Mass transfer and shear rate in baffled surface aerator

The scale up or scale down of the process variables in a surface aerator requires information about the shear rate prevailing in the system. In fact, the performance of surface aerator depends upon the shear rate. Shear rate affects the mass transfer operation needed by the surface aerator. Theoreti...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2011, 28(2), 131, pp.502-506
Main Authors: Kumar, Bimlesh, Patel, Ajey Kumar, Rao, Achanta Ramakrishna
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Invited Review Paper
Materials Science
화학공학
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Summary:The scale up or scale down of the process variables in a surface aerator requires information about the shear rate prevailing in the system. In fact, the performance of surface aerator depends upon the shear rate. Shear rate affects the mass transfer operation needed by the surface aerator. Theoretical analysis of shear rate suggests a nonlinear behavior with rotational speed of the impeller, which has been shown in the present work. Present work also shows that in a geometrically similar system of baffled surface aerator, shear rate can be used as a governing parameter for scaling up or down the mass transfer phenomena.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-010-0377-2