

double maxPressure

maxTemperature

double maxTemperature

minPressure

double minPressure

minTemperature

double minTemperature

processSystem

ProcessSystem processSystem

validated

boolean validated

Class neqsim.process.util.report.ProcessValidator.ValidationIssue

class ValidationIssue extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

location

String location

Equipment or stream name.

message

String message

Description of the issue.

severity

ProcessValidator.Severity severity

Severity of the issue.

value

double value

Current value that triggered the issue.

Package neqsim.process.util.sensitivity

Class neqsim.process.util.sensitivity.ProcessSensitivityAnalyzer

class ProcessSensitivityAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

inputSpecs

List<ProcessSensitivityAnalyzer.VariableSpec> inputSpecs

Input variable specifications.

minimumPerturbation

double minimumPerturbation

Minimum absolute perturbation.

outputSpecs

List<ProcessSensitivityAnalyzer.VariableSpec> outputSpecs

Output variable specifications.

processSystem

ProcessSystem processSystem

The process system to analyze.

relativePerturbation

double relativePerturbation

Relative perturbation size for finite differences.

useCentralDifferences

boolean useCentralDifferences

Whether to use central differences (more accurate but 2x cost).

Class neqsim.process.util.sensitivity.ProcessSensitivityAnalyzer.VariableSpec

class VariableSpec extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

equipmentName

String equipmentName

propertyName

String propertyName

unit

String unit

Package neqsim.process.util.topology

Class neqsim.process.util.topology.DependencyAnalyzer

class DependencyAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

crossDependencies

Map<String, List<DependencyAnalyzer.CrossInstallationDependency>> crossDependencies

impactAnalyzer

ProductionImpactAnalyzer impactAnalyzer

processSystem

ProcessSystem processSystem

topologyAnalyzer

ProcessTopologyAnalyzer topologyAnalyzer

Class neqsim.process.util.topology.DependencyAnalyzer.CrossInstallationDependency

class CrossInstallationDependency extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dependencyType

String dependencyType

impactFactor

double impactFactor

sourceEquipment

String sourceEquipment

sourceInstallation

String sourceInstallation

sourceLocation

FunctionalLocation sourceLocation

targetEquipment

String targetEquipment

targetInstallation

String targetInstallation

targetLocation

FunctionalLocation targetLocation

Class neqsim.process.util.topology.DependencyAnalyzer.DependencyResult

class DependencyResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

crossInstallationEffects

List<DependencyAnalyzer.CrossInstallationDependency> crossInstallationEffects

directlyAffected

List<String> directlyAffected

equipmentToWatch

List<String> equipmentToWatch

failedEquipment

String failedEquipment

failedLocation

FunctionalLocation failedLocation

increasedCriticality

Map<String,Double> increasedCriticality

indirectlyAffected

List<String> indirectlyAffected

productionImpactByEquipment

Map<String,Double> productionImpactByEquipment

totalProductionLoss

double totalProductionLoss

Class neqsim.process.util.topology.FunctionalLocation

class FunctionalLocation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

area

String area

description

String description

equipmentTypeCode

String equipmentTypeCode

fullTag

String fullTag

installationCode

String installationCode

installationName

String installationName

sequentialNumber

String sequentialNumber

subsystem

String subsystem

system

String system

trainSuffix

String trainSuffix

Class neqsim.process.util.topology.ProcessTopologyAnalyzer

class ProcessTopologyAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

criticalPath

List<String> criticalPath

edges

List<ProcessTopologyAnalyzer.ProcessEdge> edges

functionalLocations

Map<String, FunctionalLocation> functionalLocations

nodes

Map<String, ProcessTopologyAnalyzer.EquipmentNode> nodes

parallelGroups

List<List<String>> parallelGroups

processSystem

ProcessSystem processSystem

topologicalOrder

Map<String,Integer> topologicalOrder

Class neqsim.process.util.topology.ProcessTopologyAnalyzer.EquipmentNode

class EquipmentNode extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

criticality

double criticality

downstreamEquipment

List<String> downstreamEquipment

equipmentType

String equipmentType

functionalLocation

FunctionalLocation functionalLocation

isCritical

boolean isCritical

name

String name

parallelEquipment

List<String> parallelEquipment

topologicalOrder

int topologicalOrder

upstreamEquipment

List<String> upstreamEquipment

Class neqsim.process.util.topology.ProcessTopologyAnalyzer.ProcessEdge

class ProcessEdge extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fromEquipment

String fromEquipment

streamName

String streamName

streamType

String streamType

toEquipment

String toEquipment

Package neqsim.process.util.uncertainty

Class neqsim.process.util.uncertainty.SensitivityMatrix

class SensitivityMatrix extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

inputIndex

Map<String,Integer> inputIndex

inputVariables

String[] inputVariables

jacobian

double[][] jacobian

outputIndex

Map<String,Integer> outputIndex

outputVariables

String[] outputVariables

Class neqsim.process.util.uncertainty.UncertaintyResult

class UncertaintyResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

convergenceMetric

double convergenceMetric

monteCarloSamples

int monteCarloSamples

outputUncertainties

Map<String, UncertaintyBounds> outputUncertainties

sensitivityMatrix

SensitivityMatrix sensitivityMatrix

Package neqsim.pvtsimulation.flowassurance

Class neqsim.pvtsimulation.flowassurance.BariteCelestiteSolidSolution

class BariteCelestiteSolidSolution extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

aBa

double aBa

Aqueous Ba2+ activity (mol/kg * gamma).

aSO4

double aSO4

Aqueous SO4 2- activity (mol/kg * gamma).

aSr

double aSr

Aqueous Sr2+ activity (mol/kg * gamma).

calculated

boolean calculated

Whether calculation has been performed.

kspBaSO4

double kspBaSO4

Ksp of pure BaSO4 at current T.

kspSrSO4

double kspSrSO4

Ksp of pure SrSO4 at current T.

margules

double margules

Margules parameter W/(RT) for (Ba,Sr)SO4 solid solution. Typical value 2.1-2.5 from Prieto et al. (1993). Dimensionless (W/RT at 25°C).

temperatureK

double temperatureK

Temperature in Kelvin.

totalSI

double totalSI

Total saturation index of the solid solution.

xBa

double xBa

Mole fraction of BaSO4 in the solid solution.

Class neqsim.pvtsimulation.flowassurance.CO2CorrosionAnalyzer

class CO2CorrosionAnalyzer extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

aqueousPH

double aqueousPH

Aqueous phase pH from electrolyte CPA.

baselineCorrosionRate

double baselineCorrosionRate

Baseline (uncorrected) corrosion rate (mm/yr).

clMinusMoleFraction

double clMinusMoleFraction

Cl- mole fraction.

co2InAqueous

double co2InAqueous

CO2 mole fraction dissolved in aqueous phase.

co2MoleFraction

double co2MoleFraction

CO2 mole fraction in the overall feed.

co2PartialPressure

double co2PartialPressure

CO2 partial pressure in bar (from flash).

corrosionModel

DeWaardMilliamsCorrosion corrosionModel

The DeWaardMilliams model used internally.

corrosionRate

double corrosionRate

Corrected corrosion rate (mm/yr).

corrosionSeverity

String corrosionSeverity

Corrosion severity.

flowVelocity

double flowVelocity

Flow velocity in m/s.

freeWaterPresent

boolean freeWaterPresent

Whether free water is present.

glycolFraction

double glycolFraction

Glycol weight fraction in aqueous phase (0 to 1).

h2sMoleFraction

double h2sMoleFraction

H2S mole fraction in the overall feed.

h2sPartialPressure

double h2sPartialPressure

H2S partial pressure in bar (from flash).

hasRun

boolean hasRun

Whether the analysis has been run.

inhibitorEfficiency

double inhibitorEfficiency

Chemical inhibitor efficiency (0 to 1).

methaneMoleFraction

double methaneMoleFraction

Methane mole fraction in the overall feed.

n2MoleFraction

double n2MoleFraction

N2 mole fraction in the overall feed.

naPlusMoleFraction

double naPlusMoleFraction

Na+ mole fraction.

numberOfPhases

int numberOfPhases

Number of phases from the flash.

pipeDiameter

double pipeDiameter

Pipe internal diameter in metres.

pressureBara

double pressureBara

Total pressure in bara.

scaleCalculator

ScalePredictionCalculator scaleCalculator

The ScalePredictionCalculator used internally.

temperatureC

double temperatureC

Temperature in Celsius.

waterMoleFraction

double waterMoleFraction

Water mole fraction in the overall feed.

Class neqsim.pvtsimulation.flowassurance.DeWaardMilliamsCorrosion

class DeWaardMilliamsCorrosion extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2PartialPressure

double co2PartialPressure

CO2 partial pressure in bar.

flowVelocity

double flowVelocity

Flow velocity in m/s.

glycolFraction

double glycolFraction

Glycol weight fraction in aqueous phase (0 to 1).

h2sPartialPressure

double h2sPartialPressure

H2S partial pressure in bar.

inhibitorEfficiency

double inhibitorEfficiency

Chemical inhibitor efficiency (0 to 1).

pH

double pH

pH of the aqueous phase.

pipeDiameter

double pipeDiameter

Pipe internal diameter in metres.

sulfurDepositionRate

double sulfurDepositionRate

Elemental sulfur (S8) mass deposition rate on pipe wall in kg/(m2*yr).

temperatureC

double temperatureC

Temperature in degrees Celsius.

totalPressure

double totalPressure

Total system pressure in bara.

useFlowCorrection

boolean useFlowCorrection

Whether to apply flow velocity correction.

usePHCorrection

boolean usePHCorrection

Whether to apply pH correction factor.

useScaleCorrection

boolean useScaleCorrection

Whether to apply protective scale correction.

Class neqsim.pvtsimulation.flowassurance.EmulsionViscosityCalculator

class EmulsionViscosityCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

demulsifierEfficiency

double demulsifierEfficiency

Demulsifier efficiency (0.0 to 1.0).

demulsifierPresent

boolean demulsifierPresent

Whether to apply chemical demulsifier correction (reduces effective viscosity).

effectiveViscosity

double effectiveViscosity

Effective emulsion viscosity in mPa.s (cP).

emulsionType

String emulsionType

Current emulsion type: "W/O" (water-in-oil) or "O/W" (oil-in-water).

interfacialTension

double interfacialTension

Interfacial tension in mN/m.

inversionWaterCut

double inversionWaterCut

Phase inversion water cut (volume fraction).

isInverted

boolean isInverted

Whether the system is currently inverted.

maxPackingFraction

double maxPackingFraction

Maximum packing fraction for dispersed phase (used in Pal-Rhodes).

model

String model

Viscosity model to use: "einstein", "taylor", "brinkman", "pal_rhodes", "woelflin", "richardson".

oilDensity

double oilDensity

Oil density in kg/m3.

oilViscosity

double oilViscosity

Oil (continuous phase) dynamic viscosity in mPa.s (cP).

pressureBara

double pressureBara

Pressure in bara.

relativeViscosity

double relativeViscosity

Relative viscosity from model (mu_eff / mu_continuous).

shearRate

double shearRate

Shear rate in 1/s (affects droplet size and hence viscosity).

temperatureC

double temperatureC

Temperature in degrees Celsius.

tightnessFactor

double tightnessFactor

Emulsion tightness factor (0.0 = loose, 1.0 = tight). Tight emulsions have smaller droplets and higher viscosity.

viscosityRatio

double viscosityRatio

Viscosity ratio (emulsion / continuous phase).

waterCut

double waterCut

Water cut as volume fraction (0.0 to 1.0).

waterDensity

double waterDensity

Water density in kg/m3.

waterViscosity

double waterViscosity

Water (dispersed phase) dynamic viscosity in mPa.s (cP).

Class neqsim.pvtsimulation.flowassurance.ErosionPredictionCalculator

class ErosionPredictionCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

apiCFactor

double apiCFactor

API RP 14E C-factor. 100 for continuous service, 150 for intermittent (imperial units).

bendRadiusRatio

double bendRadiusRatio

Bend radius / pipe diameter ratio for elbows (R/D). Typical: 1.5 for long-radius.

corrosionAllowance

double corrosionAllowance

Corrosion allowance in mm.

cumulativeErosion

double cumulativeErosion

Cumulative erosion over design life in mm.

designLife

double designLife

Design life in years.

erosionalVelocity

double erosionalVelocity

Erosional velocity per API RP 14E in m/s.

erosionRateMmPerYear

double erosionRateMmPerYear

DNV RP O501 erosion rate in mm/year.

gasDensity

double gasDensity

Gas density in kg/m3.

gasVelocity

double gasVelocity

Gas velocity (superficial) in m/s.

geometry

String geometry

Pipe geometry type: "straight", "elbow", "tee", "blind_tee", "reducer", "choke", "weld".

liquidDensity

double liquidDensity

Liquid density in kg/m3.

liquidVelocity

double liquidVelocity

Liquid velocity (superficial) in m/s.

mixtureDensity

double mixtureDensity

Mixture density in kg/m3.

mixtureVelocity

double mixtureVelocity

Mixture velocity in m/s.

mixtureViscosity

double mixtureViscosity

Mixture dynamic viscosity in Pa.s.

pipeDiameter

double pipeDiameter

Internal pipe diameter in metres.

pipeMaterial

String pipeMaterial

Pipe material: "carbon_steel", "duplex_steel", "super_duplex", "13cr", "inconel", "titanium".

remainingWallThickness

double remainingWallThickness

Remaining wall thickness after erosion and corrosion in mm.

riskLevel

String riskLevel

Risk level: "low", "medium", "high", "critical".

sandParticleDensity

double sandParticleDensity

Sand particle density in kg/m3.

sandParticleDiameter

double sandParticleDiameter

Sand particle diameter in mm.

sandRate

double sandRate

Sand production rate in kg/day.

velocityRatio

double velocityRatio

Velocity ratio (actual / erosional).

wallThickness

double wallThickness

Wall thickness in mm.

withinApiLimits

boolean withinApiLimits

Whether the velocity is within API RP 14E limits.

withinErosionLimits

boolean withinErosionLimits

Whether the cumulative erosion is within acceptable limits.

Class neqsim.pvtsimulation.flowassurance.ErosionPredictionCalculator.SandLoadDefaults

class SandLoadDefaults extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

completionType

String completionType

Completion type identifier.

gasPpmWt

double gasPpmWt

Sand load for dry gas flow in ppm wt.

liquidPpmWt

double liquidPpmWt

Sand load for liquid flow in ppm wt.

particleSizeMicrons

double particleSizeMicrons

Assumed particle size in microns.

Class neqsim.pvtsimulation.flowassurance.FlowlineScaleProfile

class FlowlineScaleProfile extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoPH

boolean autoPH

bariumMgL

double bariumMgL

bicarbonateMgL

double bicarbonateMgL

calciumMgL

double calciumMgL

co2PartialPressureBar

double co2PartialPressureBar

inletPressBar

double inletPressBar

inletTempC

double inletTempC

ironMgL

double ironMgL

magnesiumMgL

double magnesiumMgL

numberOfSegments

int numberOfSegments

outletPressBar

double outletPressBar

outletTempC

double outletTempC

pH

double pH

results

List<FlowlineScaleProfile.SegmentResult> results

Results at each segment.

sodiumMgL

double sodiumMgL

strontiumMgL

double strontiumMgL

sulphateMgL

double sulphateMgL

totalDissolvedSolids

double totalDissolvedSolids

Class neqsim.pvtsimulation.flowassurance.FlowlineScaleProfile.SegmentResult

class SegmentResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

distanceFraction

double distanceFraction

Fraction of total distance (0.0 = inlet, 1.0 = outlet).

pressureBar

double pressureBar

Pressure at segment in bara.

siBaSO4

double siBaSO4

BaSO4 saturation index.

siCaCO3

double siCaCO3

CaCO3 saturation index.

siCaSO4

double siCaSO4

CaSO4 saturation index.

siFeCO3

double siFeCO3

FeCO3 saturation index.

siSrSO4

double siSrSO4

SrSO4 saturation index.

temperatureC

double temperatureC

Temperature at segment in Celsius.

Class neqsim.pvtsimulation.flowassurance.HydrateRiskMapper

class HydrateRiskMapper extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

baseFluid

SystemInterface baseFluid

Base fluid composition (will be cloned for each calculation).

criticalSubcoolingK

double criticalSubcoolingK

Critical subcooling threshold in Kelvin/C.

highRiskSubcoolingK

double highRiskSubcoolingK

High risk subcooling threshold in Kelvin/C.

mediumRiskSubcoolingK

double mediumRiskSubcoolingK

Medium risk subcooling threshold in Kelvin/C.

profilePoints

List<HydrateRiskMapper.ProfilePoint> profilePoints

Pipeline profile points.

Class neqsim.pvtsimulation.flowassurance.HydrateRiskMapper.RiskPoint

class RiskPoint extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

actualTemperatureC

double actualTemperatureC

Actual temperature at this point in C.

distanceKm

double distanceKm

Distance from inlet in km.

hydrateTemperatureC

double hydrateTemperatureC

Hydrate formation temperature at this pressure in C.

pressureBara

double pressureBara

Pressure at this point in bara.

riskLevel

HydrateRiskMapper.RiskLevel riskLevel

Risk classification.

subcoolingC

double subcoolingC

Subcooling margin (actual T - hydrate T) in C.

Class neqsim.pvtsimulation.flowassurance.HydrateRiskMapper.RiskProfile

class RiskProfile extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

criticalPointCount

int criticalPointCount

minimumSubcoolingC

double minimumSubcoolingC

overallRisk

HydrateRiskMapper.RiskLevel overallRisk

points

List<HydrateRiskMapper.RiskPoint> points

Class neqsim.pvtsimulation.flowassurance.PipelineCooldownCalculator

class PipelineCooldownCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ambientTemperature

double ambientTemperature

Ambient temperature in Kelvin (seawater or soil).

calculated

boolean calculated

Has been calculated.

coatingThickness

double coatingThickness

External coating thickness in metres.

externalHTC

double externalHTC

External convection coefficient W/m2K (if U-value not set directly).

fluidDensity

double fluidDensity

Fluid density at shutdown in kg/m3.

fluidSpecificHeat

double fluidSpecificHeat

Fluid specific heat in J/kgK.

fluidTemperature

double[] fluidTemperature

Fluid temperature array in Kelvin.

initialFluidTemperature

double initialFluidTemperature

Initial fluid temperature in Kelvin.

insulationConductivity

double insulationConductivity

Insulation thermal conductivity in W/mK.

insulationDensity

double insulationDensity

Insulation density in kg/m3.

insulationSpecificHeat

double insulationSpecificHeat

Insulation specific heat in J/kgK.

insulationThickness

double insulationThickness

Insulation thickness in metres.

internalDiameter

double internalDiameter

Internal diameter in metres.

overallUValue

double overallUValue

Overall heat transfer coefficient W/m2K (referenced to OD).

steelConductivity

double steelConductivity

Steel thermal conductivity in W/mK.

steelDensity

double steelDensity

Steel density in kg/m3.

steelSpecificHeat

double steelSpecificHeat

Steel specific heat in J/kgK.

timeHours

double[] timeHours

Time array in hours.

timeStepMinutes

double timeStepMinutes

Time step in minutes.

totalTimeHours

double totalTimeHours

Total simulation time in hours.

useOverallU

boolean useOverallU

Whether to use overall U-value (true) or calculate from layers (false).

wallTemperature

double[] wallTemperature

Steel wall mean temperature in Kelvin.

wallThickness

double wallThickness

Steel wall thickness in metres.

Class neqsim.pvtsimulation.flowassurance.ScaleMassCalculator

class ScaleMassCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculator

ScalePredictionCalculator calculator

The scale prediction calculator to use for SI calculations.

results

Map<String, ScaleMassCalculator.ScaleMassResult> results

Results map for each scale type.

waterVolumeLitres

double waterVolumeLitres

The water volume in litres.

Class neqsim.pvtsimulation.flowassurance.ScaleMassCalculator.ScaleMassResult

class ScaleMassResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

massMgPerLitre

double massMgPerLitre

Mass precipitated in mg per litre of water.

saturationIndex

double saturationIndex

Saturation index.

scaleType

String scaleType

Scale type name.

totalMassMg

double totalMassMg

Total mass precipitated in mg for the given water volume.

Class neqsim.pvtsimulation.flowassurance.ScalePredictionCalculator

class ScalePredictionCalculator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

autoCalcPH

boolean autoCalcPH

Whether to auto-calculate pH from CO2 (override manual pH).

bariumMgL

double bariumMgL

Barium concentration in mg/L.

bicarbonateMgL

double bicarbonateMgL

Bicarbonate (HCO3-) concentration in mg/L.

calciumMgL

double calciumMgL

Calcium concentration in mg/L.

calculated

boolean calculated

Has been calculated.

co2PartialPressure

double co2PartialPressure

CO2 partial pressure in bar.

ironMgL

double ironMgL

Iron (Fe2+) concentration in mg/L.

magnesiumMgL

double magnesiumMgL

Magnesium concentration in mg/L.

pH

double pH

pH of the water.

pressureBara

double pressureBara

Pressure in bara.

siBaSO4

double siBaSO4

BaSO4 saturation index.

siCaCO3

double siCaCO3

CaCO3 saturation index.

siCaSO4

double siCaSO4

CaSO4 saturation index.

siFeCO3

double siFeCO3

FeCO3 saturation index.

siSrSO4

double siSrSO4

SrSO4 saturation index.

sodiumMgL

double sodiumMgL

Sodium concentration in mg/L.

strontiumMgL

double strontiumMgL

Strontium concentration in mg/L.

sulphateMgL

double sulphateMgL

Sulphate (SO4 2-) concentration in mg/L.

tdsMgL

double tdsMgL

Total dissolved solids in mg/L.

temperatureC

double temperatureC

Temperature in Celsius.

Class neqsim.pvtsimulation.flowassurance.WaterCompatibilityScreener

class WaterCompatibilityScreener extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fwBarium

double fwBarium

fwBicarbonate

double fwBicarbonate

fwCalcium

double fwCalcium

fwCO2pp

double fwCO2pp

fwIron

double fwIron

fwMagnesium

double fwMagnesium

fwPH

double fwPH

fwPressBar

double fwPressBar

fwSodium

double fwSodium

fwStrontium

double fwStrontium

fwSulphate

double fwSulphate

fwTDS

double fwTDS

fwTempC

double fwTempC

iwBarium

double iwBarium

iwBicarbonate

double iwBicarbonate

iwCalcium

double iwCalcium

iwCO2pp

double iwCO2pp

iwIron

double iwIron

iwMagnesium

double iwMagnesium

iwPH

double iwPH

iwPressBar

double iwPressBar

iwSodium

double iwSodium

iwStrontium

double iwStrontium

iwSulphate

double iwSulphate

iwTDS

double iwTDS

iwTempC

double iwTempC

mixingRatios

double[] mixingRatios

Mixing ratios as percentage of injection water (0-100).

results

List<WaterCompatibilityScreener.MixingResult> results

Results at each mixing ratio.

worstCaseRatio

double worstCaseRatio

Worst-case mixing ratio.

worstCaseScale

String worstCaseScale

Worst-case scale type.

worstCaseSI

double worstCaseSI

Worst-case SI value.

Class neqsim.pvtsimulation.flowassurance.WaterCompatibilityScreener.MixingResult

class MixingResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

injectionWaterPct

double injectionWaterPct

Injection water percentage.

siBaSO4

double siBaSO4

BaSO4 saturation index.

siCaCO3

double siCaCO3

CaCO3 saturation index.

siCaSO4

double siCaSO4

CaSO4 saturation index.

siFeCO3

double siFeCO3

FeCO3 saturation index.

siSrSO4

double siSrSO4

SrSO4 saturation index.

Package neqsim.standards

Class neqsim.standards.Standard

class Standard extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

referencePressure

double referencePressure

referenceState

String referenceState

resultTable

String[][] resultTable

salesContract

ContractInterface salesContract

standardDescription

String standardDescription

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

Package neqsim.standards.gasquality

Class neqsim.standards.gasquality.BestPracticeHydrocarbonDewPoint

class BestPracticeHydrocarbonDewPoint extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

dewPointTemperature

double dewPointTemperature

dewPointTemperatureSpec

double dewPointTemperatureSpec

dewPointTemperatureUnit

String dewPointTemperatureUnit

initTemperature

double initTemperature

pressureUnit

String pressureUnit

specPressure

double specPressure

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

Class neqsim.standards.gasquality.Draft_GERG2004

class Draft_GERG2004 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

initTemperature

double initTemperature

specPressure

double specPressure

Class neqsim.standards.gasquality.Draft_ISO18453

class Draft_ISO18453 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

dewPointTemperature

double dewPointTemperature

dewPointTemperatureSpec

double dewPointTemperatureSpec

dewPointTemperatureUnit

String dewPointTemperatureUnit

initTemperature

double initTemperature

pressureUnit

String pressureUnit

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

Class neqsim.standards.gasquality.GasChromotograpyhBase

class GasChromotograpyhBase extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

unit

String unit

Class neqsim.standards.gasquality.Standard_AGA3

class Standard_AGA3 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

betaRatio

double betaRatio

Beta ratio (d/D).

differentialPressure

double differentialPressure

Differential pressure across orifice in Pa.

dischargeCoefficient

double dischargeCoefficient

Discharge coefficient (Cd).

expansionFactor

double expansionFactor

Expansion factor (Y).

flowingDensity

double flowingDensity

Gas density at flowing conditions in kg/m3.

flowingTemperature

double flowingTemperature

Flowing gas temperature in K.

isentropicExponent

double isentropicExponent

Isentropic exponent (kappa).

massFlowRate

double massFlowRate

Calculated mass flow rate in kg/s.

orificeDiameter

double orificeDiameter

Orifice bore diameter in meters.

pipeDiameter

double pipeDiameter

Pipe internal diameter in meters.

reynoldsNumber

double reynoldsNumber

Reynolds number at orifice.

standardDensity

double standardDensity

Gas density at standard conditions in kg/m3.

standardVolumeFlowRate

double standardVolumeFlowRate

Calculated volume flow rate at standard conditions in Sm3/h.

staticPressure

double staticPressure

Static pressure (upstream) in Pa absolute.

tapType

String tapType

Tap type: "flange", "corner", "D-D/2".

velocityOfApproachFactor

double velocityOfApproachFactor

Velocity of approach factor (Ev).

viscosity

double viscosity

Dynamic viscosity at flowing conditions in Pa*s.

