Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater
EthyleneGlycolWater with publicly accessible medium functions
Information
Media implementation that extends Buildings.Media.Antifreeze in order to make its thermophysical property functions publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Buildings.Media.Antifreeze.EthyleneGlycolWater (Package with model for ethylene glycol - water with constant properties).
Package Content
| Name | Description |
|---|---|
| Evaluate density of antifreeze-water mixture | |
| Evaluate dynamic viscosity of antifreeze-water mixture | |
| Evaluate temperature of fusion of antifreeze-water mixture | |
| Evaluate specific heat capacity of antifreeze-water mixture | |
| Evaluate thermal conductivity of antifreeze-water mixture | |
| Inherited | |
| property_T | Temperature for evaluation of constant fluid properties |
| X_a | Mass fraction of propylene glycol in water |
| Base properties | |
| X_a_min=0. | Minimum allowed mass fraction of ethylene glycol in water |
| X_a_max=0.6 | Maximum allowed mass fraction of propylene glycol in water |
| simpleEthyleneGlycolWaterConstants | |
| proCoe | Coefficients for evaluation of thermo-physical properties |
| Evaluate density of antifreeze-water mixture | |
| Evaluate dynamic viscosity of antifreeze-water mixture | |
| Evaluate temperature of fusion of antifreeze-water mixture | |
| Evaluates thermophysical property from 2-variable polynomial | |
| Evaluate specific heat capacity of antifreeze-water mixture | |
| Evaluate thermal conductivity of antifreeze-water mixture | |
| cp_const=specificHeatCapacityCp_TX_a(T=property_T, X_a=X_a) | Constant specific heat capacity at constant pressure |
| cv_const=cp_const | Constant specific heat capacity at constant volume |
| d_const=density_TX_a(T=property_T, X_a=X_a) | Constant density |
| eta_const=dynamicViscosity_TX_a(T=property_T, X_a=X_a) | Constant dynamic viscosity |
| lambda_const=thermalConductivity_TX_a(T=property_T, X_a=X_a) | Constant thermal conductivity |
| a_const=1484 | Constant velocity of sound |
| T_min=fusionTemperature_TX_a(T=property_T, X_a=X_a) | Minimum temperature valid for medium model |
| T_max=Modelica.Units.Conversions.from_degC(100) | Maximum temperature valid for medium model |
| T0=273.15 | Zero enthalpy temperature |
| MM_const=(X_a/simpleEthyleneGlycolWaterConstants[1].molarMass + (1 - X_a)/0.018015268)^(-1) | Molar mass |
| fluidConstants=simpleEthyleneGlycolWaterConstants | Fluid constants |
| Thermodynamic state | |
| Return thermodynamic state from p, T, and X or Xi | |
| Return thermodynamic state from p, h, and X or Xi | |
| Return thermodynamic state from p, s, and X or Xi | |
| Return thermodynamic state from d, T, and X or Xi | |
| Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b | |
| Return dynamic viscosity | |
| Return thermal conductivity | |
| Return pressure | |
| Return temperature | |
| Return density | |
| Return specific enthalpy | |
| Return specific heat capacity at constant pressure | |
| Return specific heat capacity at constant volume | |
| Return isentropic exponent | |
| Return velocity of sound | |
| Return specific enthalpy from p, T, and X or Xi | |
| Return temperature from p, h, and X or Xi | |
| Return density from p, h, and X or Xi | |
| Return specific internal energy | |
| Return specific entropy | |
| Return specific Gibbs energy | |
| Return specific Helmholtz energy | |
| Return isentropic enthalpy | |
| Returns overall the isobaric expansion coefficient beta | |
| Returns overall the isothermal compressibility factor | |
| Returns the partial derivative of density with respect to pressure at constant temperature | |
| Returns the partial derivative of density with respect to temperature at constant pressure | |
| Returns the partial derivative of density with respect to mass fractions at constant pressure and temperature | |
| Return the molar mass of the medium | |
| Return thermodynamic state from p and T | |
| Return thermodynamic state from p and h | |
| Return thermodynamic state from p and s | |
| Return thermodynamic state from d and T | |
| Return density from p and h | |
| Return temperature from p and h | |
| Return pressure from d and T | |
| Return specific enthalpy from d and T | |
| Return specific enthalpy from p and s | |
| Return temperature from p and s | |
| Return density from p and s | |
| Return specific enthalpy from p and T | |
| Return density from p and T | |
| ThermoStates=Modelica.Media.Interfaces.Choices.IndependentVariables.pT | Enumeration type for independent variables |
| mediumName="EthyleneGlycolWater(X_a = " + String(X_a) + ", property_T = " + String(property_T) + ")" | Name of the medium |
| substanceNames={mediumName} | 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=true | = 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=true | = true if medium contains the equation X = reference_X |
| reference_p=300000 | Reference pressure of Medium: default 1 atmosphere |
| reference_T=273.15 | Reference temperature of Medium: default 25 deg Celsius |
| reference_X={1} | Default mass fractions of medium |
| p_default=300000 | Default value for pressure of medium (for initialization) |
| T_default=Modelica.Units.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 |
| Critical, triple, molecular and other standard data of fluid | |
| Return the Prandtl number | |
| Alias for deprecated name | |
| Alias for deprecated name | |
| Alias for isobaricExpansionCoefficient for user convenience | |
| Alias of isothermalCompressibility for user convenience | |
