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標題: The effect of particle size distribution on minimum fluidization velocity at high temperature
作者: Lin, C.L.
Wey, M.Y.
You, S.D.
關鍵字: gas-solid fluidization;particle size distribution;minimum fluidization;velocity;incipient fluidization;bed;pressure;voidage
Project: Powder Technology
期刊/報告no:: Powder Technology, Volume 126, Issue 3, Page(s) 297-301.
The objective of this research is to study the effect of high temperature and particle size distribution (PSD) on minimum fluidization velocity (U-mf). Four particle size distributions of silica were fluidized in air at atmospheric pressure between 700 and 900 degreesC. The particle size distributions evaluated included a narrow cut, a binary mixture, a uniform distribution, and a Gaussian distribution, all with similar means. The experimental results revealed a minimum in U-mf near 800 degreesC. The reason might be that interparticle forces would be changed as temperature rose and increased the minimum fluidization velocity. The binary and uniform size distributions behaved similarly to each other but generally had higher U(mt)s than the Gaussian and narrow cut distributions. (C) 2002 Elsevier Science B.V. All rights reserved.
ISSN: 0032-5910
DOI: 10.1016/s0032-5910(02)00074-8
Appears in Collections:環境工程學系所

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