Permeability and effective thermal conductivity of bisized porous media

Detalhes bibliográficos
Autor(a) principal: Dias, Ricardo P.
Data de Publicação: 2007
Outros Autores: Fernandes, Carla S., Mota, M., 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: https://hdl.handle.net/1822/6305
Resumo: In the region of minimum porosity of particulate binary mixtures, heat exchange and permeability were found to be higher than the ones obtained with a mono-size packing built with the same small size particles used in the binary packing. This effect was noticed in the range of the particles size ratio 0.1–1.0. The obtained improvement on thermal performance is related to the increase of effective thermal conductivity (ETC) in the binary packing and to the increase in transversal thermal dispersion due to the porosity decrease and tortuosity increase. Permeability can increase by a factor of two, if the size ratio between small and large spheres of a loose packing stays in the range 0.3–0.5.
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spelling Permeability and effective thermal conductivity of bisized porous mediaFixed bedBinary particulate mixturesPermeabilityEffective thermal conductivityScience & TechnologyIn the region of minimum porosity of particulate binary mixtures, heat exchange and permeability were found to be higher than the ones obtained with a mono-size packing built with the same small size particles used in the binary packing. This effect was noticed in the range of the particles size ratio 0.1–1.0. The obtained improvement on thermal performance is related to the increase of effective thermal conductivity (ETC) in the binary packing and to the increase in transversal thermal dispersion due to the porosity decrease and tortuosity increase. Permeability can increase by a factor of two, if the size ratio between small and large spheres of a loose packing stays in the range 0.3–0.5.Fundação para a Ciência e a Tecnologia (FCT) - POCI/EQU/58337/2004Elsevier Ltd.Universidade do MinhoDias, Ricardo P.Fernandes, Carla S.Mota, M.Teixeira, J. A.Yelshin, Alexander2007-042007-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/6305engDias, R. P., Fernandes, C. S., Mota, M., Teixeira, J. A., & Yelshin, A. (2007, April). Permeability and effective thermal conductivity of bisized porous media. International Journal of Heat and Mass Transfer. Elsevier BV. http://doi.org/10.1016/j.ijheatmasstransfer.2006.09.0390017-931010.1016/j.ijheatmasstransfer.2006.09.039https://www.sciencedirect.com/science/article/pii/S0017931006006557info: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:RCAAP2023-07-21T11:59:37Zoai:repositorium.sdum.uminho.pt:1822/6305Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:49:25.887651Repositório 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 Permeability and effective thermal conductivity of bisized porous media
title Permeability and effective thermal conductivity of bisized porous media
spellingShingle Permeability and effective thermal conductivity of bisized porous media
Dias, Ricardo P.
Fixed bed
Binary particulate mixtures
Permeability
Effective thermal conductivity
Science & Technology
title_short Permeability and effective thermal conductivity of bisized porous media
title_full Permeability and effective thermal conductivity of bisized porous media
title_fullStr Permeability and effective thermal conductivity of bisized porous media
title_full_unstemmed Permeability and effective thermal conductivity of bisized porous media
title_sort Permeability and effective thermal conductivity of bisized porous media
author Dias, Ricardo P.
author_facet Dias, Ricardo P.
Fernandes, Carla S.
Mota, M.
Teixeira, J. A.
Yelshin, Alexander
author_role author
author2 Fernandes, Carla S.
Mota, M.
Teixeira, J. A.
Yelshin, Alexander
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Dias, Ricardo P.
Fernandes, Carla S.
Mota, M.
Teixeira, J. A.
Yelshin, Alexander
dc.subject.por.fl_str_mv Fixed bed
Binary particulate mixtures
Permeability
Effective thermal conductivity
Science & Technology
topic Fixed bed
Binary particulate mixtures
Permeability
Effective thermal conductivity
Science & Technology
description In the region of minimum porosity of particulate binary mixtures, heat exchange and permeability were found to be higher than the ones obtained with a mono-size packing built with the same small size particles used in the binary packing. This effect was noticed in the range of the particles size ratio 0.1–1.0. The obtained improvement on thermal performance is related to the increase of effective thermal conductivity (ETC) in the binary packing and to the increase in transversal thermal dispersion due to the porosity decrease and tortuosity increase. Permeability can increase by a factor of two, if the size ratio between small and large spheres of a loose packing stays in the range 0.3–0.5.
publishDate 2007
dc.date.none.fl_str_mv 2007-04
2007-04-01T00:00:00Z
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 https://hdl.handle.net/1822/6305
url https://hdl.handle.net/1822/6305
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dias, R. P., Fernandes, C. S., Mota, M., Teixeira, J. A., & Yelshin, A. (2007, April). Permeability and effective thermal conductivity of bisized porous media. International Journal of Heat and Mass Transfer. Elsevier BV. http://doi.org/10.1016/j.ijheatmasstransfer.2006.09.039
0017-9310
10.1016/j.ijheatmasstransfer.2006.09.039
https://www.sciencedirect.com/science/article/pii/S0017931006006557
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 Ltd.
publisher.none.fl_str_mv Elsevier Ltd.
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
repository.mail.fl_str_mv
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