Entrance effect on mass transfer in a parallel plate electrochemical reactor |
| |
Authors: | A. Djati M. Brahimi J. Legrand B. Saidani |
| |
Affiliation: | (1) Laboratoire d'Hydrodynamique, Université de Béjaia, 06000 Béjaia, Algeria;(2) GEPEA – UMR-MA 100, Université de Nantes – IUT de Saint-Nazaire, CRTT, BP 406, 44602 Saint-Nazaire, France;(3) Laboratoire d'Electrochimie, Université de Béjaia, 06000 Béjaia, Algeria |
| |
Abstract: | The influence of different fluid inlet types, slits or tubes, on mass transfer in a rectangular reactor was studied. Measurements of mass transfer coefficients were made using the limiting diffusion current technique based on ferricyanide ion reduction at a large nickel electrode located downstream of abrupt expansions. The overall mass transfer coefficients obtained were 3 to 13 times greater than those obtained in fully developed flows. Overall mass transfer coefficients were correlated for Reynolds numbers ranging from 400 to 3500 by a unique equation by introducing a nondimensional expansion factor defined by the ratio of the fluid inlet cross-section to that of the reactor. The correlation equation obtained was compared with literature data. |
| |
Keywords: | expansion flow mass transfer parallel plate reactor |
本文献已被 SpringerLink 等数据库收录! |
|