com.hummeling.if97

Class Region4

java.lang.Object

com.hummeling.if97.Region

com.hummeling.if97.Region4

final class Region4
extends Region

Region 4.

Author:

Ralph Hummeling (www.hummeling.com)

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static double[]	n
private static java.lang.String	NAME
(package private) static double	pRef
(package private) static double	Tref

Constructor Summary

Constructors

Constructor and Description
Region4()

Method Summary

Methods

Modifier and Type	Method and Description
(package private) java.lang.String	getName()
(package private) double	isobaricCubicExpansionCoefficientPT(double p, double T) Isobaric cubic expansion coefficient.
(package private) double	isothermalCompressibilityPT(double p, double T) Isothermal compressibility.
(package private) double	pressureHS(double h, double s) Pressure as a function of specific enthalpy & specific entropy.
(package private) static double	saturationPressureH(double enthalpy) Boundary saturation pressure for the boundary between regions 3 and 4.
(package private) double	saturationPressureHS(double enthalpy, double entropy) Saturation pressure.
(package private) static double	saturationPressureS(double entropy) Boundary saturation pressure for the boundary between regions 3 and 4.
(package private) static double	saturationPressureT(double saturationTemperature) Saturation pressure.
(package private) static double	saturationTemperatureP(double saturationPressure) Saturation temperature.
(package private) double	specificEnthalpyPT(double p, double T) Specific enthalpy.
(package private) double	specificEnthalpyPX(double p, double x) Specific enthalpy as a function of pressure & vapour fraction.
(package private) double	specificEnthalpyTX(double T, double x) Specific enthalpy as a function of temperature & vapour fraction.
(package private) double	specificEntropyPT(double p, double T) Specific entropy.
(package private) double	specificEntropyPX(double p, double x) Specific entropy as a function of pressure & vapour fraction.
(package private) double	specificEntropyRhoT(double rho, double T) Specific entropy.
(package private) double	specificEntropyTX(double T, double x) Specific entropy as a function of temperature & vapour fraction.
(package private) double	specificInternalEnergyPT(double p, double T) Specific internal energy.
(package private) double	specificIsobaricHeatCapacityPT(double p, double T) Specific isobaric heat capacity.
(package private) double	specificIsochoricHeatCapacityPT(double p, double T) Specific isochoric heat capacity.
(package private) double	specificVolumePT(double p, double T) Specific volume.
(package private) double	speedOfSoundPT(double p, double T) Speed of sound.
(package private) double	temperatureHS(double enthalpy, double entropy) Saturation temperature as a function of specific enthalpy & specific entropy.
(package private) double	temperaturePH(double pressure, double dummy) Temperature.
(package private) double	temperaturePS(double pressure, double dummy) Temperature as a function of pressure & specific entropy.
(package private) double	vapourFractionHS(double enthalpy, double entropy) Vapour fraction as a function of specific enthalpy & specific entropy.
(package private) double	vapourFractionPS(double pressure, double entropy)

Methods inherited from class com.hummeling.if97.Region

getRegionHS, getRegionPH, getRegionPS, getRegionPT, getRegionPT, pressureB23, saturationPressure3, specificEnthalpy1, specificEnthalpy2ab, specificEnthalpy2c3b, specificEnthalpy3a, specificEnthalpyB13, temperatureB23HS, temperatureB23P

Methods inherited from class java.lang.Object

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

Field Detail

NAME

private static final java.lang.String NAME

Tref

static final double Tref

pRef

static final double pRef

n

static final double[] n

Constructor Detail

Region4

Region4()

Method Detail

getName

java.lang.String getName()

Overrides:

getName in class Region

isobaricCubicExpansionCoefficientPT

double isobaricCubicExpansionCoefficientPT(double p,
                                         double T)

Description copied from class: Region

Isobaric cubic expansion coefficient.

Specified by:

isobaricCubicExpansionCoefficientPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

isobaric cubic expansion coefficient [1/K]

isothermalCompressibilityPT

double isothermalCompressibilityPT(double p,
                                 double T)

Description copied from class: Region

Isothermal compressibility.

Specified by:

isothermalCompressibilityPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

isothermal compressibility [1/MPa]

pressureHS

double pressureHS(double h,
                double s)

Description copied from class: Region

Pressure as a function of specific enthalpy & specific entropy.

Specified by:

pressureHS in class Region

Parameters:

h - specific enthalpy [kJ/kg]

s - specific entropy [kJ/kg-K]

Returns:

pressure [MPa]

saturationPressureH

static double saturationPressureH(double enthalpy)

Boundary saturation pressure for the boundary between regions 3 and 4.

Parameters:

enthalpy - specific enthalpy

Returns:

saturation pressure

saturationPressureHS

double saturationPressureHS(double enthalpy,
                          double entropy)

Saturation pressure.

Parameters:

enthalpy - specific enthalpy

entropy - specific entropy

Returns:

saturation pressure [MPa]

Throws:

OutOfRangeException

saturationPressureS

static double saturationPressureS(double entropy)

Boundary saturation pressure for the boundary between regions 3 and 4.

