WOLFRAM SYSTEM MODELER

isothermalCompressibility

Isothermal compressibility w.r.t. thermodynamic state (only valid for one-phase)

Wolfram Language

In[1]:=
SystemModel["Modelica.Media.R134a.R134a_ph.isothermalCompressibility"]
Out[1]:=

Information

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

This function calculates the isothermal compressibility of R134a from the state record (e.g., use setState_phX function for input). The isothermal compressibility is modelled by the fundamental equation of state of Tillner-Roth and Baehr (1994).

Restrictions

This property is only defined in one-phase region.

Syntax

kappa = isothermalCompressibility(state)

Inputs (1)

state

Type: ThermodynamicState

Description: Thermodynamic state record

Outputs (1)

kappa

Type: IsothermalCompressibility (1/Pa)

Description: Isothermal compressibility