Base class for two phase medium of one substance
Information
Extends from PartialPureSubstance (base class for pure substances of one chemical substance).
Package Content
| Name | Description |
|---|
| smoothModel | true if the (derived) model should not generate state events |
| onePhase | true if the (derived) model should never be called with two-phase inputs |
 FluidLimits
| validity limits for fluid model |
| FluidConstants
| extended fluid constants |
| fluidConstants | constant data for the fluid |
| ThermodynamicState
| Thermodynamic state of two phase medium |
| SaturationProperties
| Saturation properties of two phase medium |
| FixedPhase
| phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g. interactive use |
 BaseProperties
| Base properties (p, d, T, h, u, R, MM, sat) of two phase medium |
 setDewState
| Return the thermodynamic state on the dew line |
| setBubbleState
| Return the thermodynamic state on the bubble line |
| setState_dTX
| Return thermodynamic state as function of d, T and composition X or Xi |
| setState_phX
| Return thermodynamic state as function of p, h and composition X or Xi |
| setState_psX
| Return thermodynamic state as function of p, s and composition X or Xi |
| setState_pTX
| Return thermodynamic state as function of p, T and composition X or Xi |
| setSat_T
| Return saturation property record from temperature |
 setSat_p
| Return saturation property record from pressure |
| bubbleEnthalpy
| Return bubble point specific enthalpy |
| dewEnthalpy
| Return dew point specific enthalpy |
| bubbleEntropy
| Return bubble point specific entropy |
| dewEntropy
| Return dew point specific entropy |
| bubbleDensity
| Return bubble point density |
| dewDensity
| Return dew point density |
| saturationPressure
| Return saturation pressure |
| saturationTemperature
| Return saturation temperature |
| saturationPressure_sat
| Return saturation temperature |
| saturationTemperature_sat
| Return saturation temperature |
| saturationTemperature_derp
| Return derivative of saturation temperature w.r.t. pressure |
| saturationTemperature_derp_sat
| Return derivative of saturation temperature w.r.t. pressure |
| surfaceTension
| Return surface tension sigma in the two phase region |
| molarMass
| Return the molar mass of the medium |
| dBubbleDensity_dPressure
| Return bubble point density derivative |
| dDewDensity_dPressure
| Return dew point density derivative |
| dBubbleEnthalpy_dPressure
| Return bubble point specific enthalpy derivative |
| dDewEnthalpy_dPressure
| Return dew point specific enthalpy derivative |
| specificEnthalpy_pTX
| Return specific enthalpy from pressure, temperature and mass fraction |
| 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 |
| setState_pT
| Return thermodynamic state from p and T |
| setState_ph
| Return thermodynamic state from p and h |
| setState_ps
| Return thermodynamic state from p and s |
| setState_dT
| Return thermodynamic state from d and T |
 setState_px
| Return thermodynamic state from pressure and vapour quality |
| setState_Tx
| Return thermodynamic state from temperature and vapour quality |
| vapourQuality
| Return vapour quality |
 density_ph
| Return density from p and h |
| temperature_ph
| Return temperature from p and h |
| pressure_dT
| Return pressure from d and T |
| specificEnthalpy_dT
| Return specific enthalpy from d and T |
| specificEnthalpy_ps
| Return specific enthalpy from p and s |
| temperature_ps
| Return temperature from p and s |
| density_ps
| Return density from p and s |
| specificEnthalpy_pT
| Return specific enthalpy from p and T |
| density_pT
| Return density from p and T |
| Inherited |
|---|
| ThermoStates | Enumeration 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=101325 | 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.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 |
 setSmoothState
| Return thermodynamic state so that it smoothly approximates: if x > 0 then state_a else state_b |
| dynamicViscosity
| Return dynamic viscosity |
| thermalConductivity
| Return thermal conductivity |
| prandtlNumber
| Return the Prandtl number |
| pressure
| Return pressure |
| temperature
| Return temperature |
| density
| Return density |
| specificEnthalpy
| Return specific enthalpy |
| specificInternalEnergy
| Return specific internal energy |
| specificEntropy
| Return specific entropy |
| specificGibbsEnergy
| Return specific Gibbs energy |
| specificHelmholtzEnergy
| Return specific Helmholtz energy |
| specificHeatCapacityCp
| Return specific heat capacity at constant pressure |
 heatCapacity_cp
| alias for deprecated name |
