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.
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Djati, A., Brahimi, M., Legrand, J. et al. Entrance effect on mass transfer in a parallel plate electrochemical reactor. Journal of Applied Electrochemistry 31, 833–837 (2001). https://doi.org/10.1023/A:1017937525626
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DOI: https://doi.org/10.1023/A:1017937525626