The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100012 |
Resumo: | As reflected in the literature, solid-fluid flow characteristics in spouted beds can vary widely when particles are coated by a suspension. This work is aimed at describing the effect of interparticle forces on airflow distribution in conical spouted beds of inert particles coated by Eucalyptus black liquor. The simulator developed earlier is modified to incorporate this effect. Two corrective functions with adjustable parameters are introduced into the simulator gas-flow model to generate the minimum spouting conditions in beds wetted by this liquor. These functions are assumed to be dependent on characteristic suspension groups and bed height. Using the particle swarm optimization (PSO) technique, expressions for these functions are obtained. Simulated results are presented and discussed to validate this technique. Implications of these results on drying Eucalyptus black liquor in conical spouted beds are analyzed. |
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Brazilian Journal of Chemical Engineering |
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The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid bedsEucalyptus black liquorcohesive forcesminimum spouting conditionsAs reflected in the literature, solid-fluid flow characteristics in spouted beds can vary widely when particles are coated by a suspension. This work is aimed at describing the effect of interparticle forces on airflow distribution in conical spouted beds of inert particles coated by Eucalyptus black liquor. The simulator developed earlier is modified to incorporate this effect. Two corrective functions with adjustable parameters are introduced into the simulator gas-flow model to generate the minimum spouting conditions in beds wetted by this liquor. These functions are assumed to be dependent on characteristic suspension groups and bed height. Using the particle swarm optimization (PSO) technique, expressions for these functions are obtained. Simulated results are presented and discussed to validate this technique. Implications of these results on drying Eucalyptus black liquor in conical spouted beds are analyzed.Brazilian Society of Chemical Engineering2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100012Brazilian Journal of Chemical Engineering v.21 n.1 2004reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322004000100012info:eu-repo/semantics/openAccessTrindade,A. L. G.Passos,M. L.Costa Jr,E. F.Biscaia Jr,E. C.eng2004-01-14T00:00:00Zoai:scielo:S0104-66322004000100012Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2004-01-14T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
title |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
spellingShingle |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds Trindade,A. L. G. Eucalyptus black liquor cohesive forces minimum spouting conditions |
title_short |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
title_full |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
title_fullStr |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
title_full_unstemmed |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
title_sort |
The effect of interparticle cohesive forces on the simulation of fluid flow in spout-fluid beds |
author |
Trindade,A. L. G. |
author_facet |
Trindade,A. L. G. Passos,M. L. Costa Jr,E. F. Biscaia Jr,E. C. |
author_role |
author |
author2 |
Passos,M. L. Costa Jr,E. F. Biscaia Jr,E. C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Trindade,A. L. G. Passos,M. L. Costa Jr,E. F. Biscaia Jr,E. C. |
dc.subject.por.fl_str_mv |
Eucalyptus black liquor cohesive forces minimum spouting conditions |
topic |
Eucalyptus black liquor cohesive forces minimum spouting conditions |
description |
As reflected in the literature, solid-fluid flow characteristics in spouted beds can vary widely when particles are coated by a suspension. This work is aimed at describing the effect of interparticle forces on airflow distribution in conical spouted beds of inert particles coated by Eucalyptus black liquor. The simulator developed earlier is modified to incorporate this effect. Two corrective functions with adjustable parameters are introduced into the simulator gas-flow model to generate the minimum spouting conditions in beds wetted by this liquor. These functions are assumed to be dependent on characteristic suspension groups and bed height. Using the particle swarm optimization (PSO) technique, expressions for these functions are obtained. Simulated results are presented and discussed to validate this technique. Implications of these results on drying Eucalyptus black liquor in conical spouted beds are analyzed. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000100012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322004000100012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.21 n.1 2004 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213171528204288 |