private void CalculateTemperatureFromEnthalpy(double pValue, double hValue, double moistureContentValue)
{
double tValue = Constants.NO_VALUE;
double tValueOld = Constants.NO_VALUE;
double vfValue = Constants.NO_VALUE;
double tBoilingPointOfSolvent = MoistureProperties.GetSaturationTemperature(pValue);
double tBoilingPointOfSolution = GetBoilingPoint(pValue);
double cpLiquid = specificHeat.Value;
if (cpLiquid == Constants.NO_VALUE)
{
cpLiquid = GetLiquidCp(MathUtility.Average(273.15, tBoilingPointOfSolution));
}
if (cpLiquid == Constants.NO_VALUE)
{
return;
}
//SteamTable steamTable = SteamTable.GetInstance();
//SubstanceStatesAndProperties props;
double hBoilingPointOfSolvent = CalculateLiquidEnthalpy(pValue, tBoilingPointOfSolvent, moistureContentValue);
double hBubble = GetBubblePointEnthalpy(pValue, moistureContentValue);
double hDew = GetDewPointEnthalpy(pValue, moistureContentValue);
double cs = GetCpOfAbsoluteDryMaterial();
int counter = 0;
if (hValue <= hBoilingPointOfSolvent)
{
double tempH;
//tValue = hValue / cpLiquid + 273.15;
tValue = tBoilingPointOfSolvent - (hBoilingPointOfSolvent - hValue) / cpLiquid;
do
{
counter++;
tValueOld = tValue;
tempH = (hValue - (1.0 - moistureContentValue) * cs * (tValue - 273.15)) / moistureContentValue;
//props = steamTable.GetPropertiesFromPressureAndEnthalpy(pValue, tempH);
//tValue = props.temperature;
tValue = MoistureProperties.GetTemperatureFromPressureAndEnthalpy(pValue, tempH);
} while (Math.Abs(tValue - tValueOld) > TOLERANCE && counter < 200);
if (counter == 200)
{
string msg = BuildProperErrorMessage(this.name + ": Calculation of temperature from enthalpy failed.\nPlease make sure each specified value in this stream");
throw new CalculationFailedException(msg);
}
vfValue = 0.0;
}
else if (hValue <= hBubble)
{
double moistureLiquidCp;
//double hBoilingPointOfSolvent = CalculateLiquidEnthalpy(pValue, tBoilingPointOfSolvent - TOLERANCE);
//tValue = hValue / cpLiquid + 273.15;
tValue = (hValue - hBoilingPointOfSolvent) / cpLiquid + tBoilingPointOfSolvent;
do
{
counter++;
tValueOld = tValue;
moistureLiquidCp = MoistureProperties.GetSpecificHeatOfLiquid(MathUtility.Average(tBoilingPointOfSolvent, tValue));
tValue = (hValue - hBoilingPointOfSolvent) / (moistureContentValue * moistureLiquidCp + (1.0 - moistureContentValue) * cs) + tBoilingPointOfSolvent;
} while (Math.Abs(tValue - tValueOld) > TOLERANCE && counter < 200);
if (counter == 200)
{
string msg = BuildProperErrorMessage(this.name + ": Calculation of temperature from enthalpy failed.\nPlease make sure each specified value in this stream");
throw new CalculationFailedException(msg);
}
vfValue = 0.0;
}
else if (hValue <= hDew)
{
double tBoilingPointOfSolutionFinal = tBoilingPointOfSolution;
double evapHeat = GetEvaporationHeat(tBoilingPointOfSolution);
double extraHeat = (hValue - hBubble);
if (moistureContentValue > 0.9999)
{
vfValue = extraHeat / evapHeat;
}
else
{
vfValue = 0;
double vfValueOld;
double moistureLiquidCp;
double massConcentrationValue = 1.0 - moistureContentValue;
do
{
counter++;
vfValueOld = vfValue;
vfValue = extraHeat / evapHeat;
massConcentrationValue = (1.0 - moistureContentValue) / (1.0 - vfValue);
tBoilingPointOfSolutionFinal = GetBoilingPoint(pValue, massConcentrationValue);
evapHeat = GetEvaporationHeat(MathUtility.Average(tBoilingPointOfSolution, tBoilingPointOfSolutionFinal));
