isobaric expansion coefficient as function of density and temperature
function beta_props_dT extends Modelica.Icons.Function; input SI.Density d "density"; input SI.Temperature T "temperature"; input ThermalSeparation.Media.WaterBasedLiquid.BaseClasses.Common.IF97BaseTwoPhase aux "auxiliary record"; output SI.RelativePressureCoefficient beta "isobaric expansion coefficient"; end beta_props_dT;