Electrostatic charge generation in gas-solid fluidized beds

被引：85
|
作者：
Mehrani, P [1 ]
Bi, HT [1 ]
Grace, JR [1 ]
机构：
[1] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z4, Canada
来源：
JOURNAL OF ELECTROSTATICS | 2005年 / 63卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
electrostatic charges; Faraday cup; fluidization; triboelectrification;
D O I：
10.1016/j.elstat.2004.10.003
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An on-line measurement technique was developed by applying the Faraday cup method to study the mechanism of charge generation inside gas-solid fluidized beds. The net charges generated inside the fluidized bed due to particle-gas contacting and gas ionization are examined. For the range of conditions studied, particle-gas contact and gas ionization have negligible effects on the particle charging mechanism. On the other hand, entrained fines leaving the top of the fluidization column carry charges out of the bed, resulting in build-up of a net charge inside the bed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：165 / 173
页数：9
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