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Maximum spoutable bed depths of mixed particle‐size beds
Author(s) -
Reddy K. V. S.,
Fleming R. J.,
Smith J. W.
Publication year - 1968
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.5450460509
Subject(s) - particle size , reynolds number , particle (ecology) , polystyrene , materials science , mechanics , geology , mineralogy , mathematics , geometry , physics , composite material , turbulence , polymer , paleontology , oceanography
Abstract Maximum spoutable bed depths for mixed particle‐size beds of alundum, glass and polystyrene have been found experimentally to reach a peak at a critical particle Reynolds number of about 70. Using Becker's criterion that V m f = V mf and the correlations of Smith‐Reddy for V , and of Wen‐Yu for V mf , the maximum spoutable bed depths H max were theoretically predicted to reach a maximum at a critical N Rem = 68. The experimental maximum spoutable bed depts in a 6‐in. I. D. column fitted with a 60° cone were in good agreement with theoretical predictions.