.ThermalSeparation.Components.Columns.BaseClasses.BaseColumn_newStartUpShutDown.ThermoEquilibrium .ThermalSeparation.Components.Columns.BaseClasses.BaseColumn_newStartUpShutDown.ThermoEquilibriummodel ThermoEquilibrium = ThermalSeparation.PhaseEquilibrium.RealGasActivityCoeffLiquid;