CONDENSATION OF PURE VAPORS AND BINARY VAPOR MIXTURES IN FORCED FLOW

The coupled processes of heat and mass transfer in film condensation o f pure vapours and binary vapour mixtures in forced flow are investiga ted experimentally. Single-phase resistances for the condensate film a nd for the vapour flow are determined using the temperature at the vap our/liquid interface. The filmside heat transfer can be represented by identical non-dimensional expressions for pure components and binary mixtures. Using appropriate correction terms for the coupled mass tran sfer and the roughness of the interface, calculations for pure forced convective heat transfer in the vapour phase show good agreement with the experimental results.