within OTRERA_formation.Models; model Test_Media replaceable package Medium = Modelica.Media.Air.MoistAir constrainedby Modelica.Media.Interfaces.PartialMedium annotation(choicesAllMatching = true) ; //USER DEFINED PARAMETERS parameter Modelica.Units.SI.Temperature T = 573.15 ; parameter Modelica.Units.SI.Pressure p = 155e5 ; //INTERNAL VARIABLES Medium.ThermodynamicState state ; Modelica.Units.SI.Density d ; //IMPORTED COMPONENTS equation state = Medium.setState_pTX(p=p,T=T); d = Medium.density(state) ; end Test_Media;