Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater
PropyleneGlycolWater 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.PropyleneGlycolWater (Package with model for propylene glycol - water with constant properties).
Package Content
Name | Description |
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Evaluate density of antifreeze-water mixture |
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Evaluate dynamic viscosity of antifreeze-water mixture |
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Evaluate temperature of fusion of antifreeze-water mixture |
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Evaluate specific heat capacity of antifreeze-water mixture |
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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 |
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Base properties |
X_a_min=0. | Minimum allowed mass fraction of propylene glycol in water |
X_a_max=0.6 | Maximum allowed mass fraction of propylene glycol in water |
simplePropyleneGlycolWaterConstants | |
proCoe | Coefficients for evaluation of thermo-physical properties |
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Evaluate density of antifreeze-water mixture |
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Evaluate dynamic viscosity of antifreeze-water mixture |
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Evaluate temperature of fusion of antifreeze-water mixture |
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Evaluates thermophysical property from 2-variable polynomial |
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Evaluate specific heat capacity of antifreeze-water mixture |
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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.SIunits.Conversions.from_degC(100) | Maximum temperature valid for medium model |
T0=273.15 | Zero enthalpy temperature |
MM_const=(X_a/simplePropyleneGlycolWaterConstants[1].molarMass + (1 - X_a)/0.018015268)^(-1) | Molar mass |
fluidConstants=simplePropyleneGlycolWaterConstants | Fluid constants |
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Thermodynamic state |
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Return thermodynamic state from p, T, and X or Xi |
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Return thermodynamic state from p, h, and X or Xi |
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Return thermodynamic state from p, s, and X or Xi |
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Return thermodynamic state from d, T, and X or Xi |
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Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |
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Return dynamic viscosity |
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Return thermal conductivity |
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Return pressure |
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Return temperature |
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Return density |
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Return specific enthalpy |
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Return specific heat capacity at constant pressure |
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Return specific heat capacity at constant volume |
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Return isentropic exponent |
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Return velocity of sound |
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Return specific enthalpy from p, T, and X or Xi |
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Return temperature from p, h, and X or Xi |
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Return density from p, h, and X or Xi |
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Return specific internal energy |
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Return specific entropy |
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Return specific Gibbs energy |
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Return specific Helmholtz energy |
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Return isentropic enthalpy |
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Returns overall the isobaric expansion coefficient beta |
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Returns overall the isothermal compressibility factor |
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Returns the partial derivative of density with respect to pressure at constant temperature |
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Returns the partial derivative of density with respect to temperature at constant pressure |
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Returns the partial derivative of density with respect to mass fractions at constant pressure and temperature |
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Return the molar mass of the medium |
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Return thermodynamic state from p and T |
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Return thermodynamic state from p and h |
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Return thermodynamic state from p and s |
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Return thermodynamic state from d and T |
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Return density from p and h |
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Return temperature from p and h |
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Return pressure from d and T |
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Return specific enthalpy from d and T |
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Return specific enthalpy from p and s |
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Return temperature from p and s |
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Return density from p and s |
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Return specific enthalpy from p and T |
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Return density from p and T |
ThermoStates=Modelica.Media.Interfaces.Choices.IndependentVariables.pT | Enumeration type for independent variables |
mediumName="PropyleneGlycolWater(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.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) |
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 |
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Critical, triple, molecular and other standard data of fluid |
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Return the Prandtl number |
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Alias for deprecated name |
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Alias for deprecated name |
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Alias for isobaricExpansionCoefficient for user convenience |
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Alias of isothermalCompressibility for user convenience |
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Return density derivative w.r.t. pressure at const specific enthalpy |
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Return density derivative w.r.t. specific enthalpy at constant pressure |
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Return specific enthalpy from p, T, and X or Xi |
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Return density from p, T, and X or Xi |
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Return temperature from p,s, and X or Xi |
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Return density from p, s, and X or Xi |
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Return specific enthalpy from p, s, and X or Xi |
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Type for mass flow rate with medium specific attributes |
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Type for absolute pressure with medium specific attributes |
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Type for density with medium specific attributes |
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Type for dynamic viscosity with medium specific attributes |
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Type for enthalpy flow rate with medium specific attributes |
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Type for mass fraction with medium specific attributes |
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Type for mole fraction with medium specific attributes |
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Type for molar mass with medium specific attributes |
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Type for molar volume with medium specific attributes |
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Type for isentropic exponent with medium specific attributes |
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Type for specific energy with medium specific attributes |
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Type for specific internal energy with medium specific attributes |
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Type for specific enthalpy with medium specific attributes |
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Type for specific entropy with medium specific attributes |
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Type for specific heat capacity with medium specific attributes |
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Type for surface tension with medium specific attributes |
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Type for temperature with medium specific attributes |
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Type for thermal conductivity with medium specific attributes |
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Type for Prandtl number with medium specific attributes |
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Type for velocity of sound with medium specific attributes |
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Type for unspecified, mass-specific property transported by flow |
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Type for conserved integral of unspecified, mass specific property |
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Type for flow rate of unspecified, mass-specific property |
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Type for isobaric expansion coefficient with medium specific attributes |
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Type for dipole moment with medium specific attributes |
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Type for partial derivative of density with respect to pressure with medium specific attributes |
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Type for partial derivative of density with respect to enthalpy with medium specific attributes |
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Type for partial derivative of enthalpy with respect to pressure with medium specific attributes |
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Type for partial derivative of density with respect to temperature with medium specific attributes |
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Type for partial derivative of temperature with respect to pressure with medium specific attributes |
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Saturation properties of two phase medium |
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Validity limits for fluid model |
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Phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g., interactive use |
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The most basic version of a record used in several degrees of detail |
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The ideal gas version of a record used in several degrees of detail |
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The two phase fluid version of a record used in several degrees of detail |
Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater.testDensity_TX_a
Evaluate density of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.PropyleneGlycolWater.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 |
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Density | d | Density of antifreeze-water mixture [kg/m3] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater.testDynamicViscosity_TX_a
Evaluate dynamic viscosity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.PropyleneGlycolWater.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 |
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DynamicViscosity | eta | Dynamic Viscosity of antifreeze-water mixture [Pa.s] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater.testFusionTemperature_TX_a
Evaluate temperature of fusion of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.PropyleneGlycolWater.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 |
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Temperature | Tf | Temperature of fusion of antifreeze-water mixture [K] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater.testSpecificHeatCapacityCp_TX_a
Evaluate specific heat capacity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.PropyleneGlycolWater.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 |
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SpecificHeatCapacity | cp | Specific heat capacity of antifreeze-water mixture [J/(kg.K)] |
Modelica definition
Buildings.Media.Antifreeze.Validation.BaseClasses.PropyleneGlycolWater.testThermalConductivity_TX_a
Evaluate thermal conductivity of antifreeze-water mixture
Information
Function that makes Buildings.Media.Antifreeze.PropyleneGlycolWater.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 |
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ThermalConductivity | lambda | Thermal conductivity of antifreeze-water mixture [W/(m.K)] |