Class AdiabaticTwoPhasePipe

java.lang.Object

neqsim.util.NamedBaseClass

neqsim.process.SimulationBaseClass

neqsim.process.equipment.ProcessEquipmentBaseClass

neqsim.process.equipment.TwoPortEquipment

neqsim.process.equipment.pipeline.Pipeline

neqsim.process.equipment.pipeline.AdiabaticTwoPhasePipe

All Implemented Interfaces:

Serializable, Runnable, CapacityConstrainedEquipment, PipeLineInterface, ProcessEquipmentInterface, TwoPortInterface, SimulationInterface, NamedInterface

public class AdiabaticTwoPhasePipe
extends Pipeline

AdiabaticTwoPhasePipe class.

Version:

$Id: $Id

Author:

Even Solbraa

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
(package private) double	dH
(package private) double	flowLimit
(package private) String	flowPattern
private double	inletElevation	Elevation at pipe inlet in meters.
(package private) double	inletPressure
(package private) double	insideDiameter
(package private) double	length
(package private) String	maxflowunit
private double	outletElevation	Elevation at pipe outlet in meters.
(package private) String	pipeSpecification
(package private) double	pipeWallRoughness
protected double	pressureOut
private double	pressureOutLimit
private static final long	serialVersionUID	Serialization version UID.
(package private) boolean	setPressureOut
(package private) boolean	setTemperature
protected double	temperatureOut
(package private) double	velocity

Fields inherited from class Pipeline

adiabatic, ambientTemperature, angle, burialDepth, buried, coatingConductivity, coatingThickness, corrosionAllowance, designCode, designPressure, designTemperature, diameter, elevation, equilibriumHeatTransfer, equilibriumMassTransfer, fileName, fittings, flowRegime, frictionFactor, heatTransferCoefficient, innerHeatTransferCoefficient, insulationConductivity, insulationThickness, insulationType, legHeights, legPositions, liquidHoldup, liquidHoldupProfile, locationClass, logger, materialGrade, mechanicalDesignCalculator, numberOfIncrements, numberOfLegs, numberOfNodesInLeg, outerHeatTransferCoefficient, outerHeatTransferCoeffs, outerTemperature, pipe, pipeDiameters, pipelineMechanicalDesign, pipeMaterial, pipeSchedule, pipeWallConductivity, pressureDrop, pressureProfile, reynoldsNumber, roughness, soilConductivity, surfaceTemperature, system, temperatureProfile, times, useFittings, wallHeatTransferCoeffs, wallThickness

Fields inherited from class TwoPortEquipment

inStream, outStream

Fields inherited from class ProcessEquipmentBaseClass

conditionAnalysisMessage, energyStream, hasController, isSolved, properties, report

Fields inherited from class SimulationBaseClass

calcIdentifier, calculateSteadyState, time

Fields inherited from class NamedBaseClass

name

Constructor Summary

Constructors

Constructor	Description
AdiabaticTwoPhasePipe(String name)	Constructor for AdiabaticTwoPhasePipe.
AdiabaticTwoPhasePipe(String name, StreamInterface inStream)	Constructor for AdiabaticTwoPhasePipe.

Method Summary

Modifier and Type	Method	Description
double	calcFlow(double pressureOut)	calcFlow.
double	calcPressureOut()	calcPressureOut.
double	calcWallFrictionFactor(double reynoldsNumber)	calcWallFrictionFactor.
void	displayResult()	displayResult.
double	getDiameter()	getDiameter.
double	getInletElevation()	Getter for the field inletElevation.
double	getLength()	Getter for the field length.
double	getOutletElevation()	Getter for the field outletElevation.
FlowSystemInterface	getPipe()	Get the underlying flow system (for advanced models).
double	getPipeWallRoughness()	Getter for the field pipeWallRoughness.
double	getPressureOutLimit()	Getter for the field pressureOutLimit.
double	getSuperficialVelocity()	getSuperficialVelocity.
SystemInterface	getThermoSystem()	getThermoSystem.
void	run(UUID id)	In this method all thermodynamic and unit operations will be calculated in a steady state calculation.
void	setDiameter(double diameter)	setDiameter.
void	setFlowLimit(double flowLimit, String unit)	Setter for the field flowLimit.
void	setInitialFlowPattern(String flowPattern)	Set initial flow pattern for simulation initialization.
void	setInletElevation(double inletElevation)	Setter for the field inletElevation.
void	setLength(double length)	Setter for the field length.
void	setOutletElevation(double outletElevation)	Setter for the field outletElevation.
void	setOutletPressure(double pressure)	Set outlet pressure.
void	setOutletTemperature(double temperature)	Set outlet temperature.
void	setPipeSpecification(double nominalDiameter, String pipeSec)	Setter for the field pipeSpecification.
void	setPipeWallRoughness(double pipeWallRoughness)	Setter for the field pipeWallRoughness.
void	setPressureOutLimit(double pressureOutLimit)	Setter for the field pressureOutLimit.