| specificHeatCapacityCv
| Return specific heat capacity at constant volume |
| 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 wrt pressure at const specific enthalpy |
| density_derh_p
| Return density derivative wrt specific enthalpy at constant pressure |
| density_derp_T
| Return density derivative wrt pressure at const temperature |
| density_derT_p
| Return density derivative wrt temperature at constant pressure |
| density_derX
| Return density derivative wrt mass fraction |
| density_pTX
| Return density from p, T, and X or Xi |
| 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 |
| MassFlowRate
| Type for mass 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 resect to pressure with medium specific attributes |
| DerDensityByEnthalpy
| Type for partial derivative of density with resect to enthalpy with medium specific attributes |
| DerEnthalpyByPressure
| Type for partial derivative of enthalpy with resect to pressure with medium specific attributes |
| DerDensityByTemperature
| Type for partial derivative of density with resect to temperature with medium specific attributes |
 Choices
| Types, constants to define menu choices |
Types and constants
constant Boolean smoothModel
"true if the (derived) model should not generate state events";
constant Boolean onePhase
"true if the (derived) model should never be called with two-phase inputs";
constant FluidConstants[nS] fluidConstants "constant data for the fluid";
type FixedPhase = Integer(min=0,max=2)
"phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g. interactive use";
validity limits for fluid model
Information
The minimum pressure mostly applies to the liquid state only.
The minimum density is also arbitrary, but is reasonable for techical
applications to limit iterations in non-linear systems. The limits in
enthalpy and entropy are used as safeguards in inverse iterations.
Extends from Modelica.Icons.Record (Icon for a record).
Modelica definition
record FluidLimits "validity limits for fluid model"
extends Modelica.Icons.Record;
Temperature TMIN "minimum temperature";
Temperature TMAX "maximum temperature";
Density DMIN "minimum density";
Density DMAX "maximum density";
AbsolutePressure PMIN "minimum pressure";
AbsolutePressure PMAX "maximum pressure";
SpecificEnthalpy HMIN "minimum enthalpy";
SpecificEnthalpy HMAX "maximum enthalpy";
SpecificEntropy SMIN "minimum entropy";
SpecificEntropy SMAX "maximum entropy";
end FluidLimits;
extended fluid constants
Information
Extends from (critical, triple, molecular and other standard data of fluid).
Modelica definition
redeclare replaceable record extends FluidConstants
"extended fluid constants"
Temperature criticalTemperature "critical temperature";
AbsolutePressure criticalPressure "critical pressure";
MolarVolume criticalMolarVolume "critical molar Volume";
Real acentricFactor "Pitzer acentric factor";
Temperature triplePointTemperature "triple point temperature";
AbsolutePressure triplePointPressure "triple point pressure";
Temperature meltingPoint "melting point at 101325 Pa";
Temperature normalBoilingPoint "normal boiling point (at 101325 Pa)";
DipoleMoment dipoleMoment
"dipole moment of molecule in Debye (1 debye = 3.33564e10-30 C.m)";
Boolean hasIdealGasHeatCapacity=false
"true if ideal gas heat capacity is available";
Boolean hasCriticalData=false "true if critical data are known";
Boolean hasDipoleMoment=false "true if a dipole moment known";
Boolean hasFundamentalEquation=false "true if a fundamental equation";
Boolean hasLiquidHeatCapacity=false
"true if liquid heat capacity is available";
Boolean hasSolidHeatCapacity=false "true if solid heat capacity is available";
Boolean hasAccurateViscosityData=false
"true if accurate data for a viscosity function is available";
Boolean hasAccurateConductivityData=false
"true if accurate data for thermal conductivity is available";
Boolean hasVapourPressureCurve=false
"true if vapour pressure data, e.g. Antoine coefficents are known";
Boolean hasAcentricFactor=false "true if Pitzer accentric factor is known";
SpecificEnthalpy HCRIT0=0.0
"Critical specific enthalpy of the fundamental equation";
SpecificEntropy SCRIT0=0.0
"Critical specific entropy of the fundamental equation";
SpecificEnthalpy deltah=0.0
"Difference between specific enthalpy model (h_m) and f.eq. (h_f) (h_m - h_f)";
SpecificEntropy deltas=0.0
"Difference between specific enthalpy model (s_m) and f.eq. (s_f) (s_m - s_f)";
end FluidConstants;
Thermodynamic state of two phase medium
Information
Extends from (Minimal variable set that is available as input argument to every medium function).
