.ThermalSeparation.FilmModel.RandomPackedColumn.EnhancementMS.HeatTransferVapour .ThermalSeparation.FilmModel.RandomPackedColumn.EnhancementMS.HeatTransferVapourmodel HeatTransferVapour = ThermalSeparation.HeatAndMassTransfer.InterfacialHeatTransferCoefficient.Vapour.Constant;