Modelica.Media.Incompressible.TableBased

Incompressible medium properties based on tables

Information


This is the base package for medium models of incompressible fluids based on tables. The minimal data to provide for a useful medium description is tables of density and heat capacity as functions of temperature.

It should be noted that incompressible media only have 1 state per control volume (usually T), but have both T and p as inputs for fully correct properties. The error of using only T-dependent properties is small, therefore a Boolean flag enthalpyOfT exists. If it is true, the enumeration Choices.independentVariables is set to Choices.independentVariables.T otherwise it is set to Choices.independentVariables.pT.

Using the package TableBased

To implement a new medium model, create a package that extends TableBased and provides one or more of the constant tables:

tableDensity        = [T, d];
tableHeatCapacity   = [T, Cp];
tableConductivity   = [T, lam];
tableViscosity      = [T, eta];
tableVaporPressure  = [T, pVap];

The table data is used to fit constant polynomials of order npol, the temperature data points do not need to be same for different properties. Properties like enthalpy, inner energy and entropy are calculated consistently from integrals and derivatives of d(T) and Cp(T). The minimal data for a useful medium model is thus density and heat capacity. Transport properties and vapor pressure are optional, if the data tables are empty the corresponding function calls can not be used.

Extends from Modelica.Media.Interfaces.PartialMedium (Partial medium properties (base package of all media packages)).

