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The distribution of bubbles in a gas fluidised bed

✍ Scribed by R. Matsuno; P.N. Rowe

Publisher: Elsevier Science
Year: 1970
Tongue: English
Weight: 429 KB
Volume: 25
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(70)85081-3

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✦ Synopsis

Based on the observed pattern of coalescence of bubble pairs in vertical alignment in a two-dimensional bed, a theory is developed which describes how bubble size and frequency changes with height in a gas fluidised bed. It is confirmed by comparison with the reported data from 10 separate investigations which can together be described by -d,1'2(dn/dh) = 0497 (ndgo.54)'.64

where dB is the average bubble diameter and n the number frequency per unit cross sectional area, both at height h above the distributor.

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