1,2-Propylene glycol, 47% mixture with water

Extends from TableBased (Incompressible medium properties based on tables).

Name | Description |
---|---|

Inherited | |

enthalpyOfT=true | True if enthalpy is approximated as a function of T only, (p-dependence neglected) |

densityOfT=size(tableDensity, 1) > 1 | True if density is a function of temperature |

T_min=Cv.from_degC(-30) | Minimum temperature valid for medium model |

T_max=Cv.from_degC(100) | Maximum temperature valid for medium model |

T0=273.15 | Reference Temperature |

h0=0 | Reference enthalpy at T0, reference_p |

s0=0 | Reference entropy at T0, reference_p |

MM_const=0.1 | Molar mass |

npol=2 | Degree of polynomial used for fitting |

npolDensity=npol | Degree of polynomial used for fitting rho(T) |

npolHeatCapacity=npol | Degree of polynomial used for fitting Cp(T) |

npolViscosity=npol | Degree of polynomial used for fitting eta(T) |

npolVaporPressure=npol | Degree of polynomial used for fitting pVap(T) |

npolConductivity=npol | Degree of polynomial used for fitting lambda(T) |

neta=size(tableViscosity, 1) | Number of data points for viscosity |

tableDensity=[-30, 1066; -20, 1062; -10, 1058; 0, 1054; 20, 1044; 40, 1030; 60, 1015; 80, 999; 100, 984] | Table for rho(T) |

tableHeatCapacity=[-30, 3450; -20, 3490; -10, 3520; 0, 3560; 20, 3620; 40, 3690; 60, 3760; 80, 3820; 100, 3890] | Table for Cp(T) |

tableViscosity=[-30, 0.160; -20, 0.0743; -10, 0.0317; 0, 0.0190; 20, 0.00626; 40, 0.00299; 60, 0.00162; 80, 0.00110; 100, 0.00081] | Table for eta(T) |

tableVaporPressure=[0, 500; 20, 1.9e3; 40, 5.3e3; 60, 16e3; 80, 37e3; 100, 80e3] | Table for pVap(T) |

tableConductivity=[-30, 0.397; -20, 0.396; -10, 0.395; 0, 0.395; 20, 0.394; 40, 0.393; 60, 0.392; 80, 0.391; 100, 0.390] | Table for lambda(T) |

TinK=false | True if T[K],Kelvin used for table temperatures |

hasDensity=not (size(tableDensity, 1) == 0) | True if table tableDensity is present |

hasHeatCapacity=not (size(tableHeatCapacity, 1) == 0) | True if table tableHeatCapacity is present |

hasViscosity=not (size(tableViscosity, 1) == 0) | True if table tableViscosity is present |

hasVaporPressure=not (size(tableVaporPressure, 1) == 0) | True if table tableVaporPressure is present |

invTK=if size(tableViscosity, 1) > 0 then (if TinK then 1 ./ tableViscosity[:, 1] else 1 ./ Cv.from_degC(tableViscosity[:, 1])) else fill(0, neta) | |

poly_rho=if hasDensity then Polynomials.fitting(tableDensity[:, 1], tableDensity[:, 2], npolDensity) else zeros(npolDensity + 1) | |

poly_Cp=if hasHeatCapacity then Polynomials.fitting(tableHeatCapacity[:, 1], tableHeatCapacity[:, 2], npolHeatCapacity) else zeros(npolHeatCapacity + 1) | |

poly_eta=if hasViscosity then Polynomials.fitting(invTK, Math.log(tableViscosity[:, 2]), npolViscosity) else zeros(npolViscosity + 1) | |

poly_pVap=if hasVaporPressure then Polynomials.fitting(tableVaporPressure[:, 1], tableVaporPressure[:, 2], npolVaporPressure) else zeros(npolVaporPressure + 1) | |

poly_lam=if size(tableConductivity, 1) > 0 then Polynomials.fitting(tableConductivity[:, 1], tableConductivity[:, 2], npolConductivity) else zeros(npolConductivity + 1) | |

invertTemp | Function to invert temperatures |

BaseProperties | Base properties of T dependent medium |

setState_pTX | Returns state record, given pressure and temperature |

setState_dTX | Returns state record, given pressure and temperature |

setState_pT | Returns state record as function of p and T |

setState_phX | Returns state record, given pressure and specific enthalpy |

setState_ph | Returns state record as function of p and h |

setState_psX | Returns state record, given pressure and specific entropy |

setState_ps | Returns state record as function of p and s |

setSmoothState | Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |

specificHeatCapacityCv | Specific heat capacity at constant volume (or pressure) of medium |

specificHeatCapacityCp | Specific heat capacity at constant volume (or pressure) of medium |

dynamicViscosity | Return dynamic viscosity as a function of the thermodynamic state record |

thermalConductivity | Return thermal conductivity as a function of the thermodynamic state record |

s_T | Compute specific entropy |

specificEntropy | Return specific entropy as a function of the thermodynamic state record |

h_T | Compute specific enthalpy from temperature |

h_T_der | Compute specific enthalpy from temperature |

h_pT | Compute specific enthalpy from pressure and temperature |

density_T | Return density as function of temperature |

temperature | Return temperature as a function of the thermodynamic state record |

pressure | Return pressure as a function of the thermodynamic state record |

density | Return density as a function of the thermodynamic state record |

specificEnthalpy | Return specific enthalpy as a function of the thermodynamic state record |

specificInternalEnergy | Return specific internal energy as a function of the thermodynamic state record |

T_ph | Compute temperature from pressure and specific enthalpy |

T_ps | Compute temperature from pressure and specific enthalpy |

specificEnthalpyOfT | Return specific enthalpy from pressure and temperature, taking the flag enthalpyOfT into account |

ThermoStates=if enthalpyOfT then Modelica.Media.Interfaces.Choices.IndependentVariables.T else Modelica.Media.Interfaces.Choices.IndependentVariables.pT | Enumeration type for independent variables |

mediumName="Glycol-Water 47%" | 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=1.013e5 | Reference pressure of Medium: default 1 atmosphere |

reference_T=298.15 | Reference temperature of Medium: default 25 deg Celsius |

reference_X=fill(1/nX, nX) | Default mass fractions of medium |

p_default=101325 | 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 |

FluidConstants | Critical, triple, molecular and other standard data of fluid |

ThermodynamicState | Minimal variable set that is available as input argument to every medium function |

prandtlNumber | Return the Prandtl number |

specificGibbsEnergy | Return specific Gibbs energy |

specificHelmholtzEnergy | Return specific Helmholtz energy |

heatCapacity_cp | Alias for deprecated name |

heatCapacity_cv | Alias for deprecated name |

isentropicExponent | Return isentropic exponent |

isentropicEnthalpy | Return isentropic enthalpy |

velocityOfSound | Return velocity of sound |

isobaricExpansionCoefficient | Return overall the isobaric expansion coefficient beta |

beta | Alias for isobaricExpansionCoefficient for user convenience |

isothermalCompressibility | Return overall the isothermal compressibility factor |

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 |

density_derp_T | Return density derivative w.r.t. pressure at const temperature |

density_derT_p | Return density derivative w.r.t. temperature at constant pressure |

density_derX | Return density derivative w.r.t. mass fraction |

molarMass | Return the molar mass of the medium |

specificEnthalpy_pTX | Return specific enthalpy from p, T, and X or Xi |

specificEntropy_pTX | Return specific enthalpy from p, T, and X or Xi |

density_pTX | Return density from p, T, and X or Xi |

temperature_phX | Return temperature from p, h, 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 |