Class neqsim.standards.gasquality.Standard_AGA7

class Standard_AGA7 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculatedSpeedOfSound

double calculatedSpeedOfSound

Calculated speed of sound in m/s (from EOS).

flowingDensity

double flowingDensity

Gas density at flowing conditions in kg/m3.

flowingPressure

double flowingPressure

Flowing pressure in bara.

flowingTemperature

double flowingTemperature

Flowing temperature in K.

lineVolumeFlowRate

double lineVolumeFlowRate

Volume flow rate at line conditions in m3/h.

massFlowRate

double massFlowRate

Mass flow rate in kg/h.

measuredSpeedOfSound

double measuredSpeedOfSound

Measured speed of sound in m/s (from USM).

measuredVelocity

double measuredVelocity

Measured average velocity in m/s.

pipeDiameter

double pipeDiameter

Pipe internal diameter in meters.

reynoldsNumber

double reynoldsNumber

Reynolds number based on pipe diameter.

sosDeviation

double sosDeviation

Speed of sound deviation between measured and calculated in %.

sosDeviationLimit

double sosDeviationLimit

Maximum allowable SOS deviation for diagnostics in %.

standardDensity

double standardDensity

Gas density at standard conditions in kg/m3.

standardVolumeFlowRate

double standardVolumeFlowRate

Volume flow rate at standard conditions in Sm3/h.

viscosity

double viscosity

Dynamic viscosity at flowing conditions in Pa*s.

Class neqsim.standards.gasquality.Standard_EN16723

class Standard_EN16723 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

amineLimit

double amineLimit

Maximum amine content in mg/m3.

ammoniaLimit

double ammoniaLimit

Maximum ammonia content in mg/m3.

chlorineLimit

double chlorineLimit

Maximum chlorinated compounds in mg/m3 as HCl.

co2Content

double co2Content

CO2 content in mol%.

co2MaxPart1

double co2MaxPart1

Specification limits for Part 1 (grid injection).

co2MaxPart2

double co2MaxPart2

Specification limits for Part 2 (automotive).

en16726

Standard_EN16726 en16726

Internal EN 16726 check for base gas quality.

fluorineLimit

double fluorineLimit

Maximum fluorinated compounds in mg/m3 as HF.

h2Content

double h2Content

H2 content in mol%.

h2MaxPart1

double h2MaxPart1

methaneContent

double methaneContent

Methane content in mol%.

methaneMinPart2

double methaneMinPart2

o2Content

double o2Content

O2 content in mol%.

o2MaxPart1

double o2MaxPart1

o2MaxPart2

double o2MaxPart2

part

int part

Standard part: 1 = grid injection, 2 = automotive.

siloxaneLimit

double siloxaneLimit

Maximum siloxane content in mg/m3 as Si.

totalInerts

double totalInerts

Total inert gas content (N2 + CO2) in mol%.

totalInertsMaxPart1

double totalInertsMaxPart1

wobbeIndex

double wobbeIndex

Wobbe index in MJ/m3 (from EN 16726).

Class neqsim.standards.gasquality.Standard_EN16726

class Standard_EN16726 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

co2Content

double co2Content

CO2 content in mol%.

co2Max

double co2Max

Specification limits - max CO2 in mol%.

grossCalorificValue

double grossCalorificValue

Calculated GCV in MJ/m3.

h2Content

double h2Content

H2 content in mol%.

h2Max

double h2Max

Specification limits - max H2 in mol%.

h2sContent

double h2sContent

H2S content in mg/m3.

h2sMax

double h2sMax

Specification limits - max H2S + COS in mg/m3.

iso6976

Standard_ISO6976 iso6976

ISO 6976 calculator for Wobbe index.

networkType

String networkType

Network type: "transmission" or "distribution".

o2Content

double o2Content

O2 content in mol%.

o2MaxDistribution

double o2MaxDistribution

Specification limits - max O2 in mol% (distribution).

o2MaxTransmission

double o2MaxTransmission

Specification limits - max O2 in mol% (transmission).

relativeDensity

double relativeDensity

Calculated relative density.

relativeDensityMax

double relativeDensityMax

Specification limits - relative density max.

relativeDensityMin

double relativeDensityMin

Specification limits - relative density min.

totalSulfur

double totalSulfur

Total sulfur content in mg/m3.

totalSulfurMax

double totalSulfurMax

Specification limits - max total sulfur in mg/m3.

waterContent

double waterContent

Water content in mg/m3.

wobbeIndex

double wobbeIndex

Calculated Wobbe index in MJ/m3.

wobbeIndexMax

double wobbeIndexMax

Specification limits - Wobbe index max in MJ/m3.

wobbeIndexMin

double wobbeIndexMin

Specification limits - Wobbe index min in MJ/m3.

Class neqsim.standards.gasquality.Standard_GPA2145

class Standard_GPA2145 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

idealGrossHV

double idealGrossHV

Calculated ideal gas gross heating value in BTU/ft3.

idealNetHV

double idealNetHV

Calculated ideal gas net heating value in BTU/ft3.

matchedComponents

int matchedComponents

Number of components matched to GPA 2145 data.

mixtureMolarMass

double mixtureMolarMass

Calculated mixture molar mass in g/mol.

mixtureRelativeDensity

double mixtureRelativeDensity

Calculated mixture relative density.

totalComponents

int totalComponents

Total number of components in the system.

Class neqsim.standards.gasquality.Standard_GPA2172

class Standard_GPA2172 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

compressionFactor

double compressionFactor

Compression factor at 60F, 14.696 psia.

gpa2145

Standard_GPA2145 gpa2145

Internal GPA 2145 constants provider.

gpmC2Plus

double gpmC2Plus

Theoretical C2+ liquid content in gallons per Mcf.

gpmC3Plus

double gpmC3Plus

Theoretical C3+ liquid content in gallons per Mcf.

idealGrossHV

double idealGrossHV

Ideal gas gross heating value in BTU/ft3 at 60F.

iso6976

Standard_ISO6976 iso6976

Internal ISO 6976 calculator for Z-factor.

molarMass

double molarMass

Mixture molar mass in g/mol.

realGrossHV

double realGrossHV

Real gas gross heating value in BTU/ft3 at 60F.

relativeDensity

double relativeDensity

Relative density (specific gravity) to air.

Class neqsim.standards.gasquality.Standard_ISO12213

class Standard_ISO12213 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

calculationMethod

String calculationMethod

Calculation method: "AGA8" (Part 3) or "SGERG" (Part 2).

calculationPressure

double calculationPressure

Calculation pressure in MPa.

calculationTemperature

double calculationTemperature

Calculation temperature in K.

compressionFactor

double compressionFactor

Calculated compression factor (Z).

massDensity

double massDensity

Calculated mass density in kg/m3.

molarDensity

double molarDensity

Calculated molar density in mol/dm3.

molarMass

double molarMass

Calculated molar mass of the mixture in g/mol.

Class neqsim.standards.gasquality.Standard_ISO13443

class Standard_ISO13443 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

molarVolume1

double molarVolume1

Ideal gas molar volume at condition 1 in m3/mol.

molarVolume2

double molarVolume2

Ideal gas molar volume at condition 2 in m3/mol.

refPressure1

double refPressure1

Reference pressure 1 in kPa.

refPressure2

double refPressure2

Reference pressure 2 in kPa.

refTemp1

double refTemp1

Reference temperature 1 in K (from condition).

refTemp2

double refTemp2

Reference temperature 2 in K (to condition).

volumeConversionFactor

double volumeConversionFactor

Volume conversion factor from condition 1 to 2.

z1

double z1

Compression factor at condition 1.

z2

double z2

Compression factor at condition 2.

Class neqsim.standards.gasquality.Standard_ISO14687

class Standard_ISO14687 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

arContent

double arContent

Argon content in umol/mol.

co2Content

double co2Content

CO2 content in umol/mol.

coContent

double coContent

CO content in umol/mol.

grade

String grade

Hydrogen grade: "A", "B", "C", "D", "E".

h2Purity

double h2Purity

Hydrogen purity in mol%.

heContent

double heContent

Helium content in umol/mol.

n2Content

double n2Content

Nitrogen content in umol/mol.

o2Content

double o2Content

Oxygen content in umol/mol.

totalHC

double totalHC

Total hydrocarbons in umol/mol.

totalNonH2

double totalNonH2

Total non-hydrogen content in umol/mol (ppmv).

totalSulfur

double totalSulfur

Total sulfur in umol/mol.

waterContent

double waterContent

Water content in umol/mol.

Class neqsim.standards.gasquality.Standard_ISO15112

class Standard_ISO15112 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

accumulatedEnergy

double accumulatedEnergy

Total accumulated energy in GJ.

accumulationPeriod

double accumulationPeriod

Accumulation period in hours.

energyFlowRate

double energyFlowRate

Calculated energy flow rate in MJ/h.

energyRefTempC

double energyRefTempC

Energy reference temperature in degrees C.

grossCalorificValue

double grossCalorificValue

Calculated gross calorific value in MJ/m3.

iso6976

Standard_ISO6976 iso6976

Internal ISO 6976 calculator for calorific value.

meteringPressure

double meteringPressure

Metering pressure in bara.

meteringTemperature

double meteringTemperature

Metering temperature in degrees C.

netCalorificValue

double netCalorificValue

Calculated net calorific value in MJ/m3.

standardVolumeFlowRate

double standardVolumeFlowRate

Calculated standard volume flow rate in Sm3/h.

volumeFlowRate

double volumeFlowRate

Volume flow rate at metering conditions in m3/h.

volumeRefTempC

double volumeRefTempC

Volume reference temperature in degrees C.

Class neqsim.standards.gasquality.Standard_ISO15403

class Standard_ISO15403 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

MON

double MON

NM

double NM

Class neqsim.standards.gasquality.Standard_ISO18453

class Standard_ISO18453 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

dewPointTemperature

double dewPointTemperature

Calculated water dew point temperature in Celsius.

dewPointTemperatureSpec

double dewPointTemperatureSpec

Water dew point specification limit from sales contract in Celsius.

dewPointTemperatureUnit

String dewPointTemperatureUnit

Unit for dew point temperature output.

initTemperature

double initTemperature

Initial temperature for flash calculation in Kelvin.

internalThermoOps

ThermodynamicOperations internalThermoOps

Thermodynamic operations for the internal system.

internalThermoSystem

SystemInterface internalThermoSystem

Internal thermo system using GERG-water model.

pressureUnit

String pressureUnit

Unit for pressure.

Class neqsim.standards.gasquality.Standard_ISO23874

class Standard_ISO23874 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

compositionQualityOk

boolean compositionQualityOk

Whether composition meets ISO 23874 extended analysis requirements.

cricondenbarPressure

double cricondenbarPressure

Cricondenbar pressure in bara.

cricondenbarTemperature

double cricondenbarTemperature

Cricondenbar temperature in degrees C.

dewPointTemperature

double dewPointTemperature

HC dew point temperature in degrees C at specified pressure.

evaluationPressure

double evaluationPressure

Pressure at which to calculate HC dew point in bara.

hcSystem

SystemInterface hcSystem

Internal thermo system for HC-only dew point.

maxCarbonNumber

int maxCarbonNumber

Maximum carbon number found in composition.

minimumCarbonNumber

int minimumCarbonNumber

Minimum required carbon number for extended analysis.

thermoOps

ThermodynamicOperations thermoOps

ThermodynamicOperations for calculations.

Class neqsim.standards.gasquality.Standard_ISO6578

class Standard_ISO6578 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

densityUnit

String densityUnit

ISO6578KMKMcorrectionFactor1Matrix

double[][] ISO6578KMKMcorrectionFactor1Matrix

ISO6578KMKMcorrectionFactor2Matrix

double[][] ISO6578KMKMcorrectionFactor2Matrix

ISO6578molarMasses

double[] ISO6578molarMasses

ISO6578temperatures

double[] ISO6578temperatures

KMcorrectionFactor1

double KMcorrectionFactor1

KMcorrectionFactor2

double KMcorrectionFactor2

KMKMcorrectionFactor1Matrix

double[][] KMKMcorrectionFactor1Matrix

KMKMcorrectionFactor2Matrix

double[][] KMKMcorrectionFactor2Matrix

LNGdensity

double LNGdensity

molarMasses

double[] molarMasses

temperatures

double[] temperatures

use6578volumeCorrectionFactors

boolean use6578volumeCorrectionFactors

Vi

double[] Vi

Viethane

double[] Viethane

ViiC4

double[] ViiC4

ViiC5

double[] ViiC5

Vimethane

double[] Vimethane

VinC4

double[] VinC4

VinC5

double[] VinC5

VinC6

double[] VinC6

Vinitrogen

double[] Vinitrogen

Vipropane

double[] Vipropane

Vitemperatures

double[] Vitemperatures

Class neqsim.standards.gasquality.Standard_ISO6974

class Standard_ISO6974 extends GasChromotograpyhBase implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentStdUncertainty

Map<String,Double> componentStdUncertainty

Standard uncertainties (1 sigma) for each component in mol fraction. These are typical values for a well-maintained GC; users should override with their own calibration data.

coverageFactor

double coverageFactor

Default coverage factor for expanded uncertainty (k=2 gives ~95% confidence).

expandedUncertainties

Map<String,Double> expandedUncertainties

Expanded uncertainties of the normalised composition in mol%.

iso6976

Standard_ISO6976 iso6976

ISO 6976 instance for property calculations.

normalisationApplied

boolean normalisationApplied

Whether normalisation was required (raw sum differs from 1 by more than tolerance).

normalisationFactor

double normalisationFactor

Normalisation factor applied (sum of raw mol fractions before normalisation).

normalisationTolerance

double normalisationTolerance

Tolerance for raw composition sum deviating from 1.0.

normalisedComposition

Map<String,Double> normalisedComposition

Normalised composition in mol fraction. After normalisation the sum is exactly 1.0.

uncertaintyGCV

double uncertaintyGCV

Calculated expanded uncertainty of superior calorific value in MJ/m3.

uncertaintyRelativeDensity

double uncertaintyRelativeDensity

Calculated expanded uncertainty of relative density (dimensionless).

uncertaintyWobbe

double uncertaintyWobbe

Calculated expanded uncertainty of Wobbe index in MJ/m3.

Class neqsim.standards.gasquality.Standard_ISO6976

class Standard_ISO6976 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

averageCarbonNumber

double averageCarbonNumber

bsqrt0

double[] bsqrt0

bsqrt15

double[] bsqrt15

bsqrt20

double[] bsqrt20

carbonNumber

int[] carbonNumber

componentsNotDefinedByStandard

ArrayList<String> componentsNotDefinedByStandard

densIdeal

double densIdeal

densReal

double densReal

energy

double energy

energyRefP

double energyRefP

energyRefT

double energyRefT

energyUnit

String energyUnit

Hinf0

double[] Hinf0

Hinf15

double[] Hinf15

Hinf20

double[] Hinf20

Hinf25

double[] Hinf25

Hinf60F

double[] Hinf60F

HinfIdeal0

double HinfIdeal0

HinfIdeal15

double HinfIdeal15

HinfIdeal20

double HinfIdeal20

HinfIdeal25

double HinfIdeal25

HinfIdeal60F

double HinfIdeal60F

Hsup0

double[] Hsup0

Hsup15

double[] Hsup15

Hsup20

double[] Hsup20

Hsup25

double[] Hsup25

Hsup60F

double[] Hsup60F

HsupIdeal0

double HsupIdeal0

HsupIdeal15

double HsupIdeal15

HsupIdeal20

double HsupIdeal20

HsupIdeal25

double HsupIdeal25

HsupIdeal60F

double HsupIdeal60F

M

double[] M

Mmix

double Mmix

molRefm3

double molRefm3

R

double R

referenceType

String referenceType

relDensIdeal

double relDensIdeal

relDensReal

double relDensReal

volRefP

double volRefP

volRefT

double volRefT

wobbeIdeal

double wobbeIdeal

wobbeReal

double wobbeReal

Z0

double[] Z0

Z15

double[] Z15

Z20

double[] Z20

Zair0

double Zair0

Zair15

double Zair15

Zair20

double Zair20

Zmix0

double Zmix0

Zmix15

double Zmix15

Zmix20

double Zmix20

Class neqsim.standards.gasquality.Standard_ISO6976_2016

class Standard_ISO6976_2016 extends Standard_ISO6976 implements Serializable

serialVersionUID:

1000L

Serialized Fields

bsqrt0

double[] bsqrt0

bsqrt15

double[] bsqrt15

bsqrt20

double[] bsqrt20

bsqrt60F

double[] bsqrt60F

Hinf0

double[] Hinf0

Hinf15

double[] Hinf15

Hinf20

double[] Hinf20

Hinf25

double[] Hinf25

Hinf60F

double[] Hinf60F

HinfIdeal0

double HinfIdeal0

HinfIdeal15

double HinfIdeal15

HinfIdeal20

double HinfIdeal20

HinfIdeal25

double HinfIdeal25

HinfIdeal60F

double HinfIdeal60F

Hsup0

double[] Hsup0

Hsup15

double[] Hsup15

Hsup20

double[] Hsup20

Hsup25

double[] Hsup25

Hsup60F

double[] Hsup60F

HsupIdeal0

double HsupIdeal0

HsupIdeal15

double HsupIdeal15

HsupIdeal20

double HsupIdeal20

HsupIdeal25

double HsupIdeal25

HsupIdeal60F

double HsupIdeal60F

R

double R

Z0

double[] Z0

Z15

double[] Z15

Z20

double[] Z20

Z60F

double[] Z60F

Zair0

double Zair0

Zair15

double Zair15

Zair20

double Zair20

Zair60F

double Zair60F

Zmix0

double Zmix0

Zmix15

double Zmix15

Zmix20

double Zmix20

Zmix60F

double Zmix60F

Class neqsim.standards.gasquality.SulfurSpecificationMethod

class SulfurSpecificationMethod extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

H2Scontent

double H2Scontent

unit

String unit

Class neqsim.standards.gasquality.UKspecifications_ICF_SI

class UKspecifications_ICF_SI extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentName

String componentName

iso6976

Standard_ISO6976 iso6976

propaneNumber

double propaneNumber

unit

String unit

Package neqsim.standards.oilquality

Class neqsim.standards.oilquality.Standard_ASTM_D2500

class Standard_ASTM_D2500 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

cloudPointK

double cloudPointK

Cloud point temperature in Kelvin.

measurementPressure

double measurementPressure

Measurement pressure in bara (standard atmospheric).

Class neqsim.standards.oilquality.Standard_ASTM_D4052

class Standard_ASTM_D4052 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

apiGravity

double apiGravity

API gravity in degrees API.

density15C

double density15C

Density of oil at 15 C in kg/m3.

measurementPressure

double measurementPressure

Measurement pressure in bara (standard atmospheric).

referenceTemperatureC

double referenceTemperatureC

Reference temperature for API gravity in Celsius (60 F).

specificGravity60F

double specificGravity60F

Specific gravity at 60 F (15.56 C) relative to water at 60 F.

Class neqsim.standards.oilquality.Standard_ASTM_D4294

class Standard_ASTM_D4294 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

h2sSulfurWtPct

double h2sSulfurWtPct

H2S contribution to sulfur in weight percent.

measurementPressure

double measurementPressure

Measurement pressure in bara.

measurementTemperatureC

double measurementTemperatureC

Measurement temperature in Celsius.

mercaptanSulfurWtPct

double mercaptanSulfurWtPct

Mercaptan sulfur contribution in weight percent.

totalSulfurWtPct

double totalSulfurWtPct

Total sulfur content in weight percent.

Class neqsim.standards.oilquality.Standard_ASTM_D445

class Standard_ASTM_D445 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

density100C

double density100C

Liquid density at 100 C in kg/m3.

density40C

double density40C

Liquid density at 40 C in kg/m3.

dynamicViscosity100C

double dynamicViscosity100C

Dynamic viscosity at 100 C in mPa.s (cP).

dynamicViscosity40C

double dynamicViscosity40C

Dynamic viscosity at 40 C in mPa.s (cP).

kinematicViscosity100C

double kinematicViscosity100C

Kinematic viscosity at 100 C in mm2/s (cSt).

kinematicViscosity40C

double kinematicViscosity40C

Kinematic viscosity at 40 C in mm2/s (cSt).

measurementPressure

double measurementPressure

Measurement pressure in bara (standard atmospheric).

viscosityIndex

double viscosityIndex

Viscosity Index per ASTM D2270.

Class neqsim.standards.oilquality.Standard_ASTM_D6377

class Standard_ASTM_D6377 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

methodRVP

String methodRVP

referenceTemperature

double referenceTemperature

referenceTemperatureUnit

String referenceTemperatureUnit

RVP

double RVP

RVP_ASTM_D323_73_79

double RVP_ASTM_D323_73_79

RVP_ASTM_D323_82

double RVP_ASTM_D323_82

RVP_ASTM_D6377

double RVP_ASTM_D6377

TVP

double TVP

unit

String unit

VPCR4

double VPCR4

VPCR4_no_water

double VPCR4_no_water

Class neqsim.standards.oilquality.Standard_ASTM_D86

class Standard_ASTM_D86 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

distillationPressure

double distillationPressure

Distillation pressure in bara (standard atmospheric).

FBP

double FBP

Final Boiling Point in Kelvin.

IBP

double IBP

Initial Boiling Point in Kelvin.

numberOfPoints

int numberOfPoints

Number of distillation points to calculate.

residueFraction

double residueFraction

Residue volume fraction (undistilled).

temperatures

double[] temperatures

Temperatures at each volume fraction in Kelvin.

volumeFractions

double[] volumeFractions

Volume fractions to evaluate (0 to 1).

Class neqsim.standards.oilquality.Standard_ASTM_D97

class Standard_ASTM_D97 extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

measurementPressure

double measurementPressure

Measurement pressure in bara.

nonFlowViscosityThreshold

double nonFlowViscosityThreshold

Maximum viscosity threshold in mPa.s (cP) for considering oil as non-flowing. Typical practical limit is around 10000-50000 cP.

pourPointK

double pourPointK

Pour point temperature in Kelvin.

pourPointOffset

double pourPointOffset

Pour point offset above gel point in degrees (standard is +3 C above the point where oil ceases to flow).

Class neqsim.standards.oilquality.Standard_BSW

class Standard_BSW extends Standard implements Serializable

serialVersionUID:

1000L

Serialized Fields

bswVolPct

double bswVolPct

BS&W in volume percent.

maxBSW

double maxBSW

Maximum allowed BS&W in volume percent (for specification check).

measurementPressure

double measurementPressure

Measurement pressure in bara.

measurementTemperatureC

double measurementTemperatureC

Measurement temperature in Celsius.

waterCutVolPct

double waterCutVolPct

Water cut in volume percent.

