Region (IF97 by Hummeling Engineering)

java.lang.Object
- com.hummeling.if97.Region

Direct Known Subclasses:

Region1, Region2, Region2Meta, Region3, Region4, Region5
```
abstract class Region
extends java.lang.Object
```
Abstract region class.

Author:

Ralph Hummeling (www.hummeling.com)

Field Summary

Fields
Modifier and Type Field and Description

private static java.lang.String NAME

private static double[] nB23

Fields
Modifier and Type	Field and Description
`private static java.lang.String`	`NAME`
`private static double[]`	`nB23`

Constructor Summary

Constructors
Constructor and Description

Region()

Constructors
Constructor and Description
`Region()`

Method Summary

Methods
Modifier and Type	Method and Description
`(package private) java.lang.String`	`getName()`
`(package private) static Region`	`getRegionHS(double enthalpy, double entropy)` Get region as a function of specific enthalpy & specific entropy.
`(package private) static Region`	`getRegionPH(double pressure, double enthalpy)`
`(package private) static Region`	`getRegionPS(double pressure, double entropy)` Get region as a function of pressure & specific entropy.
`(package private) static Region`	`getRegionPT(double pressure, double temperature)`
`(package private) static Region`	`getRegionPT(IF97.UnitSystem unitSystem, double pressure, double temperature)`
`(package private) abstract double`	`isobaricCubicExpansionCoefficientPT(double p, double T)` Isobaric cubic expansion coefficient.
`(package private) abstract double`	`isothermalCompressibilityPT(double p, double T)` Isothermal compressibility.
`(package private) static double`	`pressureB23(double T)` Auxiliary equation for the boundary between regions 2 and 3.
`(package private) abstract double`	`pressureHS(double h, double s)` Pressure as a function of specific enthalpy & specific entropy.
`(package private) static double`	`saturationPressure3(double s)`
`(package private) static double`	`specificEnthalpy1(double s)`
`(package private) static double`	`specificEnthalpy2ab(double s)`
`(package private) static double`	`specificEnthalpy2c3b(double s)`
`(package private) static double`	`specificEnthalpy3a(double s)`
`(package private) static double`	`specificEnthalpyB13(double s)`
`(package private) abstract double`	`specificEnthalpyPT(double p, double T)` Specific enthalpy.
`(package private) abstract double`	`specificEntropyPT(double p, double T)` Specific entropy.
`(package private) abstract double`	`specificEntropyRhoT(double rho, double T)` Specific entropy.
`(package private) abstract double`	`specificInternalEnergyPT(double p, double T)` Specific internal energy.
`(package private) abstract double`	`specificIsobaricHeatCapacityPT(double p, double T)` Specific isobaric heat capacity.
`(package private) abstract double`	`specificIsochoricHeatCapacityPT(double p, double T)` Specific isochoric heat capacity.
`(package private) abstract double`	`specificVolumePT(double p, double T)` Specific volume.
`(package private) abstract double`	`speedOfSoundPT(double p, double T)` Speed of sound.
`(package private) static double`	`temperatureB23HS(double h, double s)` Auxiliary equation for the boundary between regions 2 and 3.
`(package private) static double`	`temperatureB23P(double p)` Auxiliary equation for the boundary between regions 2 and 3.
`(package private) abstract double`	`temperatureHS(double h, double s)` Temperature.
`(package private) abstract double`	`temperaturePH(double p, double h)` Temperature.
`(package private) abstract double`	`temperaturePS(double p, double s)` Temperature as a function of pressure & specific entropy.
`(package private) abstract double`	`vapourFractionHS(double h, double s)` Vapour fraction.
`(package private) abstract double`	`vapourFractionPS(double pressure, double entropy)`

