Fluidization characteristics of wide-size-distribution particles in the fluidized bed with heating plate
DOI:
https://doi.org/10.54097/hset.v77i.14416Keywords:
Heated Plate Flow, Fluidization Characteristics, Surface Gas.Abstract
To study the effect of heating plate on fluidization characteristics, the mean bed voidage, the axial solid concentration and pressure fluctuation under different superficial gas velocity were investigated. Experiments were conducted in a fluidized bed of 1500mm in height and 215 mm internal diameter with a conic bed. The results show that the internal heating fluidized bed has a little higher pressure drop, a little lower bed voidage, but a more stable fluidized state. The increase of the coalescence and breakage frequency of the bubbles can explain that the heating plate breaks the big bubbles well.
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M P. Tejero-Ezpeleta, S Buchholz , L Mleczko, Optimization of reaction conditions in a fluidized-bed for silane pyrolysis, Can. J. Chem. Eng., 2004, 82(3), 520-529.
G. Hsu, R. Hogle, N. Rohatgi, A. Morrison, Fines in fluidized bed silane pyrolysis, J. Electrochem. Soc., 1984, 131(3), 660-668.
A. S. Hull, Z Chen, J W Fritz, P. K. Agarwal, Influence of horizontal tube banks on the behavior of bubbling fluidized beds, Hydrodynamics Powder Technology, 1999,103( 3), 230-242.
B. W. Hedrick, T. Nguyen, Stripping process with disproportionately distributed openings on baffles, 2004.
D. Geldart, N. Harnby, A. C. Wong, Fluidization of cohesive powders, Powder Technology, 1984,37(1), 25-37.
X. H. Wang , S. Q. Gao , Y. H. Xu , J. S. Zhang, Gas-solids flow patterns in a novel dual-loop FCC riser, Powder Technology, 2005, 152(3), 90-99.
M.C. Shou, L.P. Leu, Energy of power spectral density function and wavelet analysis of absolute pressure fluctuation measurements in fluidized beds[J], Chem. Eng. Res. Design, 2005,83(5A), 478-491.
M. Deza, F. Battaglia. A CFD study of pressure fluctuations to determine fluidization regimes in gas-solid beds, J. Fluid. Eng., 2013, 135(10), 101301.
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