.ThermalSeparation.Media.Propane_Pentane_Liq.FugacityCoefficient.FugacityCoeff .ThermalSeparation.Media.Propane_Pentane_Liq.FugacityCoefficient.FugacityCoeffmodel FugacityCoeff = ThermalSeparation.Media.Correlations.SaturationFugacityCoefficient.SaturationFugacitycoefficient;