Prediction of ceramic foams permeability using Ergun's equation

Detalhes bibliográficos
Autor(a) principal: Innocentini,Murilo D.M.
Data de Publicação: 1999
Outros Autores: Salvini,Vânia R., Macedo,Alvaro, Pandolfelli,Victor C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14391999000400008
Resumo: SiC-Al2O3 ceramic foams with 30 to 75 pores per linear inch (ppi) were used to access the application of pore size obtained by image analysis to estimate the cellular materials permeability through Ergun's equation. Samples were sliced and the pore size distribution, cross-sectional porosity and pore density were evaluated as a function of the slice thickness based on optical and X-ray computerized tomography acquired images. The average pore sizes were used to calculate permeability constants (k1 and k2) of Ergun's equation, which were compared to those experimentally obtained under water flow. Results indicated that the optical diameter distribution was very sensitive to the number of pore layers. Deviation between experimental and calculated values depended on the slice thickness. Nevertheless, the introduction of pore size obtained by image analysis into Ergun's equations seems to give fair results to assess the permeability of ceramic foams.
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spelling Prediction of ceramic foams permeability using Ergun's equationpermeabilityErgun's equationceramic foamsimage analysisSiC-Al2O3 ceramic foams with 30 to 75 pores per linear inch (ppi) were used to access the application of pore size obtained by image analysis to estimate the cellular materials permeability through Ergun's equation. Samples were sliced and the pore size distribution, cross-sectional porosity and pore density were evaluated as a function of the slice thickness based on optical and X-ray computerized tomography acquired images. The average pore sizes were used to calculate permeability constants (k1 and k2) of Ergun's equation, which were compared to those experimentally obtained under water flow. Results indicated that the optical diameter distribution was very sensitive to the number of pore layers. Deviation between experimental and calculated values depended on the slice thickness. Nevertheless, the introduction of pore size obtained by image analysis into Ergun's equations seems to give fair results to assess the permeability of ceramic foams.ABM, ABC, ABPol1999-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14391999000400008Materials Research v.2 n.4 1999reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14391999000400008info:eu-repo/semantics/openAccessInnocentini,Murilo D.M.Salvini,Vânia R.Macedo,AlvaroPandolfelli,Victor C.eng2000-01-28T00:00:00Zoai:scielo:S1516-14391999000400008Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2000-01-28T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Prediction of ceramic foams permeability using Ergun's equation
title Prediction of ceramic foams permeability using Ergun's equation
spellingShingle Prediction of ceramic foams permeability using Ergun's equation
Innocentini,Murilo D.M.
permeability
Ergun's equation
ceramic foams
image analysis
title_short Prediction of ceramic foams permeability using Ergun's equation
title_full Prediction of ceramic foams permeability using Ergun's equation
title_fullStr Prediction of ceramic foams permeability using Ergun's equation
title_full_unstemmed Prediction of ceramic foams permeability using Ergun's equation
title_sort Prediction of ceramic foams permeability using Ergun's equation
author Innocentini,Murilo D.M.
author_facet Innocentini,Murilo D.M.
Salvini,Vânia R.
Macedo,Alvaro
Pandolfelli,Victor C.
author_role author
author2 Salvini,Vânia R.
Macedo,Alvaro
Pandolfelli,Victor C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Innocentini,Murilo D.M.
Salvini,Vânia R.
Macedo,Alvaro
Pandolfelli,Victor C.
dc.subject.por.fl_str_mv permeability
Ergun's equation
ceramic foams
image analysis
topic permeability
Ergun's equation
ceramic foams
image analysis
description SiC-Al2O3 ceramic foams with 30 to 75 pores per linear inch (ppi) were used to access the application of pore size obtained by image analysis to estimate the cellular materials permeability through Ergun's equation. Samples were sliced and the pore size distribution, cross-sectional porosity and pore density were evaluated as a function of the slice thickness based on optical and X-ray computerized tomography acquired images. The average pore sizes were used to calculate permeability constants (k1 and k2) of Ergun's equation, which were compared to those experimentally obtained under water flow. Results indicated that the optical diameter distribution was very sensitive to the number of pore layers. Deviation between experimental and calculated values depended on the slice thickness. Nevertheless, the introduction of pore size obtained by image analysis into Ergun's equations seems to give fair results to assess the permeability of ceramic foams.
publishDate 1999
dc.date.none.fl_str_mv 1999-10-01
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=S1516-14391999000400008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14391999000400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14391999000400008
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.2 n.4 1999
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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