Methods inherited from class Pipeline

addCapacityConstraint, addFitting, addFittingFromDatabase, addFittings, addStandardFitting, addStandardFittings, calculateHoopStress, calculateMAOP, calculateMinimumWallThickness, calculateOverallHeatTransferCoefficient, calculateTestPressure, calculateVonMisesStress, clearCapacityConstraints, clearFittings, generateMechanicalDesignReport, getAmbientTemperature, getAngle, getBottleneckConstraint, getBurialDepth, getCapacityConstraints, getCapacityDuty, getCapacityMax, getCoatingConductivity, getCoatingThickness, getCorrosionAllowance, getDesignCode, getDesignPressure, getDesignTemperature, getEffectiveLength, getElevation, getEntropyProduction, getEquivalentLength, getFittings, getFlowRegime, getFrictionFactor, getHeatTransferCoefficient, getInnerHeatTransferCoefficient, getInsulationConductivity, getInsulationThickness, getInsulationType, getLiquidHoldup, getLiquidHoldupProfile, getLocationClass, getMAOP, getMaterialGrade, getMaxUtilization, getMechanicalDesign, getMechanicalDesignCalculator, getNumberOfFittings, getNumberOfIncrements, getNumberOfLegs, getOuterHeatTransferCoefficient, getOutletPressure, getOutletTemperature, getPipeMaterial, getPipeSchedule, getPipeWallConductivity, getPressureDrop, getPressureProfile, getReynoldsNumber, getSoilConductivity, getSuperficialVelocity, getSuperficialVelocity, getTemperatureProfile, getTimes, getTotalFittingsLdRatio, getVelocity, getWallThickness, initializeCapacityConstraints, initMechanicalDesign, isAdiabatic, isBuried, isCapacityExceeded, isHardLimitExceeded, isMechanicalDesignSafe, isUseFittings, printFittingsSummary, removeCapacityConstraint, runTransient, setAdiabatic, setAmbientTemperature, setAmbientTemperatures, setAngle, setBurialDepth, setBuried, setCoatingConductivity, setCoatingThickness, setConstantSurfaceTemperature, setCorrosionAllowance, setDesignCode, setDesignPressure, setDesignPressure, setDesignTemperature, setElevation, setEquilibriumHeatTransfer, setEquilibriumMassTransfer, setHeatTransferCoefficient, setHeightProfile, setInnerHeatTransferCoefficient, setInsulationConductivity, setInsulationThickness, setInsulationType, setLegPositions, setLocationClass, setMaterialGrade, setNumberOfIncrements, setNumberOfLegs, setNumberOfNodesInLeg, setOuterHeatTransferCoefficient, setOuterHeatTransferCoefficients, setOuterTemperatures, setOutputFileName, setPipeDiameters, setPipeMaterial, setPipeOuterHeatTransferCoefficients, setPipeSchedule, setPipeWallConductivity, setPipeWallHeatTransferCoefficients, setPipeWallRoughness, setSoilConductivity, setTimeSeries, setUseFittings, setWallHeatTransferCoefficients, setWallThickness, toJson, toJson

Methods inherited from class TwoPortEquipment

getInletPressure, getInletStream, getInletTemperature, getMassBalance, getOutletPressure, getOutletStream, getOutletTemperature, setInletPressure, setInletStream, setInletTemperature, setOutletPressure, setOutletStream, setOutletTemperature, validateSetup

