Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10316/103883 https://doi.org/10.3390/en14227584 |
Resumo: | Low-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for which preservation regulations often require that windows should remain unchanged. This research aims to investigate the impacts of low-E window films on the energy performance and thermal comfort of a three-story historical stone building in the cold climate of Sweden using the simulation software “IDA ICE”. On-site measurements were taken to acquire thermal and optical properties of the windows. This research shows that the application of the low-emissivity window film on the outward-facing surface of the inner pane of the double-glazed windows helped to reduce heat loss through the windows in winter and unwanted heat gains in summer by almost 36% and 35%, respectively. This resulted in a 6% reduction in the building’s annual energy consumption for heating purposes and a reduction in the percentage of total occupant hours with thermal dissatisfaction from 14% (without the film) to 11% (with the film). However, the relatively high price of the films and low price of district heating results in a rather long payback period of around 30 years. Thus, the films seem scarcely attractive from a purely economic viewpoint, but may be warranted for energy/environmental and thermal comfort reasons. |
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Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climatelow-E window filmsLCCIDA ICEbuilding energy simulationhistorical buildings retrofitLow-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for which preservation regulations often require that windows should remain unchanged. This research aims to investigate the impacts of low-E window films on the energy performance and thermal comfort of a three-story historical stone building in the cold climate of Sweden using the simulation software “IDA ICE”. On-site measurements were taken to acquire thermal and optical properties of the windows. This research shows that the application of the low-emissivity window film on the outward-facing surface of the inner pane of the double-glazed windows helped to reduce heat loss through the windows in winter and unwanted heat gains in summer by almost 36% and 35%, respectively. This resulted in a 6% reduction in the building’s annual energy consumption for heating purposes and a reduction in the percentage of total occupant hours with thermal dissatisfaction from 14% (without the film) to 11% (with the film). However, the relatively high price of the films and low price of district heating results in a rather long payback period of around 30 years. Thus, the films seem scarcely attractive from a purely economic viewpoint, but may be warranted for energy/environmental and thermal comfort reasons.MDPI2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/103883http://hdl.handle.net/10316/103883https://doi.org/10.3390/en14227584eng1996-1073Moghaddam, Saman AbolghasemiMattsson, MagnusAmeen, ArmanAkander, JanGameiro da Silva, ManuelSimões, Nunoinfo: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:RCAAP2022-12-07T21:37:13Zoai:estudogeral.uc.pt:10316/103883Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:20:38.917208Repositório 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 |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
title |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
spellingShingle |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate Moghaddam, Saman Abolghasemi low-E window films LCC IDA ICE building energy simulation historical buildings retrofit |
title_short |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
title_full |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
title_fullStr |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
title_full_unstemmed |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
title_sort |
Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate |
author |
Moghaddam, Saman Abolghasemi |
author_facet |
Moghaddam, Saman Abolghasemi Mattsson, Magnus Ameen, Arman Akander, Jan Gameiro da Silva, Manuel Simões, Nuno |
author_role |
author |
author2 |
Mattsson, Magnus Ameen, Arman Akander, Jan Gameiro da Silva, Manuel Simões, Nuno |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Moghaddam, Saman Abolghasemi Mattsson, Magnus Ameen, Arman Akander, Jan Gameiro da Silva, Manuel Simões, Nuno |
dc.subject.por.fl_str_mv |
low-E window films LCC IDA ICE building energy simulation historical buildings retrofit |
topic |
low-E window films LCC IDA ICE building energy simulation historical buildings retrofit |
description |
Low-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for which preservation regulations often require that windows should remain unchanged. This research aims to investigate the impacts of low-E window films on the energy performance and thermal comfort of a three-story historical stone building in the cold climate of Sweden using the simulation software “IDA ICE”. On-site measurements were taken to acquire thermal and optical properties of the windows. This research shows that the application of the low-emissivity window film on the outward-facing surface of the inner pane of the double-glazed windows helped to reduce heat loss through the windows in winter and unwanted heat gains in summer by almost 36% and 35%, respectively. This resulted in a 6% reduction in the building’s annual energy consumption for heating purposes and a reduction in the percentage of total occupant hours with thermal dissatisfaction from 14% (without the film) to 11% (with the film). However, the relatively high price of the films and low price of district heating results in a rather long payback period of around 30 years. Thus, the films seem scarcely attractive from a purely economic viewpoint, but may be warranted for energy/environmental and thermal comfort reasons. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
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/10316/103883 http://hdl.handle.net/10316/103883 https://doi.org/10.3390/en14227584 |
url |
http://hdl.handle.net/10316/103883 https://doi.org/10.3390/en14227584 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1996-1073 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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 |
repository.mail.fl_str_mv |
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1799134098466275328 |