packageEssotherm650
Essotherm thermal oil
Extends from TableBased (Incompressible medium properties based on tables).
Information
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Media.Interfaces.Choices.IndependentVariables | ThermoStates (from PartialMedium) | Enumeration type for independent variables | |
| String | mediumName (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 |
| Boolean | singleState (from PartialMedium) | = true, if u and d are not a function of pressure | |
| Boolean | reducedX (from PartialMedium) | true | = true, if medium contains the equation sum(X) = 1.0; set reducedX=true, if only one substance (see docu for details) |
| Boolean | fixedX (from PartialMedium) | false | = true, if medium contains the equation X = reference_X |
| AbsolutePressure | reference_p (from PartialMedium) | 101325 | Reference pressure of Medium: default 1 atmosphere |
| Temperature | reference_T (from PartialMedium) | 298.15 | Reference temperature of Medium: default 25 deg Celsius |
| MassFraction[nX] | reference_X (from PartialMedium) | fill(1/nX, nX) | Default mass fractions of medium |
| AbsolutePressure | p_default (from PartialMedium) | 101325 | Default value for pressure of medium (for initialization) |
| Temperature | T_default (from PartialMedium) | Modelica.Units.Conversions.from_degC(20) | Default value for temperature of medium (for initialization) |
| SpecificEnthalpy | h_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_X | Default 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) |
| Integer | nS (from PartialMedium) | size(substanceNames, 1) | Number of substances |
| Integer | nX (from PartialMedium) | nS | Number of mass fractions |
| Integer | nXi (from PartialMedium) | if fixedX then 0 else if reducedX then nS - 1 else nS | Number of structurally independent mass fractions (see docu for details) |
| Integer | nC (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 |
| Boolean | enthalpyOfT (from TableBased) | true | True if enthalpy is approximated as a function of T only, (p-dependence neglected) |
| Boolean | densityOfT (from TableBased) | size(tableDensity, 1) > 1 | True if density is a function of temperature |
| SI.Temperature | T_min (from TableBased) | Minimum temperature valid for medium model | |
| SI.Temperature | T_max (from TableBased) | Maximum temperature valid for medium model | |
| Temperature | T0 (from TableBased) | 273.15 | Reference Temperature |
| SpecificEnthalpy | h0 (from TableBased) | 0 | Reference enthalpy at T0, reference_p |
| SpecificEntropy | s0 (from TableBased) | 0 | Reference entropy at T0, reference_p |
| MolarMass | MM_const (from TableBased) | 0.1 | Molar mass |
| Integer | npol (from TableBased) | 2 | Degree of polynomial used for fitting |
| Integer | npolDensity (from TableBased) | npol | Degree of polynomial used for fitting rho(T) |
| Integer | npolHeatCapacity (from TableBased) | npol | Degree of polynomial used for fitting Cp(T) |
| Integer | npolViscosity (from TableBased) | npol | Degree of polynomial used for fitting eta(T) |
| Integer | npolVaporPressure (from TableBased) | npol | Degree of polynomial used for fitting pVap(T) |
| Integer | npolConductivity (from TableBased) | npol | Degree of polynomial used for fitting lambda(T) |
| Integer | neta (from TableBased) | size(tableViscosity, 1) | Number of data points for viscosity |
| Real | tableDensity (from TableBased) | Table for rho(T) | |
| Real | tableHeatCapacity (from TableBased) | Table for Cp(T) | |
| Real | tableViscosity (from TableBased) | Table for eta(T) | |
| Real | tableVaporPressure (from TableBased) | Table for pVap(T) | |
| Real | tableConductivity (from TableBased) | Table for lambda(T) | |
| Boolean | TinK (from TableBased) | True if T[K],Kelvin used for table temperatures | |
| Boolean | hasDensity (from TableBased) | not (size(tableDensity, 1) == 0) | True if table tableDensity is present |
| Boolean | hasHeatCapacity (from TableBased) | not (size(tableHeatCapacity, 1) == 0) | True if table tableHeatCapacity is present |
| Boolean | hasViscosity (from TableBased) | not (size(tableViscosity, 1) == 0) | True if table tableViscosity is present |
| Boolean | hasVaporPressure (from TableBased) | not (size(tableVaporPressure, 1) == 0) | True if table tableVaporPressure is present |
| Real[neta] | invTK (from TableBased) | if size(tableViscosity, 1) > 0 then (if TinK then 1./tableViscosity[:, 1] else 1./Cv.from_degC(tableViscosity[:, 1])) else fill(0, neta) | |
| Real[:] | poly_rho (from TableBased) | if hasDensity then Polynomials.fitting(tableDensity[:, 1], tableDensity[:, 2], npolDensity) else zeros(npolDensity + 1) | |
| Real[:] | poly_Cp (from TableBased) | if hasHeatCapacity then Polynomials.fitting(tableHeatCapacity[:, 1], tableHeatCapacity[:, 2], npolHeatCapacity) else zeros(npolHeatCapacity + 1) | |
| Real[:] | poly_eta (from TableBased) | if hasViscosity then Polynomials.fitting(invTK, Math.log(tableViscosity[:, 2]), npolViscosity) else zeros(npolViscosity + 1) | |
| Real[:] | poly_pVap (from TableBased) | if hasVaporPressure then Polynomials.fitting(tableVaporPressure[:, 1], tableVaporPressure[:, 2], npolVaporPressure) else zeros(npolVaporPressure + 1) | |
| Real[:] | poly_lam (from TableBased) | if size(tableConductivity, 1) > 0 then Polynomials.fitting(tableConductivity[:, 1], tableConductivity[:, 2], npolConductivity) else zeros(npolConductivity + 1) |