A model for cluster size in risers

Duvvuri, Subbarao (2010) A model for cluster size in risers. In: Annual Meeting of the American-Institute-of-Chemical-Engineers, NOV, 2008, Philadelphia, PA.

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Particles in gas-solid flows aggregate to move as "clusters" and simultaneously develop gas "voids" free of particles. A model for gas-solid flow in risers considering the presence of clusters and voids is presented. Equations are developed to estimate the size of clusters considering "ratio of cluster volume to void volume to be equal to the ratio of cluster volumetric fraction to void volumetric fraction in the bed". Estimates of cluster size compare well with the experimental observations reported in the literature. Equations developed for slip ratios and gas to particle effective drag coefficients are inline with the trends reported in the literature. (c) 2009 Elsevier B.V. All rights reserved.

Item Type:Conference or Workshop Item (Paper)
Impact Factor:Cites in 2009 to articles published in: 2008 = 626 Number of articles published in: 2008 = 372 2007 = 344 2007 = 184 Sum: 970 Sum: 556 Calculation: Cites to recent articles 970 = 1.745 Number of recent articles 556
Uncontrolled Keywords:Engineering, Chemical
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:2357
Deposited By: Mr Helmi Iskandar Suito
Deposited On:23 Jun 2010 13:05
Last Modified:19 Jan 2017 08:24

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