Integrated approach on solar drying, pilot convective drying and microstructural changes
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.14/3387 |
Resumo: | Solar drying of foods is an old technique, still used nowadays. Nevertheless, the mathematical approach of the complex phenomena involved is not completely integrated. Drawbacks appear in modelling heat transport, specially related to the huge variability of meteorological factors. The great dependence of the heat and mass transfer model parameters on water content is also frequently forgotten. Macroscopic changes (e.g. shrinkage) that occur during drying processes, are usually not considered in mass transfer equations, also affecting the predictive ability of the models. The objective of this work was to develop the mathematical basis and considerations for integrating heat and mass transfer phenomena, taking into consideration macroscopic changes and their correlation to changes at microscopic level (e.g. cellular shrinkage), that might occur during solar drying of grapes. |
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Integrated approach on solar drying, pilot convective drying and microstructural changesDryingSolar dryingMicrostructureMass transferHeat transferSolar drying of foods is an old technique, still used nowadays. Nevertheless, the mathematical approach of the complex phenomena involved is not completely integrated. Drawbacks appear in modelling heat transport, specially related to the huge variability of meteorological factors. The great dependence of the heat and mass transfer model parameters on water content is also frequently forgotten. Macroscopic changes (e.g. shrinkage) that occur during drying processes, are usually not considered in mass transfer equations, also affecting the predictive ability of the models. The objective of this work was to develop the mathematical basis and considerations for integrating heat and mass transfer phenomena, taking into consideration macroscopic changes and their correlation to changes at microscopic level (e.g. cellular shrinkage), that might occur during solar drying of grapes.ElsevierVeritati - Repositório Institucional da Universidade Católica PortuguesaRamos, Inês N.Brandão, Teresa R. S.Silva, Cristina L. M.2010-11-11T16:31:56Z20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/3387engRAMOS, Inês N. ; BRANDÃO, Teresa R. S. ; SILVA , Cristina L. M. - Integrated approach on solar drying, pilot convective drying and microstructural changes. Journal of Food Engineering. ISSN 0260-8774. Vol. 67, n.º 1-2 (2005), p. 195–203info: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:RCAAP2023-07-12T17:09:25Zoai:repositorio.ucp.pt:10400.14/3387Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:05:03.718225Repositório 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 |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
title |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
spellingShingle |
Integrated approach on solar drying, pilot convective drying and microstructural changes Ramos, Inês N. Drying Solar drying Microstructure Mass transfer Heat transfer |
title_short |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
title_full |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
title_fullStr |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
title_full_unstemmed |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
title_sort |
Integrated approach on solar drying, pilot convective drying and microstructural changes |
author |
Ramos, Inês N. |
author_facet |
Ramos, Inês N. Brandão, Teresa R. S. Silva, Cristina L. M. |
author_role |
author |
author2 |
Brandão, Teresa R. S. Silva, Cristina L. M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Veritati - Repositório Institucional da Universidade Católica Portuguesa |
dc.contributor.author.fl_str_mv |
Ramos, Inês N. Brandão, Teresa R. S. Silva, Cristina L. M. |
dc.subject.por.fl_str_mv |
Drying Solar drying Microstructure Mass transfer Heat transfer |
topic |
Drying Solar drying Microstructure Mass transfer Heat transfer |
description |
Solar drying of foods is an old technique, still used nowadays. Nevertheless, the mathematical approach of the complex phenomena involved is not completely integrated. Drawbacks appear in modelling heat transport, specially related to the huge variability of meteorological factors. The great dependence of the heat and mass transfer model parameters on water content is also frequently forgotten. Macroscopic changes (e.g. shrinkage) that occur during drying processes, are usually not considered in mass transfer equations, also affecting the predictive ability of the models. The objective of this work was to develop the mathematical basis and considerations for integrating heat and mass transfer phenomena, taking into consideration macroscopic changes and their correlation to changes at microscopic level (e.g. cellular shrinkage), that might occur during solar drying of grapes. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2005-01-01T00:00:00Z 2010-11-11T16:31:56Z |
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/10400.14/3387 |
url |
http://hdl.handle.net/10400.14/3387 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
RAMOS, Inês N. ; BRANDÃO, Teresa R. S. ; SILVA , Cristina L. M. - Integrated approach on solar drying, pilot convective drying and microstructural changes. Journal of Food Engineering. ISSN 0260-8774. Vol. 67, n.º 1-2 (2005), p. 195–203 |
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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1799131712941195264 |