This package provides high accuracy physical properties for water according to the IAPWS/IF97 standard. It has been part of the ThermoFluid Modelica library and been extended, reorganized and documented to become part of the Modelica Standard library.
An important feature that distinguishes this implementation of the IF97 steam property standard is that this implementation has been explicitly designed to work well in dynamic simulations. Computational performance has been of high importance. This means that there often exist several ways to get the same result from different functions if one of the functions is called often but can be optimized for that purpose.
The original documentation of the IAPWS/IF97 steam properties can freely be distributed with computer implementations, so for curious minds the complete standard documentation is provided with the Modelica properties library. The following documents are included (in directory Modelica/Resources/Documentation/Media/Water/IF97documentation):
Extends from Modelica.Icons.UtilitiesPackage
(Icon for utility packages).
Name | Description |
---|---|
BaseIF97 … | Modelica Physical Property Model: the new industrial formulation IAPWS-IF97 |
beta_dT | Isobaric expansion coefficient as function of density and temperature |
beta_ph | Isobaric expansion coefficient as function of pressure and specific enthalpy |
beta_props_dT | Isobaric expansion coefficient as function of density and temperature |
beta_props_ph | Isobaric expansion coefficient as function of pressure and specific enthalpy |
beta_props_pT | Isobaric expansion coefficient as function of pressure and temperature |
beta_pT | Isobaric expansion coefficient as function of pressure and temperature |
cp_dT | Specific heat capacity at constant pressure as function of density and temperature |
cp_ph | Specific heat capacity at constant pressure as function of pressure and specific enthalpy |
cp_props_dT | Specific heat capacity at constant pressure as function of density and temperature |
cp_props_ph | Specific heat capacity at constant pressure as function of pressure and specific enthalpy |
cp_props_pT | Specific heat capacity at constant pressure as function of pressure and temperature |
cp_pT | Specific heat capacity at constant pressure as function of pressure and temperature |
cv_dT | Specific heat capacity at constant volume as function of density and temperature |
cv_ph | Specific heat capacity at constant volume as function of pressure and specific enthalpy |
cv_props_dT | Specific heat capacity at constant volume as function of density and temperature |
cv_props_ph | Specific heat capacity at constant volume as function of pressure and specific enthalpy |
cv_props_pT | Specific heat capacity at constant volume as function of pressure and temperature |
cv_pT | Specific heat capacity at constant volume as function of pressure and temperature |
ddhp | Density derivative by specific enthalpy |
ddhp_props | Density derivative by specific enthalpy |
ddph | Density derivative by pressure |
ddph_props | Density derivative by pressure |
dynamicIsentropicEnthalpy | Isentropic specific enthalpy from p,s and good guesses of d and T |
dynamicViscosity | Compute eta(d,T) in the one-phase region |
h_dT | Specific enthalpy as function of density and temperature |
h_dT_der | Derivative function of h_dT |
h_props_dT | Specific enthalpy as function of density and temperature |
h_props_ps | Specific enthalpy as function or pressure and temperature |
h_props_pT | Specific enthalpy as function or pressure and temperature |
h_ps | Specific enthalpy as function or pressure and temperature |
h_pT | Specific enthalpy as function or pressure and temperature |
h_pT_der | Derivative function of h_pT |
hl_p | Compute the saturated liquid specific h(p) |
hv_p | Compute the saturated vapour specific h(p) |
isentropicEnthalpy | Isentropic specific enthalpy from p,s (preferably use dynamicIsentropicEnthalpy in dynamic simulation!) |
isentropicEnthalpy_der | Derivative of isentropic specific enthalpy from p,s |
isentropicEnthalpy_props |   |
isentropicExponent_dT | Isentropic exponent as function of density and temperature |
isentropicExponent_ph | Isentropic exponent as function of pressure and specific enthalpy |
isentropicExponent_props_dT | Isentropic exponent as function of density and temperature |
isentropicExponent_props_ph | Isentropic exponent as function of pressure and specific enthalpy |
isentropicExponent_props_pT | Isentropic exponent as function of pressure and temperature |
isentropicExponent_pT | Isentropic exponent as function of pressure and temperature |
iter |   |
kappa_dT | Isothermal compressibility factor as function of density and temperature |
kappa_ph | Isothermal compressibility factor as function of pressure and specific enthalpy |
kappa_props_dT | Isothermal compressibility factor as function of density and temperature |
kappa_props_ph | Isothermal compressibility factor as function of pressure and specific enthalpy |
kappa_props_pT | Isothermal compressibility factor as function of pressure and temperature |
kappa_pT | Isothermal compressibility factor as function of pressure and temperature |
p_dT | Pressure as function of density and temperature |
p_dT_der | Derivative function of p_dT |
p_props_dT | Pressure as function of density and temperature |
phase_dT | Phase as a function of pressure and temperature |
phase_ph | Phase as a function of pressure and specific enthalpy |
phase_ps | Phase as a function of pressure and specific entropy |
regionAssertReal | Assert function for inlining |
rho_ph | Density as function of pressure and specific enthalpy |
rho_ph_der | Derivative function of rho_ph |
rho_props_ph | Density as function of pressure and specific enthalpy |
rho_props_ps | Density as function of pressure and specific entropy |
