Derivative of the density of solid CarboHSP particle w.r.t. time
function rho_T_der import SolarTherm.Media.SolidParticles.CarboHSP_utilities.*; extends Modelica.Icons.Function; input Modelica.SIunits.Temperature T "Temperature"; input Real der_T "Derivative of temperature w.r.t time"; output Real der_rho "Derivative of density w.r.t time"; end rho_T_der;