.SiemensPower.Media.IntH2O.rho_ph_dpdh

Information

This function returns the density as function of p and h including partial derivatives. The water/steam functions are computed according to inth2o.

Author:	Haiko Steuer	SCD
Checked by:
Protection class:
Used Dymola version:

Copyright © 2007 Siemens AG, PG EIP12. 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 rho_ph_dpdh
  import SI = Modelica.SIunits;
  input SI.Pressure p "Pressure";
  input SI.SpecificEnthalpy h "Specific enthalpy";
  output SI.Density rho "Density";
  output Real drhodp(unit = "kg/(m3.Pa)") "partial derivative of rho wrt p";
  output Real drhodh(unit = "(kg.kg)/(m3.J)") "partial derivative of rho wrt h";
end rho_ph_dpdh;

Revisions

• December 2006 by Kilian Link