Package Content

NameDescription
enthalpyOfT=trueTrue if enthalpy is approximated as a function of T only, (p-dependence neglected)
densityOfT=size(tableDensity, 1) > 1True if density is a function of temperature
T_minMinimum temperature valid for medium model
T_maxMaximum temperature valid for medium model
T0=273.15Reference Temperature
h0=0Reference enthalpy at T0, reference_p
s0=0Reference entropy at T0, reference_p
MM_const=0.1Molar mass
npol=2Degree of polynomial used for fitting
npolDensity=npolDegree of polynomial used for fitting rho(T)
npolHeatCapacity=npolDegree of polynomial used for fitting Cp(T)
npolViscosity=npolDegree of polynomial used for fitting eta(T)
npolVaporPressure=npolDegree of polynomial used for fitting pVap(T)
npolConductivity=npolDegree of polynomial used for fitting lambda(T)
neta=size(tableViscosity, 1)Number of data points for viscosity
tableDensityTable for rho(T)
tableHeatCapacityTable for Cp(T)
tableViscosityTable for eta(T)
tableVaporPressureTable for pVap(T)
tableConductivityTable for lambda(T)
TinKTrue 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 Poly.fitting(tableDensity[:, 1], tableDensity[:, 2], npolDensity) else zeros(npolDensity + 1) 
poly_Cp=if hasHeatCapacity then Poly.fitting(tableHeatCapacity[:, 1], tableHeatCapacity[:, 2], npolHeatCapacity) else zeros(npolHeatCapacity + 1) 
poly_eta=if hasViscosity then Poly.fitting(invTK, Math.log(tableViscosity[:, 2]), npolViscosity) else zeros(npolViscosity + 1) 
poly_pVap=if hasVaporPressure then Poly.fitting(tableVaporPressure[:, 1], tableVaporPressure[:, 2], npolVaporPressure) else zeros(npolVaporPressure + 1) 
poly_lam=if size(tableConductivity, 1) > 0 then Poly.fitting(tableConductivity[:, 1], tableConductivity[:, 2], npolConductivity) else zeros(npolConductivity + 1) 
Modelica.Media.Incompressible.TableBased.invertTemp invertTemp Function to invert temperatures
Modelica.Media.Incompressible.TableBased.BaseProperties BaseProperties Base properties of T dependent medium
Modelica.Media.Incompressible.TableBased.setState_pTX setState_pTX Returns state record, given pressure and temperature
Modelica.Media.Incompressible.TableBased.setState_dTX setState_dTX Returns state record, given pressure and temperature
Modelica.Media.Incompressible.TableBased.setState_pT setState_pT Returns state record as function of p and T
Modelica.Media.Incompressible.TableBased.setState_phX setState_phX Returns state record, given pressure and specific enthalpy
Modelica.Media.Incompressible.TableBased.setState_ph setState_ph Returns state record as function of p and h
Modelica.Media.Incompressible.TableBased.setState_psX setState_psX Returns state record, given pressure and specific entropy
Modelica.Media.Incompressible.TableBased.setState_ps setState_ps Returns state record as function of p and s
Modelica.Media.Incompressible.TableBased.setSmoothState setSmoothState Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b
Modelica.Media.Incompressible.TableBased.specificHeatCapacityCv specificHeatCapacityCv Specific heat capacity at constant volume (or pressure) of medium
Modelica.Media.Incompressible.TableBased.specificHeatCapacityCp specificHeatCapacityCp Specific heat capacity at constant volume (or pressure) of medium
Modelica.Media.Incompressible.TableBased.dynamicViscosity dynamicViscosity Return dynamic viscosity as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.thermalConductivity thermalConductivity Return thermal conductivity as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.s_T s_T Compute specific entropy
Modelica.Media.Incompressible.TableBased.specificEntropy specificEntropy Return specific entropy as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.h_T h_T Compute specific enthalpy from temperature
Modelica.Media.Incompressible.TableBased.h_T_der h_T_der Compute specific enthalpy from temperature
Modelica.Media.Incompressible.TableBased.h_pT h_pT Compute specific enthalpy from pressure and temperature
Modelica.Media.Incompressible.TableBased.density_T density_T Return density as function of temperature
Modelica.Media.Incompressible.TableBased.temperature temperature Return temperature as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.pressure pressure Return pressure as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.density density Return density as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.specificEnthalpy specificEnthalpy Return specific enthalpy as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.specificInternalEnergy specificInternalEnergy Return specific internal energy as a function of the thermodynamic state record
Modelica.Media.Incompressible.TableBased.T_ph T_ph Compute temperature from pressure and specific enthalpy
Modelica.Media.Incompressible.TableBased.T_ps T_ps Compute temperature from pressure and specific enthalpy
Modelica.Media.Incompressible.TableBased.Polynomials_Temp Polynomials_Temp Temporary Functions operating on polynomials (including polynomial fitting); only to be used in Modelica.Media.Incompressible.TableBased
Inherited
ThermoStatesEnumeration type for independent variables
mediumName="unusablePartialMedium"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, 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=false= true if medium contains the equation X = reference_X
reference_p=101325Reference pressure of Medium: default 1 atmosphere
reference_T=298.15Reference temperature of Medium: default 25 deg Celsius
reference_X=fill(1/nX, nX)Default mass fractions of medium
p_default=101325Default 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_XDefault value for mass fractions of medium (for initialization)
nS=size(substanceNames, 1)Number of substances
nX=nSNumber of mass fractions
nXi=if fixedX then 0 else if reducedX then nS - 1 else nSNumber 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
Modelica.Media.Interfaces.PartialMedium.FluidConstants FluidConstants Critical, triple, molecular and other standard data of fluid
Modelica.Media.Interfaces.PartialMedium.ThermodynamicState ThermodynamicState Minimal variable set that is available as input argument to every medium function
Modelica.Media.Interfaces.PartialMedium.prandtlNumber prandtlNumber Return the Prandtl number
Modelica.Media.Interfaces.PartialMedium.specificGibbsEnergy specificGibbsEnergy Return specific Gibbs energy
Modelica.Media.Interfaces.PartialMedium.specificHelmholtzEnergy specificHelmholtzEnergy Return specific Helmholtz energy
Modelica.Media.Interfaces.PartialMedium.heatCapacity_cp heatCapacity_cp Alias for deprecated name
Modelica.Media.Interfaces.PartialMedium.heatCapacity_cv heatCapacity_cv Alias for deprecated name
Modelica.Media.Interfaces.PartialMedium.isentropicExponent isentropicExponent Return isentropic exponent
Modelica.Media.Interfaces.PartialMedium.isentropicEnthalpy isentropicEnthalpy Return isentropic enthalpy
Modelica.Media.Interfaces.PartialMedium.velocityOfSound velocityOfSound Return velocity of sound
Modelica.Media.Interfaces.PartialMedium.isobaricExpansionCoefficient isobaricExpansionCoefficient Return overall the isobaric expansion coefficient beta
Modelica.Media.Interfaces.PartialMedium.beta beta Alias for isobaricExpansionCoefficient for user convenience
Modelica.Media.Interfaces.PartialMedium.isothermalCompressibility isothermalCompressibility Return overall the isothermal compressibility factor
Modelica.Media.Interfaces.PartialMedium.kappa kappa Alias of isothermalCompressibility for user convenience
Modelica.Media.Interfaces.PartialMedium.density_derp_h density_derp_h Return density derivative w.r.t. pressure at const specific enthalpy
Modelica.Media.Interfaces.PartialMedium.density_derh_p density_derh_p Return density derivative w.r.t. specific enthalpy at constant pressure
Modelica.Media.Interfaces.PartialMedium.density_derp_T density_derp_T Return density derivative w.r.t. pressure at const temperature
Modelica.Media.Interfaces.PartialMedium.density_derT_p density_derT_p Return density derivative w.r.t. temperature at constant pressure
Modelica.Media.Interfaces.PartialMedium.density_derX density_derX Return density derivative w.r.t. mass fraction
Modelica.Media.Interfaces.PartialMedium.molarMass molarMass Return the molar mass of the medium
Modelica.Media.Interfaces.PartialMedium.specificEnthalpy_pTX specificEnthalpy_pTX Return specific enthalpy from p, T, and X or Xi
Modelica.Media.Interfaces.PartialMedium.specificEntropy_pTX specificEntropy_pTX Return specific enthalpy from p, T, and X or Xi
Modelica.Media.Interfaces.PartialMedium.density_pTX density_pTX Return density from p, T, and X or Xi
Modelica.Media.Interfaces.PartialMedium.temperature_phX temperature_phX Return temperature from p, h, and X or Xi
Modelica.Media.Interfaces.PartialMedium.density_phX density_phX Return density from p, h, and X or Xi
Modelica.Media.Interfaces.PartialMedium.temperature_psX temperature_psX Return temperature from p,s, and X or Xi
Modelica.Media.Interfaces.PartialMedium.density_psX density_psX Return density from p, s, and X or Xi
Modelica.Media.Interfaces.PartialMedium.specificEnthalpy_psX 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
Modelica.Media.Interfaces.Types.SaturationProperties SaturationProperties Saturation properties of two phase medium
Modelica.Media.Interfaces.Types.FluidLimits 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
Modelica.Media.Interfaces.Types.Basic Basic The most basic version of a record used in several degrees of detail
Modelica.Media.Interfaces.Types.IdealGas IdealGas The ideal gas version of a record used in several degrees of detail
Modelica.Media.Interfaces.Types.TwoPhase TwoPhase The two phase fluid version of a record used in several degrees of detail

