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Permanent jet formation in beds of particulate solids
Author(s) -
Grace J. R.,
Lim C. J.
Publication year - 1987
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450650126
Subject(s) - jet (fluid) , bubble , mechanics , fluidized bed , range (aeronautics) , thermodynamics , materials science , particulates , chemistry , physics , composite material , organic chemistry
The simple criterion proposed by Chandnani and Epstein (1984, 1986) for stable spouting, d or /d p ≤ 25.4, is shown to give a good separation between gas‐solid systems which form permanent jets and those that bubble, for a wide range of experimental data reported in the literature. The criterion is suggested as a necessary but not sufficient condition for permanent jet formation in fluidized, spout‐fluid and spouted beds.
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