.ThermalSeparation.FilmModel.StructuredPackedColumn.MS_film.HeatTransferVapour .ThermalSeparation.FilmModel.StructuredPackedColumn.MS_film.HeatTransferVapourmodel HeatTransferVapour = ThermalSeparation.HeatAndMassTransfer.InterfacialHeatTransferCoefficient.Vapour.Constant;