Modelica.Media.Incompressible.TableBased.invertTemp Modelica.Media.Incompressible.TableBased.invertTemp

Function to invert temperatures

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
table[:]Table temperature data
TinkFlag for Celsius or Kelvin

Outputs

NameDescription
invTable[size(table, 1)]Inverted temperatures

Modelica.Media.Incompressible.TableBased.BaseProperties Modelica.Media.Incompressible.TableBased.BaseProperties

Base properties of T dependent medium

Information


Note that the inner energy neglects the pressure dependence, which is only true for an incompressible medium with d = constant. The neglected term is p-reference_p)/rho*(T/rho)*(partial rho /partial T). This is very small for liquids due to proportionality to 1/d^2, but can be problematic for gases that are modeled incompressible.

It should be noted that incompressible media only have 1 state per control volume (usually T), but have both T and p as inputs for fully correct properties. The error of using only T-dependent properties is small, therefore a Boolean flag enthalpyOfT exists. If it is true, the enumeration Choices.independentVariables is set to Choices.independentVariables.T otherwise it is set to Choices.independentVariables.pT.

Enthalpy is never a function of T only (h = h(T) + (p-reference_p)/d), but the error is also small and non-linear systems can be avoided. In particular, non-linear systems are small and local as opposed to large and over all volumes.

