Experimental and Theoretical Information on Solid Flow in a Circulating Fluidized Bed

[+] Author and Article Information
F. R. Steward, M. F. Couturier, S. Poolpol, S. Wang

Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick, Canada E3B 6C2

J. Energy Resour. Technol 117(2), 133-141 (Jun 01, 1995) (9 pages) doi:10.1115/1.2835329 History: Received November 05, 1993; Revised February 07, 1995; Online January 22, 2008


Data are presented on a laboratory-scale circulating fluidized bed for various column geometries, solid fluxes, and gas velocities. Particular attention is paid to the solid flux profiles under various operating conditions. A model based on the fundamental equations of motion has been developed to describe the flow patterns of the solids particles and gas within a circulating fluidized bed. The predictions of the model are compared with experimental results. The model predicts that instabilities at the base of the bed propagate up the column for significant distances before uniform flows of solids and gas are established.

Copyright © 1995 by The American Society of Mechanical Engineers
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