.SiemensPower.Media.TTSE.Utilities.der_rho_ph

Information

This function returns the time derivative of the density as function of p and h according to the chain rule. The partial derivatives are build with help of TTSE functions.

Author:	Julien Bonifay	SCD
Checked by:
Protection class:	internal

Copyright © 2007 Siemens AG. All rights reserved.

This model is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. For details see disclaimer

Interface

function der_rho_ph
  import SI = Modelica.SIunits;
  input SI.Pressure p "Pressure";
  input SI.SpecificEnthalpy h "Specific enthalpy";
  input Integer phase = 0 "2 for two-phase, 1 for one-phase, 0 if not known";
  input Real der_p "time derivative of pressure";
  input Real der_h "time derivative of specific enthalpy";
  output Real der_rho "time derivative of density";
end der_rho_ph;

Revisions

• May 2011 by Julien Bonifay