| Name |
Description |
| Inherited |
 ThermodynamicState
|
Thermodynamic state variables |
| data={Common.SingleGasesData.CH4,Common.SingleGasesData.C2H6,Common.SingleGasesData.C3H8,Common.SingleGasesData.C4H10_n_butane,Common.SingleGasesData.N2,Common.SingleGasesData.CO2} |
Data records of ideal gas substances |
| excludeEnthalpyOfFormation=true |
If true, enthalpy of formation Hf is not included in specific enthalpy h |
| referenceChoice=ReferenceEnthalpy.ZeroAt0K |
Choice of reference enthalpy |
| h_offset=0.0 |
User defined offset for reference enthalpy, if referenceChoice = UserDefined |
| MMX=data[:].MM |
Molar masses of components |
| methodForThermalConductivity=1 |
|
 BaseProperties
|
Base properties (p, d, T, h, u, R, MM, X, and Xi of NASA mixture gas |
 setState_pTX
|
Return thermodynamic state as function of p, T and composition X |
| setState_phX
|
Return thermodynamic state as function of p, h and composition X |
| setState_psX
|
Return thermodynamic state as function of p, s and composition X |
| setState_dTX
|
Return thermodynamic state as function of d, T and composition X |
| setSmoothState
|
Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |
| pressure
|
Return pressure of ideal gas |
| temperature
|
Return temperature of ideal gas |
| density
|
Return density of ideal gas |
 specificEnthalpy
|
Return specific enthalpy |
| specificInternalEnergy
|
Return specific internal energy |
 specificEntropy
|
Return specific entropy |
 specificGibbsEnergy
|
Return specific Gibbs energy |
| specificHelmholtzEnergy
|
Return specific Helmholtz energy |
 h_TX
|
Return specific enthalpy |
| h_TX_der
|
Return specific enthalpy derivative |
| gasConstant
|
Return gasConstant |
| specificHeatCapacityCp
|
Return specific heat capacity at constant pressure |
| specificHeatCapacityCv
|
Return specific heat capacity at constant volume from temperature and gas data |
| MixEntropy
|
Return mixing entropy of ideal gases / R |
| s_TX
|
Return temperature dependent part of the entropy, expects full entropy vector |
| isentropicExponent
|
Return isentropic exponent |
 velocityOfSound
|
Return velocity of sound |
 isentropicEnthalpyApproximation
|
Approximate method of calculating h_is from upstream properties and downstream pressure |
 isentropicEnthalpy
|
Return isentropic enthalpy |
| gasMixtureViscosity
|
Return viscosities of gas mixtures at low pressures (Wilke method) |
| dynamicViscosity
|
Return mixture dynamic viscosity |
| mixtureViscosityChung
|
Return the viscosity of gas mixtures without access to component viscosities (Chung, et. al. rules) |
| lowPressureThermalConductivity
|
Return thermal conductivities of low-pressure gas mixtures (Mason and Saxena Modification) |
| thermalConductivity
|
Return thermal conductivity for low pressure gas mixtures |
| isobaricExpansionCoefficient
|
Return isobaric expansion coefficient beta |
| isothermalCompressibility
|
Return isothermal compressibility factor |
| density_derp_T
|
Return density derivative by pressure at constant temperature |
| density_derT_p
|
Return density derivative by temperature at constant pressure |
| density_derX
|
Return density derivative by mass fraction |
| molarMass
|
Return molar mass of mixture |
| T_hX
|
Return temperature from specific enthalpy and mass fraction |
| T_psX
|
Return temperature from pressure, specific entropy and mass fraction |
| fluidConstants={Common.FluidData.CH4,Common.FluidData.C2H6,Common.FluidData.C3H8,Common.FluidData.C4H10_n_butane,Common.FluidData.N2,Common.FluidData.CO2} |
Constant data for the fluid |
| moleToMassFractions
|
Return mass fractions X from mole fractions |
| massToMoleFractions
|
Return mole fractions from mass fractions X |
| ThermoStates=Modelica.Media.Interfaces.Choices.IndependentVariables.pTX |
Enumeration type for independent variables |
| mediumName="SimpleNaturalGas" |
Name of the medium |
| substanceNames={"Methane","Ethane","Propane","N-Butane,","Nitrogen","Carbondioxide"} |
Names of the mixture substances. Set substanceNames={mediumName} if only one substance. |
| extraPropertiesNames=fill("", 0) |
Names of the additional (extra) transported properties. Set extraPropertiesNames=fill("",0) if unused |
| singleState=false |
= true, if u and d are not a function of pressure |
| reducedX=false |
= true if medium contains the equation sum(X) = 1.0; set reducedX=true if only one substance (see docu for details) |
| fixedX=true |
= true if medium contains the equation X = reference_X |
| reference_p=101325 |
Reference pressure of Medium: default 1 atmosphere |
| reference_T=298.15 |
Reference temperature of Medium: default 25 deg Celsius |
| reference_X={0.92,0.048,0.005,0.002,0.015,0.01} |
Default mass fractions of medium |
| p_default=101325 |
Default value for pressure of medium (for initialization) |
| T_default=Modelica.SIunits.Conversions.from_degC(20) |
Default value for temperature of medium (for initialization) |
