Class SystemGERG2008Eos

java.lang.Object

neqsim.thermo.system.SystemThermo

neqsim.thermo.system.SystemEos

neqsim.thermo.system.SystemGERG2008Eos

All Implemented Interfaces:

Serializable, Cloneable, SystemInterface

public class SystemGERG2008Eos
extends SystemEos

This class defines a thermodynamic system using the GERG2008Eos equation of state.

The system can use either the standard GERG-2008 model or the GERG-2008-H2 variant with improved hydrogen parameters. The default is the standard GERG-2008 model.

Version:

$Id: $Id

Author:

victorigi

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private GERG2008Type	gergModelType	The GERG-2008 model variant to use.
private static final long	serialVersionUID	Serialization version UID.

Fields inherited from class SystemThermo

a, allowPhaseShift, attractiveTermNumber, beta, CapeOpenProperties10, CapeOpenProperties11, characterization, checkStability, chemicalReactionOperations, chemicalSystem, componentNameTag, criticalPressure, criticalTemperature, enhancedMultiPhaseCheck, fluidInfo, fluidName, hydrateCheck, interfaceProp, isInitialized, logger, maxNumberOfPhases, modelName, multiPhaseCheck, numberOfComponents, numberOfPhases, numericDerivatives, oilAssayCharacterisation, phaseArray, phaseIndex, phaseType, resultTable, solidPhaseCheck, standard, waxCharacterisation

Constructor Summary

Constructors

Constructor	Description
SystemGERG2008Eos()	Constructor for SystemGERG2008Eos.
SystemGERG2008Eos(double T, double P)	Constructor for SystemGERG2008Eos.
SystemGERG2008Eos(double T, double P, boolean checkForSolids)	Constructor for SystemGERG2008Eos.

Method Summary

Modifier and Type	Method	Description
SystemGERG2008Eos	clone()	clone.
void	commonInitialization()	commonInitialization.
GERG2008Type	getGergModelType()	Get the current GERG-2008 model type.
boolean	isUsingHydrogenEnhancedModel()	Check if the hydrogen-enhanced GERG-2008-H2 model is being used.
void	setGergModelType(GERG2008Type modelType)	Set the GERG-2008 model type.
void	useHydrogenEnhancedModel()	Enable the GERG-2008-H2 model with improved hydrogen parameters.

