Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance

Detalhes bibliográficos
Autor(a) principal: Fernandes, Jorge Emanuel Pereira
Data de Publicação: 2019
Outros Autores: Mateus, Ricardo, Gervásio, Helena, Silva, Sandra Monteiro, Bragança, L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/60385
Resumo: In Portugal, there is a lack of quantitative studies on the thermal performance of earthen buildings. This paper aims at contributing to this research context by studying site-specific strategies, and the thermal performance and comfort conditions of a rammed earth building located in southern Portugal. The study is based on objective and subjective assessments and consists of assessing the hygrothermal conditions, thermal comfort levels and analysing the occupants? perception regarding thermal sensation. The results showed that the strategies used are closely related to local conditions, mitigating the effects of high summer temperatures and ensuring a good summer thermal performance by passive means alone. During the summer monitoring, results showed that the building stayed most of the time (80%) in Category I (high level of expectation) and the remaining time in Category II, according to the classification method defined by the standard EN15251. During the winter period, the building had the worst performance, being necessary a heating system to guarantee comfort conditions. Additionally, the results showed that the good thermal performance of the case study depended more on the high thermal inertia than on the U-value of the envelope. Limitations and advantages of the use of earthen construction elements are discussed.
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spelling Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performanceBioclimaticIndoor comfort evaluationPassive cooling strategiesRammed earthThermal performanceVernacular earthen architectureScience & TechnologyIn Portugal, there is a lack of quantitative studies on the thermal performance of earthen buildings. This paper aims at contributing to this research context by studying site-specific strategies, and the thermal performance and comfort conditions of a rammed earth building located in southern Portugal. The study is based on objective and subjective assessments and consists of assessing the hygrothermal conditions, thermal comfort levels and analysing the occupants? perception regarding thermal sensation. The results showed that the strategies used are closely related to local conditions, mitigating the effects of high summer temperatures and ensuring a good summer thermal performance by passive means alone. During the summer monitoring, results showed that the building stayed most of the time (80%) in Category I (high level of expectation) and the remaining time in Category II, according to the classification method defined by the standard EN15251. During the winter period, the building had the worst performance, being necessary a heating system to guarantee comfort conditions. Additionally, the results showed that the good thermal performance of the case study depended more on the high thermal inertia than on the U-value of the envelope. Limitations and advantages of the use of earthen construction elements are discussed.PD/BD/113641/2015info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoFernandes, Jorge Emanuel PereiraMateus, RicardoGervásio, HelenaSilva, Sandra MonteiroBragança, L.20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/60385engFernandes J. E. P., Mateus R., Gervásio H., Silva S. M., Bragança L. Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance, Renewable Energy, Vol. 142, Issue November 2019, pp. 345-363, doi:10.1016/j.renene.2019.04.098, 20190960-148110.1016/j.renene.2019.04.098https://www.sciencedirect.com/science/article/pii/S0960148119305828info: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:RCAAP2023-07-21T12:37:40Zoai:repositorium.sdum.uminho.pt:1822/60385Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:33:59.642622Repositório 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 Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
title Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
spellingShingle Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
Fernandes, Jorge Emanuel Pereira
Bioclimatic
Indoor comfort evaluation
Passive cooling strategies
Rammed earth
Thermal performance
Vernacular earthen architecture
Science & Technology
title_short Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
title_full Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
title_fullStr Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
title_full_unstemmed Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
title_sort Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance
author Fernandes, Jorge Emanuel Pereira
author_facet Fernandes, Jorge Emanuel Pereira
Mateus, Ricardo
Gervásio, Helena
Silva, Sandra Monteiro
Bragança, L.
author_role author
author2 Mateus, Ricardo
Gervásio, Helena
Silva, Sandra Monteiro
Bragança, L.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Fernandes, Jorge Emanuel Pereira
Mateus, Ricardo
Gervásio, Helena
Silva, Sandra Monteiro
Bragança, L.
dc.subject.por.fl_str_mv Bioclimatic
Indoor comfort evaluation
Passive cooling strategies
Rammed earth
Thermal performance
Vernacular earthen architecture
Science & Technology
topic Bioclimatic
Indoor comfort evaluation
Passive cooling strategies
Rammed earth
Thermal performance
Vernacular earthen architecture
Science & Technology
description In Portugal, there is a lack of quantitative studies on the thermal performance of earthen buildings. This paper aims at contributing to this research context by studying site-specific strategies, and the thermal performance and comfort conditions of a rammed earth building located in southern Portugal. The study is based on objective and subjective assessments and consists of assessing the hygrothermal conditions, thermal comfort levels and analysing the occupants? perception regarding thermal sensation. The results showed that the strategies used are closely related to local conditions, mitigating the effects of high summer temperatures and ensuring a good summer thermal performance by passive means alone. During the summer monitoring, results showed that the building stayed most of the time (80%) in Category I (high level of expectation) and the remaining time in Category II, according to the classification method defined by the standard EN15251. During the winter period, the building had the worst performance, being necessary a heating system to guarantee comfort conditions. Additionally, the results showed that the good thermal performance of the case study depended more on the high thermal inertia than on the U-value of the envelope. Limitations and advantages of the use of earthen construction elements are discussed.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01T00:00:00Z
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/1822/60385
url http://hdl.handle.net/1822/60385
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Fernandes J. E. P., Mateus R., Gervásio H., Silva S. M., Bragança L. Passive strategies used in Southern Portugal vernacular rammed earth buildings and their influence in thermal performance, Renewable Energy, Vol. 142, Issue November 2019, pp. 345-363, doi:10.1016/j.renene.2019.04.098, 2019
0960-1481
10.1016/j.renene.2019.04.098
https://www.sciencedirect.com/science/article/pii/S0960148119305828
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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