Modelica.Media.Interfaces.PartialMixtureMedium.FluidConstants

Information

Modelica definition

redeclare replaceable record extends FluidConstants 
  "extended fluid constants"
  Temperature criticalTemperature "critical temperature";
  AbsolutePressure criticalPressure "critical pressure";
  MolarVolume criticalMolarVolume "critical molar Volume";
  Real acentricFactor "Pitzer acentric factor";
  Temperature triplePointTemperature "triple point temperature";
  AbsolutePressure triplePointPressure "triple point pressure";
  Temperature meltingPoint "melting point at 101325 Pa";
  Temperature normalBoilingPoint "normal boiling point (at 101325 Pa)";
  DipoleMoment dipoleMoment 
    "dipole moment of molecule in Debye (1 debye = 3.33564e10-30 C.m)";
  Boolean hasIdealGasHeatCapacity=false 
    "true if ideal gas heat capacity is available";
  Boolean hasCriticalData=false "true if critical data are known";
  Boolean hasDipoleMoment=false "true if a dipole moment known";
  Boolean hasFundamentalEquation=false "true if a fundamental equation";
  Boolean hasLiquidHeatCapacity=false 
    "true if liquid heat capacity is available";
  Boolean hasSolidHeatCapacity=false "true if solid heat capacity is available";
  Boolean hasAccurateViscosityData=false 
    "true if accurate data for a viscosity function is available";
  Boolean hasAccurateConductivityData=false 
    "true if accurate data for thermal conductivity is available";
  Boolean hasVapourPressureCurve=false 
    "true if vapour pressure data, e.g., Antoine coefficents are known";
  Boolean hasAcentricFactor=false "true if Pitzer accentric factor is known";
  SpecificEnthalpy HCRIT0=0.0 
    "Critical specific enthalpy of the fundamental equation";
  SpecificEntropy SCRIT0=0.0 
    "Critical specific entropy of the fundamental equation";
  SpecificEnthalpy deltah=0.0 
    "Difference between specific enthalpy model (h_m) and f.eq. (h_f) (h_m - h_f)";
  SpecificEntropy deltas=0.0 
    "Difference between specific enthalpy model (s_m) and f.eq. (s_f) (s_m - s_f)";
end FluidConstants;

Modelica.Media.Interfaces.PartialMixtureMedium.moleToMassFractions

Information

Inputs

Type	Name	Default	Description
MoleFraction	moleFractions[:]		Mole fractions of mixture [1]
MolarMass	MMX[:]		molar masses of components [kg/mol]

Outputs

Type	Name	Description
MassFraction	X[size(moleFractions, 1)]	Mass fractions of gas mixture [1]

Modelica definition

function moleToMassFractions 
  "Return mass fractions X from mole fractions"
  extends Modelica.Icons.Function;
  input SI.MoleFraction moleFractions[:] "Mole fractions of mixture";
  input MolarMass[:] MMX "molar masses of components";
  output SI.MassFraction X[size(moleFractions, 1)] 
    "Mass fractions of gas mixture";
protected 
  MolarMass Mmix =  moleFractions*MMX "molar mass of mixture";
algorithm 
  for i in 1:size(moleFractions, 1) loop
    X[i] := moleFractions[i]*MMX[i] /Mmix;
  end for;
end moleToMassFractions;

Modelica.Media.Interfaces.PartialMixtureMedium.massToMoleFractions

Information

Inputs

Type	Name	Default	Description
MassFraction	X[:]		Mass fractions of mixture [1]
MolarMass	MMX[:]		molar masses of components [kg/mol]

Outputs

Type	Name	Description
MoleFraction	moleFractions[size(X, 1)]	Mole fractions of gas mixture [1]

Modelica definition

function massToMoleFractions 
  "Return mole fractions from mass fractions X"
  extends Modelica.Icons.Function;
  input SI.MassFraction X[:] "Mass fractions of mixture";
  input SI.MolarMass[:] MMX "molar masses of components";
  output SI.MoleFraction moleFractions[size(X, 1)] 
    "Mole fractions of gas mixture";
protected 
  Real invMMX[size(X, 1)] "inverses of molar weights";
  SI.MolarMass Mmix "molar mass of mixture";
algorithm 
  for i in 1:size(X, 1) loop
    invMMX[i] := 1/MMX[i];
  end for;
  Mmix := 1/(X*invMMX);
  for i in 1:size(X, 1) loop
    moleFractions[i] := Mmix*X[i]/MMX[i];
  end for;
end massToMoleFractions;