moistureLiquidCp = MoistureProperties.GetSpecificHeatOfLiquid(MathUtility.Average(tBoilingPointOfSolution, tBoilingPointOfSolutionFinal));
extraHeat = hValue - hBubble - (moistureContentValue * moistureLiquidCp + (1.0 - moistureContentValue) * cs) * (tBoilingPointOfSolutionFinal - tBoilingPointOfSolution);
} while (Math.Abs(vfValue - vfValueOld) > TOLERANCE && counter < 200);
if (counter == 200)
{
string msg = BuildProperErrorMessage(this.name + ": Calculation of temperature from enthalpy failed.\nPlease make sure each specified value in this stream");
throw new CalculationFailedException(msg);
}
}
if (vfValue < 0.0)
{
vfValue = 0.0;
}
tValue = tBoilingPointOfSolutionFinal;
}
else if (hValue > hDew)
{
double apparentHeat;
double hVapor;
double cpGas = GetGasCp(tBoilingPointOfSolution);
tValue = (hValue - hDew) / cpGas + tBoilingPointOfSolution;
do
{
apparentHeat = (hValue - hDew - (1.0 - moistureContentValue) * cs * (tValue - tBoilingPointOfSolution)) / moistureContentValue;
//props = steamTable.GetPropertiesFromPressureAndTemperature(pValue, tBoilingPointOfSolution + TOLERANCE);
//hVapor = props.enthalpy + apparentHeat;
hVapor = apparentHeat + MoistureProperties.GetEnthalpyFromPressureAndTemperature(pValue, tBoilingPointOfSolution + TOLERANCE);
//props = steamTable.GetPropertiesFromPressureAndEnthalpy(pressure.Value, hVapor);
tValueOld = tValue;
//tValue = props.temperature;
tValue = MoistureProperties.GetTemperatureFromPressureAndEnthalpy(pressure.Value, hVapor);
} while (Math.Abs(tValue - tValueOld) > TOLERANCE && counter < 200);
if (counter == 200)
{
string msg = BuildProperErrorMessage(this.name + ": Calculation of temperature from enthalpy failed.\nPlease make sure each specified value in this stream");
throw new CalculationFailedException(msg);
}
vfValue = moistureContentValue;
}
Calculate(temperature, tValue);
Calculate(vaporFraction, vfValue);
if (!specificHeat.HasValue)
{
double cp;
if (hValue <= hBubble)
{
cp = GetLiquidCp(tValue);
}
else
{
cp = GetGasCp(tValue);
}
Calculate(specificHeat, cp);
}
}
//protected override bool IsSolveReady() {
// if (HasSolvedAlready) {
// return false;
// }
// bool retValue = false;
// if ((moistureContentDryBase.HasValue && !moistureContentWetBase.IsSpecifiedAndHasValue)
// || (moistureContentWetBase.HasValue && !moistureContentDryBase.IsSpecifiedAndHasValue)
// || concentration.HasValue && (!moistureContentDryBase.IsSpecifiedAndHasValue || !moistureContentWetBase.IsSpecifiedAndHasValue)) {
// retValue = true;
// }
// if (moistureContentDryBase.HasValue || moistureContentWetBase.HasValue || concentration.HasValue) {
// if ((specificHeatDryBase.HasValue && !specificHeat.IsSpecifiedAndHasValue)
// || (specificHeat.HasValue && !specificHeatDryBase.IsSpecifiedAndHasValue)) {
// retValue = true;
// }
// if ((massFlowRateDryBase.HasValue && !massFlowRate.IsSpecifiedAndHasValue)
// || (massFlowRate.HasValue && !massFlowRateDryBase.IsSpecifiedAndHasValue)) {
// retValue = true;
// }
// if ((massFlowRateDryBase.HasValue || massFlowRate.HasValue)
// && (density.HasValue && !volumeFlowRate.IsSpecifiedAndHasValue)) {
// retValue = true;
// }
// }
// return retValue;
//}
public override void Execute(bool propagate)
{
if (HasSolvedAlready)
{
return;
}
if (moistureContentDryBase.HasValue && !moistureContentWetBase.IsSpecifiedAndHasValue)
{
Calculate(moistureContentWetBase, moistureContentDryBase.Value / (1.0 + moistureContentDryBase.Value));