| Return density derivative w.r.t. pressure at const specific enthalpy | |
| Return density derivative w.r.t. specific enthalpy at constant pressure | |
| Return specific enthalpy from p, T, and X or Xi | |
| Return density from p, T, and X or Xi | |
| Return temperature from p,s, and X or Xi | |
| Return density from p, s, and X or Xi | |
| Return specific enthalpy from p, s, and X or Xi | |
| Type for mass flow rate with medium specific attributes | |
| Type for absolute pressure with medium specific attributes | |
| Type for density with medium specific attributes | |
| Type for dynamic viscosity with medium specific attributes | |
| Type for enthalpy flow rate with medium specific attributes | |
| Type for mass fraction with medium specific attributes | |
| Type for mole fraction with medium specific attributes | |
| Type for molar mass with medium specific attributes | |
| Type for molar volume with medium specific attributes | |
| Type for isentropic exponent with medium specific attributes | |
| Type for specific energy with medium specific attributes | |
| Type for specific internal energy with medium specific attributes | |
| Type for specific enthalpy with medium specific attributes | |
| Type for specific entropy with medium specific attributes | |
| Type for specific heat capacity with medium specific attributes | |
| Type for surface tension with medium specific attributes | |
| Type for temperature with medium specific attributes | |
| Type for thermal conductivity with medium specific attributes | |
| Type for Prandtl number with medium specific attributes | |
| Type for velocity of sound with medium specific attributes | |
| Type for unspecified, mass-specific property transported by flow | |
| Type for conserved integral of unspecified, mass specific property | |
| Type for flow rate of unspecified, mass-specific property | |
| Type for isobaric expansion coefficient with medium specific attributes | |
| Type for dipole moment with medium specific attributes | |
| Type for partial derivative of density with respect to pressure with medium specific attributes | |
| Type for partial derivative of density with respect to enthalpy with medium specific attributes | |
| Type for partial derivative of enthalpy with respect to pressure with medium specific attributes | |
| Type for partial derivative of density with respect to temperature with medium specific attributes | |
| Type for partial derivative of temperature with respect to pressure with medium specific attributes | |
| Saturation properties of two phase medium | |
| Validity limits for fluid model | |
| Phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g., interactive use | |
| The most basic version of a record used in several degrees of detail | |
| The ideal gas version of a record used in several degrees of detail | |
| The two phase fluid version of a record used in several degrees of detail | |
Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater.testDensity_TX_a
Evaluate density of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.EthyleneGlycolWater.density_TX_a publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Temperature | T | Temperature of antifreeze-water mixture [K] | |
| MassFraction | X_a | Mass fraction of antifreeze [1] |
Outputs
| Type | Name | Description |
|---|---|---|
| Density | d | Density of antifreeze-water mixture [kg/m3] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater.testDynamicViscosity_TX_a
Evaluate dynamic viscosity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.EthyleneGlycolWater.dynamicViscosity_TX_a publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Temperature | T | Temperature of antifreeze-water mixture [K] | |
| MassFraction | X_a | Mass fraction of antifreeze [1] |
Outputs
| Type | Name | Description |
|---|---|---|
| DynamicViscosity | eta | Dynamic Viscosity of antifreeze-water mixture [Pa.s] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater.testFusionTemperature_TX_a
Evaluate temperature of fusion of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.EthyleneGlycolWater.fusionTemperature_TX_a publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Temperature | T | Temperature of antifreeze-water mixture [K] | |
| MassFraction | X_a | Mass fraction of antifreeze [1] |
Outputs
| Type | Name | Description |
|---|---|---|
| Temperature | Tf | Temperature of fusion of antifreeze-water mixture [K] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater.testSpecificHeatCapacityCp_TX_a
Evaluate specific heat capacity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.EthyleneGlycolWater.specificHeatCapacityCp_TX_a publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Temperature | T | Temperature of antifreeze-water mixture [K] | |
| MassFraction | X_a | Mass fraction of antifreeze [1] |
Outputs
| Type | Name | Description |
|---|---|---|
| SpecificHeatCapacity | cp | Specific heat capacity of antifreeze-water mixture [J/(kg.K)] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.EthyleneGlycolWater.testThermalConductivity_TX_a
Evaluate thermal conductivity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.EthyleneGlycolWater.thermalConductivity_TX_a publicly accessible as needed for the validation model Buildings.Media.Antifreeze.Validation.BaseClasses.FluidProperties.
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Temperature | T | Temperature of antifreeze-water mixture [K] | |
| MassFraction | X_a | Mass fraction of antifreeze [1] |
Outputs
| Type | Name | Description |
|---|---|---|
| ThermalConductivity | lambda | Thermal conductivity of antifreeze-water mixture [W/(m.K)] |