An improved tangency condition for fog formation in cooler-condensers


In 1950 Johnstone et al. (Ind. Engnq Chem. 42, 2298-2302 (1950)) introduced the tangency condition to determine fog (or mist) formation in binary mixtures in cooled channels. In the present analysis it is demonstrated that their condition is erroneous and an improved equation is derived. The condition is based on the heat and diffusional mass transfer rates… (More)


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