Methods inherited from class SystemEos

equals

Methods inherited from class SystemThermo

addCapeOpenProperty, addCharacterized, addComponent, addComponent, addComponent, addComponent, addComponent, addComponent, addComponent, addComponent, addFluid, addFluid, addGasToLiquid, addHydratePhase, addHydratePhase2, addLiquidToGas, addOilFractions, addOilFractions, addPhase, addPhaseFractionToPhase, addPhaseFractionToPhase, addPlusFraction, addSalt, addSolidComplexPhase, addSolidPhase, addTBPfraction, addTBPfraction, addTBPfraction2, addTBPfraction3, addTBPfraction4, addToComponentNames, allowPhaseShift, allowPhaseShift, autoSelectMixingRule, autoSelectModel, calc_x_y, calc_x_y_nonorm, calcHenrysConstant, calcInterfaceProperties, calcKIJ, calculateDensityFromBoilingPoint, calculateMolarMassFromDensityAndBoilingPoint, changeComponentName, checkStability, checkStability, chemicalReactionInit, clearAll, createDatabase, createTable, deleteFluidPhase, display, doEnhancedMultiPhaseCheck, doMultiPhaseCheck, doSolidPhaseCheck, getAntoineVaporPressure, getBeta, getBeta, getCapeOpenProperties10, getCapeOpenProperties11, getCASNumbers, getCharacterization, getChemicalReactionOperations, getCompFormulaes, getCompIDs, getCompNames, getComponentNameTag, getCorrectedVolume, getCorrectedVolumeFraction, getCp, getCp, getCv, getCv, getDensity, getDensity, getdPdVtn, getdVdPtn, getdVdTpn, getEmptySystemClone, getEnthalpy, getEnthalpy, getEntropy, getEntropy, getExergy, getExergy, getFlowRate, getFluidInfo, getFluidName, getGamma, getGasPhase, getGibbsEnergy, getHeatOfVaporization, getHelmholtzEnergy, getHydrateCheck, getIdealLiquidDensity, getInterfacialTension, getInterfacialTension, getInterfacialTension, getInternalEnergy, getInternalEnergy, getInterphaseProperties, getJouleThomsonCoefficient, getJouleThomsonCoefficient, getKappa, getKinematicViscosity, getKinematicViscosity, getKvector, getLiquidPhase, getLiquidVolume, getLowestGibbsEnergyPhase, getMass, getMaxNumberOfPhases, getMixingRule, getMixingRuleName, getModelName, getMolarComposition, getMolarMass, getMolarMass, getMolarRate, getMolarVolume, getMolarVolume, getMolecularWeights, getMoleFraction, getMoleFractionsSum, getNormalBoilingPointTemperatures, getNumberOfComponents, getNumberOfOilFractionComponents, getNumberOfPhases, getOilAssayCharacterisation, getOilFractionIDs, getOilFractionLiquidDensityAt25C, getOilFractionMolecularMass, getOilFractionNormalBoilingPoints, getPC, getPhase, getPhase, getPhase, getPhaseFraction, getPhaseIndex, getPhaseIndex, getPhaseIndex, getPhaseNumberOfPhase, getPhaseOfType, getPhases, getPressure, getPressure, getPressure, getProperties, getProperty, getProperty, getProperty, getResultTable, getSoundSpeed, getSoundSpeed, getStandard, getStandard, getSumBeta, getTC, getTemperature, getTemperature, getTemperature, getThermalConductivity, getThermalConductivity, getTotalNumberOfMoles, getViscosity, getViscosity, getVolume, getVolume, getVolumeFraction, getWaxCharacterisation, getWaxModel, getWeightBasedComposition, getWtFraction, getZ, getzvector, getZvolcorr, hasPhaseType, hasPlusFraction, hasTBPFraction, init, init, init_x_y, initAnalytic, initAnalytic, initBeta, initNumeric, initNumeric, initNumeric, initPhysicalProperties, initPhysicalProperties, initRefPhases, initTotalNumberOfMoles, invertPhaseTypes, isBetaValid, isChemicalSystem, isChemicalSystem, isForcePhaseTypes, isImplementedCompositionDeriativesofFugacity, isImplementedCompositionDeriativesofFugacity, isImplementedPressureDeriativesofFugacity, isImplementedTemperatureDeriativesofFugacity, isInitialized, isMultiphaseWaxCheck, isNumericDerivatives, isPhase, normalizeBeta, orderByDensity, phaseToSystem, phaseToSystem, phaseToSystem, phaseToSystem, readFluid, readObject, readObjectFromFile, reInitPhaseInformation, reInitPhaseType, removeComponent, removePhase, removePhaseKeepTotalComposition, renameComponent, replacePhase, reset, reset_x_y, resetCharacterisation, resetDatabase, resetPhysicalProperties, save, saveFluid, saveFluid, saveObject, saveObjectToFile, saveToDataBase, setAllComponentsInPhase, setAllPhaseType, setAttractiveTerm, setBeta, setBeta, setBinaryInteractionParameter, setBinaryInteractionParameter, setBmixType, setComponentCriticalParameters, setComponentCriticalParameters, setComponentFlowRates, setComponentNames, setComponentNameTag, setComponentNameTagOnNormalComponents, setComponentVolumeCorrection, setComponentVolumeCorrection, setEmptyFluid, setEnhancedMultiPhaseCheck, setFluidInfo, setFluidName, setForcePhaseTypes, setForceSinglePhase, setForceSinglePhase, setHeavyTBPfractionAsPlusFraction, setHydrateCheck, setImplementedCompositionDeriativesofFugacity, setImplementedPressureDeriativesofFugacity, setImplementedTemperatureDeriativesofFugacity, setLastTBPasPlus, setMaxNumberOfPhases, setMixingRule, setMixingRule, setMixingRuleGEmodel, setMixingRuleParametersForComponent, setModel, setModelName, setMolarComposition, setMolarCompositionOfNamedComponents, setMolarCompositionOfPlusFluid, setMolarCompositionPlus, setMolarFlowRates, setMultiPhaseCheck, setMultiphaseWaxCheck, setNumberOfPhases, setNumericDerivatives, setPC, setPhase, setPhaseIndex, setPhaseType, setPhaseType, setPressure, setPressure, setSolidPhaseCheck, setSolidPhaseCheck, setStandard, setTC, setTemperature, setTemperature, setTemperature, setTotalFlowRate, setTotalNumberOfMoles, setUseTVasIndependentVariables, toCompJson, toJson, tuneModel, useTVasIndependentVariables, useVolumeCorrection, write, write