Entropy is calculated as

  s = s0 + integral(Cp(T)/T,dt)

which is only exactly true for a fluid with constant density d=d0.

Extends from (Base properties (p, d, T, h, u, R, MM and, if applicable, X and Xi) of a medium).

Parameters

NameDescription
T_startInitial temperature [K]
standardOrderComponentsIf true, and reducedX = true, the last element of X will be computed from the other ones
p_barAbsolute pressure of medium in [bar] [bar]
Advanced
preferredMediumStates= true if StateSelect.prefer shall be used for the independent property variables of the medium

Modelica.Media.Incompressible.TableBased.setState_pTX Modelica.Media.Incompressible.TableBased.setState_pTX

Returns state record, given pressure and temperature

Information

Extends from (Return thermodynamic state as function of p, T and composition X or Xi).

Inputs

NameDescription
pPressure [Pa]
TTemperature [K]
X[:]Mass fractions [kg/kg]

Outputs

NameDescription
stateThermodynamic state record

Modelica.Media.Incompressible.TableBased.setState_dTX Modelica.Media.Incompressible.TableBased.setState_dTX

Returns state record, given pressure and temperature

Information

Extends from (Return thermodynamic state as function of d, T and composition X or Xi).

Inputs

NameDescription
dDensity [kg/m3]
TTemperature [K]
X[:]Mass fractions [kg/kg]

Outputs

NameDescription
stateThermodynamic state record

Modelica.Media.Incompressible.TableBased.setState_pT Modelica.Media.Incompressible.TableBased.setState_pT

Returns state record as function of p and T

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
TTemperature [K]

Outputs

NameDescription
stateThermodynamic state

Modelica.Media.Incompressible.TableBased.setState_phX Modelica.Media.Incompressible.TableBased.setState_phX

Returns state record, given pressure and specific enthalpy

Information

Extends from (Return thermodynamic state as function of p, h and composition X or Xi).

Inputs

NameDescription
pPressure [Pa]
hSpecific enthalpy [J/kg]
X[:]Mass fractions [kg/kg]

Outputs

NameDescription
stateThermodynamic state record

Modelica.Media.Incompressible.TableBased.setState_ph Modelica.Media.Incompressible.TableBased.setState_ph

Returns state record as function of p and h

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
hSpecific enthalpy [J/kg]

Outputs

NameDescription
stateThermodynamic state

Modelica.Media.Incompressible.TableBased.setState_psX Modelica.Media.Incompressible.TableBased.setState_psX

Returns state record, given pressure and specific entropy

Information

Extends from (Return thermodynamic state as function of p, s and composition X or Xi).

Inputs

NameDescription
pPressure [Pa]
sSpecific entropy [J/(kg.K)]
X[:]Mass fractions [kg/kg]

Outputs

NameDescription
stateThermodynamic state record

Modelica.Media.Incompressible.TableBased.setState_ps Modelica.Media.Incompressible.TableBased.setState_ps

Returns state record as function of p and s

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
sSpecific entropy [J/(kg.K)]

Outputs

NameDescription
stateThermodynamic state

Modelica.Media.Incompressible.TableBased.setSmoothState Modelica.Media.Incompressible.TableBased.setSmoothState

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

Information

Extends from (Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b).

Inputs

NameDescription
xm_flow or dp
state_aThermodynamic state if x > 0
state_bThermodynamic state if x < 0
x_smallSmooth transition in the region -x_small < x < x_small

Outputs

NameDescription
stateSmooth thermodynamic state for all x (continuous and differentiable)

Modelica.Media.Incompressible.TableBased.specificHeatCapacityCv Modelica.Media.Incompressible.TableBased.specificHeatCapacityCv

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

Information

Extends from (Return specific heat capacity at constant volume).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
cvSpecific heat capacity at constant volume [J/(kg.K)]

Modelica.Media.Incompressible.TableBased.specificHeatCapacityCp Modelica.Media.Incompressible.TableBased.specificHeatCapacityCp

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

Information

Extends from (Return specific heat capacity at constant pressure).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
cpSpecific heat capacity at constant pressure [J/(kg.K)]