Package neqsim.standards.salescontract

Class neqsim.standards.salescontract.ContractSpecification

class ContractSpecification extends NamedBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

comments

String comments

country

String country

maxValue

double maxValue

minValue

double minValue

referencePressure

double referencePressure

referenceTemperatureCombustion

double referenceTemperatureCombustion

referenceTemperatureMeasurement

double referenceTemperatureMeasurement

specification

String specification

standard

StandardInterface standard

terminal

String terminal

unit

String unit

Package neqsim.statistics.parameterfitting

Class neqsim.statistics.parameterfitting.BinaryInteractionParameterAdapter

class BinaryInteractionParameterAdapter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

component1

String component1

component2

String component2

parameter

FittingParameter parameter

Class neqsim.statistics.parameterfitting.ExperimentalDataPoint

class ExperimentalDataPoint extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dependentValues

double[] dependentValues

description

String description

measuredValue

double measuredValue

reference

String reference

standardDeviation

double standardDeviation

Class neqsim.statistics.parameterfitting.ExperimentalDataReader.CsvOptions

class CsvOptions extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dependentVariableColumns

String[] dependentVariableColumns

dependentVariableNames

String[] dependentVariableNames

dependentVariableUnits

String[] dependentVariableUnits

descriptionColumn

String descriptionColumn

measuredValueColumn

String measuredValueColumn

name

String name

referenceColumn

String referenceColumn

responseName

String responseName

responseUnit

String responseUnit

sourceDependentVariableUnits

String[] sourceDependentVariableUnits

sourceResponseUnit

String sourceResponseUnit

standardDeviationColumn

String standardDeviationColumn

Class neqsim.statistics.parameterfitting.ExperimentalDataSet

class ExperimentalDataSet extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dependentVariableNames

String[] dependentVariableNames

dependentVariableUnits

String[] dependentVariableUnits

name

String name

points

ArrayList<ExperimentalDataPoint> points

responseName

String responseName

responseUnit

String responseUnit

Class neqsim.statistics.parameterfitting.FittingParameter

class FittingParameter extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

String category

initialValue

double initialValue

lowerBound

double lowerBound

name

String name

priorStandardDeviation

double priorStandardDeviation

priorValue

double priorValue

transform

ParameterTransform transform

unit

String unit

upperBound

double upperBound

Class neqsim.statistics.parameterfitting.NumericalDerivative

class NumericalDerivative extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.statistics.parameterfitting.ParameterFittingReport

class ParameterFittingReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

convergenceReason

String convergenceReason

dataSetName

String dataSetName

experimentType

ExperimentType experimentType

fittedParameters

double[] fittedParameters

meanAbsoluteError

double meanAbsoluteError

objectiveFunctionType

ObjectiveFunctionType objectiveFunctionType

parameterNames

String[] parameterNames

reducedChiSquare

double reducedChiSquare

rootMeanSquareError

double rootMeanSquareError

studyName

String studyName

validationRootMeanSquareError

double validationRootMeanSquareError

weightedRootMeanSquareError

double weightedRootMeanSquareError

Class neqsim.statistics.parameterfitting.ParameterFittingSpec

class ParameterFittingSpec extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

experimentType

ExperimentType experimentType

maxNumberOfIterations

int maxNumberOfIterations

maxRobustIterations

int maxRobustIterations

multiStartCount

int multiStartCount

name

String name

objectiveFunctionType

ObjectiveFunctionType objectiveFunctionType

parameters

ArrayList<FittingParameter> parameters

randomSeed

long randomSeed

robustTuningConstant

double robustTuningConstant

trainingFraction

double trainingFraction

Package neqsim.statistics.parameterfitting.nonlinearparameterfitting

Class neqsim.statistics.parameterfitting.nonlinearparameterfitting.LevenbergMarquardtResult

class LevenbergMarquardtResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

convergenceReason

LevenbergMarquardtResult.ConvergenceReason convergenceReason

correlationMatrix

double[][] correlationMatrix

covarianceMatrix

double[][] covarianceMatrix

finalChiSquare

double finalChiSquare

gradientNorm

double gradientNorm

iterations

int iterations

parameterStandardErrors

double[] parameterStandardErrors

Package neqsim.thermo

Class neqsim.thermo.ThermodynamicModelTest

class ThermodynamicModelTest extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxError

double maxError

system

SystemInterface system

Package neqsim.thermo.atomelement

Class neqsim.thermo.atomelement.Element

class Element extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

coefArray

double[] coefArray

name

String name

nameArray

String[] nameArray

Class neqsim.thermo.atomelement.UNIFACgroup

class UNIFACgroup extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

groupIndex

int groupIndex

groupName

String groupName

lnGammaComp

double lnGammaComp

lnGammaCompdT

double lnGammaCompdT

lnGammaCompdTdT

double lnGammaCompdTdT

lnGammaMix

double lnGammaMix

lnGammaMixdn

double[] lnGammaMixdn

lnGammaMixdT

double lnGammaMixdT

lnGammaMixdTdT

double lnGammaMixdTdT

mainGroup

int mainGroup

n

int n

Q

double Q

QComp

double QComp

QMix

double QMix

QMixdN

double[] QMixdN

R

double R

subGroup

int subGroup

xComp

double xComp

Package neqsim.thermo.characterization

Class neqsim.thermo.characterization.BiomassCharacterization

class BiomassCharacterization extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

ash

double ash

Ash content in weight percent (dry basis).

calculated

boolean calculated

Whether calculate() has been called.

carbonWt

double carbonWt

Carbon content in weight percent (daf).

chemicalFormula

String chemicalFormula

Empirical chemical formula string, e.g. "CH1.46O0.64N0.005S0.001".

chlorineWt

double chlorineWt

Chlorine content in weight percent (daf).

fixedCarbon

double fixedCarbon

Fixed carbon in weight percent (dry basis).

hcRatio

double hcRatio

Molar H/C ratio.

hhv

double hhv

Higher heating value in MJ/kg (dry-ash-free).

hhvUserOverride

boolean hhvUserOverride

Whether HHV has been explicitly set by the user.

hydrogenWt

double hydrogenWt

Hydrogen content in weight percent (daf).

lhv

double lhv

Lower heating value in MJ/kg (dry-ash-free).

moisture

double moisture

Moisture content in weight percent (as-received basis).

name

String name

Name or label for this biomass feedstock.

nitrogenWt

double nitrogenWt

Nitrogen content in weight percent (daf).

ocRatio

double ocRatio

Molar O/C ratio.

oxygenWt

double oxygenWt

Oxygen content in weight percent (daf).

stoichiometricAir

double stoichiometricAir

Stoichiometric air requirement in kg-air / kg-fuel (dry basis).

sulfurWt

double sulfurWt

Sulfur content in weight percent (daf).

volatileMatter

double volatileMatter

Volatile matter in weight percent (dry basis).

Class neqsim.thermo.characterization.Characterise

class Characterise extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

lumpingModel

LumpingModelInterface lumpingModel

lumpingModelSelector

LumpingModel lumpingModelSelector

plusFractionModel

PlusFractionModelInterface plusFractionModel

plusFractionModelSelector

PlusFractionModel plusFractionModelSelector

system

SystemInterface system

TBPCharacterise

TBPCharacterize TBPCharacterise

TBPfractionModel

TBPModelInterface TBPfractionModel

TBPFractionModelName

String TBPFractionModelName

TBPfractionModelSelector

TBPfractionModel TBPfractionModelSelector

Class neqsim.thermo.characterization.LumpingModel

class LumpingModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

customBoundaries

int[] customBoundaries

Custom carbon number boundaries for lumping.

fractionOfHeavyEnd

double[] fractionOfHeavyEnd

lumpedComponentNames

String[] lumpedComponentNames

name

String name

numberOfLumpedComponents

int numberOfLumpedComponents

numberOfPseudocomponents

int numberOfPseudocomponents

system

SystemInterface system

Class neqsim.thermo.characterization.LumpingModel.NoLumpingModel

class NoLumpingModel extends LumpingModel.StandardLumpingModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.LumpingModel.PVTLumpingModel

class PVTLumpingModel extends LumpingModel.StandardLumpingModel implements Serializable

serialVersionUID:

1000L

Serialized Fields

requestedPseudoComponents

int requestedPseudoComponents

Original requested numberOfPseudoComponents for warning purposes.

Class neqsim.thermo.characterization.LumpingModel.StandardLumpingModel

class StandardLumpingModel extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.LumpingResult

class LumpingResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

carbonNumberBoundaries

int[] carbonNumberBoundaries

lumpedAverageDensity

double lumpedAverageDensity

lumpedAverageMW

double lumpedAverageMW

lumpedComponentCount

int lumpedComponentCount

lumpedComponentNames

List<String> lumpedComponentNames

modelName

String modelName

originalAverageDensity

double originalAverageDensity

originalAverageMW

double originalAverageMW

originalComponentCount

int originalComponentCount

warnings

List<String> warnings

Class neqsim.thermo.characterization.NewtonSolveAB

class NewtonSolveAB extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

characterizeClass

TBPCharacterize characterizeClass

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

iter

int iter

Jac

Jama.Matrix Jac

numberOfComponents

int numberOfComponents

sol

Jama.Matrix sol

system

SystemInterface system

Class neqsim.thermo.characterization.NewtonSolveABCD

class NewtonSolveABCD extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcTPBfraction

double[] calcTPBfraction

characterizeClass

TBPCharacterize characterizeClass

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

iter

int iter

Jac

Jama.Matrix Jac

numberOfComponents

int numberOfComponents

sol

Jama.Matrix sol

Class neqsim.thermo.characterization.NewtonSolveCDplus

class NewtonSolveCDplus extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

characterizeClass

PlusCharacterize characterizeClass

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

iter

int iter

Jac

Jama.Matrix Jac

numberOfComponents

int numberOfComponents

sol

Jama.Matrix sol

Class neqsim.thermo.characterization.OilAssayCharacterisation

class OilAssayCharacterisation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cuts

List<OilAssayCharacterisation.AssayCut> cuts

totalAssayMass

double totalAssayMass

Class neqsim.thermo.characterization.OilAssayCharacterisation.AssayCut

class AssayCut extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

apiGravity

Double apiGravity

averageBoilingPointKelvin

Double averageBoilingPointKelvin

density

Double density

massFraction

Double massFraction

molarMass

Double molarMass

name

String name

volumeFraction

Double volumeFraction

Class neqsim.thermo.characterization.PedersenPlusModelSolver

class PedersenPlusModelSolver extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

characterizeClass

PlusFractionModel.PedersenPlusModel characterizeClass

dx

Jama.Matrix dx

fvecAB

Jama.Matrix fvecAB

fvecCD

Jama.Matrix fvecCD

iter

int iter

JacAB

Jama.Matrix JacAB

JacCD

Jama.Matrix JacCD

numberOfComponents

int numberOfComponents

solAB

Jama.Matrix solAB

solCD

Jama.Matrix solCD

system

SystemInterface system

Class neqsim.thermo.characterization.PlusCharacterize

class PlusCharacterize extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

carbonNumberVector

int[] carbonNumberVector

coefs

double[] coefs

densLastTBP

double densLastTBP

densPlus

double densPlus

firstPlusFractionNumber

int firstPlusFractionNumber

firsttime

boolean firsttime

lastPlusFractionNumber

int lastPlusFractionNumber

length

int length

MPlus

double MPlus

numberOfPseudocomponents

int numberOfPseudocomponents

plusCoefs

double[] plusCoefs

PRcoefs

double[] PRcoefs

pseudocomponents

boolean pseudocomponents

SRKcoefs

double[] SRKcoefs

system

SystemInterface system

TBPfractions

double[] TBPfractions

zPlus

double zPlus

Class neqsim.thermo.characterization.PlusFractionModel

class PlusFractionModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acs

double[] acs

dens

double[] dens

densPlus

double densPlus

firstPlusFractionNumber

int firstPlusFractionNumber

lastPlusFractionNumber

int lastPlusFractionNumber

M

double[] M

maxPlusMolarMass

double maxPlusMolarMass

MPlus

double MPlus

name

String name

PC

double[] PC

plusComponentNumber

int plusComponentNumber

system

SystemInterface system

TC

double[] TC

z

double[] z

zPlus

double zPlus

Class neqsim.thermo.characterization.TBPCharacterize

class TBPCharacterize extends PlusCharacterize implements Serializable

serialVersionUID:

1000L

Serialized Fields

calcTBPfractions

double[] calcTBPfractions

endPlus

int endPlus

startPlus

int startPlus

TBP_M

double[] TBP_M

TBP_Mnom

double[] TBP_Mnom

TBPdens

double[] TBPdens

TBPdensDenom

double[] TBPdensDenom

TBPmoles

double[] TBPmoles

Class neqsim.thermo.characterization.TBPfractionModel

class TBPfractionModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

Class neqsim.thermo.characterization.TBPfractionModel.CavettModel

class CavettModel extends TBPfractionModel.TBPBaseModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.LeeKesler

class LeeKesler extends TBPfractionModel.TBPBaseModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.PedersenTBPModelPR

class PedersenTBPModelPR extends TBPfractionModel.PedersenTBPModelSRK implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.PedersenTBPModelPR2

class PedersenTBPModelPR2 extends TBPfractionModel.PedersenTBPModelSRK implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.PedersenTBPModelPRHeavyOil

class PedersenTBPModelPRHeavyOil extends TBPfractionModel.PedersenTBPModelPR implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.PedersenTBPModelSRK

class PedersenTBPModelSRK extends TBPfractionModel.TBPBaseModel implements Serializable

serialVersionUID:

1000L

Serialized Fields

TBPfractionCoefOil

double[][] TBPfractionCoefOil

TBPfractionCoefs

double[][] TBPfractionCoefs

TBPfractionCoefsHeavyOil

double[][] TBPfractionCoefsHeavyOil

TPBracketcoefs

double[] TPBracketcoefs

Class neqsim.thermo.characterization.TBPfractionModel.PedersenTBPModelSRKHeavyOil

class PedersenTBPModelSRKHeavyOil extends TBPfractionModel.PedersenTBPModelSRK implements Serializable

serialVersionUID:

1000L

Serialized Fields

TBPfractionCoefOil

double[][] TBPfractionCoefOil

TBPfractionCoefsHeavyOil

double[][] TBPfractionCoefsHeavyOil

Class neqsim.thermo.characterization.TBPfractionModel.RiaziDaubert

class RiaziDaubert extends TBPfractionModel.PedersenTBPModelSRK implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.StandingModel

class StandingModel extends TBPfractionModel.TBPBaseModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.TBPfractionModel.TBPBaseModel

class TBPBaseModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

boilingPoint

double boilingPoint

calcm

boolean calcm

Class neqsim.thermo.characterization.TBPfractionModel.TwuModel

class TwuModel extends TBPfractionModel.TBPBaseModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.WaxCharacterise

class WaxCharacterise extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

model

WaxModelInterface model

name

String name

thermoSystem

SystemInterface thermoSystem

Class neqsim.thermo.characterization.WaxCharacterise.PedersenWaxModel

class PedersenWaxModel extends WaxCharacterise.WaxBaseModel implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.characterization.WaxCharacterise.WaxBaseModel

class WaxBaseModel extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

parameterWax

double[] parameterWax

parameterWaxHeatOfFusion

double[] parameterWaxHeatOfFusion

parameterWaxTriplePointTemperature

double[] parameterWaxTriplePointTemperature

Package neqsim.thermo.component

Class neqsim.thermo.component.Component

class Component extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

acentricFactor

double acentricFactor

aCPA

double aCPA

AntoineA

double AntoineA

AntoineASolid

double AntoineASolid

AntoineB

double AntoineB

AntoineBSolid

double AntoineBSolid

AntoineC

double AntoineC

AntoineCSolid

double AntoineCSolid

AntoineD

double AntoineD

AntoineE

double AntoineE

antoineLiqVapPresType

String antoineLiqVapPresType

associationEnergy

double associationEnergy

associationEnergySAFT

double associationEnergySAFT

associationEnergySAFTVRMie

double associationEnergySAFTVRMie

associationScheme

String associationScheme

associationVolume

double associationVolume

associationVolumeSAFT

double associationVolumeSAFT

associationVolumeSAFTVRMie

double associationVolumeSAFTVRMie

SAFT-VR Mie bond volume K_HB in m^3 (Lafitte 2013 Eq. 39). For water: 101.69 Angstrom^3 = 1.0169e-28 m^3. If zero, falls back to kappa * sigma^3 (PC-SAFT convention).

attractiveTermNumber

int attractiveTermNumber

bCPA

double bCPA

calcActivity

int calcActivity

CASnumber

String CASnumber

componentName

String componentName

Name of component.

componentNumber

int componentNumber

Index number of Component in Phase object component array.

componentType

String componentType

Type of component. Can be "normal", "TBP", "plus", "ion", but what does "HC", "inert" and "Component?" do?

costaldCharacteristicVolume

double costaldCharacteristicVolume

CpA

double CpA

CpB

double CpB

CpC

double CpC

CpD

double CpD

CpE

double CpE

CpLiquid

double[] CpLiquid

CpSolid

double[] CpSolid

criticalCompressibilityFactor

double criticalCompressibilityFactor

criticalPressure

double criticalPressure

criticalTemperature

double criticalTemperature

criticalViscosity

double criticalViscosity

criticalVolume

double criticalVolume

debyeDipoleMoment

double debyeDipoleMoment

dfugdn

double[] dfugdn

dfugdp

double dfugdp

dfugdt

double dfugdt

dfugdx

double[] dfugdx

dielectricParameter

double[] dielectricParameter

dqPuredT

double dqPuredT

dqPuredTdT

double dqPuredTdT

elements

Element elements

epsikSAFT

double epsikSAFT

epsikSAFTVRMie

double epsikSAFTVRMie

formulae

String formulae

fugacityCoefficient

double fugacityCoefficient

gibbsEnergyOfFormation

double gibbsEnergyOfFormation

heatOfFusion

double heatOfFusion

heatOfVaporizationCoefs

double[] heatOfVaporizationCoefs

henryCoefParameter

double[] henryCoefParameter

Hsub

double Hsub

idealGasAbsoluteEntropy

double idealGasAbsoluteEntropy

idealGasEnthalpyOfFormation

double idealGasEnthalpyOfFormation

idealGasGibbsEnergyOfFormation

double idealGasGibbsEnergyOfFormation

index

int index

Index number of Component in database.

ionicCharge

int ionicCharge

isHydrateFormer

boolean isHydrateFormer

isIon

boolean isIon

isNormalComponent

boolean isNormalComponent

isPlusFraction

boolean isPlusFraction

isTBPfraction

boolean isTBPfraction

K

double K

lambdaASAFTVRMie

double lambdaASAFTVRMie

lambdaRSAFTVRMie

double lambdaRSAFTVRMie

lennardJonesEnergyParameter

double lennardJonesEnergyParameter

lennardJonesMolecularDiameter

double lennardJonesMolecularDiameter

liquidConductivityParameter

double[] liquidConductivityParameter

liquidDensityCoefs

double[] liquidDensityCoefs

liquidViscosityModel

int liquidViscosityModel

liquidViscosityParameter

double[] liquidViscosityParameter

matiascopemanParams

double[] matiascopemanParams

matiascopemanParamsPR

double[] matiascopemanParamsPR

matiascopemanParamsUMRPRU

double[] matiascopemanParamsUMRPRU

matiascopemanSolidParams

double[] matiascopemanSolidParams

mCPA

double mCPA

meltingPointTemperature

double meltingPointTemperature

molarMass

double molarMass

mSAFTi

double mSAFTi

mSAFTVRMie

double mSAFTVRMie

normalBoilingPoint

double normalBoilingPoint

normalLiquidDensity

double normalLiquidDensity

numberOfAssociationSites

int numberOfAssociationSites

numberOfMoles

double numberOfMoles

Number of moles of Component in System. Ideally numberOfMoles = totalNumberOfMoles * z.

numberOfMolesInPhase

double numberOfMolesInPhase

Number of moles of Component in Phase. Ideally totalNumberOfMoles * x * beta.

orginalNumberOfAssociationSites

int orginalNumberOfAssociationSites

parachorParameter

double parachorParameter

paulingAnionicDiameter

double paulingAnionicDiameter

qPure

double qPure

racketZ

double racketZ

racketZCPA

double racketZCPA

referenceEnthalpy

double referenceEnthalpy

referencePotential

double referencePotential

referenceStateType

String referenceStateType

schwartzentruberParams

double[] schwartzentruberParams

sigmaSAFTi

double sigmaSAFTi

sigmaSAFTVRMie

double sigmaSAFTVRMie

solidCheck

boolean solidCheck

Check for solid phase and do solid phase calculations.

solidDensityCoefs

double[] solidDensityCoefs

sphericalCoreRadius

double sphericalCoreRadius

srkacentricFactor

double srkacentricFactor

standardDensity

double standardDensity

stokesCationicDiameter

double stokesCationicDiameter

surfTensInfluenceParam

double[] surfTensInfluenceParam

triplePointDensity

double triplePointDensity

triplePointPressure

double triplePointPressure

triplePointTemperature

double triplePointTemperature

TwuCoonParams

double[] TwuCoonParams

viscosityCorrectionFactor

double viscosityCorrectionFactor

viscosityFrictionK

double viscosityFrictionK

voli

double voli

volumeCorrection

Double volumeCorrection

volumeCorrectionConst

double volumeCorrectionConst

volumeCorrectionT

double volumeCorrectionT

volumeCorrectionT_CPA

double volumeCorrectionT_CPA

waxFormer

boolean waxFormer

x

double x

Mole fraction of Component in Phase.

z

double z

Mole fraction of Component in System.

Class neqsim.thermo.component.ComponentAmmoniaEos

class ComponentAmmoniaEos extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentBNS

class ComponentBNS extends ComponentPR implements Serializable

serialVersionUID:

1L

Serialized Fields

omegaA

double omegaA

omegaB

double omegaB

Class neqsim.thermo.component.ComponentBWRS

class ComponentBWRS extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

aBWRS

double[] aBWRS

BE

double[] BE

BEdT

double[] BEdT

BEdTdT

double[] BEdTdT

BP

double[] BP

BPdT

double[] BPdT

BPdTdT

double[] BPdTdT

gammaBWRS

double gammaBWRS

OE

int OE

OP

int OP

refPhaseBWRS

PhaseBWRSEos refPhaseBWRS

rhoc

double rhoc

Class neqsim.thermo.component.ComponentCoutinhoWax

class ComponentCoutinhoWax extends ComponentSolid implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentCSPsrk

class ComponentCSPsrk extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

f_scale_mix_i

double f_scale_mix_i

h_scale_mix_i

double h_scale_mix_i

refPhaseBWRS

PhaseCSPsrkEos refPhaseBWRS

Class neqsim.thermo.component.ComponentDesmukhMather

class ComponentDesmukhMather extends ComponentGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

deshMathIonicDiameter

double deshMathIonicDiameter

Class neqsim.thermo.component.ComponentElectrolyteCPA

class ComponentElectrolyteCPA extends ComponentModifiedFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

xsitedni

double[][] xsitedni

xsitedT

double[] xsitedT

xsitedTdT

double[] xsitedTdT

xsitedV

double[] xsitedV

xsiteOld

double[] xsiteOld

Class neqsim.thermo.component.ComponentElectrolyteCPAAdvanced

class ComponentElectrolyteCPAAdvanced extends ComponentElectrolyteCPAstatoil implements Serializable

serialVersionUID:

1000L

Serialized Fields

hasAdvancedParams

boolean hasAdvancedParams

Whether this ion has advanced Born parameters in IonParametersAdvanced.

Class neqsim.thermo.component.ComponentElectrolyteCPAOld

class ComponentElectrolyteCPAOld extends ComponentModifiedFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

xsitedni

double[][] xsitedni

xsitedT

double[] xsitedT

xsitedV

double[] xsitedV

xsiteOld

double[] xsiteOld

Class neqsim.thermo.component.ComponentElectrolyteCPAstatoil

class ComponentElectrolyteCPAstatoil extends ComponentElectrolyteCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentEos

class ComponentEos extends Component implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double a

aDern

double aDern

aDerT

double aDerT

aDerTn

double aDerTn

aDerTT

double aDerTT

aDiffDiffT

double aDiffDiffT

aDiffT

double aDiffT

Ai

double Ai

Aij

double[] Aij

AiT

double AiT

alpha

double alpha

aT

double aT

attractiveParameter

AttractiveTermInterface attractiveParameter

b

double b

bDern

double bDern

bDerTn

double bDerTn

Bi

double Bi

Bij

double[] Bij

dAdndn

double[] dAdndn

dBdndn

double[] dBdndn

delta1

double delta1

delta2

double delta2

m

double m

omegaAOverride

double omegaAOverride

Per-component OmegaA override. NaN means use the EOS default.

sqrtAT

double sqrtAT

Cached Math.sqrt(aT) for use by mixing-rule inner loops. Kept in sync with aT by init().

Class neqsim.thermo.component.ComponentEOSCGEos

class ComponentEOSCGEos extends ComponentGERG2008Eos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGE

class ComponentGE extends Component implements Serializable

serialVersionUID:

1000L

Serialized Fields

dlngammadn

double[] dlngammadn

dlngammadp

double dlngammadp

dlngammadt

double dlngammadt

dlngammadtdt

double dlngammadtdt

gamma

double gamma

gammaRefCor

double gammaRefCor

lngamma

double lngamma

Class neqsim.thermo.component.ComponentGeDuanSun

class ComponentGeDuanSun extends ComponentGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

q

double q

r

double r

Class neqsim.thermo.component.ComponentGeNRTL

class ComponentGeNRTL extends ComponentGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

q

double q

r

double r

Class neqsim.thermo.component.ComponentGENRTLmodifiedHV

class ComponentGENRTLmodifiedHV extends ComponentGeNRTL implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGENRTLmodifiedWS

class ComponentGENRTLmodifiedWS extends ComponentGeNRTL implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGePitzer

class ComponentGePitzer extends ComponentGE implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGERG2004

class ComponentGERG2004 extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGERG2008Eos

class ComponentGERG2008Eos extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGEUnifac

class ComponentGEUnifac extends ComponentGEUniquac implements Serializable

serialVersionUID:

1000L

Serialized Fields

lnGammakComp

double[] lnGammakComp

lnGammakMix

double[] lnGammakMix

numberOfUnifacSubGroups

int numberOfUnifacSubGroups

Q

double Q

R

double R

unifacGroups

ArrayList<UNIFACgroup> unifacGroups

unifacGroupsArray

UNIFACgroup[] unifacGroupsArray

Class neqsim.thermo.component.ComponentGEUnifacPSRK

class ComponentGEUnifacPSRK extends ComponentGEUnifac implements Serializable

serialVersionUID:

1000L

Serialized Fields

bij

double[][] bij

cij

double[][] cij

Class neqsim.thermo.component.ComponentGEUnifacUMRPRU

class ComponentGEUnifacUMRPRU extends ComponentGEUnifac implements Serializable

serialVersionUID:

1000L

Serialized Fields

aij

double[][] aij

aijdT

double[][] aijdT

aijdTdT

double[][] aijdTdT

numberOfUnifacSubGroups

int numberOfUnifacSubGroups

old2Temperature

double old2Temperature

oldTemperature

double oldTemperature

sum2Comp

double[] sum2Comp

sum2CompdT

double[] sum2CompdT

sum2CompdTdT

double[] sum2CompdTdT

sum2Mix

double[] sum2Mix

sum2MixdT

double[] sum2MixdT

sum2MixdTdT

double[] sum2MixdTdT

tempExpaij

double[][] tempExpaij

Class neqsim.thermo.component.ComponentGEUniquac

class ComponentGEUniquac extends ComponentGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

q

double q

r

double r

Class neqsim.thermo.component.ComponentGEUniquacmodifiedHV

class ComponentGEUniquacmodifiedHV extends ComponentGEUniquac implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentGEWilson

class ComponentGEWilson extends ComponentGE implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentHydrate

class ComponentHydrate extends Component implements Serializable

serialVersionUID:

1000L

Serialized Fields

cavNumb

double[][] cavNumb

cavprwat

double[][] cavprwat

cavRadius

double[][] cavRadius

coordNumb

double[][] coordNumb

dGfHydrate

double[] dGfHydrate

dHfHydrate

double[] dHfHydrate

emptyHydrateVapourPressureConstant

double[][] emptyHydrateVapourPressureConstant

hydrateStructure

int hydrateStructure

lennardJonesEnergyParameterHydrate

double lennardJonesEnergyParameterHydrate

lennardJonesMolecularDiameterHydrate

double lennardJonesMolecularDiameterHydrate

reffug

double[] reffug

refPhase

PhaseInterface refPhase

Reference phase containing only this single component, i.e., mixing rules are not relevant.

sphericalCoreRadiusHydrate

double sphericalCoreRadiusHydrate

Class neqsim.thermo.component.ComponentHydrateBallard

class ComponentHydrateBallard extends ComponentHydrate implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentHydrateGF

class ComponentHydrateGF extends ComponentHydrate implements Serializable

serialVersionUID:

1000L

Serialized Fields

Ak

double[][] Ak

Bk

double[][] Bk

Class neqsim.thermo.component.ComponentHydrateKluda

class ComponentHydrateKluda extends Component implements Serializable

serialVersionUID:

1000L

Serialized Fields

cavNumb

double[][] cavNumb

cavprwat

double[][] cavprwat

cavRadius

double[][][] cavRadius

coordNumb

double[][][] coordNumb

hydrateStructure

int hydrateStructure

par1_struc1

double par1_struc1

par1_struc2

double par1_struc2

par2_struc1

double par2_struc1

par2_struc2

double par2_struc2

reffug

double[] reffug

Class neqsim.thermo.component.ComponentHydratePVTsim

class ComponentHydratePVTsim extends ComponentHydrate implements Serializable

serialVersionUID:

1000L

Serialized Fields

Ak

double[][] Ak

Bk

double[][] Bk

Class neqsim.thermo.component.ComponentHydrateStatoil

class ComponentHydrateStatoil extends ComponentHydrate implements Serializable

serialVersionUID:

1000L

Serialized Fields

cavNumb

double[][] cavNumb

cavprwat

double[][] cavprwat

cavRadius

double[][] cavRadius

coordNumb

double[][] coordNumb

Class neqsim.thermo.component.ComponentIdealGas

class ComponentIdealGas extends Component implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentKentEisenberg

class ComponentKentEisenberg extends ComponentGeNRTL implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentLeachmanEos

class ComponentLeachmanEos extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentModifiedFurstElectrolyteEos

class ComponentModifiedFurstElectrolyteEos extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

alphai

double alphai

alphaiT

double alphaiT

alphaiV

double alphaiV

bornOn

double bornOn

bornterm

double bornterm

dEpsdNi

double dEpsdNi

diElectricdn

double diElectricdn

diElectricdndT

double diElectricdndT

diElectricdndV

double diElectricdndV

epsi

double epsi

epsIonici

double epsIonici

epsIoniciV

double epsIoniciV

epsiV

double epsiV

ionicCoVolume

double ionicCoVolume

lrOn

double lrOn

solventdiElectricdn

double solventdiElectricdn

solventdiElectricdndT

double solventdiElectricdndT

sr2On

double sr2On

Wi

double Wi

WiT

double WiT

XBorni

double XBorni

XLRi

double XLRi

Class neqsim.thermo.component.ComponentModifiedFurstElectrolyteEosMod2004

class ComponentModifiedFurstElectrolyteEosMod2004 extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

alphai

double alphai

alphaiT

double alphaiT

alphaiV

double alphaiV

bornOn

double bornOn

bornterm

double bornterm

dEpsdNi

double dEpsdNi

diElectricdn

double diElectricdn

diElectricdndT

double diElectricdndT

diElectricdndV

double diElectricdndV

epsi

double epsi

epsIonici

double epsIonici

epsIoniciV

double epsIoniciV

epsiV

double epsiV

ionicCoVolume

double ionicCoVolume

lrOn

double lrOn

solventdiElectricdn

double solventdiElectricdn

solventdiElectricdndT

double solventdiElectricdndT

sr2On

double sr2On

Wi

double Wi

WiT

double WiT

XBorni

double XBorni

XLRi

double XLRi

Class neqsim.thermo.component.ComponentPCSAFT

class ComponentPCSAFT extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

dahsSAFTdi

double dahsSAFTdi

dghsSAFTdi

double dghsSAFTdi

dlogghsSAFTdi

double dlogghsSAFTdi

dmSAFTdi

double dmSAFTdi

dnSAFTdi

double dnSAFTdi

dSAFTi

double dSAFTi

F1dispI1dn

double F1dispI1dn

F1dispSumTermdn

double F1dispSumTermdn

F1dispVolTermdn

double F1dispVolTermdn

F2dispI2dn

double F2dispI2dn

F2dispSumTermdn

double F2dispSumTermdn

F2dispVolTermdn

double F2dispVolTermdn

F2dispZHCdn

double F2dispZHCdn

useDISP1

int useDISP1

useDISP2

int useDISP2

useHS

int useHS

Class neqsim.thermo.component.ComponentPCSAFTa

class ComponentPCSAFTa extends ComponentPCSAFT implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

xsitedni

double[][] xsitedni

xsitedT

double[] xsitedT

xsitedV

double[] xsitedV

xsiteOld

double[] xsiteOld

Class neqsim.thermo.component.ComponentPR

class ComponentPR extends ComponentEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cachadinaCoeff

double[] cachadinaCoeff

Per-fluid Cachadina influence parameter coefficients [m0, m1, m2]. Units: mol^(2/3). When null, the general constant model is used.

influenceParameterModel

int influenceParameterModel

Influence parameter model type for gradient theory surface tension. 0 = Linear Zuo-Stenby (default), 1 = Cachadina et al. (2024) three-coefficient model.

Class neqsim.thermo.component.ComponentPrCPA

class ComponentPrCPA extends ComponentPR implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

Class neqsim.thermo.component.ComponentPRvolcor

class ComponentPRvolcor extends ComponentPR implements Serializable

serialVersionUID:

1000L

Serialized Fields

c

double c

Ci

double Ci

Cij

double[] Cij

CiT

double CiT

cT

double cT

Class neqsim.thermo.component.ComponentRK

class ComponentRK extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentSAFTVRMie

class ComponentSAFTVRMie extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentTemperature

double componentTemperature

Temperature at which dSAFTi was last computed.

dahsSAFTdi

double dahsSAFTdi

Derivative of hard-sphere Helmholtz energy with respect to moles of component i.

dF_DISP_SAFTdN

double dF_DISP_SAFTdN

dF_HC_SAFTdN

double dF_HC_SAFTdN

dghsSAFTdi

double dghsSAFTdi

Derivative of hard-sphere RDF with respect to moles of component i.

dlogghsSAFTdi

double dlogghsSAFTdi

Derivative of log(ghs) with respect to moles of component i.

dmSAFTdi

double dmSAFTdi

Derivative of mean segment number with respect to moles of component i.

dnSAFTdi

double dnSAFTdi

Derivative of packing fraction with respect to moles of component i.

dSAFTi

double dSAFTi

Temperature-dependent effective diameter for component i.

F1dispI1dn

double F1dispI1dn

F1dispSumTermdn

double F1dispSumTermdn

F1dispVolTermdn

double F1dispVolTermdn

F2dispI2dn

double F2dispI2dn

F2dispSumTermdn

double F2dispSumTermdn

F2dispVolTermdn

double F2dispVolTermdn

F2dispZHCdn

double F2dispZHCdn

nAssocSites

int nAssocSites

Number of association sites on this component (as used in SAFT-VR Mie).

xsiteAssoc

double[] xsiteAssoc

Association site fractions X_A for this component.

Class neqsim.thermo.component.ComponentSolid

class ComponentSolid extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

AntoineSolidequation

boolean AntoineSolidequation

CCequation

boolean CCequation

dpdt

double dpdt

pureCompFug

double pureCompFug

PvapSolid

double PvapSolid

PvapSoliddT

double PvapSoliddT

refPhase

PhaseInterface refPhase

Reference phase containing only this single component, i.e., mixing rules are not relevant.

soldens

double soldens

SolidFug

double SolidFug

solvol

double solvol

Class neqsim.thermo.component.ComponentSoreideWhitson

class ComponentSoreideWhitson extends ComponentPR implements Serializable

serialVersionUID:

1L

Class neqsim.thermo.component.ComponentSpanWagnerEos

class ComponentSpanWagnerEos extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentSrk

class ComponentSrk extends ComponentEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

factTemp

double factTemp

Class neqsim.thermo.component.ComponentSrkCPA

class ComponentSrkCPA extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

xsitedni

double[][] xsitedni

xsitedT

double[] xsitedT

xsitedTdT

double[] xsitedTdT

xsitedV

double[] xsitedV

xsiteOld

double[] xsiteOld

Class neqsim.thermo.component.ComponentSrkCPAMM

class ComponentSrkCPAMM extends ComponentSrkCPA implements Serializable

serialVersionUID:

1000L

Serialized Fields

bornRadius

double bornRadius

Born radius [Å].

hasMMParameters

boolean hasMMParameters

Flag indicating if this component has MM ion parameters.

srEpsi

double srEpsi

epsi = d(eps)/dn_i = packing fraction composition derivative.

srEpsiV

double srEpsiV

epsiV = d²(eps)/(dn_i dV).

srWi

double srWi

Wi = dW/dn_i from the electrolyte mixing rule.

srWiT

double srWiT

WiT = d²W/(dn_i dT) from the electrolyte mixing rule.

storedLogFugCoeff

double storedLogFugCoeff

Stored log fugacity coefficient to avoid exp/log round-trip precision loss. For electrolyte systems, dF/dN can be O(-800) for divalent ions, making Math.exp() underflow to 0 and Math.log(0) return -Infinity. This field stores the raw value directly.

u0_iw

double u0_iw

Ion-solvent interaction parameter at reference temperature [K].

uT_iw

double uT_iw

Temperature coefficient of ion-solvent interaction [K/K].

Class neqsim.thermo.component.ComponentSrkCPAs

class ComponentSrkCPAs extends ComponentSrkCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentSrkPeneloux

class ComponentSrkPeneloux extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

factTemp

double factTemp

Class neqsim.thermo.component.ComponentSrkvolcor

class ComponentSrkvolcor extends ComponentSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

c

double c

Ci

double Ci

Cij

double[] Cij

CiT

double CiT

cT

double cT

Class neqsim.thermo.component.ComponentTST

class ComponentTST extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentUMRCPA

class ComponentUMRCPA extends ComponentPR implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpaon

int cpaon

xsite

double[] xsite

xsitedni

double[][] xsitedni

xsitedT

double[] xsitedT

xsitedTdT

double[] xsitedTdT

xsitedV

double[] xsitedV

xsiteOld

double[] xsiteOld

Class neqsim.thermo.component.ComponentVegaEos

class ComponentVegaEos extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentWater

class ComponentWater extends ComponentEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentWax

class ComponentWax extends ComponentSolid implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentWaxWilson

class ComponentWaxWilson extends ComponentSolid implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.ComponentWonWax

class ComponentWonWax extends ComponentSolid implements Serializable

serialVersionUID:

1000L

Package neqsim.thermo.component.attractiveeosterm

Class neqsim.thermo.component.attractiveeosterm.AtractiveTermMatCopPRUMRNew

class AtractiveTermMatCopPRUMRNew extends AttractiveTermMatCopPRUMR implements Serializable

serialVersionUID:

1000L

Serialized Fields

orgpar

double orgpar

useStandardAlphaForSupercritical

boolean useStandardAlphaForSupercritical

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermBaseClass

class AttractiveTermBaseClass extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

component

ComponentEosInterface component

m

double m

parameters

double[] parameters

parametersSolid

double[] parametersSolid

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermCPAstatoil

class AttractiveTermCPAstatoil extends AttractiveTermSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

orgpar

double orgpar

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermGERG

class AttractiveTermGERG extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Serialized Fields

parametersGERG

double[] parametersGERG

parametersSolidGERG

double[] parametersSolidGERG

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermMatCop

class AttractiveTermMatCop extends AttractiveTermSrk implements Serializable

serialVersionUID:

1000L

Serialized Fields

orgpar

double orgpar

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermMatCopPR

class AttractiveTermMatCopPR extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Serialized Fields

orgpar

double orgpar

useStandardAlphaForSupercritical

boolean useStandardAlphaForSupercritical

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermMatCopPRUMR

class AttractiveTermMatCopPRUMR extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Serialized Fields

orgpar

double orgpar

useStandardAlphaForSupercritical

boolean useStandardAlphaForSupercritical

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermMollerup

class AttractiveTermMollerup extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPr

class AttractiveTermPr extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPr1978

class AttractiveTermPr1978 extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPrDanesh

class AttractiveTermPrDanesh extends AttractiveTermPr1978 implements Serializable

serialVersionUID:

1000L

Serialized Fields

mMod

double mMod

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPrDelft1998

class AttractiveTermPrDelft1998 extends AttractiveTermPr1978 implements Serializable

serialVersionUID:

1000L

Serialized Fields

isMethane

boolean isMethane

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPrGassem2001

class AttractiveTermPrGassem2001 extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Serialized Fields

A

double A

B

double B

C

double C

D

double D

E

double E

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermPrLeeKesler

class AttractiveTermPrLeeKesler extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermRk

class AttractiveTermRk extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermSchwartzentruber

class AttractiveTermSchwartzentruber extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

c

double c

d

double d

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermSoreideWhitson

class AttractiveTermSoreideWhitson extends AttractiveTermPr1978 implements Serializable

serialVersionUID:

1L

Serialized Fields

salinityFromPhase

double salinityFromPhase

Stores the salinity value for use in alpha and derivative calculations.

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermSrk

class AttractiveTermSrk extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermTwu

class AttractiveTermTwu extends AttractiveTermSrk implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermTwuCoon

class AttractiveTermTwuCoon extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double a

b

double b

c

double c

d

double d

e

double e

f

double f

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermTwuCoonParam

class AttractiveTermTwuCoonParam extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double a

b

double b

c

double c

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermTwuCoonStatoil

class AttractiveTermTwuCoonStatoil extends AttractiveTermBaseClass implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

double a

b

double b

c

double c

Class neqsim.thermo.component.attractiveeosterm.AttractiveTermUMRPRU

class AttractiveTermUMRPRU extends AttractiveTermPr implements Serializable

serialVersionUID:

1000L

Package neqsim.thermo.mixingrule

Class neqsim.thermo.mixingrule.CPAMixingRuleHandler

class CPAMixingRuleHandler extends MixingRuleHandler implements Serializable

serialVersionUID:

1000L

Serialized Fields

assosSchemeType

int[][] assosSchemeType

charge1A

int[] charge1A

charge2A

int[] charge2A

charge2B

int[] charge2B

charge4C

int[] charge4C

cpaBetaCross

double[][] cpaBetaCross

cpaEpsCross

double[][] cpaEpsCross

Class neqsim.thermo.mixingrule.CPAMixingRuleHandler.CPA_Radoch

class CPA_Radoch extends CPAMixingRuleHandler.CPA_Radoch_base implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.CPAMixingRuleHandler.CPA_Radoch_base

class CPA_Radoch_base extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

betamat

double[][] betamat

eps

double eps

epsab

double[][] epsab

Class neqsim.thermo.mixingrule.CPAMixingRuleHandler.PCSAFTa_Radoch

class PCSAFTa_Radoch extends CPAMixingRuleHandler.CPA_Radoch implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler

class EosMixingRuleHandler extends MixingRuleHandler implements Serializable

serialVersionUID:

1000L

Serialized Fields

A

double A

Ai

double Ai

Atot

double Atot

B

double B

Bi

double Bi

bmixType

int bmixType

Btot

double Btot

classicOrHV

String[][] classicOrHV

classicOrWS

String[][] classicOrWS

HValpha

double[][] HValpha

HVDij

double[][] HVDij

HVDijT

double[][] HVDijT

intparam

double[][] intparam

intparamij

double[][] intparamij

intparamji

double[][] intparamji

intparamT

double[][] intparamT

intparamTType

int[][] intparamTType

mixingRuleGEModel

String mixingRuleGEModel

nEOSkij

double nEOSkij

NRTLalpha

double[][] NRTLalpha

NRTLDij

double[][] NRTLDij

NRTLDijT

double[][] NRTLDijT

wij

double[][][] wij

wijCalcOrFitted

int[][] wijCalcOrFitted

WSintparam

double[][] WSintparam

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ClassicSRK

class ClassicSRK extends EosMixingRuleHandler.ClassicVdW implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ClassicSRKT

class ClassicSRKT extends EosMixingRuleHandler.ClassicSRK implements Serializable

serialVersionUID:

1000L

Serialized Fields

type

int type

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ClassicSRKT2

class ClassicSRKT2 extends EosMixingRuleHandler.ClassicSRKT implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ClassicSRKT2x

class ClassicSRKT2x extends EosMixingRuleHandler.ClassicSRKT2 implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ClassicVdW

class ClassicVdW extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.ElectrolyteMixRule

class ElectrolyteMixRule extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

usePredictiveModel

boolean usePredictiveModel

Flag to enable predictive descriptor-based Wij model. When true, uses solvent dielectric constant to compute Wij parameters universally. When false (default), uses solvent-specific fitted parameter tables.

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.SRKHuronVidal

class SRKHuronVidal extends EosMixingRuleHandler.ClassicSRK implements Serializable

serialVersionUID:

1000L

Serialized Fields

gePhase

PhaseGENRTLmodifiedHV gePhase

hwfc

double hwfc

orgPhase

PhaseInterface orgPhase

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.SRKHuronVidal2

class SRKHuronVidal2 extends EosMixingRuleHandler.ClassicSRK implements Serializable

serialVersionUID:

1000L

Serialized Fields

abf

double[] abf

abft

double[] abft

abft2

double[] abft2

ad2

double[][] ad2

ader

double[] ader

adert

double[] adert

alpha_mix

double alpha_mix

b_mix

double b_mix

bc

double[] bc

bd2

double[][] bd2

BDER

double[] BDER

bdert

double bdert

BDERT

double[] BDERT

d2adt2

double d2adt2

d2bdt2

double d2bdt2

d2qp

double[] d2qp

dadt

double dadt

dbdt

double dbdt

DDE2

double DDE2

gePhase

PhaseGE gePhase

gex

double gex

hwfc

double hwfc

oneSubAlf

double[] oneSubAlf

orgPhase

PhaseInterface orgPhase

Q

double Q

qf1

double[] qf1

qf2

double[][] qf2

qft

double[][] qft

QFTD

double[] QFTD

qPure

double[] qPure

qPuredT

double[] qPuredT

qPuredTdT

double[] qPuredTdT

QT

double QT

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.WhitsonSoreideMixingRule

class WhitsonSoreideMixingRule extends EosMixingRuleHandler.ClassicSRK implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.mixingrule.EosMixingRuleHandler.WongSandlerMixingRule

class WongSandlerMixingRule extends EosMixingRuleHandler.SRKHuronVidal2 implements Serializable

serialVersionUID:

1000L

Serialized Fields

abf

double[] abf

abft

double[] abft

abft2

double[] abft2

ad2

double[][] ad2

ader

double[] ader

adert

double[] adert

alpha_mix

double alpha_mix

b_mix

double b_mix

bc

double[] bc

bd2

double[][] bd2

BDER

double[] BDER

bdert

double bdert

BDERT

double[] BDERT

cpex

double cpex

d2adt2

double d2adt2

d2bdt2

double d2bdt2

d2qp

double[] d2qp

dadt

double dadt

dbdt

double dbdt

DDE2

double DDE2

gex

double gex

hex

double hex

hwfc

double hwfc

oneSubAlf

double[] oneSubAlf

Q

double Q

qf1

double[] qf1

qf2

double[][] qf2

qft

double[][] qft

QFTD

double[] QFTD

qPure

double[] qPure

qPuredT

double[] qPuredT

qPuredTdT

double[] qPuredTdT

QT

double QT

Class neqsim.thermo.mixingrule.MixingRuleHandler

class MixingRuleHandler extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

mixingRuleName

String mixingRuleName

Package neqsim.thermo.phase

Class neqsim.thermo.phase.CPAContribution

class CPAContribution extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

phase

PhaseEos phase

Reference to the parent phase. Must be a PhaseEos subclass.

tempTotVol

double tempTotVol

Temporary molar volume storage.

Class neqsim.thermo.phase.Phase

class Phase extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

Mole fraction of this phase of system. beta = numberOfMolesInPhase/numberOfMolesInSystem. NB! numberOfMolesInSystem is not known to the phase.

calcMolarVolume

boolean calcMolarVolume

chemSyst

boolean chemSyst

componentArray

ComponentInterface[] componentArray

constantPhaseVolume

boolean constantPhaseVolume

diElectricConstant

double diElectricConstant

initType

int initType

mixingRuleType

MixingRuleTypeInterface mixingRuleType

molarVolume

double molarVolume

numberOfComponents

int numberOfComponents

numberOfMolesInPhase

double numberOfMolesInPhase

Number of moles in phase. numberOfMolesInPhase = numberOfMolesInSystem*beta. NB! numberOfMolesInSystem is not known to the phase.

phaseVolume

double phaseVolume

physicalPropertyHandler

PhysicalPropertyHandler physicalPropertyHandler

ppm

PhysicalPropertyModel ppm

pressure

double pressure

Pressure of phase.

pt

PhaseType pt

refPhase

PhaseInterface[] refPhase

Reference phase per component. Relevant for solids and chemicalreactions.

temperature

double temperature

Temperature of phase.

thermoPropertyModelName

String thermoPropertyModelName

useVolumeCorrection

boolean useVolumeCorrection

Z

double Z

Class neqsim.thermo.phase.PhaseAmmoniaEos

class PhaseAmmoniaEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

Cp

double Cp

Cv

double Cv

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnergy

double internalEnergy

JTcoef

double JTcoef

kappa

double kappa

W

double W

Class neqsim.thermo.phase.PhaseBNS

class PhaseBNS extends PhasePrEos implements Serializable

serialVersionUID:

1L

Serialized Fields

acfs

double[] acfs

mws

double[] mws

omegaA

double[] omegaA

omegaB

double[] omegaB

pcs

double[] pcs

tcs

double[] tcs

vshift

double[] vshift

Class neqsim.thermo.phase.PhaseBWRSEos

class PhaseBWRSEos extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

mixBE

double[] mixBE

Mole-fraction-weighted exponential MBWR coefficients for the mixture.

mixBEdT

double[] mixBEdT

Mole-fraction-weighted exponential temperature derivatives for the mixture.

mixBEdTdT

double[] mixBEdTdT

Mole-fraction-weighted exponential second temperature derivatives for the mixture.

mixBP

double[] mixBP

Mole-fraction-weighted polynomial MBWR coefficients for the mixture.

mixBPdT

double[] mixBPdT

Mole-fraction-weighted polynomial temperature derivatives for the mixture.

mixBPdTdT

double[] mixBPdTdT

Mole-fraction-weighted polynomial second temperature derivatives for the mixture.

mixGamma

double mixGamma

Mixed gamma parameter = 1/rhoc_mix^2 for one-fluid mixing.

OE

int OE

OP

int OP

Class neqsim.thermo.phase.PhaseCSPsrkEos

class PhaseCSPsrkEos extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

acrefBWRSPhase

double acrefBWRSPhase

brefBWRSPhase

double brefBWRSPhase

f_scale_mix

double f_scale_mix

h_scale_mix

double h_scale_mix

mrefBWRSPhase

double mrefBWRSPhase

refBWRSPhase

PhaseSrkEos refBWRSPhase

Class neqsim.thermo.phase.PhaseDefault

class PhaseDefault extends Phase implements Serializable

serialVersionUID:

1000L

Serialized Fields

defComponent

ComponentInterface defComponent

Class neqsim.thermo.phase.PhaseDesmukhMather

class PhaseDesmukhMather extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

aij

double[][] aij

bij

double[][] bij

GE

double GE

Class neqsim.thermo.phase.PhaseDuanSun

class PhaseDuanSun extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

alpha

double[][] alpha

Dij

double[][] Dij

GE

double GE

intparam

double[][] intparam

mixRule

String[][] mixRule

Class neqsim.thermo.phase.PhaseElectrolyteCPA

class PhaseElectrolyteCPA extends PhaseModifiedFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

assSiteNumber

int[] assSiteNumber

corr2Matrix

org.ejml.data.DMatrixRMaj corr2Matrix

corr3Matrix

org.ejml.data.DMatrixRMaj corr3Matrix

corr4Matrix

org.ejml.data.DMatrixRMaj corr4Matrix

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

delta

double[][] delta

deltadT

double[][] deltadT

deltadTdT

double[][] deltadTdT

deltaNog

double[][] deltaNog

dFCPAdT

double dFCPAdT

dFCPAdTdT

double dFCPAdTdT

dFCPAdTdV

double dFCPAdTdV

dFCPAdV

double dFCPAdV

dFCPAdVdV

double dFCPAdVdV

dFCPAdVdVdV

double dFCPAdVdVdV

FCPA

double FCPA

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

gvector

double[][] gvector

hcpatot

double hcpatot

hessianInvers

org.ejml.simple.SimpleMatrix hessianInvers

hessianMatrix

org.ejml.simple.SimpleMatrix hessianMatrix

KlkMatrix

org.ejml.simple.SimpleMatrix KlkMatrix

Klkni

double[][][] Klkni

KlkTMatrix

org.ejml.simple.SimpleMatrix KlkTMatrix

KlkTTMatrix

org.ejml.simple.SimpleMatrix KlkTTMatrix

KlkTVMatrix

org.ejml.simple.SimpleMatrix KlkTVMatrix

KlkVMatrix

org.ejml.simple.SimpleMatrix KlkVMatrix

KlkVVMatrix

org.ejml.simple.SimpleMatrix KlkVVMatrix

KlkVVVMatrix

org.ejml.simple.SimpleMatrix KlkVVVMatrix

ksiMatrix

org.ejml.simple.SimpleMatrix ksiMatrix

lngi

double[] lngi

moleculeNumber

int[] moleculeNumber

mVector

org.ejml.simple.SimpleMatrix mVector

oldTotalNumberOfAccociationSites

int oldTotalNumberOfAccociationSites

QMatksiksiksi

org.ejml.simple.SimpleMatrix QMatksiksiksi

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

udotMatrix

org.ejml.simple.SimpleMatrix udotMatrix

udotTimesmiMatrix

org.ejml.simple.SimpleMatrix udotTimesmiMatrix

udotTimesmMatrix

org.ejml.simple.SimpleMatrix udotTimesmMatrix

uMatrix

org.ejml.simple.SimpleMatrix uMatrix

Class neqsim.thermo.phase.PhaseElectrolyteCPAAdvanced

class PhaseElectrolyteCPAAdvanced extends PhaseElectrolyteCPAstatoil implements Serializable

serialVersionUID:

1000L

Serialized Fields

advBornOn

double advBornOn

Flag to enable/disable the phase-level Born replacement. Disabled because the advanced Born radii are now applied through the component-level XBorni override and the overridden calcBornX() method, which makes the parent's Born term automatically use advanced radii.

advSROn

double advSROn

Flag to enable/disable the advanced short-range term. Disabled by default until ion-specific W parameters are fitted in the correct NeqSim unit system (wij ~ 1e-5).

fAdvBorn

double fAdvBorn

Cached advanced Born solvation energy and derivatives.

fAdvBorndT

double fAdvBorndT

fAdvBorndTdT

double fAdvBorndTdT

fAdvSR

double fAdvSR

Cached advanced short-range Helmholtz energy and derivatives.

fAdvSRdT

double fAdvSRdT

fAdvSRdTdT

double fAdvSRdTdT

fAdvSRdTdV

double fAdvSRdTdV

fAdvSRdV

double fAdvSRdV

fAdvSRdVdV

double fAdvSRdVdV

fAdvSRdVdVdV

double fAdvSRdVdVdV

ionPairFractionReduction

double ionPairFractionReduction

Ion-pair correction to ionic strength.

ionPairOn

double ionPairOn

Flag to enable/disable ion-pair formation.