Methods inherited from class ProcessEquipmentBaseClass

copy, equals, getConditionAnalysisMessage, getController, getEffectiveCapacityFactor, getEnergyStream, getExergyChange, getFailureMode, getMassBalance, getMinimumFlow, getPressure, getPressure, getProperty, getReport_json, getResultTable, getSpecification, getTemperature, getTemperature, hashCode, isActive, isActive, isCapacityAnalysisEnabled, isFailed, isSetEnergyStream, reportResults, restoreFromFailure, run_step, runConditionAnalysis, setCapacityAnalysisEnabled, setController, setEnergyStream, setEnergyStream, setFailureMode, setFlowValveController, setMinimumFlow, setPressure, setRegulatorOutSignal, setSpecification, setTemperature, simulateDegradedOperation, simulateTrip, solved

Methods inherited from class SimulationBaseClass

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime

Methods inherited from class NamedBaseClass

getName, getTagName, setName, setTagName

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface CapacityConstrainedEquipment

disableAllConstraints, enableAllConstraints, getAvailableMargin, getAvailableMarginPercent, getMaxUtilizationPercent, getUtilizationSummary, isCapacityAnalysisEnabled, isNearCapacityLimit, setCapacityAnalysisEnabled

Methods inherited from interface NamedInterface

getName, getTagName, setName, setTagName

Methods inherited from interface PipeLineInterface

setOutPressure, setOutTemperature

Methods inherited from interface ProcessEquipmentInterface

getExergyChange, getFluid, getOperatingEnvelopeViolation, getRestCapacity, getSimulationValidationErrors, isSimulationValid, isWithinOperatingEnvelope, needRecalculation

Methods inherited from interface SimulationInterface

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, run, run_step, run_step, runTransient, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime, solved

Methods inherited from interface TwoPortInterface

getInletPressure, getInletStream, getInletTemperature, getInStream, getOutletPressure, getOutletStream, getOutletTemperature, getOutStream, setInletPressure, setInletStream, setInletTemperature, setOutletPressure, setOutletStream, setOutletTemperature, setOutPressure, setOutTemperature

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

inletPressure

double inletPressure

setTemperature

boolean setTemperature

setPressureOut

boolean setPressureOut

temperatureOut

protected double temperatureOut

pressureOut

protected double pressureOut

pressureOutLimit

private double pressureOutLimit

length

double length

flowLimit

double flowLimit

maxflowunit

String maxflowunit

insideDiameter

double insideDiameter

velocity

double velocity

pipeWallRoughness

double pipeWallRoughness

inletElevation

private double inletElevation

Elevation at pipe inlet in meters.

outletElevation

private double outletElevation

Elevation at pipe outlet in meters.

dH

double dH

flowPattern

String flowPattern

pipeSpecification

String pipeSpecification

Constructor Details

AdiabaticTwoPhasePipe

public AdiabaticTwoPhasePipe(String name)

Constructor for AdiabaticTwoPhasePipe.

Parameters:

name - name of pipe

AdiabaticTwoPhasePipe

public AdiabaticTwoPhasePipe(String name,
 StreamInterface inStream)

Constructor for AdiabaticTwoPhasePipe.

Parameters:

name - name of pipe

inStream - input stream

Method Details

setPipeSpecification

public void setPipeSpecification(double nominalDiameter,
 String pipeSec)

Setter for the field pipeSpecification.

Specified by:

setPipeSpecification in interface PipeLineInterface

Overrides:

setPipeSpecification in class Pipeline

Parameters:

nominalDiameter - a double

pipeSec - a String object

getThermoSystem

public SystemInterface getThermoSystem()

getThermoSystem.

Specified by:

getThermoSystem in interface ProcessEquipmentInterface

Overrides:

getThermoSystem in class ProcessEquipmentBaseClass

Returns:

a SystemInterface object

setOutletTemperature

public void setOutletTemperature(double temperature)

Set outlet temperature.

Specified by:

setOutletTemperature in interface PipeLineInterface

Specified by:

setOutletTemperature in interface TwoPortInterface

Overrides:

setOutletTemperature in class Pipeline

Parameters:

temperature - outlet temperature in Kelvin

setOutletPressure

public void setOutletPressure(double pressure)

Set outlet pressure.

Specified by:

setOutletPressure in interface PipeLineInterface

Specified by:

setOutletPressure in interface TwoPortInterface

Overrides:

setOutletPressure in class Pipeline

Parameters:

pressure - outlet pressure in bara

calcWallFrictionFactor

public double calcWallFrictionFactor(double reynoldsNumber)

calcWallFrictionFactor.

