/// <summary>
///
/// </summary>
/// <param name="satTemp">Must be between 273.15 and CriticalTemperature (in K)</param>
/// <param name="phase"></param>
/// <returns>null if out of range</returns>
public override PVTEntry GetEntryAtSatTemp(double satTemp, SaturationRegion phase)
{
double?satPressure = GetSatPressure(satTemp);
if (satPressure == null)
{
return(null);
}
IPVTEntryFactory fac = null;
switch (phase)
{
case SaturationRegion.Liquid:
fac = new Region1Factory(satTemp, satPressure.Value);
break;
case SaturationRegion.Vapor:
fac = new Region2Factory(satTemp, satPressure.Value, CriticalTemperature, CriticalPressure);
break;
case SaturationRegion.Solid:
default:
fac = null;
break;
}
return(fac?.BuildThermoEntry());
}
public void SatPressure(SaturationRegion region, double temperature,
double pressure, double specificVolume, double internalEnergy, double enthalpy,
double entropy, double isochoricHeatCapacity, double isobaricHeatCapacity,
double speedOfSound,
double vaporFraction, double liquidFraction, double solidFraction)
{
PVTEntry expected = new PVTEntry()
{
Region = (Region)region,
Temperature = temperature,
Pressure = pressure,
SpecificVolume = specificVolume,
InternalEnergy = internalEnergy,
Enthalpy = enthalpy,
Entropy = entropy,
IsochoricHeatCapacity = isochoricHeatCapacity,
IsobaricHeatCapacity = isobaricHeatCapacity,
SpeedOfSound = speedOfSound,
VaporMassFraction = vaporFraction,
LiquidMassFraction = liquidFraction,
SolidMassFraction = solidFraction,
Density = 1 / specificVolume
};
PVTEntry actual = _steamTable.GetEntryAtSatPressure(pressure, region);
ValidateEntry(expected, actual);
}
/// <summary> /// Gets entry and Pressure for saturated liquid or vapor at passed satTemp. Null when no entry found. /// </summary> /// <param name="satTemp">Desired saturation temperature</param> /// <param name="phase"></param> /// <returns></returns> public abstract PVTEntry GetEntryAtSatTemp(double satTemp, SaturationRegion phase);
/// <summary> /// Gets entry for saturated liquid or vapor at passed pressure. Null when no entry found. /// </summary> /// <param name="pressure">Desired Pressure (Pa)</param> /// <param name="phase"></param> /// <returns></returns> public abstract PVTEntry GetEntryAtSatPressure(double pressure, SaturationRegion phase);