rho_props_pT | Density as function or pressure and temperature |
rho_ps | Density as function of pressure and specific entropy |
rho_pT | Density as function or pressure and temperature |
rho_pT_der | Derivative function of rho_pT |
rhol_p | Compute the saturated liquid d(p) |
rhol_T | Compute the saturated liquid d(T) |
rhov_p | Compute the saturated vapour d(p) |
rhov_T | Compute the saturated vapour d(T) |
s_dT | Temperature as function of density and temperature |
s_ph | Specific entropy as function of pressure and specific enthalpy |
s_ph_der | Specific entropy as function of pressure and specific enthalpy |
s_props_dT | Specific entropy as function of density and temperature |
s_props_ph | Specific entropy as function of pressure and specific enthalpy |
s_props_pT | Specific entropy as function of pressure and temperature |
s_pT | Temperature as function of pressure and temperature |
sl_p | Compute the saturated liquid specific s(p) |
surfaceTension | Compute sigma(T) at saturation T |
sv_p | Compute the saturated vapour specific s(p) |
T_ph | Temperature as function of pressure and specific enthalpy |
T_ph_der | Derivative function of T_ph |
T_props_ph | Temperature as function of pressure and specific enthalpy |
T_props_ps | Temperature as function of pressure and specific entropy |
T_ps | Temperature as function of pressure and specific entropy |
thermalConductivity | Compute lambda(d,T,p) in the one-phase region |
ThermoFluidSpecial … |   |
velocityOfSound_dT | Speed of sound as function of density and temperature |
velocityOfSound_ph |   |
velocityOfSound_props_dT | Speed of sound as function of density and temperature |
velocityOfSound_props_ph | Speed of sound as function of pressure and specific enthalpy |
velocityOfSound_props_pT | Speed of sound as function of pressure and temperature |
velocityOfSound_pT | Speed of sound as function of pressure and temperature |
waterBaseProp_dT | Intermediate property record for water (d and T preferred states) |
waterBaseProp_ph | Intermediate property record for water |
waterBaseProp_ps | Intermediate property record for water |
waterBaseProp_pT | Intermediate property record for water (p and T preferred states) |
This icon is indicates a record.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.IterationData
(Constants for iterations internal to some functions).
Type | Name | Description |
---|---|---|
constant Integer | IMAX | Maximum number of iterations for inverse functions |
constant Real | DELP | Maximum iteration error in pressure, Pa |
constant Real | DELS | Maximum iteration error in specific entropy, J/{kg.K} |
constant Real | DELH | Maximum iteration error in specific enthalpy, J/kg |
constant Real | DELD | Maximum iteration error in density, kg/m^3 |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | Phase: 2 for two-phase, 1 for one phase, 0 if unknown |
Integer | region | If 0, do region computation, otherwise assume the region is this input |
Type | Name | Description |
---|---|---|
IF97BaseTwoPhase | aux | Auxiliary record |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Integer | phase | Phase: 2 for two-phase, 1 for one phase, 0 if unknown |
Integer | region | If 0, do region computation, otherwise assume the region is this input |
Type | Name | Description |
---|---|---|
IF97BaseTwoPhase | aux | Auxiliary record |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
IF97BaseTwoPhase | properties | Auxiliary record |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
IF97BaseTwoPhase | properties | Auxiliary record |
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Type | Name | Description |
---|---|---|
Integer | phase | True if in liquid or gas or supercritical region |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Type | Name | Description |
---|---|---|
Integer | phase | True if in liquid or gas or supercritical region |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | rho | Density |
Temperature | T | Temperature |
Type | Name | Description |
---|---|---|
Integer | phase | True if in liquid or gas or supercritical region |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Real | p_der | Derivative of pressure |
Real | h_der | Derivative of specific enthalpy |
Type | Name | Description |
---|---|---|
Real | rho_der | Derivative of density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Real | p_der | Derivative of pressure |
Real | h_der | Derivative of specific enthalpy |
Type | Name | Description |
---|---|---|
Real | T_der | Derivative of temperature |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | properties | Auxiliary record |
Real | p_der | Derivative of pressure |
Real | h_der | Derivative of specific enthalpy |
Type | Name | Description |
---|---|---|
Real | s_der | Derivative of entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Boolean | check | Condition to check |
Type | Name | Description |
---|---|---|
Real | dummy | Dummy output |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
DerDensityByPressure | ddph | Density derivative by pressure |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
DerDensityByPressure | ddph | Density derivative by pressure |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
DerDensityByEnthalpy | ddhp | Density derivative by specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEnthalpy | h | Specific enthalpy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
DerDensityByEnthalpy | ddhp | Density derivative by specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, do region computation, otherwise assume the region is this input |
Type | Name | Description |
---|---|---|
IF97BaseTwoPhase | aux | Auxiliary record |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Density | rho | Density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Real | p_der | Derivative of pressure |
