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Incipient fluidization condition for a centrifugal fluidized bed
Author(s) -
Fan L. T.,
Chang C. C.,
Yu Y. S.,
Takahashi Teruo,
Tanaka Zennosuke
Publication year - 1985
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690310617
Subject(s) - fluidization , fluidized bed , pressure drop , mechanics , centrifugal force , drop (telecommunication) , materials science , thermodynamics , engineering , mechanical engineering , physics , flow (mathematics)
A model has been proposed for the condition of incipient fluidization in a centrifugal fluidized bed. The model is based on the balance between the overall forces, including the centrifugal and fluid frictional forces, exerted on the fluidized particles and the overall effective weight of the particles. Equations have been derived from the model for predicting the critical fluidizing velocity and the maximum pressure differential (or pressure drop) through the centrifugal bed. A series of experiments was carried out with different solid particles, bed rotational speeds, and bed heights. The resultant data for the critical fluidizing velocity and the maximum pressure drop of the bed indicate that the proposed model is valid and the derived equations are of practical use.