Class neqsim.thermo.phase.PhaseElectrolyteCPAMM

class PhaseElectrolyteCPAMM extends PhaseSrkCPA implements Serializable

serialVersionUID:

1000L

Serialized Fields

bornOn

boolean bornOn

Flag to enable/disable Born term.

bornX

double bornX

Born X factor: Σ(n_i * z_i² / R_Born,i) [mol/m].

debyeHuckelOn

boolean debyeHuckelOn

Flag to enable/disable Debye-Hückel term.

dielectricMixingRule

PhaseElectrolyteCPAMM.DielectricMixingRule dielectricMixingRule

Current dielectric mixing rule.

ionSolventW

double ionSolventW

Ion-solvent short-range interaction parameter W [J/mol]. Calculated from wij mixing rule parameters which are populated from ΔU_iw values.

ionSolventWdT

double ionSolventWdT

Temperature derivative of W [J/(mol·K)].

kappa

double kappa

Debye screening length inverse (kappa) [1/m].

kappadT

double kappadT

Temperature derivative of kappa [1/(m·K)].

meanIonDiameter

double meanIonDiameter

Mean closest-approach diameter for extended Debye-Hückel [m]. Computed as the charge-weighted average of ion LJ diameters: d = Σ(n_i z_i² σ_i) / Σ(n_i z_i²).

mixturePermittivity

double mixturePermittivity

Mixture dielectric constant including ion contributions [-].

packingFraction

double packingFraction

Packing fraction η = (π N_A / 6V) Σ n_i σ_i³ [-].

packingFractiondV

double packingFractiondV

Volume derivative of packing fraction [1/m³].

shortRangeOn

boolean shortRangeOn

Flag to enable/disable short-range ion-solvent term. Uses the Furst electrolyte mixing rule correlation for wij parameters, combined with the FSR2 Helmholtz framework. Enable this via setShortRangeOn(true).

solventPermittivity

double solventPermittivity

Solvent static permittivity (dielectric constant) [-].

solventPermittivitydT

double solventPermittivitydT

Temperature derivative of solvent permittivity [1/K].

solventPermittivitydTdT

double solventPermittivitydTdT

Second temperature derivative of solvent permittivity [1/K²].

srW

double srW

Short-range W parameter from electrolyte mixing rule [m³·mol].

srWT

double srWT

Temperature derivative of W [m³·mol/K].

srWTT

double srWTT

Second temperature derivative of W [m³·mol/K²].

tauDH

double tauDH

DH screening factor τ(χ) = 3ψ(χ)/χ³ where χ = κd [-]. Reduces the primitive DH (DHLL) contribution to account for finite ion size. τ = 1.0 recovers the DHLL; τ ≈ 0.6 at 1 molal NaCl.

tauDHprime

double tauDHprime

Derivative of screening factor dτ/dχ [-]. Used for composition derivatives where κ changes significantly with added ions.

wij

double[][] wij

Ion-solvent binary interaction parameters wij. These are populated from the ΔU_iw parameters from Maribo-Mogensen thesis Table 6.11. Format: wij[i][j] where i is ion index and j is solvent index. Units: Kelvin (energy/R).

wijT

double[][] wijT

Temperature derivatives of ion-solvent wij parameters. wijT[i][j] = d(wij)/dT. Units: K/K (dimensionless).

Class neqsim.thermo.phase.PhaseElectrolyteCPAOld

class PhaseElectrolyteCPAOld extends PhaseModifiedFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

dFCPAdTdT

double dFCPAdTdT

dFCPAdXdXdTtotal

double dFCPAdXdXdTtotal

dFdVdXdXdVtotal

double dFdVdXdXdVtotal

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

hcpatot

double hcpatot

hcpatotdT

double hcpatotdT

hcpatotdTdT

double hcpatotdTdT

lngcpa

double lngcpa

lngcpav

double lngcpav

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

Class neqsim.thermo.phase.PhaseElectrolyteCPAstatoil

class PhaseElectrolyteCPAstatoil extends PhaseElectrolyteCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseEos

class PhaseEos extends Phase implements Serializable

serialVersionUID:

1000L

Serialized Fields

delta1

double delta1

delta2

double delta2

f_loc

double f_loc

g

double g

loc_A

double loc_A

loc_AT

double loc_AT

loc_ATT

double loc_ATT

loc_B

double loc_B

mixRule

EosMixingRulesInterface mixRule

mixSelect

EosMixingRuleHandler mixSelect

uEOS

double uEOS

wEOS

double wEOS

Class neqsim.thermo.phase.PhaseEOSCGEos

class PhaseEOSCGEos extends PhaseGERG2008Eos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseGE

class PhaseGE extends Phase implements Serializable

serialVersionUID:

1000L

Serialized Fields

mixRule

EosMixingRulesInterface mixRule

mixSelect

EosMixingRuleHandler mixSelect

Class neqsim.thermo.phase.PhaseGENRTL

class PhaseGENRTL extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

alpha

double[][] alpha

Dij

double[][] Dij

GE

double GE

intparam

double[][] intparam

mixRuleString

String[][] mixRuleString

Class neqsim.thermo.phase.PhaseGENRTLmodifiedHV

class PhaseGENRTLmodifiedHV extends PhaseGENRTL implements Serializable

serialVersionUID:

1000L

Serialized Fields

DijT

double[][] DijT

type

int type

Class neqsim.thermo.phase.PhaseGENRTLmodifiedWS

class PhaseGENRTLmodifiedWS extends PhaseGENRTLmodifiedHV implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseGERG2004Eos

class PhaseGERG2004Eos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

CpGERG

double CpGERG

CvGERG

double CvGERG

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnery

double internalEnery

IPHASE

int IPHASE

JTcoef

double JTcoef

okVolume

boolean okVolume

xFracGERG

double[] xFracGERG

Class neqsim.thermo.phase.PhaseGERG2008Eos

class PhaseGERG2008Eos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

CpGERG2008

double CpGERG2008

CvGERG2008

double CvGERG2008

enthalpy

double enthalpy

entropy

double entropy

gergModelType

GERG2008Type gergModelType

The GERG-2008 model variant to use. Default is STANDARD.

gibbsEnergy

double gibbsEnergy

internalEnery

double internalEnery

IPHASE

int IPHASE

JTcoef

double JTcoef

kappa

double kappa

okVolume

boolean okVolume

W

double W

Class neqsim.thermo.phase.PhaseGEUnifac

class PhaseGEUnifac extends PhaseGEUniquac implements Serializable

serialVersionUID:

1000L

Serialized Fields

aij

double[][] aij

bij

double[][] bij

checkedGroups

boolean checkedGroups

cij

double[][] cij

Class neqsim.thermo.phase.PhaseGEUnifacPSRK

class PhaseGEUnifacPSRK extends PhaseGEUnifac implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseGEUnifacUMRPRU

class PhaseGEUnifacUMRPRU extends PhaseGEUnifac implements Serializable

serialVersionUID:

1000L

Serialized Fields

FCommontemp

double FCommontemp

gropuNames

String[] gropuNames

Qmix

double[] Qmix

QmixdN

double[][] QmixdN

VCommontemp

double VCommontemp

Class neqsim.thermo.phase.PhaseGEUniquac

class PhaseGEUniquac extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

alpha

double[][] alpha

Dij

double[][] Dij

GE

double GE

intparam

double[][] intparam

mixRule

String[][] mixRule

Class neqsim.thermo.phase.PhaseGEUniquacmodifiedHV

class PhaseGEUniquacmodifiedHV extends PhaseGEUniquac implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseGEWilson

class PhaseGEWilson extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

GE

double GE

Class neqsim.thermo.phase.PhaseHydrate

class PhaseHydrate extends Phase implements Serializable

serialVersionUID:

1000L

Serialized Fields

hydrateModel

String hydrateModel

Class neqsim.thermo.phase.PhaseIdealGas

class PhaseIdealGas extends Phase implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseKentEisenberg

class PhaseKentEisenberg extends PhaseGENRTL implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseLeachmanEos

class PhaseLeachmanEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

CpLeachman

double CpLeachman

CvLeachman

double CvLeachman

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnery

double internalEnery

IPHASE

int IPHASE

JTcoef

double JTcoef

kappa

double kappa

okVolume

boolean okVolume

W

double W

Class neqsim.thermo.phase.PhaseModifiedFurstElectrolyteEos

class PhaseModifiedFurstElectrolyteEos extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

alphaLR2

double alphaLR2

alphaLRdT

double alphaLRdT

alphaLRdTdT

double alphaLRdTdT

alphaLRdTdV

double alphaLRdTdV

alphaLRdV

double alphaLRdV

alphaLRdVdV

double alphaLRdVdV

bornOn

double bornOn

bornX

double bornX

diElectricConstantdT

double diElectricConstantdT

diElectricConstantdTdT

double diElectricConstantdTdT

diElectricConstantdTdV

double diElectricConstantdTdV

diElectricConstantdV

double diElectricConstantdV

diElectricConstantdVdV

double diElectricConstantdVdV

dielectricMixingRule

PhaseModifiedFurstElectrolyteEos.DielectricMixingRule dielectricMixingRule

The dielectric constant mixing rule to use for mixed solvents.

electrolyteMixingRule

ElectrolyteMixingRulesInterface electrolyteMixingRule

eps

double eps

epsdV

double epsdV

epsdVdV

double epsdVdV

epsIonic

double epsIonic

epsIonicdV

double epsIonicdV

epsIonicdVdV

double epsIonicdVdV

gamma

double gamma

gammaold

double gammaold

lrOn

double lrOn

shieldingParameter

double shieldingParameter

shieldingParameterdT

double shieldingParameterdT

solventDiElectricConstant

double solventDiElectricConstant

solventDiElectricConstantdT

double solventDiElectricConstantdT

solventDiElectricConstantdTdT

double solventDiElectricConstantdTdT

sr2On

double sr2On

W

double W

WT

double WT

WTT

double WTT

XLR

double XLR

XLRdT

double XLRdT

Class neqsim.thermo.phase.PhaseModifiedFurstElectrolyteEosMod2004

class PhaseModifiedFurstElectrolyteEosMod2004 extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

alphaLR2

double alphaLR2

alphaLRdT

double alphaLRdT

alphaLRdTdT

double alphaLRdTdT

alphaLRdTdV

double alphaLRdTdV

alphaLRdV

double alphaLRdV

alphaLRdVdV

double alphaLRdVdV

bornOn

double bornOn

bornX

double bornX

diElectricConstantdT

double diElectricConstantdT

diElectricConstantdTdT

double diElectricConstantdTdT

diElectricConstantdTdV

double diElectricConstantdTdV

diElectricConstantdV

double diElectricConstantdV

diElectricConstantdVdV

double diElectricConstantdVdV

electrolyteMixingRule

ElectrolyteMixingRulesInterface electrolyteMixingRule

eps

double eps

epsdV

double epsdV

epsdVdV

double epsdVdV

epsIonic

double epsIonic

epsIonicdV

double epsIonicdV

epsIonicdVdV

double epsIonicdVdV

gamma

double gamma

gammaold

double gammaold

lrOn

double lrOn

shieldingParameter

double shieldingParameter

solventDiElectricConstant

double solventDiElectricConstant

solventDiElectricConstantdT

double solventDiElectricConstantdT

solventDiElectricConstantdTdT

double solventDiElectricConstantdTdT

sr2On

double sr2On

W

double W

WT

double WT

WTT

double WTT

XLR

double XLR

Class neqsim.thermo.phase.PhasePCSAFT

class PhasePCSAFT extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

aConstSAFT

double[][] aConstSAFT

aHSSAFT

double aHSSAFT

bConstSAFT

double[][] bConstSAFT

daHCSAFTdN

double daHCSAFTdN

daHSSAFTdN

double daHSSAFTdN

daHSSAFTdNdN

double daHSSAFTdNdN

dF1dispI1dT

double dF1dispI1dT

dF1dispI1dTdT

double dF1dispI1dTdT

dF1dispI1dTdV

double dF1dispI1dTdV

dF1dispSumTermdT

double dF1dispSumTermdT

dF1dispSumTermdTdT

double dF1dispSumTermdTdT

dF1dispVolTermdT

double dF1dispVolTermdT

dF2dispI2dT

double dF2dispI2dT

dF2dispI2dTdT

double dF2dispI2dTdT

dF2dispI2dTdV

double dF2dispI2dTdV

dF2dispSumTermdT

double dF2dispSumTermdT

dF2dispSumTermdTdT

double dF2dispSumTermdTdT

dF2dispZHCdT

double dF2dispZHCdT

dF2dispZHCdTdT

double dF2dispZHCdTdT

dF2dispZHCdTdV

double dF2dispZHCdTdV

dgHSSAFTdN

double dgHSSAFTdN

dgHSSAFTdNdN

double dgHSSAFTdNdN

dmeanSAFT

double dmeanSAFT

dNSAFTdT

double dNSAFTdT

dNSAFTdTdT

double dNSAFTdTdT

dNSAFTdTdV

double dNSAFTdTdV

dnSAFTdV

double dnSAFTdV

dnSAFTdVdV

double dnSAFTdVdV

dSAFT

double dSAFT

F1dispI1

double F1dispI1

F1dispI1dm

double F1dispI1dm

F1dispI1dN

double F1dispI1dN

F1dispI1dNdN

double F1dispI1dNdN

F1dispI1dV

double F1dispI1dV

F1dispI1dVdV

double F1dispI1dVdV

F1dispSumTerm

double F1dispSumTerm

F1dispVolTerm

double F1dispVolTerm

F1dispVolTermdV

double F1dispVolTermdV

F1dispVolTermdVdV

double F1dispVolTermdVdV

F2dispI2

double F2dispI2

F2dispI2dm

double F2dispI2dm

F2dispI2dN

double F2dispI2dN

F2dispI2dNdN

double F2dispI2dNdN

F2dispI2dV

double F2dispI2dV

F2dispI2dVdV

double F2dispI2dVdV

F2dispSumTerm

double F2dispSumTerm

F2dispZHC

double F2dispZHC

F2dispZHCdm

double F2dispZHCdm

F2dispZHCdN

double F2dispZHCdN

F2dispZHCdNdN

double F2dispZHCdNdN

F2dispZHCdV

double F2dispZHCdV

F2dispZHCdVdV

double F2dispZHCdVdV

ghsSAFT

double ghsSAFT

mdSAFT

double mdSAFT

mmin1SAFT

double mmin1SAFT

mSAFT

double mSAFT

nmSAFT

double nmSAFT

nSAFT

double nSAFT

useDISP1

int useDISP1

useDISP2

int useDISP2

useHS

int useHS

volumeSAFT

double volumeSAFT

Class neqsim.thermo.phase.PhasePCSAFTa

class PhasePCSAFTa extends PhasePCSAFT implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

hcpatot

double hcpatot

hcpatotdT

double hcpatotdT

hcpatotdTdT

double hcpatotdTdT

lngcpa

double lngcpa

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

Class neqsim.thermo.phase.PhasePCSAFTRahmat

class PhasePCSAFTRahmat extends PhasePCSAFT implements Serializable

serialVersionUID:

1000L

Serialized Fields

daHSSAFTdNdNdN

double daHSSAFTdNdNdN

dgHSSAFTdNdNdN

double dgHSSAFTdNdNdN

dnSAFTdVdVdV

double dnSAFTdVdVdV

F1dispI1dNdNdN

double F1dispI1dNdNdN

F1dispI1dVdV

double F1dispI1dVdV

F1dispI1dVdVdV

double F1dispI1dVdVdV

F1dispVolTermdVdVdV

double F1dispVolTermdVdVdV

F2dispI2dNdNdN

double F2dispI2dNdNdN

F2dispI2dVdV

double F2dispI2dVdV

F2dispI2dVdVdV

double F2dispI2dVdVdV

F2dispZHCdNdNdN

double F2dispZHCdNdNdN

F2dispZHCdVdV

double F2dispZHCdVdV

F2dispZHCdVdVdV

double F2dispZHCdVdVdV

Class neqsim.thermo.phase.PhasePitzer

class PhasePitzer extends PhaseGE implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta0

double[][] beta0

beta0T1

double[][] beta0T1

T-dependent coefficients for beta0: beta0(T) = beta0_25 + T1*(1/T-1/Tr) + T2*ln(T/Tr).

beta0T2

double[][] beta0T2

beta1

double[][] beta1

beta1T1

double[][] beta1T1

T-dependent coefficients for beta1.

beta1T2

double[][] beta1T2

beta2

double[][] beta2

Second virial coefficient for 2-2 electrolytes (Harvie & Weare 1984).

cphi

double[][] cphi

cphiT1

double[][] cphiT1

T-dependent coefficients for Cphi.

cphiT2

double[][] cphiT2

parametersLoaded

boolean parametersLoaded

Whether parameters have been loaded from database.

psi

double[][][] psi

Ternary mixing parameter psi (cation-cation-anion or anion-anion-cation).

theta

double[][] theta

Cation-cation or anion-anion mixing parameter theta (Harvie & Weare 1984).

Class neqsim.thermo.phase.PhasePrCPA

class PhasePrCPA extends PhasePrEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

hcpatot

double hcpatot

hcpatotdT

double hcpatotdT

hcpatotdTdT

double hcpatotdTdT

lngcpa

double lngcpa

lngcpav

double lngcpav

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

Class neqsim.thermo.phase.PhasePrEos

class PhasePrEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhasePrEosvolcor

class PhasePrEosvolcor extends PhasePrEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

C

double C

cachedCi

double[] cachedCi

cachedCij

double[][] cachedCij

cachedCiT

double[] cachedCiT

CT

double CT

Ctot

double Ctot

loc_C

double loc_C

Class neqsim.thermo.phase.PhasePureComponentSolid

class PhasePureComponentSolid extends PhaseSolid implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseRK

class PhaseRK extends PhaseEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseSAFTVRMie

class PhaseSAFTVRMie extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

a1Disp

double a1Disp

a2Disp

double a2Disp

a3Disp

double a3Disp

aDispPerComp

double[] aDispPerComp

Per-component weighted pair-sum of dispersion terms: aDispPerComp[i] = sum_l xs_l * (a1_il+a2_il+a3_il). Used for analytical dF_DISP/dNi computation. Only allocated for multi-component systems.

aHSSAFT

double aHSSAFT

assocDVDVValid

boolean assocDVDVValid

Whether cacheddFAssocDVDV is valid (computed after molar volume convergence).

cacheddFAssocDV

double cacheddFAssocDV

Cached dF_ASSOC/dV_SI from volInit (m^-3).

cacheddFAssocDVDV

double cacheddFAssocDVDV

Cached d2F_ASSOC/dV_SI2 from volInit (m^-6), computed numerically.

cachedFAssoc

double cachedFAssoc

Cached F_ASSOC value from volInit.

crossAssocScheme

int[][][][] crossAssocScheme

Cross-association scheme indicator. crossAssocScheme[compI][compJ][siteA][siteB] = 1 if site A on comp I can bond with site B on comp J.

d2a1DispDeta2

double d2a1DispDeta2

d2a1DispDetaDT

double d2a1DispDetaDT

d2a1DispDT2

double d2a1DispDT2

d2a2DispDeta2

double d2a2DispDeta2

d2a2DispDetaDT

double d2a2DispDetaDT

d2a2DispDT2

double d2a2DispDT2

d2a3DispDeta2

double d2a3DispDeta2

d2a3DispDetaDT

double d2a3DispDetaDT

d2a3DispDT2

double d2a3DispDT2

da1DispDeta

double da1DispDeta

da1DispDT

double da1DispDT

da2DispDeta

double da2DispDeta

da2DispDT

double da2DispDT

da3DispDeta

double da3DispDeta

da3DispDT

double da3DispDT

daHSSAFTdN

double daHSSAFTdN

daHSSAFTdNdN

double daHSSAFTdNdN

deltaAssoc

double[][] deltaAssoc

Association strength delta[siteI][siteJ] between flattened sites (global indexing). Delta = scheme * (exp(eps_HB/RT) - 1) * sigma_ij^3 * NA * 1e5 * kappa_ij * g_HS.

deltadTAssoc

double[][] deltadTAssoc

Temperature derivative of delta.

dgHSSAFTdN

double dgHSSAFTdN

dgHSSAFTdNdN

double dgHSSAFTdNdN

dmeanSAFT

double dmeanSAFT

dNSAFTdT

double dNSAFTdT

dNSAFTdTdT

double dNSAFTdTdT

dNSAFTdTdV

double dNSAFTdTdV

dnSAFTdV

double dnSAFTdV

dnSAFTdVdV

double dnSAFTdVdV

dSAFT

double dSAFT

gcpaAssoc

double gcpaAssoc

Association g (hard-sphere RDF used in delta). For SAFT-VR Mie this equals ghsSAFT.

gcpavAssoc

double gcpavAssoc

d(ln g)/dV in SI units (m^3).

gcpavvAssoc

double gcpavvAssoc

d2(ln g)/dV2 in SI units (m^6).

gcpavvvAssoc

double gcpavvvAssoc

d3(ln g)/dV3 in SI units.

ghsSAFT

double ghsSAFT

hcpatot

double hcpatot

Sum of (1-XA)*ni over all sites: hcpatot = sum_i ni * sum_A (1 - X_Ai).

hcpatotdT

double hcpatotdT

dh/dT.

hcpatotdTdT

double hcpatotdTdT

d2h/dT2.

mmin1SAFT

double mmin1SAFT

mSAFT

double mSAFT

nSAFT

double nSAFT

selfAssocScheme

int[][][] selfAssocScheme

Self-association scheme indicator. selfAssocScheme[comp][siteA][siteB] = 1 if site A can bond with site B on the same component (0 otherwise).

siteOffset

int[] siteOffset

Site offset for component i: first site of comp i is siteOffset[i].

totalNumberOfAssociationSites

int totalNumberOfAssociationSites

Total number of association sites across all components.

useASSOC

int useASSOC

Toggle association contribution (1 = on, 0 = off).

useDISP

int useDISP

Toggle dispersion contribution (1 = on, 0 = off).

useHS

int useHS

Toggle hard-sphere plus chain contribution (1 = on, 0 = off).

volumeSAFT

double volumeSAFT

Class neqsim.thermo.phase.PhaseSolid

class PhaseSolid extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

useEosProperties

boolean useEosProperties

Flag to control whether EOS-based properties should be used instead of literature-based values.

When true, thermodynamic properties (density, entropy, enthalpy, heat capacities) are calculated using the underlying equation of state (SRK EOS). This is useful for Pedersen's approach where asphaltene is modeled as a heavy liquid phase with EOS-calculable properties.

When false (default), solid-specific literature values are used for properties like density (e.g., 1150 kg/m³ for asphaltene), and residual properties return 0 as is typical for solids.

Class neqsim.thermo.phase.PhaseSolidComplex

class PhaseSolidComplex extends PhaseSolid implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseSoreideWhitson

class PhaseSoreideWhitson extends PhasePrEos implements Serializable

serialVersionUID:

1L

Serialized Fields

salinity

double salinity

salinityConcentration

double salinityConcentration

Class neqsim.thermo.phase.PhaseSpanWagnerEos

class PhaseSpanWagnerEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cp

double cp

cv

double cv

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnergy

double internalEnergy

jouleThomson

double jouleThomson

molarDensity

double molarDensity

soundSpeed

double soundSpeed

Class neqsim.thermo.phase.PhaseSrkCPA

class PhaseSrkCPA extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeAccosComp

int[] activeAccosComp

assSiteNumber

int[] assSiteNumber

corr2Matrix

org.ejml.data.DMatrixRMaj corr2Matrix

corr3Matrix

org.ejml.data.DMatrixRMaj corr3Matrix

corr4Matrix

org.ejml.data.DMatrixRMaj corr4Matrix

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

delta

double[][] delta

deltadT

double[][] deltadT

deltadTdT

double[][] deltadTdT

deltaNog

double[][] deltaNog

dFCPAdT

double dFCPAdT

dFCPAdTdT

double dFCPAdTdT

dFCPAdTdV

double dFCPAdTdV

dFCPAdV

double dFCPAdV

dFCPAdVdV

double dFCPAdVdV

dFCPAdVdVdV

double dFCPAdVdVdV

dFdNtemp

double[] dFdNtemp

FCPA

double FCPA

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

gvector

double[][] gvector

hcpatot

double hcpatot

hessianInvers

org.ejml.simple.SimpleMatrix hessianInvers

hessianMatrix

org.ejml.simple.SimpleMatrix hessianMatrix

KlkMatrix

org.ejml.simple.SimpleMatrix KlkMatrix

Klkni

double[][][] Klkni

KlkTMatrix

org.ejml.simple.SimpleMatrix KlkTMatrix

KlkTTMatrix

org.ejml.simple.SimpleMatrix KlkTTMatrix

KlkTVMatrix

org.ejml.simple.SimpleMatrix KlkTVMatrix

KlkVMatrix

org.ejml.simple.SimpleMatrix KlkVMatrix

KlkVVMatrix

org.ejml.simple.SimpleMatrix KlkVVMatrix

KlkVVVMatrix

org.ejml.simple.SimpleMatrix KlkVVVMatrix

ksiMatrix

org.ejml.simple.SimpleMatrix ksiMatrix

lngi

double[] lngi

moleculeNumber

int[] moleculeNumber

mVector

org.ejml.simple.SimpleMatrix mVector

oldTotalNumberOfAccociationSites

int oldTotalNumberOfAccociationSites

QMatksiksiksi

org.ejml.simple.SimpleMatrix QMatksiksiksi

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

udotMatrix

org.ejml.simple.SimpleMatrix udotMatrix

udotTimesmiMatrix

org.ejml.simple.SimpleMatrix udotTimesmiMatrix

udotTimesmMatrix

org.ejml.simple.SimpleMatrix udotTimesmMatrix

uMatrix

org.ejml.simple.SimpleMatrix uMatrix

Class neqsim.thermo.phase.PhaseSrkCPAandersonMixing

class PhaseSrkCPAandersonMixing extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1002L

Class neqsim.thermo.phase.PhaseSrkCPAandersonReduced

class PhaseSrkCPAandersonReduced extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1003L

Class neqsim.thermo.phase.PhaseSrkCPABroydenImplicit

class PhaseSrkCPABroydenImplicit extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1001L

Class neqsim.thermo.phase.PhaseSrkCPAfullyImplicit

class PhaseSrkCPAfullyImplicit extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseSrkCPAfullyImplicitReduced

class PhaseSrkCPAfullyImplicitReduced extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1003L

Serialized Fields

callCount

long callCount

Number of molarVolume calls.

fallbackCount

long fallbackCount

Number of solver fallbacks to the base class.

jacobianEvals

long jacobianEvals

Number of Jacobian evaluations (full Newton, no Broyden).

lastFullSites

int lastFullSites

Number of full sites (last call).

lastNumTypes

int lastNumTypes

Number of site types (last call).

totalIters

long totalIters

Total iterations across all calls.

