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Title: Wall-to-Bed Heat Transfer at Minimum Gas-Solid Fluidization
Authors: Zhang, Huili ×
Degrève, Jan
Baeyens, Jan
Dewil, Raf #
Issue Date: 2014
Publisher: Hindawi Publishing Corporation
Series Title: Journal of Powder Technology vol:2014 pages:1-8
Article number: 163469
Abstract: The heat transfer from a fluidized bed to the cooling jacket of the vessel has been studied for various powders at minimum fluidization conditions, by both convection and conduction approaches. These heat transfer characteristics are important as the point of transition between packed and fluidized bed operations and are needed in designing heat transfer operations where bubble- flow is not permitted. The effective thermal conductivity of the emulsion moreover determines the contact resistance at the heating or cooling surface, as used in packet renewal models to predict the wall-to-bed heat transfer. In expressing the overall heat transfer phenomenon as a convective heat transfer coefficient, it was found that the results could be fitted by Numf,𝑗 = 0.01Ar0.42.
ISSN: 2090-7710
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Sustainable Chemical Process Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver
Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section
Sustainable Chemical Process Technology TC
Department of Health and Technology - UC Leuven
× corresponding author
# (joint) last author

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