ABSTRAKT

The process of combined heat and mass transfer in the vapor (vapor/gas) phase in condensation of vapor mixtures and liquid evaporation in the vapor/gas fluid is reviewed. It is shown that the calculation of the convective heat transfer accompanied by diffusion may be accomplished from versatile relationships based on the expanded analogy between heat transfer and mass transfer. Analysis of our own experimental and theoretical studies and the literature data shows that the calculation of the heat and mass transfer coefficients may be done from the relationships obtained from the limit relative laws of heat and mass transfer and friction on a permeable surface. The use of simplified relations is discussed. The procedure reviewed in this paper is used in the design of the condensate and evaporation hardware of the Mir water recovery system.