A DEM study of bubble formation in Group B fluidized beds with and without cohesive inter-particle forces

Jai Kant Pandit; Xiao Shan Wang; Martin John Rhodes

doi:10.1016/j.ces.2006.08.013

A DEM study of bubble formation in Group B fluidized beds with and without cohesive inter-particle forces

Jai Kant Pandit, Xiao Shan Wang, Martin John Rhodes

Chemical & Biological Engineering

Research output: Contribution to journal › Article › Research › peer-review

31 Citations (Scopus)

Abstract

This paper presents a 2D soft-sphere discrete element method (DEM) simulation study of bubble formation in fluidized beds of Geldart Group B powders with and without externally imposed cohesive interparticle force. The effect of interparticle force on bubble formation and bubble characteristics is studied by inducing a single bubble at the centre of the distributor of a 2D bed that contains 36000 mono-sized particles having a diameter of 500 mu m and density of 1000 kg m(-3). It is observed that in the presence of externally imposed cohesive interparticle force, the bubble formation process not only requires a higher air velocity for its initiation, but it is also slower when compared to the case with no interparticle force. (c) 2006 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	159 - 166
Number of pages	8
Journal	Chemical Engineering Science
Volume	62
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ces.2006.08.013
Publication status	Published - 2007

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10.1016/j.ces.2006.08.013

Cite this

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title = "A DEM study of bubble formation in Group B fluidized beds with and without cohesive inter-particle forces",

abstract = "This paper presents a 2D soft-sphere discrete element method (DEM) simulation study of bubble formation in fluidized beds of Geldart Group B powders with and without externally imposed cohesive interparticle force. The effect of interparticle force on bubble formation and bubble characteristics is studied by inducing a single bubble at the centre of the distributor of a 2D bed that contains 36000 mono-sized particles having a diameter of 500 mu m and density of 1000 kg m(-3). It is observed that in the presence of externally imposed cohesive interparticle force, the bubble formation process not only requires a higher air velocity for its initiation, but it is also slower when compared to the case with no interparticle force. (c) 2006 Elsevier Ltd. All rights reserved.",

author = "Pandit, {Jai Kant} and Wang, {Xiao Shan} and Rhodes, {Martin John}",

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journal = "Chemical Engineering Science",

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AU - Pandit, Jai Kant

AU - Wang, Xiao Shan

AU - Rhodes, Martin John

PY - 2007

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N2 - This paper presents a 2D soft-sphere discrete element method (DEM) simulation study of bubble formation in fluidized beds of Geldart Group B powders with and without externally imposed cohesive interparticle force. The effect of interparticle force on bubble formation and bubble characteristics is studied by inducing a single bubble at the centre of the distributor of a 2D bed that contains 36000 mono-sized particles having a diameter of 500 mu m and density of 1000 kg m(-3). It is observed that in the presence of externally imposed cohesive interparticle force, the bubble formation process not only requires a higher air velocity for its initiation, but it is also slower when compared to the case with no interparticle force. (c) 2006 Elsevier Ltd. All rights reserved.

AB - This paper presents a 2D soft-sphere discrete element method (DEM) simulation study of bubble formation in fluidized beds of Geldart Group B powders with and without externally imposed cohesive interparticle force. The effect of interparticle force on bubble formation and bubble characteristics is studied by inducing a single bubble at the centre of the distributor of a 2D bed that contains 36000 mono-sized particles having a diameter of 500 mu m and density of 1000 kg m(-3). It is observed that in the presence of externally imposed cohesive interparticle force, the bubble formation process not only requires a higher air velocity for its initiation, but it is also slower when compared to the case with no interparticle force. (c) 2006 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.ces.2006.08.013

DO - 10.1016/j.ces.2006.08.013

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EP - 166

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JF - Chemical Engineering Science

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