The mass transfer analogy to heat transfer in fluids with temperature-dependent properties

The analogy between heat transfer in a single-component fluid and isothermal mass transfer of a two-component fluid without chemical reaction is presented. The analogy is well established and frequently used for fluids with constant properties. An application of the variable property analogy to mass transfer in binary mixtures is presented along with specific recommendations for the CO 2 -air and Freon-air systems