Abstract
Mass transfer processes are shown to be capable of description in terms (a) of an equation, which is the same for all types of mass transfer, relating the mass transfer rate to the Reynolds number and other conditions; and (6) of a driving force, called the transfer number, which appears in the common equation but has a different form for each type of mass transfer. Transfer numbers for absorption, vaporization, condensation, and the combustion of carbon, metals, and liquid fuels are derived. The mass transfer rates predicted in combustion are compared with experimental data.
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