Specific Helmholtz energy of liquid sodium
function helmholtz_pT import SolarTherm.Media.Sodium.Sodium_utilities.*; extends Modelica.Icons.Function; input Modelica.SIunits.Temperature T "Temperature"; input Modelica.SIunits.AbsolutePressure p "Pressure"; output Modelica.SIunits.SpecificHelmholtzFreeEnergy helmholtz "Specific Helmholtz energy"; end helmholtz_pT;