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Forced and natural convective mass transfer in multicomponent gaseous mixtures
Author(s) -
Carlton Herbert E.,
Oxley Joseph H.
Publication year - 1967
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690130330
Subject(s) - mass transfer , sherwood number , ternary operation , thermodynamics , analogy , binary number , chemistry , diffusion , natural convection , convection , schmidt number , flow (mathematics) , mechanics , physics , reynolds number , nusselt number , mathematics , computer science , linguistics , philosophy , arithmetic , turbulence , programming language , prandtl number
The use of the Chilton‐Colburn analogy to obtain an effective film thickness over which the Stefan‐Maxwell equations can be integrated was confirmed for binary mixtures and found applicable for ternary, quaternary, and presumably higher order mixtures under conditions of nonequimolal counterdiffusion in a differential convective flow system. A method of averaging binary diffusivities was developed for use in computing the Schmidt number in these multicomponent systems. It was also found necessary to modify the usual Sherwood number, if there was a large molecular weight change across the diffusion barrier when the Chilton‐Colburn analogy was employed.