Class neqsim.thermo.phase.PhaseSrkCPAreduced

class PhaseSrkCPAreduced extends PhaseSrkCPAs implements Serializable

serialVersionUID:

1002L

Serialized Fields

broydenUpdates

long broydenUpdates

Number of Broyden rank-1 updates.

callCount

long callCount

Number of molarVolume calls.

fallbackCount

long fallbackCount

Number of solver fallbacks to the base class.

jacobianEvals

long jacobianEvals

Number of full Jacobian evaluations.

lastFullSites

int lastFullSites

Number of full sites (last call).

lastNumTypes

int lastNumTypes

Number of site types (last call).

totalIters

long totalIters

Total iterations across all calls.

Class neqsim.thermo.phase.PhaseSrkCPAs

class PhaseSrkCPAs extends PhaseSrkCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseSrkEos

class PhaseSrkEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseSrkEosvolcor

class PhaseSrkEosvolcor extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

C

double C

cachedCi

double[] cachedCi

cachedCij

double[][] cachedCij

cachedCiT

double[] cachedCiT

CT

double CT

Ctot

double Ctot

loc_C

double loc_C

Class neqsim.thermo.phase.PhaseSrkPenelouxEos

class PhaseSrkPenelouxEos extends PhaseSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseTSTEos

class PhaseTSTEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.phase.PhaseUMRCPA

class PhaseUMRCPA extends PhasePrEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

activeAccosComp

int[] activeAccosComp

assSiteNumber

int[] assSiteNumber

corr2Matrix

org.ejml.data.DMatrixRMaj corr2Matrix

corr3Matrix

org.ejml.data.DMatrixRMaj corr3Matrix

corr4Matrix

org.ejml.data.DMatrixRMaj corr4Matrix

cpamix

CPAMixingRulesInterface cpamix

cpaon

int cpaon

cpaSelect

CPAMixingRuleHandler cpaSelect

crossAccociationScheme

int[][][][] crossAccociationScheme

delta

double[][] delta

deltadT

double[][] deltadT

deltadTdT

double[][] deltadTdT

deltaNog

double[][] deltaNog

dFCPAdT

double dFCPAdT

dFCPAdTdT

double dFCPAdTdT

dFCPAdTdV

double dFCPAdTdV

dFCPAdV

double dFCPAdV

dFCPAdVdV

double dFCPAdVdV

dFCPAdVdVdV

double dFCPAdVdVdV

dFdNtemp

double[] dFdNtemp

FCPA

double FCPA

gcpa

double gcpa

gcpav

double gcpav

gcpavv

double gcpavv

gcpavvv

double gcpavvv

gvector

double[][] gvector

hcpatot

double hcpatot

hessianInvers

org.ejml.simple.SimpleMatrix hessianInvers

hessianMatrix

org.ejml.simple.SimpleMatrix hessianMatrix

KlkMatrix

org.ejml.simple.SimpleMatrix KlkMatrix

Klkni

double[][][] Klkni

KlkTMatrix

org.ejml.simple.SimpleMatrix KlkTMatrix

KlkTTMatrix

org.ejml.simple.SimpleMatrix KlkTTMatrix

KlkTVMatrix

org.ejml.simple.SimpleMatrix KlkTVMatrix

KlkVMatrix

org.ejml.simple.SimpleMatrix KlkVMatrix

KlkVVMatrix

org.ejml.simple.SimpleMatrix KlkVVMatrix

KlkVVVMatrix

org.ejml.simple.SimpleMatrix KlkVVVMatrix

ksiMatrix

org.ejml.simple.SimpleMatrix ksiMatrix

lngi

double[] lngi

moleculeNumber

int[] moleculeNumber

mVector

org.ejml.simple.SimpleMatrix mVector

oldTotalNumberOfAccociationSites

int oldTotalNumberOfAccociationSites

QMatksiksiksi

org.ejml.simple.SimpleMatrix QMatksiksiksi

selfAccociationScheme

int[][][] selfAccociationScheme

totalNumberOfAccociationSites

int totalNumberOfAccociationSites

udotMatrix

org.ejml.simple.SimpleMatrix udotMatrix

udotTimesmiMatrix

org.ejml.simple.SimpleMatrix udotTimesmiMatrix

udotTimesmMatrix

org.ejml.simple.SimpleMatrix udotTimesmMatrix

uMatrix

org.ejml.simple.SimpleMatrix uMatrix

Class neqsim.thermo.phase.PhaseVegaEos

class PhaseVegaEos extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

CpVega

double CpVega

CvVega

double CvVega

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnery

double internalEnery

IPHASE

int IPHASE

JTcoef

double JTcoef

kappa

double kappa

okVolume

boolean okVolume

W

double W

Class neqsim.thermo.phase.PhaseWaterIAPWS

class PhaseWaterIAPWS extends PhaseEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

cp

double cp

cv

double cv

enthalpy

double enthalpy

entropy

double entropy

gibbsEnergy

double gibbsEnergy

internalEnergy

double internalEnergy

soundSpeed

double soundSpeed

Class neqsim.thermo.phase.PhaseWax

class PhaseWax extends PhaseSolid implements Serializable

serialVersionUID:

1000L

Serialized Fields

waxComponentModelName

String waxComponentModelName

The selected wax component model name. Default is Pedersen (ComponentWax).

Package neqsim.thermo.system

Class neqsim.thermo.system.FluidBuilder

class FluidBuilder extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

components

List<FluidBuilder.ComponentEntry> components

Ordered component list (name, mole fraction).

eosType

FluidBuilder.EOSType eosType

EOS type to use.

mixingRuleName

String mixingRuleName

Mixing rule name (for string-based rules).

mixingRuleNumber

int mixingRuleNumber

Mixing rule number (for numeric rules like CPA).

multiPhaseCheck

boolean multiPhaseCheck

Whether to enable multi-phase check.

numberOfLumpedComponents

int numberOfLumpedComponents

Number of lumped components for characterization.

plusFraction

FluidBuilder.TBPEntry plusFraction

Plus fraction entry (optional).

pressureBara

double pressureBara

Pressure in bara.

solidPhaseCheck

boolean solidPhaseCheck

Whether to enable solid phase check.

tbpFractions

List<FluidBuilder.TBPEntry> tbpFractions

TBP fraction entries.

temperatureK

double temperatureK

Temperature in Kelvin.

Class neqsim.thermo.system.SystemAmmoniaEos

class SystemAmmoniaEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemBnsEos

class SystemBnsEos extends SystemEos implements Serializable

serialVersionUID:

1L

Serialized Fields

acfs

double[] acfs

associatedGas

boolean associatedGas

componentsInitialized

boolean componentsInitialized

cpCoeffs

double[][] cpCoeffs

mixingRuleDefined

boolean mixingRuleDefined

mws

double[] mws

omegaA

double[] omegaA

omegaB

double[] omegaB

pcs

double[] pcs

relativeDensity

double relativeDensity

tcs

double[] tcs

vshift

double[] vshift

vshiftField

double[] vshiftField

zfractions

double[] zfractions

Class neqsim.thermo.system.SystemBWRSEos

class SystemBWRSEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

TBPfractionCoefs

double[][] TBPfractionCoefs

Class neqsim.thermo.system.SystemCSPsrkEos

class SystemCSPsrkEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemDesmukhMather

class SystemDesmukhMather extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemDuanSun

class SystemDuanSun extends SystemEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

CapeOpenProperties11

String[] CapeOpenProperties11

Class neqsim.thermo.system.SystemElectrolyteCPA

class SystemElectrolyteCPA extends SystemFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemElectrolyteCPAAdvanced

class SystemElectrolyteCPAAdvanced extends SystemFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemElectrolyteCPAMM

class SystemElectrolyteCPAMM extends SystemSrkCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemElectrolyteCPAstatoil

class SystemElectrolyteCPAstatoil extends SystemFurstElectrolyteEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemEos

class SystemEos extends SystemThermo implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemEOSCGEos

class SystemEOSCGEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemFurstElectrolyteEos

class SystemFurstElectrolyteEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemFurstElectrolyteEosMod2004

class SystemFurstElectrolyteEosMod2004 extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemGERG2004Eos

class SystemGERG2004Eos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemGERG2008Eos

class SystemGERG2008Eos extends SystemEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

gergModelType

GERG2008Type gergModelType

The GERG-2008 model variant to use. Default is STANDARD.

Class neqsim.thermo.system.SystemGERGwaterEos

class SystemGERGwaterEos extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemGEWilson

class SystemGEWilson extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemIdealGas

class SystemIdealGas extends SystemThermo implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemKentEisenberg

class SystemKentEisenberg extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemLeachmanEos

class SystemLeachmanEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemNRTL

class SystemNRTL extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPCSAFT

class SystemPCSAFT extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPCSAFTa

class SystemPCSAFTa extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPitzer

class SystemPitzer extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrCPA

class SystemPrCPA extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrDanesh

class SystemPrDanesh extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrEos

class SystemPrEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrEos1978

class SystemPrEos1978 extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrEosDelft1998

class SystemPrEosDelft1998 extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrEosvolcor

class SystemPrEosvolcor extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrGassemEos

class SystemPrGassemEos extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrLeeKeslerEos

class SystemPrLeeKeslerEos extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPrMathiasCopeman

class SystemPrMathiasCopeman extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemPsrkEos

class SystemPsrkEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemRKEos

class SystemRKEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSAFTVRMie

class SystemSAFTVRMie extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSoreideWhitson

class SystemSoreideWhitson extends SystemPrEos1978 implements Serializable

serialVersionUID:

1000L

Serialized Fields

salinity

double salinity

Class neqsim.thermo.system.SystemSpanWagnerEos

class SystemSpanWagnerEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPA

class SystemSrkCPA extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAs

class SystemSrkCPAs extends SystemSrkCPA implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAstatoil

class SystemSrkCPAstatoil extends SystemSrkCPAs implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAstatoilAndersonMixing

class SystemSrkCPAstatoilAndersonMixing extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAstatoilAndersonReduced

class SystemSrkCPAstatoilAndersonReduced extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1003L

Class neqsim.thermo.system.SystemSrkCPAstatoilBroydenImplicit

class SystemSrkCPAstatoilBroydenImplicit extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAstatoilFullyImplicit

class SystemSrkCPAstatoilFullyImplicit extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkCPAstatoilFullyImplicitReduced

class SystemSrkCPAstatoilFullyImplicitReduced extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1003L

Class neqsim.thermo.system.SystemSrkCPAstatoilReduced

class SystemSrkCPAstatoilReduced extends SystemSrkCPAstatoil implements Serializable

serialVersionUID:

1002L

Class neqsim.thermo.system.SystemSrkEos

class SystemSrkEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkEosvolcor

class SystemSrkEosvolcor extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkMathiasCopeman

class SystemSrkMathiasCopeman extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkPenelouxEos

class SystemSrkPenelouxEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkSchwartzentruberEos

class SystemSrkSchwartzentruberEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkTwuCoonEos

class SystemSrkTwuCoonEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkTwuCoonParamEos

class SystemSrkTwuCoonParamEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemSrkTwuCoonStatoilEos

class SystemSrkTwuCoonStatoilEos extends SystemSrkEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemThermo

class SystemThermo extends Object implements Serializable

serialVersionUID:

1000L

Serialization Methods

readObject

public SystemInterface readObject(int ID)

readObject.

Parameters:

ID - a int

Serialized Fields

a

int a

allowPhaseShift

boolean allowPhaseShift

attractiveTermNumber

int attractiveTermNumber

beta

double[] beta

Fraction of moles_in_phase / moles_in_system. Cached.

CapeOpenProperties10

String[] CapeOpenProperties10

CapeOpenProperties11

String[] CapeOpenProperties11

characterization

Characterise characterization

checkStability

boolean checkStability

chemicalReactionOperations

ChemicalReactionOperations chemicalReactionOperations

chemicalSystem

boolean chemicalSystem

componentNames

ArrayList<String> componentNames

componentNameTag

String componentNameTag

criticalPressure

double criticalPressure

Critical pressure in bara.

criticalTemperature

double criticalTemperature

Critical temperature in Kelvin.

enhancedMultiPhaseCheck

boolean enhancedMultiPhaseCheck

fluidInfo

String fluidInfo

fluidName

String fluidName

forcePhaseTypes

boolean forcePhaseTypes

hydrateCheck

boolean hydrateCheck

implementedCompositionDeriativesofFugacity

boolean implementedCompositionDeriativesofFugacity

implementedPressureDeriativesofFugacity

boolean implementedPressureDeriativesofFugacity

implementedTemperatureDeriativesofFugacity

boolean implementedTemperatureDeriativesofFugacity

interfaceProp

InterphasePropertiesInterface interfaceProp

isInitialized

boolean isInitialized

maxNumberOfPhases

int maxNumberOfPhases

Maximum allowed number of phases.

mixingRuleType

MixingRuleTypeInterface mixingRuleType

modelName

String modelName

multiPhaseCheck

boolean multiPhaseCheck

multiphaseWaxCheck

boolean multiphaseWaxCheck

numberOfComponents

int numberOfComponents

numberOfPhases

int numberOfPhases

Number of phases in use/existing.

numericDerivatives

boolean numericDerivatives

phaseArray

PhaseInterface[] phaseArray

Array containing all phases of System. NB! Phases are reorered according to density, use phaseIndex to keep track of the creation order.

phaseIndex

int[] phaseIndex

Array of indexes to phaseArray keeping track of the creation order of the phases where 0 is the first created phase and the lowest number is the phase created last.

phaseType

PhaseType[] phaseType

resultTable

String[][] resultTable

solidPhaseCheck

boolean solidPhaseCheck

standard

StandardInterface standard

totalNumberOfMoles

double totalNumberOfMoles

useTVasIndependentVariables

boolean useTVasIndependentVariables

waxCharacterisation

WaxCharacterise waxCharacterisation

waxModelTypeName

String waxModelTypeName

Class neqsim.thermo.system.SystemTSTEos

class SystemTSTEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Serialized Fields

TBPfractionCoefs

double[][] TBPfractionCoefs

Class neqsim.thermo.system.SystemUMRCPAEoS

class SystemUMRCPAEoS extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemUMRPRUEos

class SystemUMRPRUEos extends SystemPrEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemUMRPRUMCEos

class SystemUMRPRUMCEos extends SystemUMRPRUEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemUMRPRUMCEosNew

class SystemUMRPRUMCEosNew extends SystemUMRPRUMCEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemUNIFAC

class SystemUNIFAC extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemUNIFACpsrk

class SystemUNIFACpsrk extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemVegaEos

class SystemVegaEos extends SystemEos implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.system.SystemWaterIF97

class SystemWaterIF97 extends SystemEos implements Serializable

serialVersionUID:

1000L

Package neqsim.thermo.util.amines

Class neqsim.thermo.util.amines.AmineHeatOfAbsorption

class AmineHeatOfAbsorption extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

amineConcentration

double amineConcentration

amineType

AmineHeatOfAbsorption.AmineType amineType

co2Loading

double co2Loading

temperature

double temperature

Class neqsim.thermo.util.amines.AmineSystem

class AmineSystem extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

amineMolFraction

double amineMolFraction

amineType

AmineSystem.AmineType amineType

co2MolFraction

double co2MolFraction

h2sMolFraction

double h2sMolFraction

hasH2S

boolean hasH2S

heatCalc

AmineHeatOfAbsorption heatCalc

initialized

boolean initialized

piperazineMolFraction

double piperazineMolFraction

pressure

double pressure

system

SystemInterface system

temperature

double temperature

waterMolFraction

double waterMolFraction

Package neqsim.thermo.util.constants

Class neqsim.thermo.util.constants.FurstElectrolyteConstants

class FurstElectrolyteConstants extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.util.constants.IonParametersAdvanced

class IonParametersAdvanced extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.thermo.util.constants.IonParametersAdvanced.AdvancedIonData

class AdvancedIonData extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

charge

int charge

Ionic charge (signed: +1, -1, +2, -2, etc.).

dGhydration

double dGhydration

Hydration Gibbs energy [kJ/mol] (Marcus 1988).

rBorn0

double rBorn0

Born radius at T_ref [Angstrom].

rBornT

double rBornT

T-coefficient of Born radius [Angstrom/K].

sigma

double sigma

Hard-sphere diameter [Angstrom].

w0

double w0

Ion-water interaction energy at T_ref [J*m3/mol2].

wT

double wT

Linear T-coefficient of W [J*m3/(mol2*K)].

wTT

double wTT

Quadratic T-coefficient of W [J*m3/(mol2*K2)].

Class neqsim.thermo.util.constants.IonParametersAdvanced.IonPairData

class IonPairData extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dH

double dH

Enthalpy of ion-pair formation [J/mol].

dIP

double dIP

Contact distance for ion pairing [Angstrom].

k0

double k0

Ion-pair formation constant at T_ref [L/mol].

Package neqsim.thermo.util.derivatives

Class neqsim.thermo.util.derivatives.DifferentiableFlash

class DifferentiableFlash extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

cachedFlashGradients

FlashGradients cachedFlashGradients

Cached flash gradients.

cachedFugacityJacobians

FugacityJacobian[] cachedFugacityJacobians

Cached fugacity Jacobians for each phase.

gradientsComputed

boolean gradientsComputed

Whether gradients have been computed.

system

SystemInterface system

The thermodynamic system at equilibrium.

Class neqsim.thermo.util.derivatives.FlashGradients

class FlashGradients extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

Current vapor phase fraction (β).

componentNames

String[] componentNames

Component names.

dBetadP

double dBetadP

Derivative of vapor fraction w.r.t. pressure: dβ/dP [1/bar].

dBetadT

double dBetadT

Derivative of vapor fraction w.r.t. temperature: dβ/dT [1/K].

dBetadz

double[] dBetadz

Derivatives of vapor fraction w.r.t. feed composition: dβ/dz_i.

dKdP

double[] dKdP

Derivatives of K-values w.r.t. pressure: dK_i/dP [1/bar].

dKdT

double[] dKdT

Derivatives of K-values w.r.t. temperature: dK_i/dT [1/K].

dKdz

double[][] dKdz

Derivatives of K-values w.r.t. feed composition: dK_i/dz_j.

errorMessage

String errorMessage

Error message if gradient computation failed.

kValues

double[] kValues

Current K-values (y_i/x_i).

numberOfComponents

int numberOfComponents

Number of components.

numberOfPhases

int numberOfPhases

Number of phases.

valid

boolean valid

Whether gradients were successfully computed.

Class neqsim.thermo.util.derivatives.FugacityJacobian

class FugacityJacobian extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentNames

String[] componentNames

Component names.

dlnPhidn

double[][] dlnPhidn

Derivatives w.r.t. moles: ∂(ln φ_i)/∂n_j [1/mol]. Matrix is [component][d/dn_component].

dlnPhidP

double[] dlnPhidP

Derivatives w.r.t. pressure: ∂(ln φ_i)/∂P [1/bar].

dlnPhidT

double[] dlnPhidT

Derivatives w.r.t. temperature: ∂(ln φ_i)/∂T [1/K].

lnPhi

double[] lnPhi

Log fugacity coefficients ln(φ_i).

numberOfComponents

int numberOfComponents

Number of components.

phaseIndex

int phaseIndex

Phase index (0 = liquid-like, 1 = vapor-like).

phaseType

String phaseType

Phase type description.

Class neqsim.thermo.util.derivatives.PropertyGradient

class PropertyGradient extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

componentNames

String[] componentNames

Component names corresponding to composition derivatives.

dP

double dP

Derivative with respect to pressure [property_unit/bar].

dT

double dT

Derivative with respect to temperature [property_unit/K].

dz

double[] dz

Derivatives with respect to composition (mole fractions) [property_unit/mol_frac].

propertyName

String propertyName

Name of the property.

unit

String unit

Unit of the property.

value

double value

Current value of the property.

Package neqsim.thermo.util.readwrite

Class neqsim.thermo.util.readwrite.TablePrinter

class TablePrinter extends Object implements Serializable

serialVersionUID:

1000L

Package neqsim.thermodynamicoperations

Class neqsim.thermodynamicoperations.BaseOperation

class BaseOperation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

systemThermo

SystemInterface systemThermo

Class neqsim.thermodynamicoperations.ThermodynamicOperations

class ThermodynamicOperations extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

fileName

String fileName

operation

OperationInterface operation

resultTable

String[][] resultTable

runAsThread

boolean runAsThread

system

SystemInterface system

writeFile

boolean writeFile

Package neqsim.thermodynamicoperations.chemicalequilibrium

Class neqsim.thermodynamicoperations.chemicalequilibrium.ChemicalEquilibrium

class ChemicalEquilibrium extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

system

SystemInterface system

Package neqsim.thermodynamicoperations.flashops

Class neqsim.thermodynamicoperations.flashops.CalcIonicComposition

class CalcIonicComposition extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

logger

org.apache.logging.log4j.Logger logger

phaseNumber

int phaseNumber

resultTable

String[][] resultTable

Class neqsim.thermodynamicoperations.flashops.CriticalPointFlash

class CriticalPointFlash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

fmatrix

org.ejml.simple.SimpleMatrix fmatrix

HeidemannMmatrix

org.ejml.simple.SimpleMatrix HeidemannMmatrix

Mmatrix

org.ejml.simple.SimpleMatrix Mmatrix

Nmatrix

org.ejml.simple.SimpleMatrix Nmatrix

numberOfComponents

int numberOfComponents

Tc0

double Tc0

Vc0

double Vc0

Class neqsim.thermodynamicoperations.flashops.dTPflash

class dTPflash extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

flashComp

String[] flashComp

Class neqsim.thermodynamicoperations.flashops.Flash

class Flash extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

deltalnK

double[] deltalnK

deviation

double deviation

findLowestGibbsPhaseIsChecked

boolean findLowestGibbsPhaseIsChecked

g0

double g0

g1

double g1

gibbsEnergy

double gibbsEnergy

gibbsEnergyOld

double gibbsEnergyOld

i

int i

iterations

int iterations

j

int j

Kold

double Kold

lastStabilityAnalysisFailed

boolean lastStabilityAnalysisFailed

lastStabilityAnalysisFailureMessage

String lastStabilityAnalysisFailureMessage

lastStabilityOutcome

String lastStabilityOutcome

lastTangentPlaneDistances

double[] lastTangentPlaneDistances

lnK

double[] lnK

lnOldK

double[] lnOldK

lnOldOldK

double[] lnOldOldK

lnOldOldOldK

double[] lnOldOldOldK

lowestGibbsEnergyPhase

int lowestGibbsEnergyPhase

maxNumberOfIterations

int maxNumberOfIterations

minGibsLogFugCoef

double[] minGibsLogFugCoef

minGibsPhaseLogZ

double[] minGibsPhaseLogZ

minimumGibbsEnergySystem

SystemInterface minimumGibbsEnergySystem

oldDeltalnK

double[] oldDeltalnK

oldoldDeltalnK

double[] oldoldDeltalnK

secondOrderSolver

SysNewtonRhapsonTPflash secondOrderSolver

solidCheck

boolean solidCheck

Set true to do solid phase check and calculations

stabilityCheck

boolean stabilityCheck

system

SystemInterface system

tm

double[] tm

tmLimit

double tmLimit

Class neqsim.thermodynamicoperations.flashops.ImprovedVUflashQfunc

class ImprovedVUflashQfunc extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

Uspec

double Uspec

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.OptimizedVUflash

class OptimizedVUflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

isWellBehaved

boolean isWellBehaved

lastPressure

double lastPressure

lastTemperature

double lastTemperature

tpFlash

Flash tpFlash

Uspec

double Uspec

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.PHflash

class PHflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

tpFlash

Flash tpFlash

type

int type

Class neqsim.thermodynamicoperations.flashops.PHflashGERG2008

class PHflashGERG2008 extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_GERG2008

double cP_GERG2008

enthalpy_GERG2008

double enthalpy_GERG2008

Hspec

double Hspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PHflashLeachman

class PHflashLeachman extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_Leachman

double cP_Leachman

enthalpy_Leachman

double enthalpy_Leachman

Hspec

double Hspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PHflashSingleComp

class PHflashSingleComp extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

Class neqsim.thermodynamicoperations.flashops.PHflashVega

class PHflashVega extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_Vega

double cP_Vega

enthalpy_Vega

double enthalpy_Vega

Hspec

double Hspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PHsolidFlash

class PHsolidFlash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

enthalpyspec

double enthalpyspec

refluxPhase

int refluxPhase

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PSFlash

class PSFlash extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Sspec

double Sspec

tpFlash

Flash tpFlash

type

int type

Class neqsim.thermodynamicoperations.flashops.PSFlashGERG2008

class PSFlashGERG2008 extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_GERG2008

double cP_GERG2008

entropy_GERG2008

double entropy_GERG2008

Sspec

double Sspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PSFlashLeachman

class PSFlashLeachman extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_Leachman

double cP_Leachman

entropy_Leachman

double entropy_Leachman

Sspec

double Sspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PSflashSingleComp

class PSflashSingleComp extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Sspec

double Sspec

Class neqsim.thermodynamicoperations.flashops.PSFlashVega

class PSFlashVega extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

cP_Vega

double cP_Vega

entropy_Vega

double entropy_Vega

Sspec

double Sspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.PUflash

class PUflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

Uspec

double Uspec

Class neqsim.thermodynamicoperations.flashops.PVFflash

class PVFflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxIterations

int maxIterations

Maximum number of iterations for the Newton solver.

tolerance

double tolerance

Convergence tolerance for vapor fraction.

tpFlash

Flash tpFlash

Internal TP flash for intermediate calculations.

vaporFractionSpec

double vaporFractionSpec

Target molar vapor fraction (0.0 to 1.0).

