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Liquid holdup and heat transfer coefficient in liquid-solid and three-phase fluidized beds

✍ Scribed by Tai-Ming Chiu; E. N. Ziegler

Publisher
American Institute of Chemical Engineers
Year
1985
Tongue
English
Weight
543 KB
Volume
31
Category
Article
ISSN
0001-1541

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✦ Synopsis

Liquid holdups and wall-to-bed heat transfer coefficients in threephase fluidized beds with glass beads and cylindrical y-alumina particles were determined ex- perimentally. It was found that the product of heat transfer coefficient and liquid holdup in threephase fludized beds is equal to that in corresponding liquid-solid fluidized beds. A generalized correlation equation for heat transfer coefficients in both liquid-solid and threephase fluidized beds was proposed based on the above relationship.

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## Abstract An experiment was conducted to obtain heat transfer data in liquid–solid circulating fluidized beds. In the experiment, two kinds of risers were provided, their inner diameter being 24 mm and 12 mm, respectively. Tested particles were of glass and ceramics, having a diameter range from