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Homogeneous Fluidization Characteristics of Vibrating Fluidized Beds
Author(s) -
Jin Haibo,
Tong Zemin,
Zhang Jiyu,
Zhang Bijiang
Publication year - 2004
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.5450820521
Subject(s) - fluidization , homogeneity (statistics) , fluidized bed , vibration , homogeneous , materials science , mechanics , thermodynamics , mathematics , acoustics , physics , statistics
Abstract The effects of vibration parameters, operating conditions and material properties on fluidization quality were investigated by the measurement and analysis of voidage fluctuation signals in a vibrating fluidized bed with a diameter of 148 mm. The fluctuation deviation of the bed voidage and the enhancement index of the bed derived can describe bed homogeneity and its extension. A new criterion of homogeneity, consisting of the material parameter ( Ar ), operating parameters ( H 0 , u/u mf ) and vibration parameters ( a , ω), is proposed to predict a suitable range of homogeneous fluidization. Experimental results on eight kinds of solids, five static bed heights and different vibration parameters were used to propose guidelines for the reasonable selection of operating conditions for vibrating fluidization and better operating conditions.