Non-Newtonian laminar boundary-layer heat transfer in stirred tanks |
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Authors: | Y Kawase M Hoshino T Takahashi |
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Affiliation: | (1) Toyo University Dept. Applied Chemistry Biochemical Engineering Research Center 350-8585 Kawagoe, Saitama-ken Japan, JP |
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Abstract: | A laminar boundary-layer heat transfer in a jacketed, stirred tank with non-Newtonian fluids has been experimentally and
theoretically examined. Heat transfer rates from jacket to process liquid through the stirred tank wall were measured for
different large-scale impeller designs and rheological properties. On the basis of the laminar boundary-layer theory, we developed
a theoretical correlation for non-Newtonian laminar tank-side film heat transfer coefficients in stirred tanks. The correlation
was derived using von Karman's integral technique. Satisfactory agreement between the predictions of the proposed correlation
and the present experimental data for viscous Newtonian and non-Newtonian laminar heat transfer in stirred tanks was obtained.
Received on 20 February 2001 / Published online: 29 November 2001 |
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