Modelica definition
redeclare replaceable record extends ThermodynamicState
"Thermodynamic state of two phase medium"
FixedPhase phase(min=0, max=2)
"phase of the fluid: 1 for 1-phase, 2 for two-phase, 0 for not known, e.g. interactive use";
end ThermodynamicState;
Saturation properties of two phase medium
Information
Extends from Modelica.Icons.Record (Icon for a record).
Modelica definition
replaceable record SaturationProperties
"Saturation properties of two phase medium"
extends Modelica.Icons.Record;
AbsolutePressure psat "saturation pressure";
Temperature Tsat "saturation temperature";
end SaturationProperties;
Base properties (p, d, T, h, u, R, MM, sat) of two phase medium
Information
Extends from .
Parameters
| Type | Name | Default | Description |
|---|
| Advanced |
| Boolean | preferredMediumStates | false | = true if StateSelect.prefer shall be used for the independent property variables of the medium |
Modelica definition
redeclare replaceable partial model extends BaseProperties
"Base properties (p, d, T, h, u, R, MM, sat) of two phase medium"
SaturationProperties sat "Saturation properties at the medium pressure";
end BaseProperties;
Return the thermodynamic state on the dew line
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function setDewState
"Return the thermodynamic state on the dew line"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation point";
input FixedPhase phase(min = 1, max = 2) = 1 "phase: default is one phase";
output ThermodynamicState state "complete thermodynamic state info";
end setDewState;
Return the thermodynamic state on the bubble line
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function setBubbleState
"Return the thermodynamic state on the bubble line"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation point";
input FixedPhase phase(min = 1, max = 2) = 1 "phase: default is one phase";
output ThermodynamicState state "complete thermodynamic state info";
end setBubbleState;
Return thermodynamic state as function of d, T and composition X or Xi
Information
Extends from (Return thermodynamic state as function of d, T and composition X or Xi).
Inputs
Outputs
Modelica definition
redeclare replaceable partial function extends setState_dTX
"Return thermodynamic state as function of d, T and composition X or Xi"
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
end setState_dTX;
Return thermodynamic state as function of p, h and composition X or Xi
Information
Extends from (Return thermodynamic state as function of p, h and composition X or Xi).
Inputs
Outputs
Modelica definition
redeclare replaceable partial function extends setState_phX
"Return thermodynamic state as function of p, h and composition X or Xi"
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
end setState_phX;
Return thermodynamic state as function of p, s and composition X or Xi
Information
Extends from (Return thermodynamic state as function of p, s and composition X or Xi).
Inputs
Outputs
Modelica definition
redeclare replaceable partial function extends setState_psX
"Return thermodynamic state as function of p, s and composition X or Xi"
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
end setState_psX;
Return thermodynamic state as function of p, T and composition X or Xi
Information
Extends from (Return thermodynamic state as function of p, T and composition X or Xi).
Inputs
Outputs
Modelica definition
redeclare replaceable partial function extends setState_pTX
"Return thermodynamic state as function of p, T and composition X or Xi"
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
end setState_pTX;
Return saturation property record from temperature
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
| Type | Name | Default | Description |
|---|
| Temperature | T | | temperature [K] |
Outputs
Modelica definition
replaceable function setSat_T
"Return saturation property record from temperature"
extends Modelica.Icons.Function;
input Temperature T "temperature";
output SaturationProperties sat "saturation property record";
algorithm
sat.Tsat := T;
sat.psat := saturationPressure(T);
end setSat_T;
Return saturation property record from pressure
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable function setSat_p
"Return saturation property record from pressure"
extends Modelica.Icons.Function;
input AbsolutePressure p "pressure";
output SaturationProperties sat "saturation property record";
algorithm
sat.psat := p;
sat.Tsat := saturationTemperature(p);
end setSat_p;
Return bubble point specific enthalpy
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function bubbleEnthalpy
"Return bubble point specific enthalpy"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output SI.SpecificEnthalpy hl "boiling curve specific enthalpy";
