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Prediction of the minimum fluidization velocity
Powder Technology, 1993Abstract Relations to determine the minimum fluidization velocity (umf) are tested statistically with 80 measurements reported in the literature on 20 different substances. All relevant relations (33 equations) can be reformulated as dimensions correlations in which the state of the fluidized bed is determined by the parameter Ar/Remf.
Bernard C. Lippens, Jan Mulder
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Minimum fluidization velocity of binary mixtures
The Canadian Journal of Chemical Engineering, 1989AbstractThe fast defluidization method was used to measure the minimum fluidization velocities of binary systems. Based on the experimental data obtained from the published literature and from this work, different correlations used for predicting the minimum fluidization velocities of binary systems were evaluated and compared.
Chien‐Song Chyang +2 more
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Minimum fluidization velocity and bed expansion of the inverse fluidized bed
Particulate Science and Technology, 2023To define the fluid-dynamic properties of inverse fluidized beds, studies of the minimum fluidization velocity and bed expansion were performed in this work. The experiments were performed in an inverse fluidized bed of polypropylene and polystyrene particles in a cylindrical column using water and an aqueous glycerol solution of different ...
Šućurović, Katarina +4 more
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Minimum Fluidization Velocity of Fine Particles
Materials Science Forum, 2008The minimum fluidization velocity is an important parameter in the design and operation of an industrial unit of fluidization. In the present work the minimum fluidization velocities of fine particles were obtained through two experimental methodologies.
Cássia Regina Cardoso +2 more
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Minimum fluidization velocity at high temperatures
Industrial & Engineering Chemistry Research, 1987Les recentes controverses sur la variation de la porosite du lit a fluidisation minimale a hautes temperatures, sont expliquees et reconciliees sur la base du schema de classification des poudres de Saxena et Ganzha et du champ d'ecoulement du fluide autour des particules correspondant, produisant les forces entre les particules mises en lumiere par ...
S. C. Saxena, A. Mathur
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Prediction of minimum fluidization velocity for vibrated fluidized bed
Powder Technology, 2003Abstract The prediction of minimum fluidization velocity for vibrated fluidized bed was performed. The Geldart group A and C particles were used as the fluidizing particles. The method based on Ergun equation was used to predict the minimum fluidization velocity. The calculated results were compared with the experimental data. The calculated results
Yoshihide Mawatari +2 more
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Minimum fluidization velocities of fluidized-bed coal-combustion solids
Powder Technology, 1991Abstract The minimum fluidization velocities of coal, char, limestone, lime and partially sulphated lime under typical AFBC conditions and at room temperature have been determined experimentally. On fitting the experimental data to a Wen and Yu type equation, the two fitted parameters are found to be highly sensitive to the fitting method used to ...
J. Adánez, J.C. Abanades
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Minimum liquid fluidization velocity in gas‐liquid‐solid fluidized beds
AIChE Journal, 1997AbstractAccurate detection of minimum liquid fluidization is essential to the successful operation of gas‐liquid‐solid fluidized beds, especially when particle or liquid properties evolve. A gas‐liqid‐solid system of 3‐mm glass beads exhibits three distinct flow regimes as the liquid velocity is increased: compacted, agitated and fluidized‐bed regmes ...
L. A. Briens +3 more
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