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Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media

Bibliographic Details
Main Author: Reis, A. Heitor
Publication Date: 2005
Other Authors: Rosa, Rui
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10174/6476
Summary: The aim of this work is to show the importance of the sorption isotherms in the study of the heat and mass fluxes in unsaturated porous media. General forms of the heat and mass fluxes are presented in terms of experimentally accessible quantities. The role of the isotherm slope in the coupling of heat and mass fluxes and its influence on the effective permeability are shown. Separate relations for vapor and liquid fluxes through the porous medium are presented as functions of the temperature and the isotherm slopes. Nonstationary isothermal mass flux is also analyzed, a relaxation time for this process is identifled, and its relation to the isotherm slope is also discussed.
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spelling Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous MediaSorption isothermsPorous mediaThe aim of this work is to show the importance of the sorption isotherms in the study of the heat and mass fluxes in unsaturated porous media. General forms of the heat and mass fluxes are presented in terms of experimentally accessible quantities. The role of the isotherm slope in the coupling of heat and mass fluxes and its influence on the effective permeability are shown. Separate relations for vapor and liquid fluxes through the porous medium are presented as functions of the temperature and the isotherm slopes. Nonstationary isothermal mass flux is also analyzed, a relaxation time for this process is identifled, and its relation to the isotherm slope is also discussed.Begell House2012-12-05T21:08:14Z2012-12-052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/6476http://hdl.handle.net/10174/6476engA. Heitor Reis and Rui Rosa 2005 “Role of sorption isotherms in the analysis of coupled heat and mass flows in unsaturated porous media” J. of Porous Media, 8 (3): 259-269.1934-0508CGE; DFISahr@uevora.ptrrosa@uevora.pt357Reis, A. HeitorRosa, Ruiinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-01-03T18:46:05Zoai:dspace.uevora.pt:10174/6476Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T11:56:11.348514Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
title Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
spellingShingle Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
Reis, A. Heitor
Sorption isotherms
Porous media
title_short Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
title_full Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
title_fullStr Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
title_full_unstemmed Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
title_sort Role of Sorption Isotherms in the Analysis of Coupled Heat and Mass Fluxes in Porous Media
author Reis, A. Heitor
author_facet Reis, A. Heitor
Rosa, Rui
author_role author
author2 Rosa, Rui
author2_role author
dc.contributor.author.fl_str_mv Reis, A. Heitor
Rosa, Rui
dc.subject.por.fl_str_mv Sorption isotherms
Porous media
topic Sorption isotherms
Porous media
description The aim of this work is to show the importance of the sorption isotherms in the study of the heat and mass fluxes in unsaturated porous media. General forms of the heat and mass fluxes are presented in terms of experimentally accessible quantities. The role of the isotherm slope in the coupling of heat and mass fluxes and its influence on the effective permeability are shown. Separate relations for vapor and liquid fluxes through the porous medium are presented as functions of the temperature and the isotherm slopes. Nonstationary isothermal mass flux is also analyzed, a relaxation time for this process is identifled, and its relation to the isotherm slope is also discussed.
publishDate 2005
dc.date.none.fl_str_mv 2005-01-01T00:00:00Z
2012-12-05T21:08:14Z
2012-12-05
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/10174/6476
http://hdl.handle.net/10174/6476
url http://hdl.handle.net/10174/6476
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv A. Heitor Reis and Rui Rosa 2005 “Role of sorption isotherms in the analysis of coupled heat and mass flows in unsaturated porous media” J. of Porous Media, 8 (3): 259-269.
1934-0508
CGE; DFIS
ahr@uevora.pt
rrosa@uevora.pt
357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Begell House
publisher.none.fl_str_mv Begell House
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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