end bubbleEnthalpy;
Return dew point specific enthalpy
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dewEnthalpy
"Return dew point specific enthalpy"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output SI.SpecificEnthalpy hv "dew curve specific enthalpy";
end dewEnthalpy;
Return bubble point specific entropy
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| SpecificEntropy | sl | boiling curve specific entropy [J/(kg.K)] |
Modelica definition
replaceable partial function bubbleEntropy
"Return bubble point specific entropy"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output SI.SpecificEntropy sl "boiling curve specific entropy";
end bubbleEntropy;
Return dew point specific entropy
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dewEntropy
"Return dew point specific entropy"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output SI.SpecificEntropy sv "dew curve specific entropy";
end dewEntropy;
Return bubble point density
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | dl | boiling curve density [kg/m3] |
Modelica definition
replaceable partial function bubbleDensity
"Return bubble point density"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output Density dl "boiling curve density";
end bubbleDensity;
Return dew point density
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | dv | dew curve density [kg/m3] |
Modelica definition
replaceable partial function dewDensity "Return dew point density"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output Density dv "dew curve density";
end dewDensity;
Return saturation pressure
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
| Type | Name | Default | Description |
|---|
| Temperature | T | | temperature [K] |
Outputs
Modelica definition
replaceable partial function saturationPressure
"Return saturation pressure"
extends Modelica.Icons.Function;
input Temperature T "temperature";
output AbsolutePressure p "saturation pressure";
end saturationPressure;
Return saturation temperature
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Temperature | T | saturation temperature [K] |
Modelica definition
replaceable partial function saturationTemperature
"Return saturation temperature"
extends Modelica.Icons.Function;
input AbsolutePressure p "pressure";
output Temperature T "saturation temperature";
end saturationTemperature;
Return saturation temperature
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable function saturationPressure_sat
"Return saturation temperature"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output AbsolutePressure p "saturation pressure";
algorithm
p := sat.psat;
end saturationPressure_sat;
Return saturation temperature
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Temperature | T | saturation temperature [K] |
Modelica definition
replaceable function saturationTemperature_sat
"Return saturation temperature"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output Temperature T "saturation temperature";
algorithm
T := sat.Tsat;
end saturationTemperature_sat;
Return derivative of saturation temperature w.r.t. pressure
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Real | dTp | derivative of saturation temperature w.r.t. pressure |
Modelica definition
replaceable partial function saturationTemperature_derp
"Return derivative of saturation temperature w.r.t. pressure"
extends Modelica.Icons.Function;
input AbsolutePressure p "pressure";
output Real dTp "derivative of saturation temperature w.r.t. pressure";
end saturationTemperature_derp;
Return derivative of saturation temperature w.r.t. pressure
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Real | dTp | derivative of saturation temperature w.r.t. pressure |
Modelica definition
replaceable function saturationTemperature_derp_sat
"Return derivative of saturation temperature w.r.t. pressure"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output Real dTp "derivative of saturation temperature w.r.t. pressure";
algorithm
dTp := saturationTemperature_derp(sat.psat);
end saturationTemperature_derp_sat;
Return surface tension sigma in the two phase region
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| SurfaceTension | sigma | Surface tension sigma in the two phase region [N/m] |
Modelica definition
replaceable partial function surfaceTension
"Return surface tension sigma in the two phase region"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output SurfaceTension sigma "Surface tension sigma in the two phase region";
end surfaceTension;
Return the molar mass of the medium
Information
Extends from (Return the molar mass of the medium).
