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PEPT study of particle motion for different riser exit geometries
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Chan, Chian Wen, Brems, Anke, Mahmoudi, Shiva, Baeyens, Jan, Seville, Jonathan P. K., Parker, David, Leadbeater, Thomas and Gargiuli, Joseph (2010) PEPT study of particle motion for different riser exit geometries. Particuology, Vol.8 (No.6). pp. 623-630. doi:10.1016/j.partic.2010.08.006 ISSN 1674-2001.
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Official URL: http://dx.doi.org/10.1016/j.partic.2010.08.006
Abstract
Laboratory and industrial risers are equipped with exits of many different layouts, and numerous publications discuss the influence of riser exit geometry on local and overall solids hydrodynamics in the riser. The present paper reviews literature findings mostly based upon indirect experimental techniques and often somewhat contradictory. Direct measurement of particle velocity and particle occupancy near and in the riser exit provide a better indication of the effect of riser exit geometry. Positron Emission Particle Tracking (PERT) was used in this work for the first time to investigate the exit region of the riser. An abrupt or sharp exit causes particles to be knocked out of the gas flow, so forming a recirculation or reflux region in the upper part of the riser. This is much less pronounced with a curved or gradual exit. (C) 2010 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Particuology | ||||
Publisher: | Elsevier | ||||
ISSN: | 1674-2001 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | Vol.8 | ||||
Number: | No.6 | ||||
Page Range: | pp. 623-630 | ||||
DOI: | 10.1016/j.partic.2010.08.006 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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