Volumetric Heat Transfer Coefficient in Fluidized‐Bed Dryers

Volumetric Heat Transfer Coefficient in Fluidized‐Bed Dryers In literature, there are several Nu=f(Re) equations to specify the heat transfer coefficient between solids and the drying gas, but these equations differ significantly because of the inaccuracy of determining the contact surface between the two phases. A pilot‐plant fluidized‐bed dryer is developed to study the heat and mass transfer phenomena during the drying process. A volumetric heat transfer coefficient is applied for modeling fluidized‐bed dryers. A modified Nusselt number is defined to compare the experimental results and those of the literature. The modified Nu'=f(Re) equation exhibits a proper correlation between the results of the experiments in the literature and those of our experiments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Engineering & Technology (Cet) Wiley

Volumetric Heat Transfer Coefficient in Fluidized‐Bed Dryers

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0930-7516
eISSN
1521-4125
D.O.I.
10.1002/ceat.201700038
Publisher site
See Article on Publisher Site

Abstract

In literature, there are several Nu=f(Re) equations to specify the heat transfer coefficient between solids and the drying gas, but these equations differ significantly because of the inaccuracy of determining the contact surface between the two phases. A pilot‐plant fluidized‐bed dryer is developed to study the heat and mass transfer phenomena during the drying process. A volumetric heat transfer coefficient is applied for modeling fluidized‐bed dryers. A modified Nusselt number is defined to compare the experimental results and those of the literature. The modified Nu'=f(Re) equation exhibits a proper correlation between the results of the experiments in the literature and those of our experiments.

Journal

Chemical Engineering & Technology (Cet)Wiley

Published: Jan 1, 2018

Keywords: ; ; ; ;

References

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