packageLinearWater_pT

Base class for liquid, linear compressibility water models

Extends from Media.Interfaces.PartialLinearFluid (Generic pure liquid model with constant cp, compressibility and thermal expansion coefficients).

Parameters

TypeNameDefaultDescription
Modelica.Media.Interfaces.Choices.IndependentVariablesThermoStates (from PartialMedium)Enumeration type for independent variables
StringmediumName (from PartialMedium)"unusablePartialMedium"Name of the medium
String[:]substanceNames (from PartialMedium){mediumName}Names of the mixture substances. Set substanceNames={mediumName} if only one substance.
String[:]extraPropertiesNames (from PartialMedium)fill("", 0)Names of the additional (extra) transported properties. Set extraPropertiesNames=fill("",0) if unused
BooleansingleState (from PartialMedium)= true, if u and d are not a function of pressure
BooleanreducedX (from PartialMedium)true= true, if medium contains the equation sum(X) = 1.0; set reducedX=true, if only one substance (see docu for details)
BooleanfixedX (from PartialMedium)false= true, if medium contains the equation X = reference_X
AbsolutePressurereference_p (from PartialMedium)101325Reference pressure of Medium: default 1 atmosphere
Temperaturereference_T (from PartialMedium)298.15Reference temperature of Medium: default 25 deg Celsius
MassFraction[nX]reference_X (from PartialMedium)fill(1/nX, nX)Default mass fractions of medium
AbsolutePressurep_default (from PartialMedium)101325Default value for pressure of medium (for initialization)
TemperatureT_default (from PartialMedium)Modelica.Units.Conversions.from_degC(20)Default value for temperature of medium (for initialization)
SpecificEnthalpyh_default (from PartialMedium)specificEnthalpy_pTX(p_default, T_default, X_default)Default value for specific enthalpy of medium (for initialization)
MassFraction[nX]X_default (from PartialMedium)reference_XDefault value for mass fractions of medium (for initialization)
ExtraProperty[nC]C_default (from PartialMedium)fill(0, nC)Default value for trace substances of medium (for initialization)
IntegernS (from PartialMedium)size(substanceNames, 1)Number of substances
IntegernX (from PartialMedium)nSNumber of mass fractions
IntegernXi (from PartialMedium)if fixedX then 0 else if reducedX then nS - 1 else nSNumber of structurally independent mass fractions (see docu for details)
IntegernC (from PartialMedium)size(extraPropertiesNames, 1)Number of extra (outside of standard mass-balance) transported properties
Real[nC]C_nominal (from PartialMedium)1.0e-6*ones(nC)Default for the nominal values for the extra properties
SpecificHeatCapacitycp_const (from PartialLinearFluid)Specific heat capacity at constant pressure
IsobaricExpansionCoefficientbeta_const (from PartialLinearFluid)Thermal expansion coefficient at constant pressure
SI.IsothermalCompressibilitykappa_const (from PartialLinearFluid)Isothermal compressibility
MolarMassMM_const (from PartialLinearFluid)Molar mass
Densityreference_d (from PartialLinearFluid)Density in reference conditions
SpecificEnthalpyreference_h (from PartialLinearFluid)Specific enthalpy in reference conditions
SpecificEntropyreference_s (from PartialLinearFluid)Specific entropy in reference conditions
BooleanconstantJacobian (from PartialLinearFluid)If true, entries in thermodynamic Jacobian are constant, taken at reference conditions
Modelica.Media.Water.StandardWater.ThermodynamicStatestateModelica.Media.Water.StandardWater.setState_pT(reference_p, reference_T)