}
else if (moistureContentWetBase.HasValue && !moistureContentDryBase.IsSpecifiedAndHasValue)
{
if (moistureContentWetBase.Value != 1.0)
{
Calculate(moistureContentDryBase, moistureContentWetBase.Value / (1.0 - moistureContentWetBase.Value));
}
else
{
Calculate(moistureContentDryBase, Constants.NO_VALUE);
}
}
if (volumeFlowRate.IsSpecifiedAndHasValue && density.IsSpecifiedAndHasValue)
{
Calculate(massFlowRate, volumeFlowRate.Value * density.Value);
}
if (materialStateType == MaterialStateType.Liquid)
{
if (massConcentration.HasValue && massConcentration.Value > TOLERANCE)
{
if (!moistureContentDryBase.IsSpecifiedAndHasValue)
{
Calculate(moistureContentDryBase, (1.0 - massConcentration.Value) / massConcentration.Value);
}
if (!moistureContentWetBase.IsSpecifiedAndHasValue)
{
Calculate(moistureContentWetBase, 1.0 - massConcentration.Value);
}
}
else if (massConcentration.HasValue && massConcentration.Value <= TOLERANCE)
{
Calculate(moistureContentDryBase, Constants.NO_VALUE);
Calculate(moistureContentWetBase, 1.0);
Calculate(massFlowRateDryBase, Constants.NO_VALUE);
}
else if (moistureContentDryBase.HasValue && !massConcentration.IsSpecifiedAndHasValue)
{
Calculate(massConcentration, 1.0 / (1.0 + moistureContentDryBase.Value));
}
else if (moistureContentWetBase.HasValue && !massConcentration.IsSpecifiedAndHasValue)
{
Calculate(massConcentration, 1.0 - moistureContentWetBase.Value);
}
}
if (moistureContentWetBase.HasValue)
{
DryingMaterialComponents dmc = MaterialComponents;
dmc.Moisture.SetMassFractionValue(moistureContentWetBase.Value);
dmc.AbsoluteDryMaterial.SetMassFractionValue(1.0 - moistureContentWetBase.Value);
dmc.ComponentsFractionsChanged();
}
//if it is a known meterial in the material database, specific heat can be calculated
double moistureLiquidCp = MoistureProperties.GetSpecificHeatOfLiquid();
if (temperature.HasValue)
{
moistureLiquidCp = MoistureProperties.GetSpecificHeatOfLiquid(temperature.Value);
}
double cs = GetCpOfAbsoluteDryMaterial();
if (temperature.HasValue && moistureContentWetBase.HasValue)
{
double cp = CalculateCp(temperature.Value);
if (cp != Constants.NO_VALUE)
{
Calculate(specificHeat, cp);
if (moistureContentDryBase.HasValue)
{
Calculate(specificHeatDryBase, cp * (1.0 + moistureContentDryBase.Value));
}
}
else if (specificHeat.HasValue && moistureContentDryBase.HasValue)
{
Calculate(specificHeatDryBase, specificHeat.Value * (1.0 + moistureContentDryBase.Value));
}
}
//need this when temperature is not not known
//else if (cs != Constants.NO_VALUE && moistureContentDryBase.HasValue && !specificHeat.IsSpecifiedAndHasValue) {
else if (specificEnthalpy.HasValue && cs != Constants.NO_VALUE && moistureContentDryBase.HasValue && !specificHeat.IsSpecifiedAndHasValue)
{
double cpMaterialDryBase = cs + moistureContentDryBase.Value * moistureLiquidCp;
Calculate(specificHeatDryBase, cpMaterialDryBase);
Calculate(specificHeat, cpMaterialDryBase / (1.0 + moistureContentDryBase.Value));
}
//else if (moistureContentWetBase.Value == 1.0 && !specificHeat.IsSpecifiedAndHasValue) {
// Calculate(specificHeatDryBase, Constants.NO_VALUE);
// if (temperature.HasValue && moistureContentWetBase.HasValue) {
// moistureLiquidCp = CalculateCp(temperature.Value);
// Calculate(specificHeat, moistureLiquidCp);
// }
//}
if (materialStateType == MaterialStateType.Solid && specificHeat.HasValue)
{
if (temperature.HasValue)
{
