.ThermoSysPro.Properties.WaterSteam.IF97_Utilities.Standard.s_ph_der

Information

specific entropy as function of pressure and specific enthalpy

Interface

function s_ph_der
  extends Modelica.Icons.Function;
  input Units.SI.Pressure p "pressure";
  input Units.SI.SpecificEnthalpy h "specific enthalpy";
  input ThermoSysPro.Properties.WaterSteam.Common.IF97BaseTwoPhase aux "auxiliary record";
  input Real p_der "derivative of pressure";
  input Real h_der "derivative of specific enthalpy";
  output Real s_der "derivative of entropy";
end s_ph_der;