Class neqsim.thermodynamicoperations.flashops.PVflash

class PVflash extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

TP flash calculator.

Vspec

double Vspec

Specified volume in m³.

Class neqsim.thermodynamicoperations.flashops.PVrefluxflash

class PVrefluxflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

refluxPhase

int refluxPhase

refluxSpec

double refluxSpec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.QfuncFlash

class QfuncFlash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

tpFlash

Flash tpFlash

type

int type

Class neqsim.thermodynamicoperations.flashops.RachfordRice

class RachfordRice extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double[] beta

c

double[] c

d

double[] d

Class neqsim.thermodynamicoperations.flashops.SaturateWithWater

class SaturateWithWater extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.SolidFlash

class SolidFlash extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

dQdbeta

double[] dQdbeta

E

double[] E

hasRemovedPhase

boolean hasRemovedPhase

multiPhaseTest

boolean multiPhaseTest

Q

double Q

Qmatrix

double[][] Qmatrix

secondTime

boolean secondTime

solidComponent

int solidComponent

Class neqsim.thermodynamicoperations.flashops.SolidFlash1

class SolidFlash1 extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

dQdbeta

double[] dQdbeta

E

double[] E

FluidPhaseActiveDescriptors

int[] FluidPhaseActiveDescriptors

multiPhaseTest

boolean multiPhaseTest

Q

double Q

Qmatrix

double[][] Qmatrix

solidIndex

int solidIndex

solidsNumber

int solidsNumber

totalSolidFrac

double totalSolidFrac

Class neqsim.thermodynamicoperations.flashops.SolidFlash12

class SolidFlash12 extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

dQdbeta

double[] dQdbeta

E

double[] E

multiPhaseTest

boolean multiPhaseTest

Q

double Q

Qmatrix

double[][] Qmatrix

solidIndex

int solidIndex

solidsNumber

int solidsNumber

Class neqsim.thermodynamicoperations.flashops.SysNewtonRhapsonPHflash

class SysNewtonRhapsonPHflash extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

avscp

double avscp

beta

double beta

dPdT

double dPdT

dPmax

double dPmax

ds

double ds

dTmax

double dTmax

dVdT

double dVdT

etterCP

boolean etterCP

etterCP2

boolean etterCP2

fvec

Jama.Matrix fvec

gPvec

Jama.Matrix gPvec

gTvec

Jama.Matrix gTvec

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

Jac

Jama.Matrix Jac

neq

int neq

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

solver

NewtonRhapson solver

speceq

int speceq

specVar

double specVar

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

type

int type

u

Jama.Matrix u

uold

Jama.Matrix uold

xcoef

Jama.Matrix xcoef

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Class neqsim.thermodynamicoperations.flashops.SysNewtonRhapsonTPflash

class SysNewtonRhapsonTPflash extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

dxVector

org.ejml.data.DMatrixRMaj dxVector

Newton step vector.

fvecVector

org.ejml.data.DMatrixRMaj fvecVector

Residual vector (gradient of Q).

iter

int iter

Newton iteration counter.

jacMatrix

org.ejml.data.DMatrixRMaj jacMatrix

Jacobian matrix (Hessian of Q).

jacWork

org.ejml.data.DMatrixRMaj jacWork

Work copy of Jacobian for LU decomposition.

neq

int neq

Number of equations (= number of components).

numberOfComponents

int numberOfComponents

Number of components in the system.

system

SystemInterface system

Reference to the thermodynamic system being solved.

uVector

double[] uVector

u-variable array: u[i] = beta * y[i].

z

double[] z

Cached feed compositions (constant during flash).

Class neqsim.thermodynamicoperations.flashops.SysNewtonRhapsonTPflashNew

class SysNewtonRhapsonTPflashNew extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

avscp

double avscp

beta

double beta

dPmax

double dPmax

ds

double ds

dTmax

double dTmax

etterCP

boolean etterCP

etterCP2

boolean etterCP2

fvec

Jama.Matrix fvec

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

Jac

Jama.Matrix Jac

neq

int neq

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

solver

NewtonRhapson solver

speceq

int speceq

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

u

Jama.Matrix u

uold

Jama.Matrix uold

xcoef

Jama.Matrix xcoef

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Class neqsim.thermodynamicoperations.flashops.THflash

class THflash extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

Specified enthalpy in J.

tpFlash

Flash tpFlash

TP flash calculator.

Class neqsim.thermodynamicoperations.flashops.TPflash

class TPflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

clonedSystem

SystemInterface clonedSystem

presdiff

double presdiff

rachfordRice

RachfordRice rachfordRice

Class neqsim.thermodynamicoperations.flashops.TPflashSAFT

class TPflashSAFT extends TPflash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.TPgradientFlash

class TPgradientFlash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

deltaHeight

double deltaHeight

deltaT

double deltaT

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

height

double height

Jac

Jama.Matrix Jac

localSystem

SystemInterface localSystem

system

SystemInterface system

temperature

double temperature

tempSystem

SystemInterface tempSystem

Class neqsim.thermodynamicoperations.flashops.TPHydrateFlash

class TPHydrateFlash extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

gasHydrateOnlyMode

boolean gasHydrateOnlyMode

Flag to enable gas-hydrate only mode. When true, the algorithm will try to achieve gas-hydrate equilibrium without an aqueous phase if all water can be consumed by hydrate.

hydrateFormed

boolean hydrateFormed

Flag to indicate if hydrate has formed.

hydrateFraction

double hydrateFraction

The calculated hydrate fraction.

stableHydrateStructure

int stableHydrateStructure

The stable hydrate structure (1 or 2).

Class neqsim.thermodynamicoperations.flashops.TPmultiflash

class TPmultiflash extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

aqueousPhaseSeedAttempted

boolean aqueousPhaseSeedAttempted

checkOneRemove

boolean checkOneRemove

doStabilityAnalysis

boolean doStabilityAnalysis

dQdbeta

double[][] dQdbeta

Erow

double[] Erow

multiPhaseTest

boolean multiPhaseTest

multTerm

double[] multTerm

multTerm2

double[] multTerm2

postFlashStabilityChecked

boolean postFlashStabilityChecked

Q

double Q

Qmatrix

double[][] Qmatrix

removePhase

boolean removePhase

rerunDepth

int rerunDepth

secondTime

boolean secondTime

Class neqsim.thermodynamicoperations.flashops.TPmultiflashWAX

class TPmultiflashWAX extends TPflash implements Serializable

serialVersionUID:

1000L

Serialized Fields

doStabilityAnalysis

boolean doStabilityAnalysis

dQdbeta

double[] dQdbeta

E

double[] E

multiPhaseTest

boolean multiPhaseTest

Q

double Q

Qmatrix

double[][] Qmatrix

Class neqsim.thermodynamicoperations.flashops.TSFlash

class TSFlash extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Sspec

double Sspec

tpFlash

Flash tpFlash

Class neqsim.thermodynamicoperations.flashops.TUflash

class TUflash extends QfuncFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

TP flash calculator.

Uspec

double Uspec

Specified internal energy in J.

Class neqsim.thermodynamicoperations.flashops.TVflash

class TVflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

TPflash operation used for phase equilibrium.

Vspec

double Vspec

Specified volume in cm³.

Class neqsim.thermodynamicoperations.flashops.TVfractionFlash

class TVfractionFlash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

Flag indicating if the flash calculation converged successfully.

oldPres

double oldPres

reportedUncountableState

boolean reportedUncountableState

tpFlash

Flash tpFlash

Vfractionspec

double Vfractionspec

Class neqsim.thermodynamicoperations.flashops.VHflash

class VHflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

pHFlash

Flash pHFlash

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.VHflashQfunc

class VHflashQfunc extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Hspec

double Hspec

tpFlash

Flash tpFlash

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.VSflash

class VSflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Sspec

double Sspec

tpFlash

Flash tpFlash

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.VUflash

class VUflash extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

pHFlash

Flash pHFlash

Uspec

double Uspec

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.VUflashQfunc

class VUflashQfunc extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

tpFlash

Flash tpFlash

Uspec

double Uspec

Vspec

double Vspec

Class neqsim.thermodynamicoperations.flashops.VUflashSingleComp

class VUflashSingleComp extends Flash implements Serializable

serialVersionUID:

1000L

Serialized Fields

Uspec

double Uspec

Vspec

double Vspec

Package neqsim.thermodynamicoperations.flashops.reactiveflash

Class neqsim.thermodynamicoperations.flashops.reactiveflash.DIISAccelerator

class DIISAccelerator extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

count

int count

Number of entries currently stored (up to maxHistory).

iterateHistory

double[][] iterateHistory

Circular buffer of iterate vectors.

maxHistory

int maxHistory

Maximum number of stored iterate-residual pairs.

nextSlot

int nextSlot

Index of the next slot to write in the circular buffer.

residualHistory

double[][] residualHistory

Circular buffer of residual vectors.

vectorLength

int vectorLength

Length of each iterate and residual vector.

Class neqsim.thermodynamicoperations.flashops.reactiveflash.FormulaMatrix

class FormulaMatrix extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

A

double[][] A

The formula matrix A[NE][NC]. A[k][i] = count of element k in component i.

componentNames

String[] componentNames

Component names in order (columns of A).

elementNames

String[] elementNames

Element names in order (rows of A).

hasIonicSpecies

boolean hasIonicSpecies

Whether the system contains ionic species (at least one component with nonzero charge).

ionicCharges

double[] ionicCharges

Ionic charges for each component (0 for non-ionic).

numComponents

int numComponents

Number of components (columns).

numElements

int numElements

Number of elements (rows), including charge balance row if ionic species present.

Class neqsim.thermodynamicoperations.flashops.reactiveflash.ModifiedRANDSolver

class ModifiedRANDSolver extends Object implements Serializable

serialVersionUID:

1005L

Serialized Fields

A

double[][] A

Formula matrix A[ne][nc].

b

double[] b

Element balance vector (total atoms).

beta

double[] beta

Phase fractions: beta[j].

converged

boolean converged

Whether converged.

diisStepsAccepted

int diisStepsAccepted

Count of accepted DIIS steps.

finalResidual

double finalResidual

Final residual.

formulaMatrix

FormulaMatrix formulaMatrix

The formula matrix.

g0

double[] g0

Standard chemical potential: g0[i].

hasIonicSpecies

boolean hasIonicSpecies

Whether this system contains ionic species.

isElectrolyteEOS

boolean isElectrolyteEOS

Whether the system uses an electrolyte EOS (Born/MSA/CPA contributions).

isGasPhase

boolean[] isGasPhase

Flags: true if phase j is a gas phase (ions cannot exist in gas).

isIon

boolean[] isIon

Flags: true if component i is ionic (charge != 0).

iterationsUsed

int iterationsUsed

Number of iterations used.

lambda

double[] lambda

Lagrange multipliers for element balance constraints.

lnPhi

double[][] lnPhi

Log fugacity coefficients: lnPhi[phase][component].

lnPhiRef

double[] lnPhiRef

Reference-state ln(phi) correction for ions with electrolyte EOS.

n

double[][] n

Moles per phase: n[phase][component].

nc

int nc

Number of components.

ne

int ne

Number of elements.

np

int np

Number of phases.

nPhase

double[] nPhase

Moles per phase total: nPhase[j] = sum_i n[j][i].

system

SystemInterface system

The thermodynamic system.

totalMoles

double totalMoles

Total moles across all phases.

useDIIS

boolean useDIIS

Whether to use DIIS acceleration (default true).

x

double[][] x

Mole fractions: x[phase][component].

Class neqsim.thermodynamicoperations.flashops.reactiveflash.ReactiveMultiphasePHflash

class ReactiveMultiphasePHflash extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

Whether the flash converged.

enthalpySpec

double enthalpySpec

Specified enthalpy (J).

entropySpec

double entropySpec

Specified entropy (J/K). If non-zero, overrides enthalpy mode.

equilibriumTemperature

double equilibriumTemperature

The equilibrium temperature found.

outerIterations

int outerIterations

Total outer iterations used.

system

SystemInterface system

The thermodynamic system.

totalInnerIterations

int totalInnerIterations

Total inner (RAND solver) iterations across all outer steps.

useChemicalReactionInit

boolean useChemicalReactionInit

Whether to use chemicalReactionInit in inner TP flash.

useDIIS

boolean useDIIS

Whether to use DIIS in inner TP flash.

useEntropySpec

boolean useEntropySpec

Whether to use entropy specification instead of enthalpy.

userMaxPhases

int userMaxPhases

User-specified maximum number of phases for inner flash.

Class neqsim.thermodynamicoperations.flashops.reactiveflash.ReactiveMultiphaseTPflash

class ReactiveMultiphaseTPflash extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

converged

boolean converged

Whether the flash converged.

equilibriumTotalMoles

double equilibriumTotalMoles

Equilibrium total moles (may differ from 1 when reactions change total moles).

finalGibbsEnergy

double finalGibbsEnergy

Final Gibbs energy.

formulaMatrix

FormulaMatrix formulaMatrix

The formula matrix (element-component mapping).

numberOfReactions

int numberOfReactions

Number of independent reactions found.

system

SystemInterface system

The thermodynamic system.

totalIterations

int totalIterations

Total iterations used.

useChemicalReactionInit

boolean useChemicalReactionInit

Whether to auto-discover reactions via chemicalReactionInit.

useDIIS

boolean useDIIS

Whether to use DIIS acceleration in the RAND solver.

userMaxPhases

int userMaxPhases

User-specified maximum number of phases. When positive, overrides system.getMaxNumberOfPhases() (which may be reset by init calls). A value of -1 means use the system's value.

Class neqsim.thermodynamicoperations.flashops.reactiveflash.ReactiveStabilityAnalysis

class ReactiveStabilityAnalysis extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

d

double[] d

Reference chemical potentials d[i] = ln(z_i) + ln(phi_i) from equilibrated feed.

formulaMatrix

FormulaMatrix formulaMatrix

The formula matrix for chemical reactions.

nc

int nc

Number of components.

system

SystemInterface system

The thermodynamic system.

tpdValues

List<Double> tpdValues

TPD values for each trial.

unstableTrialCompositions

List<double[]> unstableTrialCompositions

Trial compositions that were found unstable.

Package neqsim.thermodynamicoperations.flashops.saturationops

Class neqsim.thermodynamicoperations.flashops.saturationops.AddIonToScaleSaturation

class AddIonToScaleSaturation extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

nameOfIonToBeAdded

String nameOfIonToBeAdded

phaseNumber

int phaseNumber

resultTable

String[][] resultTable

saltName

String saltName

scaleSaltName

String scaleSaltName

Class neqsim.thermodynamicoperations.flashops.saturationops.AsphalteneOnsetPressureFlash

class AsphalteneOnsetPressureFlash extends ConstantDutyFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

minPressure

double minPressure

Minimum pressure to search to (bara).

onsetFound

boolean onsetFound

Flag indicating if onset was found.

onsetPressure

double onsetPressure

The calculated onset pressure (bara).

precipitatedFraction

double precipitatedFraction

Amount of asphaltene precipitated at onset (mole fraction).

pressureStep

double pressureStep

Initial pressure step for search (bara).

startPressure

double startPressure

Starting pressure for search (bara).

Class neqsim.thermodynamicoperations.flashops.saturationops.AsphalteneOnsetTemperatureFlash

class AsphalteneOnsetTemperatureFlash extends ConstantDutyFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxTemperature

double maxTemperature

Maximum temperature to search to (K).

minTemperature

double minTemperature

Minimum temperature to search to (K).

onsetFound

boolean onsetFound

Flag indicating if onset was found.

onsetTemperature

double onsetTemperature

The calculated onset temperature (K).

searchDecreasing

boolean searchDecreasing

Search direction: true = decreasing temp, false = increasing temp.

startTemperature

double startTemperature

Starting temperature for search (K).

temperatureStep

double temperatureStep

Initial temperature step for search (K).

Class neqsim.thermodynamicoperations.flashops.saturationops.BubblePointPressureFlash

class BubblePointPressureFlash extends ConstantDutyPressureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.BubblePointPressureFlashDer

class BubblePointPressureFlashDer extends ConstantDutyPressureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.BubblePointTemperatureFlash

class BubblePointTemperatureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.BubblePointTemperatureNoDer

class BubblePointTemperatureNoDer extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.CalcSaltSatauration

class CalcSaltSatauration extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

saltName

String saltName

Class neqsim.thermodynamicoperations.flashops.saturationops.CapillaryDewPointFlash

class CapillaryDewPointFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

bulkDewPointTemperature

double bulkDewPointTemperature

Bulk (flat-surface) dew point temperature in K (stored for reporting).

capillaryPressure

double capillaryPressure

Computed capillary pressure in Pa.

contactAngle

double contactAngle

Contact angle in radians (0 = perfect wetting).

poreRadius

double poreRadius

Effective capillary (pore) radius in meters.

surfaceTension

double surfaceTension

Computed surface tension in N/m.

Class neqsim.thermodynamicoperations.flashops.saturationops.CheckScalePotential

class CheckScalePotential extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

phaseNumber

int phaseNumber

resultTable

String[][] resultTable

saltName

String saltName

Class neqsim.thermodynamicoperations.flashops.saturationops.ConstantDutyFlash

class ConstantDutyFlash extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

deltalnK

double[] deltalnK

deviation

double deviation

g0

double g0

g1

double g1

gibbsEnergy

double gibbsEnergy

gibbsEnergyOld

double gibbsEnergyOld

i

int i

iterations

int iterations

j

int j

Kold

double Kold

lnK

double[] lnK

lnOldK

double[] lnOldK

lnOldOldK

double[] lnOldOldK

lowestGibbsEnergyPhase

int lowestGibbsEnergyPhase

maxNumberOfIterations

int maxNumberOfIterations

nummer

int nummer

oldDeltalnK

double[] oldDeltalnK

superCritical

boolean superCritical

system

SystemInterface system

tm

double[] tm

Class neqsim.thermodynamicoperations.flashops.saturationops.ConstantDutyPressureFlash

class ConstantDutyPressureFlash extends ConstantDutyFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.ConstantDutyTemperatureFlash

class ConstantDutyTemperatureFlash extends ConstantDutyFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.CricondebarFlash

class CricondebarFlash extends ConstantDutyPressureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

fvec

Jama.Matrix fvec

Jac

Jama.Matrix Jac

Class neqsim.thermodynamicoperations.flashops.saturationops.CricondenBarTemp

class CricondenBarTemp extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

avscp

double avscp

beta

double beta

dPmax

double dPmax

ds

double ds

dTmax

double dTmax

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

Jac

Jama.Matrix Jac

neq

int neq

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

speceq

int speceq

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

u

Jama.Matrix u

uold

Jama.Matrix uold

xcoef

Jama.Matrix xcoef

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Class neqsim.thermodynamicoperations.flashops.saturationops.CricondenBarTemp1

class CricondenBarTemp1 extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

avscp

double avscp

beta

double beta

dPmax

double dPmax

ds

double ds

dTmax

double dTmax

dx

Jama.Matrix dx

fvec

Jama.Matrix fvec

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

Jac

Jama.Matrix Jac

neq

int neq

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

speceq

int speceq

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

u

Jama.Matrix u

uold

Jama.Matrix uold

xcoef

Jama.Matrix xcoef

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Class neqsim.thermodynamicoperations.flashops.saturationops.DewPointPressureFlash

class DewPointPressureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.DewPointTemperatureFlash

class DewPointTemperatureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.DewPointTemperatureFlashDer

class DewPointTemperatureFlashDer extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.FreezeOut

class FreezeOut extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

FCompNames

String[] FCompNames

FCompTemp

double[] FCompTemp

noFreezeFlash

boolean noFreezeFlash

Class neqsim.thermodynamicoperations.flashops.saturationops.FreezingPointTemperatureFlash

class FreezingPointTemperatureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

Niterations

int Niterations

noFreezeFlash

boolean noFreezeFlash

phaseName

String phaseName

Class neqsim.thermodynamicoperations.flashops.saturationops.FreezingPointTemperatureFlashOld

class FreezingPointTemperatureFlashOld extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.FreezingPointTemperatureFlashTR

class FreezingPointTemperatureFlashTR extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

CCequation

boolean CCequation

compnr

int compnr

FCompNames

String[] FCompNames

FCompTemp

double[] FCompTemp

name

String name

Niterations

int Niterations

noFreezeFlash

boolean noFreezeFlash

Class neqsim.thermodynamicoperations.flashops.saturationops.FugTestConstP

class FugTestConstP extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

compName

String compName

compNameGiven

boolean compNameGiven

compNumber

int compNumber

pres

double pres

temp

double temp

testOps

ThermodynamicOperations testOps

testOps2

ThermodynamicOperations testOps2

testSystem

SystemInterface testSystem

testSystem2

SystemInterface testSystem2

Class neqsim.thermodynamicoperations.flashops.saturationops.HCdewPointPressureFlash

class HCdewPointPressureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.HydrateEquilibriumLine

class HydrateEquilibriumLine extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

hydratePoints

double[][] hydratePoints

maxPressure

double maxPressure

minPressure

double minPressure

numberOfPoints

int numberOfPoints

Class neqsim.thermodynamicoperations.flashops.saturationops.HydrateFormationPressureFlash

class HydrateFormationPressureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.HydrateFormationTemperatureFlash

class HydrateFormationTemperatureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.HydrateInhibitorConcentrationFlash

class HydrateInhibitorConcentrationFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

hydT

double hydT

inhibitor

String inhibitor

Class neqsim.thermodynamicoperations.flashops.saturationops.HydrateInhibitorwtFlash

class HydrateInhibitorwtFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

inhibitor

String inhibitor

wtfrac

double wtfrac

Class neqsim.thermodynamicoperations.flashops.saturationops.SolidComplexTemperatureCalc

class SolidComplexTemperatureCalc extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

comp1

String comp1

comp2

String comp2

HrefComplex

double HrefComplex

Default HrefComplex value.

Kcomplex

double Kcomplex

Default Kcomplex value.

TrefComplex

double TrefComplex

Default TrefComplex value.

