Extends from Modelica.Icons.Package (Icon for standard packages).
Name | Description |
---|---|
PhaseBoundaryProperties | Thermodynamic base properties on the phase boundary |
InverseDerivatives_rhoT | Derivatives required for inversion of density and temperature functions w.r.t. pressure and enthalpy states |
EOSIdealCoeff | Record for coefficients of ideal term of Helmholtz equation of state |
EOSResidualCoeff | Record for coefficients of residual term of Helmholtz equation of state |
CubicSplineDerEval | Derivative of cubic spline |
CubicSplineEval | Cubic spline |
cv2Phase | Compute isochoric specific heat capacity inside the two-phase region |
FindInterval | Half-interval search algorithm |
helmholtzToBoundaryProps | Calculate phase boundary property record from dimensionless Helmholtz function |
Thermodynamic base properties on the phase boundary
Extends from Modelica.Icons.Record (Icon for records).
Derivatives required for inversion of density and temperature functions w.r.t. pressure and enthalpy states
Extends from Modelica.Icons.Record (Icon for records).
Record for coefficients of ideal term of Helmholtz equation of state
Extends from Modelica.Icons.Record (Icon for records).
Name | Description |
---|---|
nc | No. of coefficients in a |
a[nc] | Coefficients of ideal term of Helmholtz equation of state |
Record for coefficients of residual term of Helmholtz equation of state
Extends from Modelica.Icons.Record (Icon for records).
Name | Description |
---|---|
nc | No. of coefficients in c, d, t, n |
ns1 | No. of zero coefficients in c |
c[nc] | Coefficients of residual term of Helmholtz equation of state |
d[nc] | Coefficients of residual term of Helmholtz equation of state |
t[nc] | Coefficients of residual term of Helmholtz equation of state |
n[nc] | Coefficients of residual term of Helmholtz equation of state |
Derivative of cubic spline
Extends from Modelica.Icons.Function (Icon for functions).
Name | Description |
---|---|
x | Input |
coefs[4] | Spline coefficients |
Name | Description |
---|---|
yder | Spline derivative |
Cubic spline
Extends from Modelica.Icons.Function (Icon for functions).
Name | Description |
---|---|
x | Input |
coefs[4] | Spline coefficients |
Name | Description |
---|---|
y | Output |
Compute isochoric specific heat capacity inside the two-phase region
Extends from Modelica.Icons.Function (Icon for functions).
Name | Description |
---|---|
liq | Properties on the boiling curve |
vap | Properties on the condensation curve |
x | Vapour mass fraction [1] |
T | Temperature [K] |
p | Pressure [Pa] |
Name | Description |
---|---|
cv | Isochoric specific heat capacity [J/(kg.K)] |
dpT | Derivative of pressure w.r.t. temperature |
Half-interval search algorithm
Extends from Modelica.Icons.Function (Icon for functions).
Name | Description |
---|---|
x | Input |
breaks[:] | Grid points defining the intervals |
Name | Description |
---|---|
i | Found interval number |
error | 1=did not find interval |
Calculate phase boundary property record from dimensionless Helmholtz function
Extends from Modelica.Icons.Function (Icon for functions).
Name | Description |
---|---|
f | Dimensionless derivatives of Helmholtz function |
Name | Description |
---|---|
sat | Phase boundary property record |