Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings
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/10400.19/2396 |
Resumo: | In the recent past, residential buildings in temperate climates were ventilated by the daily opening of windows and by exaggerated window and door permeability. Energy conservation concerns have led to better quality windows and lower air permeability that consequently increased the risk of condensation whilst decreasing indoor air quality. Because of the variation in natural factors, such as wind speed and the stack effect, natural ventilation systems are unlikely to permanently provide ideal ventilation rates. As such, we will characterize the performance of hybrid ventilation systems (air intake through automatically regulated louvers in bedrooms and living rooms, natural exhaust in bathrooms and fan exhaust systems in kitchens) that are a possible solution to this drawback. In March of 2002 and January of 2003, we measured air change rates in a 2-bedroom apartment using the PFT technique. This method has the advantage of measuring air renewal rates in inhabited apartments during a reasonable period and thereby reveals air renewal rates in the dwelling and also in each compartment. This article will demonstrate the results obtained at a standard apartment and will present the experimental study characterising the hybrid ventilation system in a 100-apartment residential complex in the Porto area. The study evaluates the façade’s permeability and the respective air exchange rates per compartment using the PFT and the constant concentration techniques. |
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Experimental Characterization of Hybrid Ventilation Systems in Residential Buildingsventilationdwellingsair change rate (ACH)PFTconstant concentrationIn the recent past, residential buildings in temperate climates were ventilated by the daily opening of windows and by exaggerated window and door permeability. Energy conservation concerns have led to better quality windows and lower air permeability that consequently increased the risk of condensation whilst decreasing indoor air quality. Because of the variation in natural factors, such as wind speed and the stack effect, natural ventilation systems are unlikely to permanently provide ideal ventilation rates. As such, we will characterize the performance of hybrid ventilation systems (air intake through automatically regulated louvers in bedrooms and living rooms, natural exhaust in bathrooms and fan exhaust systems in kitchens) that are a possible solution to this drawback. In March of 2002 and January of 2003, we measured air change rates in a 2-bedroom apartment using the PFT technique. This method has the advantage of measuring air renewal rates in inhabited apartments during a reasonable period and thereby reveals air renewal rates in the dwelling and also in each compartment. This article will demonstrate the results obtained at a standard apartment and will present the experimental study characterising the hybrid ventilation system in a 100-apartment residential complex in the Porto area. The study evaluates the façade’s permeability and the respective air exchange rates per compartment using the PFT and the constant concentration techniques.Repositório Científico do Instituto Politécnico de ViseuPinto, ManuelFreitas, VascoViegas, João2014-12-02T01:30:06Z2005-09-212005-09-21T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.19/2396enginfo: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:RCAAP2023-01-16T15:25:39ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
title |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
spellingShingle |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings Pinto, Manuel ventilation dwellings air change rate (ACH) PFT constant concentration |
title_short |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
title_full |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
title_fullStr |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
title_full_unstemmed |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
title_sort |
Experimental Characterization of Hybrid Ventilation Systems in Residential Buildings |
author |
Pinto, Manuel |
author_facet |
Pinto, Manuel Freitas, Vasco Viegas, João |
author_role |
author |
author2 |
Freitas, Vasco Viegas, João |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico de Viseu |
dc.contributor.author.fl_str_mv |
Pinto, Manuel Freitas, Vasco Viegas, João |
dc.subject.por.fl_str_mv |
ventilation dwellings air change rate (ACH) PFT constant concentration |
topic |
ventilation dwellings air change rate (ACH) PFT constant concentration |
description |
In the recent past, residential buildings in temperate climates were ventilated by the daily opening of windows and by exaggerated window and door permeability. Energy conservation concerns have led to better quality windows and lower air permeability that consequently increased the risk of condensation whilst decreasing indoor air quality. Because of the variation in natural factors, such as wind speed and the stack effect, natural ventilation systems are unlikely to permanently provide ideal ventilation rates. As such, we will characterize the performance of hybrid ventilation systems (air intake through automatically regulated louvers in bedrooms and living rooms, natural exhaust in bathrooms and fan exhaust systems in kitchens) that are a possible solution to this drawback. In March of 2002 and January of 2003, we measured air change rates in a 2-bedroom apartment using the PFT technique. This method has the advantage of measuring air renewal rates in inhabited apartments during a reasonable period and thereby reveals air renewal rates in the dwelling and also in each compartment. This article will demonstrate the results obtained at a standard apartment and will present the experimental study characterising the hybrid ventilation system in a 100-apartment residential complex in the Porto area. The study evaluates the façade’s permeability and the respective air exchange rates per compartment using the PFT and the constant concentration techniques. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-09-21 2005-09-21T00:00:00Z 2014-12-02T01:30:06Z |
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/10400.19/2396 |
url |
http://hdl.handle.net/10400.19/2396 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
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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) |
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