Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach

The local solid flow structure of gas-solid bubbling fluidized bed was investigated to identify and characterize the particle clusters. Extensive mathematical calculations were carried out using the energy-minimization multi-scale (EMMS) approach for evaluating cluster properties including the veloc...

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Main Authors: Farzaneh Moradgholi, Navid Mostoufi, Rahmat Sotudeh-Gharebagh
Format: Article
Language:English
Published: University of Tehran 2011-12-01
Series:Journal of Chemical and Petroleum Engineering
Subjects:
Online Access:https://jchpe.ut.ac.ir/article_1513.html
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author Farzaneh Moradgholi
Navid Mostoufi
Rahmat Sotudeh-Gharebagh
author_facet Farzaneh Moradgholi
Navid Mostoufi
Rahmat Sotudeh-Gharebagh
author_sort Farzaneh Moradgholi
collection DOAJ
description The local solid flow structure of gas-solid bubbling fluidized bed was investigated to identify and characterize the particle clusters. Extensive mathematical calculations were carried out using the energy-minimization multi-scale (EMMS) approach for evaluating cluster properties including the velocity, the size and the void fraction of clusters in the dense phase of the bed. The results showed that by increasing the gas velocity, the void fraction of clusters increases and also the larger portion of solids move in the bed in the form of cluster. Modeled results were in good agreement with the experimental data reported in literature in terms of the velocity, the size the void fraction of clusters. The results of this study help to comprehend the hydrodynamics of clusters in gas-solid bubbling fluidized beds.
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spelling doaj.art-6aa95214e2da49ae9d5522a82fc255752022-12-21T23:33:22ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212011-12-0145211712910.22059/JCHPE.2011.1513Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS ApproachFarzaneh Moradgholi0Navid Mostoufi1Rahmat Sotudeh-Gharebagh2Oil and Gas Processing Centre of Excellence, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, IranOil and Gas Processing Centre of Excellence, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, IranOil and Gas Processing Centre of Excellence, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, IranThe local solid flow structure of gas-solid bubbling fluidized bed was investigated to identify and characterize the particle clusters. Extensive mathematical calculations were carried out using the energy-minimization multi-scale (EMMS) approach for evaluating cluster properties including the velocity, the size and the void fraction of clusters in the dense phase of the bed. The results showed that by increasing the gas velocity, the void fraction of clusters increases and also the larger portion of solids move in the bed in the form of cluster. Modeled results were in good agreement with the experimental data reported in literature in terms of the velocity, the size the void fraction of clusters. The results of this study help to comprehend the hydrodynamics of clusters in gas-solid bubbling fluidized beds.https://jchpe.ut.ac.ir/article_1513.htmlEMMSBubbling fluidized bedCluster velocityCluster diameter
spellingShingle Farzaneh Moradgholi
Navid Mostoufi
Rahmat Sotudeh-Gharebagh
Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
Journal of Chemical and Petroleum Engineering
EMMS
Bubbling fluidized bed
Cluster velocity
Cluster diameter
title Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
title_full Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
title_fullStr Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
title_full_unstemmed Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
title_short Determination of Cluster Hydrodynamics in Bubbling Fluidized Beds by the EMMS Approach
title_sort determination of cluster hydrodynamics in bubbling fluidized beds by the emms approach
topic EMMS
Bubbling fluidized bed
Cluster velocity
Cluster diameter
url https://jchpe.ut.ac.ir/article_1513.html
work_keys_str_mv AT farzanehmoradgholi determinationofclusterhydrodynamicsinbubblingfluidizedbedsbytheemmsapproach
AT navidmostoufi determinationofclusterhydrodynamicsinbubblingfluidizedbedsbytheemmsapproach
AT rahmatsotudehgharebagh determinationofclusterhydrodynamicsinbubblingfluidizedbedsbytheemmsapproach