Modelica.Media.Incompressible.TableBased.dynamicViscosity Modelica.Media.Incompressible.TableBased.dynamicViscosity

Return dynamic viscosity as a function of the thermodynamic state record

Information

Extends from (Return dynamic viscosity).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
etaDynamic viscosity [Pa.s]

Modelica.Media.Incompressible.TableBased.thermalConductivity Modelica.Media.Incompressible.TableBased.thermalConductivity

Return thermal conductivity as a function of the thermodynamic state record

Information

Extends from (Return thermal conductivity).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
lambdaThermal conductivity [W/(m.K)]

Modelica.Media.Incompressible.TableBased.s_T Modelica.Media.Incompressible.TableBased.s_T

Compute specific entropy

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
TTemperature [K]

Outputs

NameDescription
sSpecific entropy [J/(kg.K)]

Modelica.Media.Incompressible.TableBased.specificEntropy Modelica.Media.Incompressible.TableBased.specificEntropy

Return specific entropy as a function of the thermodynamic state record

Information

Extends from (Return specific entropy).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
sSpecific entropy [J/(kg.K)]

Modelica.Media.Incompressible.TableBased.h_T Modelica.Media.Incompressible.TableBased.h_T

Compute specific enthalpy from temperature

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
TTemperature [K]

Outputs

NameDescription
hSpecific enthalpy at p, T [J/kg]

Modelica.Media.Incompressible.TableBased.h_T_der Modelica.Media.Incompressible.TableBased.h_T_der

Compute specific enthalpy from temperature

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
TTemperature [K]
dTTemperature derivative

Outputs

NameDescription
dhDerivative of Specific enthalpy at T

Modelica.Media.Incompressible.TableBased.h_pT Modelica.Media.Incompressible.TableBased.h_pT

Compute specific enthalpy from pressure and temperature

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
TTemperature [K]
densityOfTInclude or neglect density derivative dependence of enthalpy

Outputs

NameDescription
hSpecific enthalpy at p, T [J/kg]

Modelica.Media.Incompressible.TableBased.density_T Modelica.Media.Incompressible.TableBased.density_T

Return density as function of temperature

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
TTemperature [K]

Outputs

NameDescription
dDensity [kg/m3]

Modelica.Media.Incompressible.TableBased.temperature Modelica.Media.Incompressible.TableBased.temperature

Return temperature as a function of the thermodynamic state record

Information

Extends from (Return temperature).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
TTemperature [K]

Modelica.Media.Incompressible.TableBased.pressure Modelica.Media.Incompressible.TableBased.pressure

Return pressure as a function of the thermodynamic state record

Information

Extends from (Return pressure).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
pPressure [Pa]

Modelica.Media.Incompressible.TableBased.density Modelica.Media.Incompressible.TableBased.density

Return density as a function of the thermodynamic state record

Information

Extends from (Return density).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
dDensity [kg/m3]

Modelica.Media.Incompressible.TableBased.specificEnthalpy Modelica.Media.Incompressible.TableBased.specificEnthalpy

Return specific enthalpy as a function of the thermodynamic state record

Information

Extends from (Return specific enthalpy).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
hSpecific enthalpy [J/kg]

Modelica.Media.Incompressible.TableBased.specificInternalEnergy Modelica.Media.Incompressible.TableBased.specificInternalEnergy

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

Information

Extends from (Return specific internal energy).

Inputs

NameDescription
stateThermodynamic state record

Outputs

NameDescription
uSpecific internal energy [J/kg]

Modelica.Media.Incompressible.TableBased.T_ph Modelica.Media.Incompressible.TableBased.T_ph

Compute temperature from pressure and specific enthalpy

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
hSpecific enthalpy [J/kg]

Outputs

NameDescription
TTemperature [K]

Modelica.Media.Incompressible.TableBased.T_ps Modelica.Media.Incompressible.TableBased.T_ps

Compute temperature from pressure and specific enthalpy

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

NameDescription
pPressure [Pa]
sSpecific entropy [J/(kg.K)]

Outputs

NameDescription
TTemperature [K]

Automatically generated Mon Sep 23 17:21:04 2013.