Real | T_der | Derivative of temperature |
Type | Name | Description |
---|---|---|
Real | h_der | Derivative of specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Real | p_der | Derivative of pressure |
Real | T_der | Derivative of temperature |
Type | Name | Description |
---|---|---|
Real | rho_der | Derivative of density |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Temperature | T | Temperature |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | rho | Density |
Temperature | T | Temperature |
Integer | phase | Phase: 2 for two-phase, 1 for one phase, 0 if unknown |
Integer | region | If 0, do region computation, otherwise assume the region is this input |
Type | Name | Description |
---|---|---|
IF97BaseTwoPhase | aux | Auxiliary record |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Real | d_der | Derivative of density |
Real | T_der | Derivative of temperature |
Type | Name | Description |
---|---|---|
Real | h_der | Derivative of specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Real | d_der | Derivative of density |
Real | T_der | Derivative of temperature |
Type | Name | Description |
---|---|---|
Real | p_der | Derivative of pressure |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cv | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificHeatCapacity | cp | Specific heat capacity |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
RelativePressureCoefficient | beta | Isobaric expansion coefficient |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
IsothermalCompressibility | kappa | Isothermal compressibility factor |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Velocity | v_sound | Speed of sound |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
Real | gamma | Isentropic exponent |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.hl_p
(Liquid specific enthalpy on the boundary between regions 4 and 3 or 1).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.hv_p
(Vapour specific enthalpy on the boundary between regions 4 and 3 or 2).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.sl_p
(Liquid specific entropy on the boundary between regions 4 and 3 or 1).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.sv_p
(Vapour specific entropy on the boundary between regions 4 and 3 or 2).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
Type | Name | Description |
---|---|---|
SpecificEntropy | s | Specific entropy |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.rhol_T
(Density of saturated water).
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
Type | Name | Description |
---|---|---|
Density | d | Density of water at the boiling point |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.rhov_T
(Density of saturated vapour).
Type | Name | Description |
---|---|---|
Temperature | T | Temperature |
Type | Name | Description |
---|---|---|
Density | d | Density of steam at the condensation point |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.rhol_p
(Density of saturated water).
Type | Name | Description |
---|---|---|
Pressure | p | Saturation pressure |
Type | Name | Description |
---|---|---|
Density | rho | Density of steam at the condensation point |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Regions.rhov_p
(Density of saturated vapour).
Type | Name | Description |
---|---|---|
Pressure | p | Saturation pressure |
Type | Name | Description |
---|---|---|
Density | rho | Density of steam at the condensation point |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Transport.visc_dTp
(Dynamic viscosity eta(d,T,p), industrial formulation).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature (K) |
Pressure | p | Pressure (only needed for region of validity) |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Type | Name | Description |
---|---|---|
DynamicViscosity | eta | Dynamic viscosity |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Transport.cond_dTp
(Thermal conductivity lam(d,T,p) (industrial use version) only in one-phase region).
Type | Name | Description |
---|---|---|
Density | d | Density |
Temperature | T | Temperature (K) |
Pressure | p | Pressure |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Boolean | industrialMethod | If true, the industrial method is used, otherwise the scientific one |
Type | Name | Description |
---|---|---|
ThermalConductivity | lambda | Thermal conductivity |
This icon indicates Modelica functions.
Extends from Modelica.Media.Water.IF97_Utilities.BaseIF97.Transport.surfaceTension
(Surface tension in region 4 between steam and water).
Type | Name | Description |
---|---|---|
Temperature | T | Temperature (K) |
Type | Name | Description |
---|---|---|
SurfaceTension | sigma | Surface tension in SI units |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Integer | region | If 0, region is unknown, otherwise known and this input |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
IF97BaseTwoPhase | aux | Auxiliary record |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Isentropic enthalpy |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
IF97BaseTwoPhase | aux | Auxiliary record |
Real | p_der | Pressure derivative |
Real | s_der | Entropy derivative |
Type | Name | Description |
---|---|---|
Real | h_der | Specific enthalpy derivative |
This icon indicates Modelica functions.
Extends from Modelica.Icons.Function
(Icon for functions).
Type | Name | Description |
---|---|---|
Pressure | p | Pressure |
SpecificEntropy | s | Specific entropy |
Density | dguess | Good guess density, e.g., from adjacent volume |
Temperature | Tguess | Good guess temperature, e.g., from adjacent volume |
Integer | phase | 2 for two-phase, 1 for one-phase, 0 if not known |
Type | Name | Description |
---|---|---|
SpecificEnthalpy | h | Specific enthalpy |
Generated 2018-12-12 12:14:32 EST by MapleSim.