Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/89639
Title: On the electrostatics of pneumatic conveying of granular materials using electrical capacitance tomography
Authors: Zhu, K.
Rao, S.M.
Huang, Q.H.
Wang, C.-H. 
Matsusaka, S.
Masuda, H.
Keywords: Electrical capacitance tomography
Electrostatics
Granular materials
Pneumatic conveying
Issue Date: Aug-2004
Citation: Zhu, K., Rao, S.M., Huang, Q.H., Wang, C.-H., Matsusaka, S., Masuda, H. (2004-08). On the electrostatics of pneumatic conveying of granular materials using electrical capacitance tomography. Chemical Engineering Science 59 (15) : 3201-3213. ScholarBank@NUS Repository.
Abstract: In this work the electrostatics of the pneumatic conveying of granular materials in a non-conducting (PVC) pipe is studied using Electrical Capacitance Tomography (ECT) system. The non-conducting wall in general attains static charges arising from particle-wall collisions in the initial periods of conveying process and then reaches equilibrium with the surroundings. The polarity of particles and conveying pipe inner wall agrees reasonably well with the contact potential difference measurements. The perturbations in the capacitance signal due to charge accumulation are larger with smaller air superficial velocity. The denser flow regimes give larger wall residual charge. Wall charging process shows similar trend described by surface potential taken from electrostatic voltmeter to that revealed by ECT measurements. Also the addition of small amount (0.5% by weight) of anti-static agent (Larostat-519) in the powder form decreases the electrostatic charge generation by altering the dynamics of particle-particle and the particle-wall collisions. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Chemical Engineering Science
URI: http://scholarbank.nus.edu.sg/handle/10635/89639
ISSN: 00092509
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

33
checked on Feb 27, 2018

WEB OF SCIENCETM
Citations

23
checked on Apr 18, 2018

Page view(s)

21
checked on Apr 20, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.