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3D simulation of the effects of sphericity on char entrainment in fluidised beds

Papadikis, K, Gu, S and Bridgwater, AV (2010) 3D simulation of the effects of sphericity on char entrainment in fluidised beds Fuel Processing Technology, 91 (7, Jul). pp. 749-758.

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Abstract

The paper presents a 3-dimensional simulation of the effect of particle shape on char entrainment in a bubbling fluidised bed reactor. Three char particles of 350 μm side length but of different shapes (cube, sphere, and tetrahedron) are injected into the fluidised bed and the momentum transport from the fluidising gas and fluidised sand is modelled. Due to the fluidising conditions, reactor design and particle shape the char particles will either be entrained from the reactor or remain inside the bubbling bed. The sphericity of the particles is the factor that differentiates the particle motion inside the reactor and their efficient entrainment out of it. The simulation has been performed with a completely revised momentum transport model for bubble three-phase flow, taking into account the sphericity factors, and has been applied as an extension to the commercial finite volume code FLUENT 6.3.

Item Type: Article
Authors :
NameEmailORCID
Papadikis, KUNSPECIFIEDUNSPECIFIED
Gu, SUNSPECIFIEDUNSPECIFIED
Bridgwater, AVUNSPECIFIEDUNSPECIFIED
Date : 12 March 2010
Funders : UK Engineering and Physical Sciences Research Council (EPSRC), Leverhulme-Royal Society Africa Award, EU FP7
Identification Number : 10.1016/j.fuproc.2010.02.008
Copyright Disclaimer : Copyright © 2016 Elsevier B.V. or its licensors or contributors.
Uncontrolled Keywords : CFD, Fluidized bed, Particle shape, Sphericity, Entrainment
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 10:59
Last Modified : 31 Oct 2017 18:15
URI: http://epubs.surrey.ac.uk/id/eprint/810577

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