| h_default=specificEnthalpy_pTX(p_default, T_default, X_default) |
Default value for specific enthalpy of medium (for initialization) |
| X_default=reference_X |
Default value for mass fractions of medium (for initialization) |
| C_default=fill(0, nC) |
Default value for trace substances of medium (for initialization) |
| nS=size(substanceNames, 1) |
Number of substances |
| nX=nS |
Number of mass fractions |
| nXi=if fixedX then 0 else if reducedX then nS - 1 else nS |
Number of structurally independent mass fractions (see docu for details) |
| nC=size(extraPropertiesNames, 1) |
Number of extra (outside of standard mass-balance) transported properties |
| C_nominal=1.0e-6*ones(nC) |
Default for the nominal values for the extra properties |
 FluidConstants
|
Critical, triple, molecular and other standard data of fluid |
 prandtlNumber
|
Return the Prandtl number |
 heatCapacity_cp
|
Alias for deprecated name |
| heatCapacity_cv
|
Alias for deprecated name |
| beta
|
Alias for isobaricExpansionCoefficient for user convenience |
| kappa
|
Alias of isothermalCompressibility for user convenience |
| density_derp_h
|
Return density derivative w.r.t. pressure at const specific enthalpy |
| density_derh_p
|
Return density derivative w.r.t. specific enthalpy at constant pressure |
| specificEnthalpy_pTX
|
Return specific enthalpy from p, T, and X or Xi |
| specificEntropy_pTX
|
Return specific enthalpy from p, T, and X or Xi |
| density_pTX
|
Return density from p, T, and X or Xi |
| temperature_phX
|
Return temperature from p, h, and X or Xi |
| density_phX
|
Return density from p, h, and X or Xi |
| temperature_psX
|
Return temperature from p,s, and X or Xi |
| density_psX
|
Return density from p, s, and X or Xi |
| specificEnthalpy_psX
|
Return specific enthalpy from p, s, and X or Xi |
 MassFlowRate
|
Type for mass flow rate with medium specific attributes |
 AbsolutePressure
|
Type for absolute pressure with medium specific attributes |
| Density
|
Type for density with medium specific attributes |
| DynamicViscosity
|
Type for dynamic viscosity with medium specific attributes |
| EnthalpyFlowRate
|
Type for enthalpy flow rate with medium specific attributes |
| MassFraction
|
Type for mass fraction with medium specific attributes |
| MoleFraction
|
Type for mole fraction with medium specific attributes |
| MolarMass
|
Type for molar mass with medium specific attributes |
| MolarVolume
|
Type for molar volume with medium specific attributes |
| IsentropicExponent
|
Type for isentropic exponent with medium specific attributes |
| SpecificEnergy
|
Type for specific energy with medium specific attributes |
| SpecificInternalEnergy
|
Type for specific internal energy with medium specific attributes |
| SpecificEnthalpy
|
Type for specific enthalpy with medium specific attributes |
| SpecificEntropy
|
Type for specific entropy with medium specific attributes |
| SpecificHeatCapacity
|
Type for specific heat capacity with medium specific attributes |
| SurfaceTension
|
Type for surface tension with medium specific attributes |
| Temperature
|
Type for temperature with medium specific attributes |
| ThermalConductivity
|
Type for thermal conductivity with medium specific attributes |
| PrandtlNumber
|
Type for Prandtl number with medium specific attributes |
| VelocityOfSound
|
Type for velocity of sound with medium specific attributes |
| ExtraProperty
|
Type for unspecified, mass-specific property transported by flow |
| CumulativeExtraProperty
|
Type for conserved integral of unspecified, mass specific property |
| ExtraPropertyFlowRate
|
Type for flow rate of unspecified, mass-specific property |
| IsobaricExpansionCoefficient
|
Type for isobaric expansion coefficient with medium specific attributes |
| DipoleMoment
|
Type for dipole moment with medium specific attributes |
| DerDensityByPressure
|
Type for partial derivative of density with respect to pressure with medium specific attributes |
| DerDensityByEnthalpy
|
Type for partial derivative of density with respect to enthalpy with medium specific attributes |
| DerEnthalpyByPressure
|
Type for partial derivative of enthalpy with respect to pressure with medium specific attributes |
| DerDensityByTemperature
|
Type for partial derivative of density with respect to temperature with medium specific attributes |
| DerTemperatureByPressure
|
Type for partial derivative of temperature with respect to pressure with medium specific attributes |
 SaturationProperties
|
Saturation properties of two phase medium |
| FluidLimits
|
Validity limits for fluid model |
 FixedPhase
|
Phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g., interactive use |
 Basic
|
The most basic version of a record used in several degrees of detail |
| IdealGas
|
The ideal gas version of a record used in several degrees of detail |
| TwoPhase
|
The two phase fluid version of a record used in several degrees of detail |