Return d and T as a function of p and h
function dTofph extends Modelica.Icons.Function; input SI.Pressure p "Pressure"; input SI.SpecificEnthalpy h "Specific enthalpy"; input SI.Pressure delp "Iteration accuracy"; input SI.SpecificEnthalpy delh "Iteration accuracy"; output SI.Density d "Density"; output SI.Temperature T "Temperature (K)"; end dTofph;