Laminar Gravity-Flow Film Condensation of Binary Vapor Mixtures of Immiscible Liquids

The condensation of a binary vapor mixture of immiscible liquids has been studied. The general formulation of this condensation problem includes the application of the conservation laws to both liquid and vapor phase, along with the boundary and interface conditions. The results indicate that only for small condensation rates, that is, for small temperature differences across the liquid film, do transport processes in the vapor boundary layer play an important role. For large condensation rates, heat and mass transfer can be calculated without the solution of the boundary equations of the vapor flow as long as the condensate film is laminar.