//Calculate(specificEnthalpy, specificHeat.Value * (temperature.Value - 273.15));
CalculateEnthalpyFromTemperature(Constants.ONE_ATM, temperature.Value, moistureContentWetBase.Value);
}
else if (specificEnthalpy.HasValue && !temperature.IsSpecifiedAndHasValue)
{
//Calculate(temperature, specificEnthalpy.Value / specificHeat.Value + 273.15);
double tValue = CalculateTemperatureFromEnthalpyForSolid(specificEnthalpy.Value, moistureContentWetBase.Value);
Calculate(temperature, tValue);
}
}
else if (materialStateType == MaterialStateType.Liquid && pressure.HasValue && moistureContentWetBase.HasValue)
{
if (massConcentration.Value > TOLERANCE)
{
if (specificEnthalpy.HasValue && !temperature.IsSpecifiedAndHasValue)
{
CalculateTemperatureFromEnthalpy(pressure.Value, specificEnthalpy.Value, moistureContentWetBase.Value);
}
else if (temperature.HasValue)
{
CalculateEnthalpyFromTemperature(pressure.Value, temperature.Value, moistureContentWetBase.Value);
}
else if (vaporFraction.HasValue)
{
CalculateEnthalpyFromVaporFraction(pressure.Value, vaporFraction.Value, moistureContentWetBase.Value);
}
}
else
{
double h = Constants.NO_VALUE;
if (specificEnthalpy.HasValue && !temperature.IsSpecifiedAndHasValue)
{
double t = MoistureProperties.GetTemperatureFromPressureAndEnthalpy(pressure.Value, specificEnthalpy.Value);
Calculate(temperature, t);
CalculateVaporFractionIfNeeded();
}
else if (temperature.HasValue)
{
h = MoistureProperties.GetEnthalpyFromPressureAndTemperature(pressure.Value, temperature.Value);
Calculate(specificEnthalpy, h);
CalculateVaporFractionIfNeeded();
}
else if (vaporFraction.HasValue)
{
double boilingPoint = MoistureProperties.GetSaturationTemperature(pressure.Value);
h = MoistureProperties.GetEnthalpyFromPressureAndVaporFraction(pressure.Value, vaporFraction.Value);
Calculate(temperature, boilingPoint);
Calculate(specificEnthalpy, h);
}
//CalculateCpOfPureMoisture();
if (specificEnthalpy.HasValue)
{
CalculateCpOfPureMoisture();
}
}
}
if (massFlowRateDryBase.HasValue && moistureContentDryBase.HasValue && !massFlowRate.IsSpecifiedAndHasValue)
{
Calculate(massFlowRate, massFlowRateDryBase.Value * (1.0 + moistureContentDryBase.Value));
}
else if (massFlowRate.HasValue && moistureContentDryBase.HasValue && !massFlowRateDryBase.IsSpecifiedAndHasValue)
{
Calculate(massFlowRateDryBase, massFlowRate.Value / (1.0 + moistureContentDryBase.Value));
}
if (temperature.HasValue && massConcentration.HasValue)
{
CalculateDensity();
}
if (!volumeFlowRate.IsSpecifiedAndHasValue && massFlowRate.HasValue && density.HasValue)
{
Calculate(volumeFlowRate, massFlowRate.Value / density.Value);
}
if (materialStateType == MaterialStateType.Solid && temperature.HasValue && massFlowRate.HasValue &&
moistureContentWetBase.HasValue && specificHeat.HasValue && specificEnthalpy.HasValue)
{
solveState = SolveState.Solved;
}
else if (materialStateType == MaterialStateType.Liquid && pressure.HasValue && temperature.HasValue &&
massFlowRate.HasValue && moistureContentWetBase.HasValue && specificEnthalpy.HasValue &&
vaporFraction.HasValue)
{
solveState = SolveState.Solved;
}
AdjustVarsStates();
//if (HasSolvedAlready) {
// DryingMaterialComponents dmc = MaterialComponents;
// dmc.Moisture.SetMassFractionValue(moistureContentWetBase.Value);
// dmc.AbsoluteDryMaterial.SetMassFractionValue(1.0 - moistureContentWetBase.Value);
// dmc.ComponentsFractionsChanged();
//}
OnSolveComplete();
}
