Name |
Description |
Inherited |
Water=1 |
Index of water (in substanceNames, massFractions X, etc.) |
Air=2 |
Index of air (in substanceNames, massFractions X, etc.) |
dryair |
Dry air properties |
steam |
Steam properties |
k_mair=steam.MM/dryair.MM |
Ratio of molar weights |
MMX={steam.MM,dryair.MM} |
Molar masses of components |
pStp=reference_p |
Pressure for which fluid density is defined |
dStp=1.2 |
Fluid density at pressure pStp |
ThermodynamicState
|
ThermodynamicState record for moist air |
BaseProperties
|
Base properties (p, d, T, h, u, R, MM and X and Xi) of a medium |
density
|
Gas density |
dynamicViscosity
|
Return the dynamic viscosity of dry air |
enthalpyOfCondensingGas
|
Enthalpy of steam per unit mass of steam |
enthalpyOfGas
|
Enthalpy of gas mixture per unit mass of gas mixture |
enthalpyOfLiquid
|
Enthalpy of liquid (per unit mass of liquid) which is linear in the temperature |
enthalpyOfNonCondensingGas
|
Enthalpy of non-condensing gas per unit mass of steam |
enthalpyOfVaporization
|
Enthalpy of vaporization of water |
gasConstant
|
Return ideal gas constant as a function from thermodynamic state, only valid for phi<1 |
pressure
|
Returns pressure of ideal gas as a function of the thermodynamic state record |
isobaricExpansionCoefficient
|
Isobaric expansion coefficient beta |
isothermalCompressibility
|
Isothermal compressibility factor |
saturationPressure
|
Saturation curve valid for 223.16 <= T <= 373.16 (and slightly outside with less accuracy) |
specificEntropy
|
Return the specific entropy, only valid for phi<1 |
density_derp_T
|
Return the partial derivative of density with respect to pressure at constant temperature |
density_derT_p
|
Return the partial derivative of density with respect to temperature at constant pressure |
density_derX
|
Return the partial derivative of density with respect to mass fractions at constant pressure and temperature |
specificHeatCapacityCp
|
Specific heat capacity of gas mixture at constant pressure |
specificHeatCapacityCv
|
Specific heat capacity of gas mixture at constant volume |
setState_dTX
|
Return thermodynamic state as function of density d, temperature T and composition X |
setState_phX
|
Return thermodynamic state as function of pressure p, specific enthalpy h and composition X |
setState_pTX
|
Return thermodynamic state as function of p, T and composition X or Xi |
setState_psX
|
Return the thermodynamic state as function of p, s and composition X or Xi |
specificEnthalpy
|
Compute specific enthalpy from pressure, temperature and mass fraction |
specificEnthalpy_pTX
|
Specific enthalpy |
specificGibbsEnergy
|
Specific Gibbs energy |
specificHelmholtzEnergy
|
Specific Helmholtz energy |
isentropicEnthalpy
|
Return the isentropic enthalpy |
specificInternalEnergy
|
Specific internal energy |
temperature
|
Return temperature of ideal gas as a function of the thermodynamic state record |
molarMass
|
Return the molar mass |
temperature_phX
|
Compute temperature from specific enthalpy and mass fraction |
thermalConductivity
|
Thermal conductivity of dry air as a polynomial in the temperature |
GasProperties
|
Coefficient data record for properties of perfect gases |
h_fg=Buildings.Utilities.Psychrometrics.Constants.h_fg |
Latent heat of evaporation of water |
cpWatLiq=Buildings.Utilities.Psychrometrics.Constants.cpWatLiq |
Specific heat capacity of liquid water |
der_enthalpyOfLiquid
|
Temperature derivative of enthalpy of liquid per unit mass of liquid |
der_enthalpyOfCondensingGas
|
Derivative of enthalpy of steam per unit mass of steam |
enthalpyOfDryAir
|
Enthalpy of dry air per unit mass of dry air |
der_enthalpyOfDryAir
|
Derivative of enthalpy of dry air per unit mass of dry air |
der_enthalpyOfNonCondensingGas
|
Derivative of enthalpy of non-condensing gas per unit mass of steam |
der_specificHeatCapacityCp
|
Derivative of specific heat capacity of gas mixture at constant pressure |
der_specificHeatCapacityCv
|
Derivative of specific heat capacity of gas mixture at constant volume |
fluidConstants={Modelica.Media.IdealGases.Common.FluidData.H2O,Modelica.Media.IdealGases.Common.FluidData.N2} |
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="Air" |
Name of the medium |
substanceNames={"water","air"} |
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=true |
= true if medium contains the equation sum(X) = 1.0; set reducedX=true if only one substance (see docu for details) |
fixedX=false |
= true if medium contains the equation X = reference_X |
reference_p=101325 |
Reference pressure of Medium: default 1 atmosphere |
reference_T=273.15 |
Reference temperature of Medium: default 25 deg Celsius |
reference_X={0.01,0.99} |
Default mass fractions of medium |
p_default=101325 |
Default value for pressure of medium (for initialization) |
T_default=293.15 |
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 |
setSmoothState
|
Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |
prandtlNumber
|
Return the Prandtl number |
heatCapacity_cp
|
Alias for deprecated name |
heatCapacity_cv
|
Alias for deprecated name |
isentropicExponent
|
Return isentropic exponent |
velocityOfSound
|
Return velocity of sound |
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 |
specificEntropy_pTX
|
Return specific enthalpy from p, T, and X or Xi |
density_pTX
|
Return density from p, T, 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 |