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RESEARCH PAPERS

Solids Circulation in Turbulent Fluidized Beds and Heat Transfer to Immersed Tube Banks

[+] Author and Article Information
F. W. Staub

General Electric Company, Corporate Research and Development, Schenectady, New York 12301

J. Heat Transfer 101(3), 391-396 (Aug 01, 1979) (6 pages) doi:10.1115/1.3450986 History: Received July 28, 1978; Online August 11, 2010

Abstract

In gas fluidized beds of large particles, a change in flow regime from bubbling flow to turbulent flow has been observed as the superficial gas velocity is increased. Solids flow and heat transfer models based on the bubbling flow regime are not generally adequate in the turbulent flow regime. A turbulent flow model is given here that is supported by limited solids flow measurements. A simplified model of the heat transfer to tube banks immersed in fluidized beds, that employs the solids flow model, is also given and is shown to be supported by data over a wide gas pressure and temperature range with particles in the 350μm to 2600μm size range.

Copyright © 1979 by ASME
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