Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies

Detalhes bibliográficos
Autor(a) principal: Almeida, Ricardo
Data de Publicação: 2016
Outros Autores: Pinto, Manuel, Pinho, Paulo G., Lemos, Luís T. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.19/3419
Resumo: Indoor environmental conditions in classrooms, in particular temperature and indoor air quality, influence students’ health, attitude and performance. In recent years, several studies regarding indoor environmental quality of classrooms were published and natural ventilation proved to have great potential, particularly in southern European climate. This research aimed to evaluate indoor environmental conditions in eight schools and to assess their improvement potential by simple natural ventilation strategies. Temperature, relative humidity and carbon dioxide concentration were measured in 32 classrooms. Ventilation performance of the classrooms was characterized using two techniques, first by fan pressurization measurements of the envelope airtightness and later by tracer gas measurements of the air change rate assuming different envelope conditions. A total of 110 tracer gas measurements were made and the results validated ventilation protocols that were tested afterward. The results of the ventilation protocol implementation were encouraging and, overall, a decrease on the CO2 concentration was observed without modifying the comfort conditions. Nevertheless, additional measurements must be performed for winter conditions.
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spelling Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategiesEnvelope airtightnessAir change rateClassroomsIndoor air quality (IAQ)Indoor environmental quality (IEQ)Natural ventilationIndoor environmental conditions in classrooms, in particular temperature and indoor air quality, influence students’ health, attitude and performance. In recent years, several studies regarding indoor environmental quality of classrooms were published and natural ventilation proved to have great potential, particularly in southern European climate. This research aimed to evaluate indoor environmental conditions in eight schools and to assess their improvement potential by simple natural ventilation strategies. Temperature, relative humidity and carbon dioxide concentration were measured in 32 classrooms. Ventilation performance of the classrooms was characterized using two techniques, first by fan pressurization measurements of the envelope airtightness and later by tracer gas measurements of the air change rate assuming different envelope conditions. A total of 110 tracer gas measurements were made and the results validated ventilation protocols that were tested afterward. The results of the ventilation protocol implementation were encouraging and, overall, a decrease on the CO2 concentration was observed without modifying the comfort conditions. Nevertheless, additional measurements must be performed for winter conditions.SpringerRepositório Científico do Instituto Politécnico de ViseuAlmeida, RicardoPinto, ManuelPinho, Paulo G.Lemos, Luís T. de2016-11-16T10:05:29Z20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.19/3419engAlmeida, R. M. S. F., Pinto, M., Pinho, P. G., & Lemos, L. T. de. (2016). Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies. Energy Efficiency, 1–16.1570-646X10.1007/s12053-016-9485-0info: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:RCAAP2023-01-16T15:26:47Zoai:repositorio.ipv.pt:10400.19/3419Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:42:28.875894Repositório 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 Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
title Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
spellingShingle Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
Almeida, Ricardo
Envelope airtightness
Air change rate
Classrooms
Indoor air quality (IAQ)
Indoor environmental quality (IEQ)
Natural ventilation
title_short Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
title_full Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
title_fullStr Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
title_full_unstemmed Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
title_sort Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies
author Almeida, Ricardo
author_facet Almeida, Ricardo
Pinto, Manuel
Pinho, Paulo G.
Lemos, Luís T. de
author_role author
author2 Pinto, Manuel
Pinho, Paulo G.
Lemos, Luís T. de
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico de Viseu
dc.contributor.author.fl_str_mv Almeida, Ricardo
Pinto, Manuel
Pinho, Paulo G.
Lemos, Luís T. de
dc.subject.por.fl_str_mv Envelope airtightness
Air change rate
Classrooms
Indoor air quality (IAQ)
Indoor environmental quality (IEQ)
Natural ventilation
topic Envelope airtightness
Air change rate
Classrooms
Indoor air quality (IAQ)
Indoor environmental quality (IEQ)
Natural ventilation
description Indoor environmental conditions in classrooms, in particular temperature and indoor air quality, influence students’ health, attitude and performance. In recent years, several studies regarding indoor environmental quality of classrooms were published and natural ventilation proved to have great potential, particularly in southern European climate. This research aimed to evaluate indoor environmental conditions in eight schools and to assess their improvement potential by simple natural ventilation strategies. Temperature, relative humidity and carbon dioxide concentration were measured in 32 classrooms. Ventilation performance of the classrooms was characterized using two techniques, first by fan pressurization measurements of the envelope airtightness and later by tracer gas measurements of the air change rate assuming different envelope conditions. A total of 110 tracer gas measurements were made and the results validated ventilation protocols that were tested afterward. The results of the ventilation protocol implementation were encouraging and, overall, a decrease on the CO2 concentration was observed without modifying the comfort conditions. Nevertheless, additional measurements must be performed for winter conditions.
publishDate 2016
dc.date.none.fl_str_mv 2016-11-16T10:05:29Z
2016
2016-01-01T00:00:00Z
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/10400.19/3419
url http://hdl.handle.net/10400.19/3419
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Almeida, R. M. S. F., Pinto, M., Pinho, P. G., & Lemos, L. T. de. (2016). Natural ventilation and indoor air quality in educational buildings: experimental assessment and improvement strategies. Energy Efficiency, 1–16.
1570-646X
10.1007/s12053-016-9485-0
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 Springer
publisher.none.fl_str_mv Springer
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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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