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Gassed power draw of mixed impeller systems
Author(s) -
Myers Kevin J.,
Russell Molly I.,
Bakker André
Publication year - 1997
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450750316
Subject(s) - impeller , power (physics) , materials science , computer science , physics , engineering , mechanical engineering , thermodynamics
A technique is proposed to predict the gassed power draw of mixed impeller systems as a weighted average of the gassed power draws of the individual impellers. The success of this method requires determining the gassed power draws of the individual impellers in the proper gassed environment. In the case of the upper impellers, this environment is provided by a rubber membrane sparger that distributes the gas evenly over the vessel cross section. Extensive comparisons of experimental gassed power draws of mixed impeller systems with model predictions verify the accuracy of the proposed technique.