Class neqsim.thermodynamicoperations.flashops.saturationops.WATcalc

class WATcalc extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.WaterDewPointEquilibriumLine

class WaterDewPointEquilibriumLine extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Serialized Fields

hydratePoints

double[][] hydratePoints

maxPressure

double maxPressure

minPressure

double minPressure

numberOfPoints

int numberOfPoints

Class neqsim.thermodynamicoperations.flashops.saturationops.WaterDewPointTemperatureFlash

class WaterDewPointTemperatureFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Class neqsim.thermodynamicoperations.flashops.saturationops.WaterDewPointTemperatureMultiphaseFlash

class WaterDewPointTemperatureMultiphaseFlash extends ConstantDutyTemperatureFlash implements Serializable

serialVersionUID:

1000L

Package neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.CricondenBarFlash

class CricondenBarFlash extends PTphaseEnvelope implements Serializable

serialVersionUID:

1000L

Serialized Fields

betaVal

double betaVal

nc

int nc

system

SystemInterface system

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.CricondenThermFlash

class CricondenThermFlash extends PTphaseEnvelope implements Serializable

serialVersionUID:

1000L

Serialized Fields

betaVal

double betaVal

nc

int nc

system

SystemInterface system

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.EnvelopeSegment

class EnvelopeSegment extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

densities

double[] densities

enthalpies

double[] enthalpies

entropies

double[] entropies

phaseType

EnvelopeSegment.PhaseType phaseType

pressures

double[] pressures

temperatures

double[] temperatures

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.HPTphaseEnvelope

class HPTphaseEnvelope extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

endPressure

double endPressure

endTemperature

double endTemperature

mainFrame

JFrame mainFrame

mainPanel

JPanel mainPanel

monitor

JProgressBar monitor

points

double[][] points

startPressure

double startPressure

startTemperature

double startTemperature

system

SystemInterface system

testOps

ThermodynamicOperations testOps

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.PTphaseEnvelope

class PTphaseEnvelope extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

bubblePointFirst

boolean bubblePointFirst

copiedPoints

double[][] copiedPoints

cricondenBar

double[] cricondenBar

cricondenBarfirst

double[] cricondenBarfirst

cricondenBarX

double[] cricondenBarX

cricondenBarXfirst

double[] cricondenBarXfirst

cricondenBarY

double[] cricondenBarY

cricondenBarYfirst

double[] cricondenBarYfirst

cricondenTherm

double[] cricondenTherm

cricondenThermfirst

double[] cricondenThermfirst

cricondenThermX

double[] cricondenThermX

cricondenThermXfirst

double[] cricondenThermXfirst

cricondenThermY

double[] cricondenThermY

cricondenThermYfirst

double[] cricondenThermYfirst

deltalnK

double[] deltalnK

deviation

double deviation

fileName

String fileName

g0

double g0

g1

double g1

gibbsEnergy

double gibbsEnergy

gibbsEnergyOld

double gibbsEnergyOld

graph2

Graph2b graph2

hascopiedPoints

boolean hascopiedPoints

i

int i

iterations

int iterations

j

int j

Kold

double Kold

lnK

double[] lnK

lnKwil

double[] lnKwil

lnOldK

double[] lnOldK

lnOldOldK

double[] lnOldOldK

lowestGibbsEnergyPhase

int lowestGibbsEnergyPhase

lowPres

double lowPres

mainFrame

JFrame mainFrame

mainPanel

JPanel mainPanel

maxNumberOfIterations

int maxNumberOfIterations

maxPressure

double maxPressure

minPressure

double minPressure

monitor

JProgressBar monitor

moreLines

boolean moreLines

navn

String[] navn

ncrfirst

int ncrfirst

np

int np

npfirst

int npfirst

nummer

int nummer

oldDeltalnK

double[] oldDeltalnK

outputToFile

boolean outputToFile

Pcfirst

double Pcfirst

phaseFraction

double phaseFraction

points

double[][] points

points2

double[][] points2

points3

double[][] points3

pointsH

double[] pointsH

pointsH2

double[][] pointsH2

pointsS

double[] pointsS

pointsS2

double[][] pointsS2

pointsV

double[] pointsV

pointsV2

double[][] pointsV2

pres

double pres

restart

boolean restart

speceq

int speceq

startPres

double startPres

system

SystemInterface system

Tcfirst

double Tcfirst

temp

double temp

tm

double[] tm

Tmin

double Tmin

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.PTPhaseEnvelopeMichelsen

class PTPhaseEnvelopeMichelsen extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubblePointDensities

ArrayList<Double> bubblePointDensities

bubblePointEnthalpies

ArrayList<Double> bubblePointEnthalpies

bubblePointEntropies

ArrayList<Double> bubblePointEntropies

bubblePointFirst

boolean bubblePointFirst

bubblePointPressures

ArrayList<Double> bubblePointPressures

bubblePointTemperatures

ArrayList<Double> bubblePointTemperatures

bubDensityArray

double[] bubDensityArray

bubEnthalpyArray

double[] bubEnthalpyArray

bubEntropyArray

double[] bubEntropyArray

bubPresArray

double[] bubPresArray

bubTempArray

double[] bubTempArray

cricondenBar

double[] cricondenBar

cricondenBarFirst

double[] cricondenBarFirst

cricondenBarX

double[] cricondenBarX

cricondenBarXFirst

double[] cricondenBarXFirst

cricondenBarY

double[] cricondenBarY

cricondenBarYFirst

double[] cricondenBarYFirst

cricondenTherm

double[] cricondenTherm

cricondenThermFirst

double[] cricondenThermFirst

cricondenThermX

double[] cricondenThermX

cricondenThermXFirst

double[] cricondenThermXFirst

cricondenThermY

double[] cricondenThermY

cricondenThermYFirst

double[] cricondenThermYFirst

criticalPoints

ArrayList<double[]> criticalPoints

dewDensityArray

double[] dewDensityArray

dewEnthalpyArray

double[] dewEnthalpyArray

dewEntropyArray

double[] dewEntropyArray

dewPointDensities

ArrayList<Double> dewPointDensities

dewPointEnthalpies

ArrayList<Double> dewPointEnthalpies

dewPointEntropies

ArrayList<Double> dewPointEntropies

dewPointPressures

ArrayList<Double> dewPointPressures

dewPointTemperatures

ArrayList<Double> dewPointTemperatures

dewPresArray

double[] dewPresArray

dewTempArray

double[] dewTempArray

dPmax

double dPmax

dTmax

double dTmax

isDewPhase

boolean isDewPhase

True while adding points to dew lists; false for bubble lists.

kValuesDivergedAfterCP

boolean kValuesDivergedAfterCP

True once K-values have diverged sufficiently after a CP (for multiple CP detection).

lowPres

double lowPres

maxPressure

double maxPressure

minPressure

double minPressure

phaseFraction

double phaseFraction

qualityBetaValues

double[] qualityBetaValues

Traced quality line beta values.

qualityLineData

Map<String,double[]> qualityLineData

segments

List<EnvelopeSegment> segments

Structured per-branch view of the envelope (built after run).

speceq

int speceq

Starting component index for Wilson estimate.

system

SystemInterface system

threePhaseRegionP

double[] threePhaseRegionP

Pressures of envelope points where 3+ phases detected.

threePhaseRegionT

double[] threePhaseRegionT

Temperatures of envelope points where 3+ phases detected.

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.PTphaseEnvelopeNew3

class PTphaseEnvelopeNew3 extends Object implements Serializable

serialVersionUID:

1L

Serialized Fields

betta

double[][] betta

bettaTransitionRegion

boolean[][] bettaTransitionRegion

dewPointPressures

double[] dewPointPressures

dewPointTemperatures

double[] dewPointTemperatures

maxPressure

double maxPressure

maxTemp

double maxTemp

minPressure

double minPressure

minTemp

double minTemp

pressurePhaseEnvelope

List<Double> pressurePhaseEnvelope

pressures

double[] pressures

pressureStep

double pressureStep

refinedTransitionPoints

List<double[]> refinedTransitionPoints

system

SystemInterface system

temperaturePhaseEnvelope

List<Double> temperaturePhaseEnvelope

temperatures

double[] temperatures

tempStep

double tempStep

Class neqsim.thermodynamicoperations.phaseenvelopeops.multicomponentenvelopeops.SysNewtonRhapsonPhaseEnvelope

class SysNewtonRhapsonPhaseEnvelope extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

a

Jama.Matrix a

beta

double beta

calcCP

boolean calcCP

dp

double dp

dPmax

double dPmax

ds

double ds

dt

double dt

dTmax

double dTmax

dxds

Jama.Matrix dxds

etterCP

boolean etterCP

etterCP2

boolean etterCP2

ettercricoT

boolean ettercricoT

fvec

Jama.Matrix fvec

hc

int hc

ic02p

int ic02p

ic03p

int ic03p

iter

int iter

iter2

int iter2

Jac

Jama.Matrix Jac

lc

int lc

neq

int neq

norm

double norm

npCrit

int npCrit

numberOfComponents

int numberOfComponents

PC1

double PC1

PC2

double PC2

s

Jama.Matrix s

sign

double sign

solver

NewtonRhapson solver

speceq

int speceq

specVal

double specVal

sumlnKvals

double sumlnKvals

sumx

double sumx

sumy

double sumy

system

SystemInterface system

TC1

double TC1

TC2

double TC2

testcrit

int testcrit

u

Jama.Matrix u

ucrit

Jama.Matrix ucrit

ucritold

Jama.Matrix ucritold

uold

Jama.Matrix uold

uolder

Jama.Matrix uolder

vol

double vol

volold

double volold

volold2

double volold2

xcoef

Jama.Matrix xcoef

xcoefOld

Jama.Matrix xcoefOld

xg

Jama.Matrix xg

Xgij

Jama.Matrix Xgij

Package neqsim.thermodynamicoperations.phaseenvelopeops.reactivecurves

Class neqsim.thermodynamicoperations.phaseenvelopeops.reactivecurves.PloadingCurve

class PloadingCurve extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

deltalnK

double[] deltalnK

deviation

double deviation

g0

double g0

g1

double g1

gibbsEnergy

double gibbsEnergy

gibbsEnergyOld

double gibbsEnergyOld

i

int i

iterations

int iterations

j

int j

Kold

double Kold

lnK

double[] lnK

lnOldK

double[] lnOldK

lnOldOldK

double[] lnOldOldK

lowestGibbsEnergyPhase

int lowestGibbsEnergyPhase

mainFrame

JFrame mainFrame

mainPanel

JPanel mainPanel

maxNumberOfIterations

int maxNumberOfIterations

monitor

JProgressBar monitor

moreLines

boolean moreLines

nummer

int nummer

oldDeltalnK

double[] oldDeltalnK

points

double[][] points

pres

double pres

speceq

int speceq

startPres

double startPres

system

SystemInterface system

temp

double temp

tm

double[] tm

Class neqsim.thermodynamicoperations.phaseenvelopeops.reactivecurves.PloadingCurve2

class PloadingCurve2 extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

beta

double beta

deltalnK

double[] deltalnK

deviation

double deviation

g0

double g0

g1

double g1

gibbsEnergy

double gibbsEnergy

gibbsEnergyOld

double gibbsEnergyOld

i

int i

iterations

int iterations

j

int j

Kold

double Kold

lnK

double[] lnK

lnOldK

double[] lnOldK

lnOldOldK

double[] lnOldOldK

lowestGibbsEnergyPhase

int lowestGibbsEnergyPhase

mainFrame

JFrame mainFrame

mainPanel

JPanel mainPanel

maxNumberOfIterations

int maxNumberOfIterations

monitor

JProgressBar monitor

moreLines

boolean moreLines

np

int np

nummer

int nummer

oldDeltalnK

double[] oldDeltalnK

points

double[][] points

pres

double pres

speceq

int speceq

startPres

double startPres

system

SystemInterface system

temp

double temp

tm

double[] tm

Package neqsim.thermodynamicoperations.propertygenerator

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGenerator

class OLGApropertyTableGenerator extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

CPG

double[][] CPG

CPHL

double[][] CPHL

DROGDP

double[][] DROGDP

DROGDT

double[][] DROGDT

DROHLDP

double[][] DROHLDP

DROHLDT

double[][] DROHLDT

HG

double[][] HG

HHL

double[][] HHL

PC

double PC

pressureLOG

double[] pressureLOG

pressures

double[] pressures

ROG

double[][] ROG

ROL

double[][] ROL

RS

double[][] RS

SEG

double[][] SEG

SEHL

double[][] SEHL

SIGGHL

double[][] SIGGHL

TC

double TC

TCG

double[][] TCG

TCHL

double[][] TCHL

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

VISG

double[][] VISG

VISHL

double[][] VISHL

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorKeywordFormat

class OLGApropertyTableGeneratorKeywordFormat extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

bubTLOG

double[] bubTLOG

components

String[] components

CPG

double[][] CPG

CPHL

double[][] CPHL

dens

double[] dens

dewP

double[] dewP

dewPLOG

double[] dewPLOG

GLR

double GLR

GOR

double GOR

HG

double[][] HG

HHL

double[][] HHL

molfracs

double[] molfracs

MW

double[] MW

names

String[] names

namesKeyword

String[] namesKeyword

nProps

int nProps

PC

double PC

PCLOG

double PCLOG

pressureLOG

double[] pressureLOG

pressures

double[] pressures

props

double[][][] props

ROG

double[][] ROG

ROL

double[][] ROL

RS

double[][] RS

SEG

double[][] SEG

SEHL

double[][] SEHL

SIGGHL

double[][] SIGGHL

stdGasDens

double stdGasDens

stdLiqDens

double stdLiqDens

stdPres

double stdPres

stdPresATM

double stdPresATM

stdTemp

double stdTemp

TC

double TC

TCG

double[][] TCG

TCHL

double[][] TCHL

TCLOG

double TCLOG

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

units

String[] units

VISG

double[][] VISG

VISHL

double[][] VISHL

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorWater

class OLGApropertyTableGeneratorWater extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

aMatrix

Jama.Matrix aMatrix

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

continuousDerivativesExtrapolation

boolean continuousDerivativesExtrapolation

dewP

double[] dewP

dewPLOG

double[] dewPLOG

fileName

String fileName

gasSystem

SystemInterface gasSystem

hasGasValues

boolean hasGasValues

hasOilValues

boolean hasOilValues

hasValue

boolean[][][] hasValue

hasWaterValues

boolean hasWaterValues

names

String[] names

nProps

int nProps

oilSystem

SystemInterface oilSystem

PC

double PC

pressureLOG

double[] pressureLOG

pressures

double[] pressures

pressureSteps

int pressureSteps

props

double[][][] props

ROG

double[][] ROG

RSWTOB

double RSWTOB

s

Jama.Matrix s

TC

double TC

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

temperatureSteps

int temperatureSteps

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

units

String[] units

waterSystem

SystemInterface waterSystem

xcoef

Jama.Matrix[] xcoef

XMatrixgas

Jama.Matrix XMatrixgas

XMatrixoil

Jama.Matrix XMatrixoil

XMatrixwater

Jama.Matrix XMatrixwater

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorWaterEven

class OLGApropertyTableGeneratorWaterEven extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

continuousDerivativesExtrapolation

boolean continuousDerivativesExtrapolation

dewP

double[] dewP

dewPLOG

double[] dewPLOG

fileName

String fileName

hasGasValues

boolean hasGasValues

hasOilValues

boolean hasOilValues

hasValue

boolean[][][] hasValue

hasWaterValues

boolean hasWaterValues

names

String[] names

nProps

int nProps

PC

double PC

pressureLOG

double[] pressureLOG

pressures

double[] pressures

pressureSteps

int pressureSteps

props

double[][][] props

ROG

double[][] ROG

RSWTOB

double RSWTOB

TC

double TC

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

temperatureSteps

int temperatureSteps

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

units

String[] units

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorWaterKeywordFormat

class OLGApropertyTableGeneratorWaterKeywordFormat extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

bubTLOG

double[] bubTLOG

components

String[] components

CPG

double[][] CPG

CPHL

double[][] CPHL

dens

double[] dens

dewP

double[] dewP

dewPLOG

double[] dewPLOG

GLR

double GLR

GOR

double GOR

HG

double[][] HG

HHL

double[][] HHL

molfracs

double[] molfracs

MW

double[] MW

names

String[] names

namesKeyword

String[] namesKeyword

nProps

int nProps

PC

double PC

PCLOG

double PCLOG

pressureLOG

double[] pressureLOG

pressures

double[] pressures

props

double[][][] props

ROG

double[][] ROG

ROL

double[][] ROL

RS

double[][] RS

RSWTOB

double RSWTOB

SEG

double[][] SEG

SEHL

double[][] SEHL

SIGGHL

double[][] SIGGHL

stdGasDens

double stdGasDens

stdLiqDens

double stdLiqDens

stdPres

double stdPres

stdPresATM

double stdPresATM

stdTemp

double stdTemp

stdWatDens

double stdWatDens

TC

double TC

TCG

double[][] TCG

TCHL

double[][] TCHL

TCLOG

double TCLOG

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

units

String[] units

VISG

double[][] VISG

VISHL

double[][] VISHL

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorWaterStudents

class OLGApropertyTableGeneratorWaterStudents extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

aMatrix

Jama.Matrix aMatrix

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

continuousDerivativesExtrapolation

boolean continuousDerivativesExtrapolation

dewP

double[] dewP

dewPLOG

double[] dewPLOG

fileName

String fileName

gasSystem

SystemInterface gasSystem

GL

double GL

GLW

double GLW

GW

double GW

hasGasValues

boolean hasGasValues

hasOilValues

boolean hasOilValues

hasValue

boolean[][][] hasValue

hasWaterValues

boolean hasWaterValues

LWS

double LWS

maxPressure

double maxPressure

maxTemperature

double maxTemperature

minPressure

double minPressure

minTemperature

double minTemperature

names

String[] names

nProps

int nProps

oilSystem

SystemInterface oilSystem

PC

double PC

pressureLOG

double[] pressureLOG

pressures

double[] pressures

pressureSteps

int pressureSteps

props

double[][][] props

ROG

double[][] ROG

RSWTOB

double RSWTOB

s

Jama.Matrix s

TC

double TC

temperatureLOG

double[] temperatureLOG

temperatures

double[] temperatures

temperatureSteps

int temperatureSteps

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

TLC

double TLC

units

String[] units

VLS

double VLS

VWS

double VWS

waterSystem

SystemInterface waterSystem

xcoef

Jama.Matrix[] xcoef

XMatrixgas

Jama.Matrix XMatrixgas

XMatrixoil

Jama.Matrix XMatrixoil

XMatrixwater

Jama.Matrix XMatrixwater

Class neqsim.thermodynamicoperations.propertygenerator.OLGApropertyTableGeneratorWaterStudentsPH

class OLGApropertyTableGeneratorWaterStudentsPH extends BaseOperation implements Serializable

serialVersionUID:

1000L

Serialized Fields

aMatrix

Jama.Matrix aMatrix

bubP

double[] bubP

bubPLOG

double[] bubPLOG

bubT

double[] bubT

continuousDerivativesExtrapolation

boolean continuousDerivativesExtrapolation

dewP

double[] dewP

dewPLOG

double[] dewPLOG

enthalpies

double[] enthalpies

enthalpiesLOG

double[] enthalpiesLOG

fileName

String fileName

gasSystem

SystemInterface gasSystem

GL

double GL

GLW

double GLW

GW

double GW

hasGasValues

boolean hasGasValues

hasOilValues

boolean hasOilValues

hasValue

boolean[][][] hasValue

hasWaterValues

boolean hasWaterValues

LWS

double LWS

maxPressure

double maxPressure

minPressure

double minPressure

names

String[] names

nProps

int nProps

oilSystem

SystemInterface oilSystem

PC

double PC

pressureLOG

double[] pressureLOG

pressures

double[] pressures

pressureSteps

int pressureSteps

props

double[][][] props

ROG

double[][] ROG

RSWTOB

double RSWTOB

s

Jama.Matrix s

TC

double TC

temperatureSteps

int temperatureSteps

thermoOps

ThermodynamicOperations thermoOps

thermoSystem

SystemInterface thermoSystem

TLC

double TLC

units

String[] units

VLS

double VLS

VWS

double VWS

waterSystem

SystemInterface waterSystem

xcoef

Jama.Matrix[] xcoef

XMatrixgas

Jama.Matrix XMatrixgas

XMatrixoil

Jama.Matrix XMatrixoil

XMatrixwater

Jama.Matrix XMatrixwater

Package neqsim.util

Class neqsim.util.NamedBaseClass

class NamedBaseClass extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

name

String name

tagNumber

String tagNumber

Package neqsim.util.agentic

Class neqsim.util.agentic.AgentBenchmarkSuite

class AgentBenchmarkSuite extends Object implements Serializable

serialVersionUID:

1001L

Serialized Fields

problems

List<AgentBenchmarkSuite.BenchmarkProblem> problems

submittedConvergence

Map<String,Boolean> submittedConvergence

submittedResults

Map<String,Double> submittedResults

suiteName

String suiteName

Class neqsim.util.agentic.AgentBenchmarkSuite.BenchmarkProblem

class BenchmarkProblem extends Object implements Serializable

serialVersionUID:

1002L

Serialized Fields

category

AgentBenchmarkSuite.ProblemCategory category

description

String description

difficulty

AgentBenchmarkSuite.Difficulty difficulty

expectedValue

double expectedValue

id

String id

referenceSource

String referenceSource

tolerancePct

double tolerancePct

unit

String unit

Class neqsim.util.agentic.AgentBenchmarkSuite.BenchmarkReport

class BenchmarkReport extends Object implements Serializable

serialVersionUID:

1004L

Serialized Fields

failed

int failed

notAttempted

int notAttempted

passed

int passed

results

List<AgentBenchmarkSuite.ProblemResult> results

suiteName

String suiteName

Class neqsim.util.agentic.AgentBenchmarkSuite.ProblemResult

class ProblemResult extends Object implements Serializable

serialVersionUID:

1003L

Serialized Fields

actualValue

double actualValue

detail

String detail

passed

boolean passed

problem

AgentBenchmarkSuite.BenchmarkProblem problem

verdict

String verdict

Class neqsim.util.agentic.AgentFeedbackCollector

class AgentFeedbackCollector extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

discoveredGaps

List<AgentFeedbackCollector.APIGap> discoveredGaps

sessions

List<AgentFeedbackCollector.SessionSummary> sessions

Class neqsim.util.agentic.AgentFeedbackCollector.APIGap

class APIGap extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

Description of what is missing.

discoveredAt

long discoveredAt

When it was discovered (epoch millis).

priority

String priority

Priority level.

suggestedPackage

String suggestedPackage

Suggested package for implementation.

Class neqsim.util.agentic.AgentFeedbackCollector.SessionSummary

class SessionSummary extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

agentName

String agentName

Agent name.

durationSeconds

double durationSeconds

Duration in seconds.

failureCategory

String failureCategory

Classified failure category (null if not failed).

outcome

AgentSession.Outcome outcome

Final outcome.

sessionId

String sessionId

Session ID.

successfulSimulations

int successfulSimulations

Successful simulation runs.

taskDescription

String taskDescription

Task description.

totalSimulations

int totalSimulations

Total simulation runs.

Class neqsim.util.agentic.AgentSession

class AgentSession extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

agentName

String agentName

endTimeMillis

long endTimeMillis

failureReason

String failureReason

metadata

Map<String,String> metadata

outcome

AgentSession.Outcome outcome

phases

List<AgentSession.PhaseRecord> phases

sessionId

String sessionId

simulationRuns

List<AgentSession.SimulationRun> simulationRuns

startTimeMillis

long startTimeMillis

taskDescription

String taskDescription

toolInvocations

List<AgentSession.ToolInvocation> toolInvocations

Class neqsim.util.agentic.AgentSession.PhaseRecord

class PhaseRecord extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

endTimeMillis

long endTimeMillis

When the phase ended (epoch millis), 0 if still running.

phase

AgentSession.Phase phase

The workflow phase.

startTimeMillis

long startTimeMillis

When the phase started (epoch millis).

Class neqsim.util.agentic.AgentSession.SimulationRun

class SimulationRun extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

Description of the simulation.

durationSeconds

double durationSeconds

Execution time in seconds.

success

boolean success

Whether the run succeeded.

timestamp

long timestamp

When the run was recorded (epoch millis).

Class neqsim.util.agentic.AgentSession.ToolInvocation

class ToolInvocation extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

description

String description

Description of what the tool was used for.

timestamp

long timestamp

When the tool was invoked (epoch millis).

toolName

String toolName

Name of the tool invoked.

Class neqsim.util.agentic.SimulationQualityGate

class SimulationQualityGate extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

energyBalanceTolerance

double energyBalanceTolerance

issues

List<SimulationQualityGate.QualityIssue> issues

massBalanceTolerance

double massBalanceTolerance

passed

boolean passed

validated

boolean validated

Class neqsim.util.agentic.SimulationQualityGate.QualityIssue

class QualityIssue extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

String category

Check category (e.g., "mass_balance", "physical_bounds").

message

String message

Description of the issue.

remediation

String remediation

Suggested remediation.

severity

SimulationQualityGate.Severity severity

Issue severity.

Class neqsim.util.agentic.TaskResultValidator

class TaskResultValidator extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.agentic.TaskResultValidator.ValidationReport

class ValidationReport extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

errors

List<TaskResultValidator.ValidationReport.Issue> errors

warnings

List<TaskResultValidator.ValidationReport.Issue> warnings

Class neqsim.util.agentic.TaskResultValidator.ValidationReport.Issue

class Issue extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

field

String field

The JSON field path with the issue.

message

String message

Description of the issue.

Package neqsim.util.annotation

Class neqsim.util.annotation.AISchemaDiscovery

class AISchemaDiscovery extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.annotation.AISchemaDiscovery.MethodSchema

class MethodSchema extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

category

String category

className

String className

description

String description

example

String example

methodName

String methodName

parameters

List<AISchemaDiscovery.ParameterSchema> parameters

priority

int priority

returnType

String returnType

safe

boolean safe

tags

String[] tags

Class neqsim.util.annotation.AISchemaDiscovery.ParameterSchema

class ParameterSchema extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

defaultValue

String defaultValue

description

String description

maxValue

double maxValue

minValue

double minValue

name

String name

options

String[] options

required

boolean required

type

String type

unit

String unit

Package neqsim.util.database

Class neqsim.util.database.AspenIP21Database

class AspenIP21Database extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimBlobDatabase

class NeqSimBlobDatabase extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimContractDataBase

class NeqSimContractDataBase extends NeqSimDataBase implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimDataBase

class NeqSimDataBase extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimExperimentDatabase

class NeqSimExperimentDatabase extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimFluidDataBase

class NeqSimFluidDataBase extends Object implements Serializable

serialVersionUID:

1000L

Class neqsim.util.database.NeqSimProcessDesignDataBase

class NeqSimProcessDesignDataBase extends NeqSimDataBase implements Serializable

serialVersionUID:

1000L

Package neqsim.util.exception

Exception Class neqsim.util.exception.InvalidInputException

class InvalidInputException extends ThermoException implements Serializable

serialVersionUID:

1000L

Exception Class neqsim.util.exception.InvalidOutputException

class InvalidOutputException extends ThermoException implements Serializable

serialVersionUID:

1000L

Serialized Fields

outputName

String outputName

Exception Class neqsim.util.exception.IsNaNException

class IsNaNException extends ThermoException implements Serializable

serialVersionUID:

1000L

Serialized Fields

paramName

String paramName

Exception Class neqsim.util.exception.NotImplementedException

class NotImplementedException extends ThermoException implements Serializable

serialVersionUID:

1000L

Exception Class neqsim.util.exception.NotInitializedException

class NotInitializedException extends ThermoException implements Serializable

serialVersionUID:

1000L

Exception Class neqsim.util.exception.ThermoException

class ThermoException extends Exception implements Serializable

serialVersionUID:

1000L

Exception Class neqsim.util.exception.TooManyIterationsException

class TooManyIterationsException extends ThermoException implements Serializable

serialVersionUID:

1000L

Serialized Fields

maxIterations

long maxIterations

Package neqsim.util.unit

Class neqsim.util.unit.BaseUnit

class BaseUnit extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

factor

double factor

Conversion factor

inunit

String inunit

Unit of process value

invalue

double invalue

Process value in given unit

SIvalue

double SIvalue

Process value in SI units

Class neqsim.util.unit.EnergyUnit

class EnergyUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Class neqsim.util.unit.LengthUnit

class LengthUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Class neqsim.util.unit.PowerUnit

class PowerUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Class neqsim.util.unit.PressureUnit

class PressureUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Class neqsim.util.unit.RateUnit

class RateUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Serialized Fields

boilp

double boilp

molarmass

double molarmass

stddens

double stddens

Class neqsim.util.unit.TemperatureUnit

class TemperatureUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Class neqsim.util.unit.TimeUnit

class TimeUnit extends BaseUnit implements Serializable

serialVersionUID:

1000L

Package neqsim.util.validation

Class neqsim.util.validation.AIIntegrationHelper

class AIIntegrationHelper extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

process

ProcessSystem process

schemaDiscovery

AISchemaDiscovery schemaDiscovery

Class neqsim.util.validation.AIIntegrationHelper.ExecutionResult

class ExecutionResult extends Object implements Serializable

serialVersionUID:

1000L

Serialized Fields

exception

Exception exception

message

String message

status

AIIntegrationHelper.ExecutionResult.Status status