Image analysis of packed beds of spherical particles of different sizes

Detalhes bibliográficos
Autor(a) principal: Mota, M.
Data de Publicação: 1999
Outros Autores: Teixeira, J. A., Yelshin, Alexander
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/1316
Resumo: Two-dimensional simulations of packed beds composed of binary and ternary particle mixtures were made and image analysis of the bed structure was used to determine the bed porosity and tortuosity. Both the porosity and tortuosity were found to be dependent upon the volume fraction of the large particles. However, the volume fraction alone does not totally determine either the porosity or the tortuosity. For a bed of two different sizes of particles, its tortuosity may be considered a product of two quantities, the macro- and micro-tortuosity, each of which can be determined from the corresponding monosized particle beds.
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spelling Image analysis of packed beds of spherical particles of different sizesPacked bedSpherical particlesModellingPorosityTortuosityDiffusivityScience & TechnologyTwo-dimensional simulations of packed beds composed of binary and ternary particle mixtures were made and image analysis of the bed structure was used to determine the bed porosity and tortuosity. Both the porosity and tortuosity were found to be dependent upon the volume fraction of the large particles. However, the volume fraction alone does not totally determine either the porosity or the tortuosity. For a bed of two different sizes of particles, its tortuosity may be considered a product of two quantities, the macro- and micro-tortuosity, each of which can be determined from the corresponding monosized particle beds.Junta Nacional de Investigação Científica e Tecnológica (JNICT) - PRAXIS XXI - BBC/6440/95.ElsevierUniversidade do MinhoMota, M.Teixeira, J. A.Yelshin, Alexander19991999-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/1316eng“Separation and purification technology”. ISSN 1383-5866. 15 (1999) 59-68.1383-586610.1016/S1383-5866(98)00085-9info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:10:00Zoai:repositorium.sdum.uminho.pt:1822/1316Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:01:32.770684Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Image analysis of packed beds of spherical particles of different sizes
title Image analysis of packed beds of spherical particles of different sizes
spellingShingle Image analysis of packed beds of spherical particles of different sizes
Mota, M.
Packed bed
Spherical particles
Modelling
Porosity
Tortuosity
Diffusivity
Science & Technology
title_short Image analysis of packed beds of spherical particles of different sizes
title_full Image analysis of packed beds of spherical particles of different sizes
title_fullStr Image analysis of packed beds of spherical particles of different sizes
title_full_unstemmed Image analysis of packed beds of spherical particles of different sizes
title_sort Image analysis of packed beds of spherical particles of different sizes
author Mota, M.
author_facet Mota, M.
Teixeira, J. A.
Yelshin, Alexander
author_role author
author2 Teixeira, J. A.
Yelshin, Alexander
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Mota, M.
Teixeira, J. A.
Yelshin, Alexander
dc.subject.por.fl_str_mv Packed bed
Spherical particles
Modelling
Porosity
Tortuosity
Diffusivity
Science & Technology
topic Packed bed
Spherical particles
Modelling
Porosity
Tortuosity
Diffusivity
Science & Technology
description Two-dimensional simulations of packed beds composed of binary and ternary particle mixtures were made and image analysis of the bed structure was used to determine the bed porosity and tortuosity. Both the porosity and tortuosity were found to be dependent upon the volume fraction of the large particles. However, the volume fraction alone does not totally determine either the porosity or the tortuosity. For a bed of two different sizes of particles, its tortuosity may be considered a product of two quantities, the macro- and micro-tortuosity, each of which can be determined from the corresponding monosized particle beds.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/1316
url http://hdl.handle.net/1822/1316
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv “Separation and purification technology”. ISSN 1383-5866. 15 (1999) 59-68.
1383-5866
10.1016/S1383-5866(98)00085-9
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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