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
```
    See Also:
    Constant Field Values
  - nB23
```
private static final double[] nB23
```
- Constructor Detail
  - Region
```
Region()
```
- Method Detail
  - getName
```
java.lang.String getName()
```
  - getRegionHS
```
static Region getRegionHS(double enthalpy,
                 double entropy)
                   throws OutOfRangeException
```
    Get region as a function of specific enthalpy & specific entropy.
    
    Parameters:
    enthalpy - specific enthalpy
    entropy - specific entropy
    
    Returns:
    region
    
    Throws:
    
    OutOfRangeException - out-of-range exception
  - getRegionPH
```
static Region getRegionPH(double pressure,
                 double enthalpy)
                   throws OutOfRangeException
```
    Throws:
    
    OutOfRangeException
  - getRegionPT
```
static Region getRegionPT(IF97.UnitSystem unitSystem,
                 double pressure,
                 double temperature)
                   throws OutOfRangeException
```
    Throws:
    
    OutOfRangeException
  - getRegionPT
```
static Region getRegionPT(double pressure,
                 double temperature)
                   throws OutOfRangeException
```
    Throws:
    
    OutOfRangeException
  - getRegionPS
```
static Region getRegionPS(double pressure,
                 double entropy)
                   throws OutOfRangeException
```
    Get region as a function of pressure & specific entropy.
    
    Parameters:
    pressure - pressure [MPa]
    entropy - specific entropy [kJ/(kg K)]
    
    Returns:
    region
    
    Throws:
    
    OutOfRangeException - out-of-range exception
  - isobaricCubicExpansionCoefficientPT
```
abstract double isobaricCubicExpansionCoefficientPT(double p,
                                         double T)
```
    Isobaric cubic expansion coefficient.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    isobaric cubic expansion coefficient [1/K]
  - isothermalCompressibilityPT
```
abstract double isothermalCompressibilityPT(double p,
                                 double T)
```
    Isothermal compressibility.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    isothermal compressibility [1/MPa]
  - pressureB23
```
static double pressureB23(double T)
```
    Auxiliary equation for the boundary between regions 2 and 3.
    
    Parameters:
    T - temperature [K]
    
    Returns:
    pressure [MPa]
  - pressureHS
```
abstract double pressureHS(double h,
                double s)
```
    Pressure as a function of specific enthalpy & specific entropy.
    
    Parameters:
    h - specific enthalpy [kJ/kg]
    s - specific entropy [kJ/kg-K]
    
    Returns:
    pressure [MPa]
  - saturationPressure3
```
static double saturationPressure3(double s)
```
  - specificEnthalpy1
```
static double specificEnthalpy1(double s)
```
  - specificEnthalpy2ab
```
static double specificEnthalpy2ab(double s)
```
  - specificEnthalpy2c3b
```
static double specificEnthalpy2c3b(double s)
```
  - specificEnthalpy3a
```
static double specificEnthalpy3a(double s)
```
  - specificEnthalpyB13
```
static double specificEnthalpyB13(double s)
```
  - specificEnthalpyPT
```
abstract double specificEnthalpyPT(double p,
                        double T)
```
    Specific enthalpy.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific enthalpy [kJ/kg]
  - specificEntropyPT
```
abstract double specificEntropyPT(double p,
                       double T)
```
    Specific entropy.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific entropy [kJ/kg-K]
  - specificEntropyRhoT
```
abstract double specificEntropyRhoT(double rho,
                         double T)
```
    Specific entropy.
    
    Parameters:
    rho - density [kg/m³]
    T - temperature [K]
    
    Returns:
    specific entropy [kJ/kg-K]
  - specificInternalEnergyPT
```
abstract double specificInternalEnergyPT(double p,
                              double T)
```
    Specific internal energy.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific internal energy [kJ/kg]
  - specificIsobaricHeatCapacityPT
```
abstract double specificIsobaricHeatCapacityPT(double p,
                                    double T)
```
    Specific isobaric heat capacity.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific isobaric heat capacity [kJ/kg-K]
  - specificIsochoricHeatCapacityPT
```
abstract double specificIsochoricHeatCapacityPT(double p,
                                     double T)
```
    Specific isochoric heat capacity.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific isochoric heat capacity [kJ/kg-K]
  - specificVolumePT
```
abstract double specificVolumePT(double p,
                      double T)
```
    Specific volume.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    specific volume [m³/kg]
  - speedOfSoundPT
```
abstract double speedOfSoundPT(double p,
                    double T)
```
    Speed of sound.
    
    Parameters:
    p - pressure [MPa]
    T - temperature [K]
    
    Returns:
    speed of sound [m/s]
  - temperatureB23P
```
static double temperatureB23P(double p)
```
    Auxiliary equation for the boundary between regions 2 and 3.
    
    Parameters:
    p - pressure [MPa]
    
    Returns:
    temperature [K]
  - temperatureB23HS
```
static double temperatureB23HS(double h,
                      double s)
```
    Auxiliary equation for the boundary between regions 2 and 3.
    
    Parameters:
    h - specific enthalpy [kJ/kg]
    s - specific entropy [kJ/kg-K]
    
    Returns:
    temperature [K]
  - temperatureHS
```
abstract double temperatureHS(double h,
                   double s)
```
    Temperature.
    
    Parameters:
    h - specific enthalpy [kJ/kg]
    s - specific entropy [kJ/kg-K]
    
    Returns:
    temperature [K]
  - temperaturePH
```
abstract double temperaturePH(double p,
                   double h)
```
    Temperature.
    
    Parameters:
    p - pressure [MPa]
    h - specific enthalpy [kJ/kg]
    
    Returns:
    temperature [K]
  - temperaturePS
```
abstract double temperaturePS(double p,
                   double s)
```
    Temperature as a function of pressure & specific entropy.
    
    Parameters:
    p - pressure [MPa]
    s - specific entropy [kJ/kg-K]
    
    Returns:
    temperature [K]
  - vapourFractionHS
```
abstract double vapourFractionHS(double h,
                      double s)
```
    Vapour fraction.
    
    Parameters:
    h - specific enthalpy [kJ/kg]
    s - specific entropy [kJ/kg-K]
    
    Returns:
    vapour fraction [-]
  - vapourFractionPS
```
abstract double vapourFractionPS(double pressure,
                      double entropy)
```

Class Region

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NAME

nB23

Constructor Detail

Region

Method Detail

getName

getRegionHS

getRegionPH

getRegionPT

getRegionPT

getRegionPS

isobaricCubicExpansionCoefficientPT

isothermalCompressibilityPT

pressureB23

pressureHS

saturationPressure3

specificEnthalpy1

specificEnthalpy2ab

specificEnthalpy2c3b

specificEnthalpy3a

specificEnthalpyB13

specificEnthalpyPT

specificEntropyPT

specificEntropyRhoT

specificInternalEnergyPT

specificIsobaricHeatCapacityPT

specificIsochoricHeatCapacityPT

specificVolumePT

speedOfSoundPT

temperatureB23P

temperatureB23HS

temperatureHS

temperaturePH

temperaturePS

vapourFractionHS

vapourFractionPS