Analysis of effective solid stresses in a conical spouted bed
Autor(a) principal: | |
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Data de Publicação: | 1999 |
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=S0104-66321999000400011 |
Resumo: | Some applications of spouted beds have been limited by problems with spout stability. In order to overcome these limitations, research should be concentrated on describing the mechanism by which the spout is developed. This work presents a theoretical and experimental study to describe the effective solid stress distribution in the annular region of a conical spouted bed. From experimental observation, the failure state of the bed of particles at the outset of spouting is identified and related to fluid-particle properties and column dimensions. Linear and angular momentum balances for the solid phase are then formulated as a function of the bed failure state. The set of equations obtained is solved using numerical methods, and results regarding stress distribution, stability and spout shape are presented and discussed. |
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Brazilian Journal of Chemical Engineering |
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Analysis of effective solid stresses in a conical spouted bedtypes of failuresolid stress distributionpressure dropspout shapeSome applications of spouted beds have been limited by problems with spout stability. In order to overcome these limitations, research should be concentrated on describing the mechanism by which the spout is developed. This work presents a theoretical and experimental study to describe the effective solid stress distribution in the annular region of a conical spouted bed. From experimental observation, the failure state of the bed of particles at the outset of spouting is identified and related to fluid-particle properties and column dimensions. Linear and angular momentum balances for the solid phase are then formulated as a function of the bed failure state. The set of equations obtained is solved using numerical methods, and results regarding stress distribution, stability and spout shape are presented and discussed.Brazilian Society of Chemical Engineering1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321999000400011Brazilian Journal of Chemical Engineering v.16 n.4 1999reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66321999000400011info:eu-repo/semantics/openAccessCHARBEL,A. L. T.MASSARANI,G.PASSOS,M. L.eng2000-03-01T00:00:00Zoai:scielo:S0104-66321999000400011Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2000-03-01T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Analysis of effective solid stresses in a conical spouted bed |
title |
Analysis of effective solid stresses in a conical spouted bed |
spellingShingle |
Analysis of effective solid stresses in a conical spouted bed CHARBEL,A. L. T. types of failure solid stress distribution pressure drop spout shape |
title_short |
Analysis of effective solid stresses in a conical spouted bed |
title_full |
Analysis of effective solid stresses in a conical spouted bed |
title_fullStr |
Analysis of effective solid stresses in a conical spouted bed |
title_full_unstemmed |
Analysis of effective solid stresses in a conical spouted bed |
title_sort |
Analysis of effective solid stresses in a conical spouted bed |
author |
CHARBEL,A. L. T. |
author_facet |
CHARBEL,A. L. T. MASSARANI,G. PASSOS,M. L. |
author_role |
author |
author2 |
MASSARANI,G. PASSOS,M. L. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
CHARBEL,A. L. T. MASSARANI,G. PASSOS,M. L. |
dc.subject.por.fl_str_mv |
types of failure solid stress distribution pressure drop spout shape |
topic |
types of failure solid stress distribution pressure drop spout shape |
description |
Some applications of spouted beds have been limited by problems with spout stability. In order to overcome these limitations, research should be concentrated on describing the mechanism by which the spout is developed. This work presents a theoretical and experimental study to describe the effective solid stress distribution in the annular region of a conical spouted bed. From experimental observation, the failure state of the bed of particles at the outset of spouting is identified and related to fluid-particle properties and column dimensions. Linear and angular momentum balances for the solid phase are then formulated as a function of the bed failure state. The set of equations obtained is solved using numerical methods, and results regarding stress distribution, stability and spout shape are presented and discussed. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-12-01 |
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=S0104-66321999000400011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66321999000400011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66321999000400011 |
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.16 n.4 1999 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_ |
1754213170679906304 |