Inputs
Outputs
| Type | Name | Description |
|---|
| MolarMass | MM | Mixture molar mass [kg/mol] |
Modelica definition
redeclare replaceable partial function extends molarMass
"Return the molar mass of the medium"
algorithm
MM := fluidConstants[1].molarMass;
end molarMass;
Return bubble point density derivative
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dBubbleDensity_dPressure
"Return bubble point density derivative"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output DerDensityByPressure ddldp "boiling curve density derivative";
end dBubbleDensity_dPressure;
Return dew point density derivative
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dDewDensity_dPressure
"Return dew point density derivative"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output DerDensityByPressure ddvdp "saturated steam density derivative";
end dDewDensity_dPressure;
Return bubble point specific enthalpy derivative
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dBubbleEnthalpy_dPressure
"Return bubble point specific enthalpy derivative"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output DerEnthalpyByPressure dhldp
"boiling curve specific enthalpy derivative";
end dBubbleEnthalpy_dPressure;
Return dew point specific enthalpy derivative
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
replaceable partial function dDewEnthalpy_dPressure
"Return dew point specific enthalpy derivative"
extends Modelica.Icons.Function;
input SaturationProperties sat "saturation property record";
output DerEnthalpyByPressure dhvdp
"saturated steam specific enthalpy derivative";
end dDewEnthalpy_dPressure;
Return specific enthalpy from pressure, temperature and mass fraction
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function specificEnthalpy_pTX
"Return specific enthalpy from pressure, temperature and mass fraction"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input Temperature T "Temperature";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output SpecificEnthalpy h "Specific enthalpy at p, T, X";
algorithm
h := specificEnthalpy(setState_pTX(p,T,X,phase));
end specificEnthalpy_pTX;
Return temperature from p, h, and X or Xi
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function temperature_phX
"Return temperature from p, h, and X or Xi"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEnthalpy h "Specific enthalpy";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Temperature T "Temperature";
algorithm
T := temperature(setState_phX(p,h,X,phase));
end temperature_phX;
Return density from p, h, and X or Xi
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | d | density [kg/m3] |
Modelica definition
redeclare replaceable function density_phX
"Return density from p, h, and X or Xi"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEnthalpy h "Specific enthalpy";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Density d "density";
algorithm
d := density(setState_phX(p,h,X,phase));
end density_phX;
Return temperature from p, s, and X or Xi
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function temperature_psX
"Return temperature from p, s, and X or Xi"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Temperature T "Temperature";
algorithm
T := temperature(setState_psX(p,s,X,phase));
end temperature_psX;
Return density from p, s, and X or Xi
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | d | Density [kg/m3] |
Modelica definition
redeclare replaceable function density_psX
"Return density from p, s, and X or Xi"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Density d "Density";
algorithm
d := density(setState_psX(p,s,X,phase));
end density_psX;
Return specific enthalpy from p, s, and X or Xi
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function specificEnthalpy_psX
"Return specific enthalpy from p, s, and X or Xi"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input MassFraction X[nX] "Mass fractions";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output SpecificEnthalpy h "specific enthalpy";
algorithm
h := specificEnthalpy(setState_psX(p,s,X,phase));
end specificEnthalpy_psX;
Return thermodynamic state from p and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function setState_pT
"Return thermodynamic state from p and T"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output ThermodynamicState state "thermodynamic state record";
algorithm
state := setState_pTX(p,T,fill(0,0),phase);
end setState_pT;
Return thermodynamic state from p and h
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function setState_ph
"Return thermodynamic state from p and h"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEnthalpy h "Specific enthalpy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output ThermodynamicState state "thermodynamic state record";
algorithm
state := setState_phX(p,h,fill(0, 0),phase);
end setState_ph;
Return thermodynamic state from p and s
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function setState_ps
"Return thermodynamic state from p and s"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output ThermodynamicState state "thermodynamic state record";
algorithm
state := setState_psX(p,s,fill(0,0),phase);
end setState_ps;
Return thermodynamic state from d and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
| Type | Name | Default | Description |
|---|
| Density | d | | density [kg/m3] |
| Temperature | T | | Temperature [K] |
| FixedPhase | phase | 0 | 2 for two-phase, 1 for one-phase, 0 if not known |
Outputs
Modelica definition
redeclare replaceable function setState_dT
"Return thermodynamic state from d and T"
extends Modelica.Icons.Function;
input Density d "density";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output ThermodynamicState state "thermodynamic state record";
algorithm
state := setState_dTX(d,T,fill(0,0),phase);
