WOLFRAM SYSTEM MODELER

dDewDensity_dPressure_der_sat

Time derivative of vapor density in two-phase region w.r.t. pressure

Wolfram Language

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

Information

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

This function calculates the time derivative of vapor density of R134a with regard to the time derivative of p. The non-derivative function is dewDensity.

Restrictions

It is only valid in the two-phase region (i.e., ptriple ≤ p ≤ pcrit ).

Syntax

der_ddvdp = dDewDensity_dPressure_der_sat(sat, der_sat)

Inputs (2)

sat

Type: SaturationProperties

Description: Saturation properties | pressure is used for interpolation
der_sat

Type: SaturationProperties

Description: Derivative of saturation properties

Outputs (1)

der_ddvdp

Type: Real

Description: Time derivative of vapor density in two-phase region w.r.t. pressure