Turbulent fluid flow and electrochemical mass transfer in an annular duct with an obstruction

A so-called blockage geometry consisting of a rod with a fin positioned concentrically within a pipe is used to asses the capabilities of numerical turbulent flow and mass transfer models to predict the turbulent mass transfer coefficients. Measurements of the mass transfer coefficient have been per...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2009-12, Vol.39 (12), p.2453-2459
Main Authors: Weyns, G., Nelissen, G., Pembery, J. G. A., Maciel, P., Deconinck, J., Deconinck, H., Patrick, M. A., Wragg, A. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Computational fluid dynamics
Electrochemistry
Electrodes
Flow rate
Fluid flow
Industrial Chemistry/Chemical Engineering
Mass transfer
Mathematical models
Original Paper
Physical Chemistry
Turbulence
Turbulent flow
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Summary:A so-called blockage geometry consisting of a rod with a fin positioned concentrically within a pipe is used to asses the capabilities of numerical turbulent flow and mass transfer models to predict the turbulent mass transfer coefficients. Measurements of the mass transfer coefficient have been performed for a range of fin diameters and flow rates. The limiting diffusion current measurements were performed using the ferri-ferrocyanide system and nickel electrodes. Different mass transfer turbulence models are used for the calculations and the results are compared with the measurements. The influence of flow rate and fin diameter on the mass transfer rate is examined.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-009-9934-y