end setState_dT;
Return thermodynamic state from pressure and vapour quality
Information
Inputs
Outputs
Modelica definition
replaceable function setState_px
"Return thermodynamic state from pressure and vapour quality"
input AbsolutePressure p "Pressure";
input MassFraction x "Vapour quality";
output ThermodynamicState state "Thermodynamic state record";
algorithm
state := setState_ph(
p,
(1-x)*bubbleEnthalpy(setSat_p(p)) + x*dewEnthalpy(setSat_p(p)),
2);
end setState_px;
Return thermodynamic state from temperature and vapour quality
Information
Inputs
Outputs
Modelica definition
replaceable function setState_Tx
"Return thermodynamic state from temperature and vapour quality"
input Temperature T "Temperature";
input MassFraction x "Vapour quality";
output ThermodynamicState state "thermodynamic state record";
algorithm
state := setState_ph(
saturationPressure_sat(setSat_T(T)),
(1-x)*bubbleEnthalpy(setSat_T(T)) + x*dewEnthalpy(setSat_T(T)),
2);
end setState_Tx;
Return vapour quality
Information
Inputs
Outputs
Modelica definition
replaceable function vapourQuality "Return vapour quality"
input ThermodynamicState state "Thermodynamic state record";
output MassFraction x "Vapour quality";
protected
constant SpecificEnthalpy eps = 1e-8;
algorithm
x := min(max(
(specificEnthalpy(state)-bubbleEnthalpy(setSat_p(pressure(state)))) /
(dewEnthalpy(setSat_p(pressure(state))) - bubbleEnthalpy(setSat_p(pressure(state))) + eps),
0),1);
end vapourQuality;
Return density from p and h
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | d | Density [kg/m3] |
Modelica definition
redeclare replaceable function density_ph
"Return density from p and h"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEnthalpy h "Specific enthalpy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Density d "Density";
algorithm
d := density_phX(p, h, fill(0,0), phase);
end density_ph;
Return temperature from p and h
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function temperature_ph
"Return temperature from p and h"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEnthalpy h "Specific enthalpy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Temperature T "Temperature";
algorithm
T := temperature_phX(p, h, fill(0,0),phase);
end temperature_ph;
Return pressure from d and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
| Type | Name | Default | Description |
|---|
| Density | d | | Density [kg/m3] |
| Temperature | T | | Temperature [K] |
| FixedPhase | phase | 0 | 2 for two-phase, 1 for one-phase, 0 if not known |
Outputs
Modelica definition
redeclare replaceable function pressure_dT
"Return pressure from d and T"
extends Modelica.Icons.Function;
input Density d "Density";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output AbsolutePressure p "Pressure";
algorithm
p := pressure(setState_dTX(d, T, fill(0,0),phase));
end pressure_dT;
Return specific enthalpy from d and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
| Type | Name | Default | Description |
|---|
| Density | d | | Density [kg/m3] |
| Temperature | T | | Temperature [K] |
| FixedPhase | phase | 0 | 2 for two-phase, 1 for one-phase, 0 if not known |
Outputs
Modelica definition
redeclare replaceable function specificEnthalpy_dT
"Return specific enthalpy from d and T"
extends Modelica.Icons.Function;
input Density d "Density";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output SpecificEnthalpy h "specific enthalpy";
algorithm
h := specificEnthalpy(setState_dTX(d, T, fill(0,0),phase));
end specificEnthalpy_dT;
Return specific enthalpy from p and s
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function specificEnthalpy_ps
"Return specific enthalpy from p and s"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output SpecificEnthalpy h "specific enthalpy";
algorithm
h := specificEnthalpy_psX(p,s,fill(0,0));
end specificEnthalpy_ps;
Return temperature from p and s
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function temperature_ps
"Return temperature from p and s"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Temperature T "Temperature";
algorithm
T := temperature_psX(p,s,fill(0,0),phase);
end temperature_ps;
Return density from p and s
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | d | Density [kg/m3] |
Modelica definition
redeclare replaceable function density_ps
"Return density from p and s"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input SpecificEntropy s "Specific entropy";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Density d "Density";
algorithm
d := density_psX(p, s, fill(0,0), phase);
end density_ps;
Return specific enthalpy from p and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
Modelica definition
redeclare replaceable function specificEnthalpy_pT
"Return specific enthalpy from p and T"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output SpecificEnthalpy h "specific enthalpy";
algorithm
h := specificEnthalpy_pTX(p, T, fill(0,0),phase);
end specificEnthalpy_pT;
Return density from p and T
Information
Extends from Modelica.Icons.Function (Icon for a function).
Inputs
Outputs
| Type | Name | Description |
|---|
| Density | d | Density [kg/m3] |
Modelica definition
redeclare replaceable function density_pT
"Return density from p and T"
extends Modelica.Icons.Function;
input AbsolutePressure p "Pressure";
input Temperature T "Temperature";
input FixedPhase phase=0 "2 for two-phase, 1 for one-phase, 0 if not known";
output Density d "Density";
algorithm
d := density(setState_pTX(p, T, fill(0,0),phase));
end density_pT;
HTML-documentation generated by Dymola Sun Jan 17 21:12:23 2010.
Modelica.Media.Interfaces.PartialTwoPhaseMedium.FluidLimits
Modelica.Media.Interfaces.PartialTwoPhaseMedium.BaseProperties
Modelica.Media.Interfaces.PartialTwoPhaseMedium.setDewState
Modelica.Media.Interfaces.PartialTwoPhaseMedium.density_ph