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Effects of agglomerates on electrostatic behaviors in gas–solid fluidized beds

Yang, Yao, Huang, Zhengliang, Zhang, Wenbiao, Wang, Jingdai, Lungu, Musango, Liao, Zuwei, Wang, Fang, Yang, Yongrong, Yan, Yong, Yang, Jian and others. (2016) Effects of agglomerates on electrostatic behaviors in gas–solid fluidized beds. Powder Technology, 287 . pp. 139-151. ISSN 0032-5910. E-ISSN 1873-328X. (doi:10.1016/j.powtec.2015.10.014) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://doi.org/10.1016/j.powtec.2015.10.014

Abstract

This work for the first time shows that both falling polyethylene sheets and small agglomerates significantly affect the electrostatic behaviors in a fluidized bed. By cold model experiments, this work found that V-shaped fluctuations of induced electrostatic potentials were observed as a sheet fell to a certain position, and polarity reversals of induced electrostatic potentials were discovered as some small agglomerates were added and fluidized in the lower part of the bed. Further analysis found that the falling sheet could affect the particle concentration distribution in the bed as well as the surface charges of particles, and these two factors always had opposing effect on the induced electrostatic potential and thus caused V-shaped fluctuations to appear. The reason for the reversal of polarity as small agglomerates were added was the appearance of the positively charged agglomerates in the measuring sensitivity zone. This work opens up new possibilities for agglomerates detection.

Item Type: Article
DOI/Identification number: 10.1016/j.powtec.2015.10.014
Uncontrolled keywords: Fluidized bed; Agglomerates; Induced electrostatic potential; V-shaped fluctuation; Reversals of polarity; Competition effects
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: Tina Thompson
Date Deposited: 22 Jan 2016 12:37 UTC
Last Modified: 29 May 2019 16:54 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/53826 (The current URI for this page, for reference purposes)
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