.ThermofluidStream.Media.XRGMedia.R1234yf_ph.fid_R1234yf

Helmholtz coefficients of ideal part

Information

This function computes the ideal gas helmholtz derivatives of the fundamental equation of Richter et al for R1234yf (2011) w.r.t. to reduced temperature (tau=T_crit/T) and reduced density (delta=rho/rho_crit).

Interface

function fid_R1234yf
  extends Modelica.Icons.Function;
  input Real delta "reduced density (delta=d/dcrit)";
  input Real tau "reduced temperature (tau=Tcrit/T)";
  output Common.HelmholtzDerivs fid "helmholtz derivatives of ideal part";
end fid_R1234yf;

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