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Transport with time-dependent boundary conditions in a ν-dimensional membrane

✍ Scribed by Richard Ash

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
143 KB
Volume
232
Category
Article
ISSN
0376-7388

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✦ Synopsis

Following Favre et al. [J. Membr. Sci. 207 (2002) 59], a detailed study has been made of the effect of time-dependence in the boundary conditions upon the four measurable time-lags associated with transport through a membrane. A new procedure for deriving the modified time-lags is presented which encompasses three membrane geometries and a variety of boundary conditions. While the greater part of the treatment involves a constant diffusion coefficient, some attention has been given to the corresponding problem of transport in a slab membrane governed by a concentration-dependent diffusion coefficient. The application of this procedure to a particular aspect of constant-pressure sorption kinetics is also indicated.

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