Mass transfer in a hollow fiber dialyzer

A mathematical model is given for a hollow fiber dialyzer in which the dialysate side resistance to mass transfer is taken into account. The mass balance equations are integrated by a numerical procedure for cocurrent and countercurrent flow. Results for both cases are given in terms of the local an...

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Bibliographic Details
Published in:Journal of membrane science 1980, Vol.6, p.133-148
Main Authors: Gostoli, Carlo, Gatta, Alceo
Format: Article
Language:English
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Summary:A mathematical model is given for a hollow fiber dialyzer in which the dialysate side resistance to mass transfer is taken into account. The mass balance equations are integrated by a numerical procedure for cocurrent and countercurrent flow. Results for both cases are given in terms of the local and average Sherwood Number and of the dialyzer efficiency. Dialysate-side Sherwood Numbers are also evaluated for the boundary condition of uniform wall mass flux, and asymptotic solutions are also obtained for this boundary condition. p]A comparison of the Sherwood Numbers and of the efficieneies obtained for the various boundary conditions points out that the use of the mass transfer coefficients for uniform wall mass flux can assure reliable modelling in all the actual working conditions of a hollow fiber hemodialyzer.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(00)82156-0