WOLFRAM SYSTEM MODELER

setState_psX

Set state for pressure and specific entropy (X not used since single substance)

Wolfram Language

In[1]:=

SystemModel["Modelica.Media.R134a.R134a_ph.setState_psX"]

Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This function may be used in order to calculate the thermodynamic state record used as input by many functions. It will calculate the missing states:

density
pressure
specific enthalpy

Example:

parameter Medium.AbsolutePressure p = 3e5;
parameter Medium.SpecificEntropy s = 1.7e3;

Medium.SpecificEnthalpy h;

equation

h = Medium.specificEnthalpy(setState_psX(p, s, fill(0, Medium.nX)));

Syntax

state = setState_psX(p, s, X, phase)

Inputs (4)

p	Type: AbsolutePressure (Pa) Description: Pressure
s	Type: SpecificEntropy (J/(kg⋅K)) Description: Specific entropy
X	Default Value: reference_X Type: MassFraction[:] (kg/kg) Description: Mass fractions
phase	Default Value: 0 Type: FixedPhase Description: 2 for two-phase, 1 for one-phase, 0 if not known

Outputs (1)

state	Type: ThermodynamicState Description: Thermodynamic state record

state

Type: ThermodynamicState

Description: Thermodynamic state record

Revisions

2020-02-05 Stefan Wischhusen: Added missing property calculation for d and T.