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Prediction of the maximum spoutable bed height in spout‐fluid beds
Author(s) -
Grbavčić Ž. B.,
Hadžismajlović Dž. E.,
Garić R. V.,
Vuković D. V.,
Littman H.
Publication year - 1991
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.5450690148
Subject(s) - fluidization , annulus (botany) , mechanics , force balance , volumetric flow rate , fluidized bed , expansion ratio , materials science , mathematics , geology , geotechnical engineering , physics , thermodynamics , composite material
Abstract A model for predicting the ratio of the maximum spoutable bed height in a spout‐fluid bed to the maximum spoutable bed height in a spouted bed is presented and experimentally verified. The model is a further extension of the basic Mamuro and Hattori force balance model. The ratio H mSF / H m is found to be a function of the external annular fluid flowrate and a parameter C , which is the ratio of fluid velocity at the top of the annulus to that at minimum fluidization. C = 0.935 gives a best fit of our data.