.ThermalSeparation.Media.C2H5OH_Water_Liq.FugacityCoefficient.FugacityCoeff .ThermalSeparation.Media.C2H5OH_Water_Liq.FugacityCoefficient.FugacityCoeffmodel FugacityCoeff = ThermalSeparation.Media.Correlations.SaturationFugacityCoefficient.SaturationFugacitycoefficient;