Parameters:

entropy - specific entropy

Returns:

saturation pressure

saturationPressureT

static double saturationPressureT(double saturationTemperature)

Saturation pressure.

Parameters:

saturationTemperature - saturation temperature [K]

Returns:

saturation pressure [MPa]

Throws:

OutOfRangeException

saturationTemperatureP

static double saturationTemperatureP(double saturationPressure)

Saturation temperature. Out-of-range exceptions not thrown here because this method is also used for finding regions.

Parameters:

saturationPressure - saturation pressure [MPa]

Returns:

saturation temperature [K]

specificEnthalpyPT

double specificEnthalpyPT(double p,
                        double T)

Description copied from class: Region

Specific enthalpy.

Specified by:

specificEnthalpyPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific enthalpy [kJ/kg]

specificEnthalpyPX

double specificEnthalpyPX(double p,
                        double x)

Specific enthalpy as a function of pressure & vapour fraction.

Parameters:

p - pressure [MPa]

x - vapour fraction [-]

Returns:

specific enthalpy [kJ/kg]

specificEnthalpyTX

double specificEnthalpyTX(double T,
                        double x)

Specific enthalpy as a function of temperature & vapour fraction.

Parameters:

T - temperature [K]

x - vapour fraction [-]

Returns:

specific enthalpy [kJ/kg]

specificEntropyPT

double specificEntropyPT(double p,
                       double T)

Description copied from class: Region

Specific entropy.

Specified by:

specificEntropyPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific entropy [kJ/kg-K]

specificEntropyPX

double specificEntropyPX(double p,
                       double x)

Specific entropy as a function of pressure & vapour fraction.

Parameters:

p - pressure [MPa]

x - vapour fraction [-]

Returns:

specific entropy [kJ/(kg K)]

specificEntropyRhoT

double specificEntropyRhoT(double rho,
                         double T)

Description copied from class: Region

Specific entropy.

Specified by:

specificEntropyRhoT in class Region

Parameters:

rho - density [kg/m³]

T - temperature [K]

Returns:

specific entropy [kJ/kg-K]

specificEntropyTX

double specificEntropyTX(double T,
                       double x)

Specific entropy as a function of temperature & vapour fraction.

Parameters:

T - temperature [K]

x - vapour fraction [-]

Returns:

specific entropy [kJ/(kg K)]

specificInternalEnergyPT

double specificInternalEnergyPT(double p,
                              double T)

Description copied from class: Region

Specific internal energy.

Specified by:

specificInternalEnergyPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific internal energy [kJ/kg]

specificIsobaricHeatCapacityPT

double specificIsobaricHeatCapacityPT(double p,
                                    double T)

Description copied from class: Region

Specific isobaric heat capacity.

Specified by:

specificIsobaricHeatCapacityPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific isobaric heat capacity [kJ/kg-K]

specificIsochoricHeatCapacityPT

double specificIsochoricHeatCapacityPT(double p,
                                     double T)

Description copied from class: Region

Specific isochoric heat capacity.

Specified by:

specificIsochoricHeatCapacityPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific isochoric heat capacity [kJ/kg-K]

specificVolumePT

double specificVolumePT(double p,
                      double T)

Description copied from class: Region

Specific volume.

Specified by:

specificVolumePT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

specific volume [m³/kg]

speedOfSoundPT

double speedOfSoundPT(double p,
                    double T)

Description copied from class: Region

Speed of sound.

Specified by:

speedOfSoundPT in class Region

Parameters:

p - pressure [MPa]

T - temperature [K]

Returns:

speed of sound [m/s]

temperatureHS

double temperatureHS(double enthalpy,
                   double entropy)

Saturation temperature as a function of specific enthalpy & specific entropy. [IF97 Supplementary Release S04]

Specified by:

temperatureHS in class Region

Parameters:

enthalpy - specific enthalpy

entropy - specific entropy

Returns:

saturation temperature

temperaturePH

double temperaturePH(double pressure,
                   double dummy)

Description copied from class: Region

Temperature.

Specified by:

temperaturePH in class Region

Parameters:

pressure - pressure [MPa]

dummy - specific enthalpy [kJ/kg]

Returns:

temperature [K]

temperaturePS

double temperaturePS(double pressure,
                   double dummy)

Description copied from class: Region

Temperature as a function of pressure & specific entropy.

Specified by:

temperaturePS in class Region

Parameters:

pressure - pressure [MPa]

dummy - specific entropy [kJ/kg-K]

Returns:

temperature [K]

vapourFractionHS

double vapourFractionHS(double enthalpy,
                      double entropy)

Vapour fraction as a function of specific enthalpy & specific entropy. [IF97 Supplementary Release S04]

Specified by:

vapourFractionHS in class Region

Parameters:

enthalpy - specific enthalpy

entropy - specific entropy

Returns:

vapour fraction [-]

vapourFractionPS

double vapourFractionPS(double pressure,
                      double entropy)

Specified by:

vapourFractionPS in class Region