Parameters:

reynoldsNumber - a double

Returns:

a double

calcPressureOut

public double calcPressureOut()

calcPressureOut.

Returns:

a double

calcFlow

public double calcFlow(double pressureOut)

calcFlow.

Calculates the flow rate required to achieve the specified outlet pressure using bisection iteration. This method iteratively adjusts the flow rate until the calculated outlet pressure matches the target outlet pressure.

Parameters:

pressureOut - target outlet pressure in bara

Returns:

the calculated flow rate in the current system units

run

public void run(UUID id)

In this method all thermodynamic and unit operations will be calculated in a steady state calculation.

Specified by:

run in interface SimulationInterface

Overrides:

run in class Pipeline

Parameters:

id - UUID

displayResult

public void displayResult()

displayResult.

Specified by:

displayResult in interface ProcessEquipmentInterface

Overrides:

displayResult in class Pipeline

getSuperficialVelocity

public double getSuperficialVelocity()

getSuperficialVelocity.

Returns:

a double

getPipe

public FlowSystemInterface getPipe()

Get the underlying flow system (for advanced models).

Specified by:

getPipe in interface PipeLineInterface

Overrides:

getPipe in class Pipeline

Returns:

flow system interface or null if not applicable

setInitialFlowPattern

public void setInitialFlowPattern(String flowPattern)

Set initial flow pattern for simulation initialization.

Specified by:

setInitialFlowPattern in interface PipeLineInterface

Overrides:

setInitialFlowPattern in class Pipeline

Parameters:

flowPattern - initial flow pattern (e.g., "stratified", "slug")

getLength

public double getLength()

Getter for the field length.

Specified by:

getLength in interface PipeLineInterface

Overrides:

getLength in class Pipeline

Returns:

the length

setLength

public void setLength(double length)

Setter for the field length.

Specified by:

setLength in interface PipeLineInterface

Overrides:

setLength in class Pipeline

Parameters:

length - the length to set

getDiameter

public double getDiameter()

getDiameter.

Specified by:

getDiameter in interface PipeLineInterface

Overrides:

getDiameter in class Pipeline

Returns:

the diameter

setDiameter

public void setDiameter(double diameter)

setDiameter.

Specified by:

setDiameter in interface PipeLineInterface

Overrides:

setDiameter in class Pipeline

Parameters:

diameter - the diameter to set

getPipeWallRoughness

public double getPipeWallRoughness()

Getter for the field pipeWallRoughness.

Specified by:

getPipeWallRoughness in interface PipeLineInterface

Overrides:

getPipeWallRoughness in class Pipeline

Returns:

the pipeWallRoughness

setPipeWallRoughness

public void setPipeWallRoughness(double pipeWallRoughness)

Setter for the field pipeWallRoughness.

Specified by:

setPipeWallRoughness in interface PipeLineInterface

Overrides:

setPipeWallRoughness in class Pipeline

Parameters:

pipeWallRoughness - the pipeWallRoughness to set

getInletElevation

public double getInletElevation()

Getter for the field inletElevation.

Specified by:

getInletElevation in interface PipeLineInterface

Overrides:

getInletElevation in class Pipeline

Returns:

the inletElevation

setInletElevation

public void setInletElevation(double inletElevation)

Setter for the field inletElevation.

Specified by:

setInletElevation in interface PipeLineInterface

Overrides:

setInletElevation in class Pipeline

Parameters:

inletElevation - the inletElevation to set

getOutletElevation

public double getOutletElevation()

Getter for the field outletElevation.

Specified by:

getOutletElevation in interface PipeLineInterface

Overrides:

getOutletElevation in class Pipeline

Returns:

the outletElevation

setOutletElevation

public void setOutletElevation(double outletElevation)

Setter for the field outletElevation.

Specified by:

setOutletElevation in interface PipeLineInterface

Overrides:

setOutletElevation in class Pipeline

Parameters:

outletElevation - the outletElevation to set

getPressureOutLimit

public double getPressureOutLimit()

Getter for the field pressureOutLimit.

Returns:

a double

setPressureOutLimit

public void setPressureOutLimit(double pressureOutLimit)

Setter for the field pressureOutLimit.

Parameters:

pressureOutLimit - a double

setFlowLimit

public void setFlowLimit(double flowLimit,
 String unit)

Setter for the field flowLimit.

Parameters:

flowLimit - a double

unit - a String object