Methods inherited from class Object

finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface SystemInterface

addComponent, addComponents, addComponents, calcResultTable, display, getComponent, getComponent, getComponentNames, getGamma2, getHydrateFraction, getHydratePhase, getNumberOfMoles, getPhaseNumberOfPhase, hasComponent, hasComponent, hashCode, hasHydratePhase, hasPhaseType, hasSolidPhase, initPhysicalProperties, initProperties, initThermoProperties, prettyPrint, setMixingRule, setMixingRule, setPhysicalPropertyModel, setPhysicalPropertyModel, validateSetup

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

gergModelType

private GERG2008Type gergModelType

The GERG-2008 model variant to use. Default is STANDARD.

Constructor Details

SystemGERG2008Eos

public SystemGERG2008Eos()

Constructor for SystemGERG2008Eos.

SystemGERG2008Eos

public SystemGERG2008Eos(double T,
 double P)

Constructor for SystemGERG2008Eos.

Parameters:

T - The temperature in unit Kelvin

P - The pressure in unit bara (absolute pressure)

SystemGERG2008Eos

public SystemGERG2008Eos(double T,
 double P,
 boolean checkForSolids)

Constructor for SystemGERG2008Eos.

Parameters:

T - The temperature in unit Kelvin

P - The pressure in unit bara (absolute pressure)

checkForSolids - Set true to do solid phase check and calculations

Method Details

clone

public SystemGERG2008Eos clone()

clone.

Specified by:

clone in interface SystemInterface

Overrides:

clone in class SystemThermo

Returns:

a SystemInterface object

commonInitialization

public void commonInitialization()

commonInitialization.

getGergModelType

public GERG2008Type getGergModelType()

Get the current GERG-2008 model type.

Returns:

the GERG model type (STANDARD or HYDROGEN_ENHANCED)

setGergModelType

public void setGergModelType(GERG2008Type modelType)

Set the GERG-2008 model type.

Use GERG2008Type.STANDARD for the original GERG-2008 model, or GERG2008Type.HYDROGEN_ENHANCED for the GERG-2008-H2 model with improved hydrogen parameters from Beckmüller et al. (2022).

Parameters:

modelType - the GERG model type to use

useHydrogenEnhancedModel

public void useHydrogenEnhancedModel()

Enable the GERG-2008-H2 model with improved hydrogen parameters.

This is a convenience method equivalent to calling setGergModelType(GERG2008Type.HYDROGEN_ENHANCED).

Reference: Beckmüller, R., Thol, M., Sampson, I., Lemmon, E.W., Span, R. (2022). "Extension of the equation of state for natural gases GERG-2008 with improved hydrogen parameters". Fluid Phase Equilibria, 557, 113411.

isUsingHydrogenEnhancedModel

public boolean isUsingHydrogenEnhancedModel()

Check if the hydrogen-enhanced GERG-2008-H2 model is being used.

Returns:

true if using GERG-2008-H2, false if using standard GERG-2008