Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings

Detalhes bibliográficos
Autor(a) principal: Soares dos Reis, Alexandre
Data de Publicação: 2022
Outros Autores: Vaquero, Petra, Ferreira Dias, Marta, Tavares, Alice
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/36231
Resumo: Besides energy poverty, a certain tolerance to discomfort justifies Portugal's low heating energy consumption. Once Portuguese buildings stock, previous to 1990, has a weak energy performance, it is crucial to reflect on how to make renovations with more assertive benefits (besides energy), such as those related to the health and comfort of occupants. Hence, we have studied a single house in the TRNSYS dynamic simulation tool. We performed a sensitivity analysis by simulating the same building in three locations based on Portuguese climatic winter zones: I1 – Santarém, I2 – Santa Maria da Feira, and I3 – Guarda, for two ranges of wall insulation thickness, in free float. Considering Fanger's Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) as the Passive Discomfort Index IDP, results suggest that lowering 20 mm on the insulation thickness does not substantially impact occupants' discomfort in winter. As the variations between scenarios considering PPD > 15%, PMV < -1, or IDP (Tair < 18 ºC) are very similar, IDP could be an alternative to PMV/PPD for assessing thermal discomfort in dwellings.
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spelling Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellingsDwellingsIDPPMV/PPDThermal discomfortTRNSYSBesides energy poverty, a certain tolerance to discomfort justifies Portugal's low heating energy consumption. Once Portuguese buildings stock, previous to 1990, has a weak energy performance, it is crucial to reflect on how to make renovations with more assertive benefits (besides energy), such as those related to the health and comfort of occupants. Hence, we have studied a single house in the TRNSYS dynamic simulation tool. We performed a sensitivity analysis by simulating the same building in three locations based on Portuguese climatic winter zones: I1 – Santarém, I2 – Santa Maria da Feira, and I3 – Guarda, for two ranges of wall insulation thickness, in free float. Considering Fanger's Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) as the Passive Discomfort Index IDP, results suggest that lowering 20 mm on the insulation thickness does not substantially impact occupants' discomfort in winter. As the variations between scenarios considering PPD > 15%, PMV < -1, or IDP (Tair < 18 ºC) are very similar, IDP could be an alternative to PMV/PPD for assessing thermal discomfort in dwellings.Elsevier2023-02-06T11:12:31Z2022-07-21T00:00:00Z2022-07-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/36231eng10.1016/j.egyr.2022.07.128Soares dos Reis, AlexandreVaquero, PetraFerreira Dias, MartaTavares, Aliceinfo: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:RCAAP2024-02-22T12:10:02Zoai:ria.ua.pt:10773/36231Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:10.119593Repositório 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 discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
title Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
spellingShingle Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
Soares dos Reis, Alexandre
Dwellings
IDP
PMV/PPD
Thermal discomfort
TRNSYS
title_short Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
title_full Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
title_fullStr Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
title_full_unstemmed Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
title_sort Passive discomfort index as an alternative to predicted mean vote and predicted percentage of dissatisfied to assess occupant’s thermal discomfort in dwellings
author Soares dos Reis, Alexandre
author_facet Soares dos Reis, Alexandre
Vaquero, Petra
Ferreira Dias, Marta
Tavares, Alice
author_role author
author2 Vaquero, Petra
Ferreira Dias, Marta
Tavares, Alice
author2_role author
author
author
dc.contributor.author.fl_str_mv Soares dos Reis, Alexandre
Vaquero, Petra
Ferreira Dias, Marta
Tavares, Alice
dc.subject.por.fl_str_mv Dwellings
IDP
PMV/PPD
Thermal discomfort
TRNSYS
topic Dwellings
IDP
PMV/PPD
Thermal discomfort
TRNSYS
description Besides energy poverty, a certain tolerance to discomfort justifies Portugal's low heating energy consumption. Once Portuguese buildings stock, previous to 1990, has a weak energy performance, it is crucial to reflect on how to make renovations with more assertive benefits (besides energy), such as those related to the health and comfort of occupants. Hence, we have studied a single house in the TRNSYS dynamic simulation tool. We performed a sensitivity analysis by simulating the same building in three locations based on Portuguese climatic winter zones: I1 – Santarém, I2 – Santa Maria da Feira, and I3 – Guarda, for two ranges of wall insulation thickness, in free float. Considering Fanger's Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) as the Passive Discomfort Index IDP, results suggest that lowering 20 mm on the insulation thickness does not substantially impact occupants' discomfort in winter. As the variations between scenarios considering PPD > 15%, PMV < -1, or IDP (Tair < 18 ºC) are very similar, IDP could be an alternative to PMV/PPD for assessing thermal discomfort in dwellings.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-21T00:00:00Z
2022-07-21
2023-02-06T11:12:31Z
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/10773/36231
url http://hdl.handle.net/10773/36231
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1016/j.egyr.2022.07.128
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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