The Significance of multicomponent diffusional interactions in the process of condensation in the presence of a non condensable gas

Recent developments in the understanding of multicomponent heat and mass transfer have indicated that the so called “diffusional interaction effects” might be important in Engineering Design under certain conditions. It is shown that the significance of these multicomponent effects may be readily diagnosed in a given situation. By considering mixtures of various alkanes with nitrogen and hydrogen, it is shown that large “diffusional interaction ettects” are unlikely in condensation of two vapours in the presence of a non condcnsable gas.