Specification of glazings for façades based on spectrophotometric characterization of transmittance
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/1822/73987 |
Resumo: | The correct specification of glazings for façades can reduce the energy consumption in buildings. The heat exchange occurs through transparent surfaces and radiation reaches the building as light and heat. Therefore, glazings significantly contribute to the heat transfer between outdoor and indoor spaces and act directly on daylighting and thermal comfort. This paper reports on the spectrophotometric characterization of glazings transmittance for the study of components of a modular façade system and its suitability for the climate of Portugal (temperate climate). The study focused on results of spectrophotometric measurements of optical properties, specifically the transmittance of some types of glazings (solar control, self-cleaning, low-e, float, and extra-clear) and two types of double glazings. The results show the percentage of transmission to ultraviolet, visible, and near-infrared regions and its importance, which enabled the analysis of the glazing efficiency regarding daylighting and the correlation to thermal performance. Subsidies and indications for the specification and adequate uses of transparent surfaces have been presented and complemented the datasheets available from the manufactures. |
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Specification of glazings for façades based on spectrophotometric characterization of transmittanceFaçadeGlazingSpecificationTransmittanceSpectrophotometer testsEnergy efficiencyScience & TechnologyThe correct specification of glazings for façades can reduce the energy consumption in buildings. The heat exchange occurs through transparent surfaces and radiation reaches the building as light and heat. Therefore, glazings significantly contribute to the heat transfer between outdoor and indoor spaces and act directly on daylighting and thermal comfort. This paper reports on the spectrophotometric characterization of glazings transmittance for the study of components of a modular façade system and its suitability for the climate of Portugal (temperate climate). The study focused on results of spectrophotometric measurements of optical properties, specifically the transmittance of some types of glazings (solar control, self-cleaning, low-e, float, and extra-clear) and two types of double glazings. The results show the percentage of transmission to ultraviolet, visible, and near-infrared regions and its importance, which enabled the analysis of the glazing efficiency regarding daylighting and the correlation to thermal performance. Subsidies and indications for the specification and adequate uses of transparent surfaces have been presented and complemented the datasheets available from the manufactures.This research was funded by Erasmus Mundus External Cooperation Window–ISAC: Improving Skills Across Continents (Framework Partnership Agreement 2008-1021/001 FRAMEECW L16 Coimbra, Specific Grant Agreement 2008-3628/001-001-MUN-ECW).Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoSacht, Helenice MariaBragança, L.Almeida, Manuela Guedes deCaram, Rosana2021-05-132021-05-13T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/73987engSacht, H.M.; Bragança, L.; Almeida, M.; Caram, R. Specification of Glazings for Façades Based on Spectrophotometric Characterization of Transmittance. Sustainability 2021, 13, 5437. https://doi.org/10.3390/su131054372071-105010.3390/su13105437https://www.mdpi.com/2071-1050/13/10/5437info: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:RCAAP2023-07-21T12:51:13Zoai:repositorium.sdum.uminho.pt:1822/73987Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:50:04.890834Repositório 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 |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
title |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
spellingShingle |
Specification of glazings for façades based on spectrophotometric characterization of transmittance Sacht, Helenice Maria Façade Glazing Specification Transmittance Spectrophotometer tests Energy efficiency Science & Technology |
title_short |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
title_full |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
title_fullStr |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
title_full_unstemmed |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
title_sort |
Specification of glazings for façades based on spectrophotometric characterization of transmittance |
author |
Sacht, Helenice Maria |
author_facet |
Sacht, Helenice Maria Bragança, L. Almeida, Manuela Guedes de Caram, Rosana |
author_role |
author |
author2 |
Bragança, L. Almeida, Manuela Guedes de Caram, Rosana |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Sacht, Helenice Maria Bragança, L. Almeida, Manuela Guedes de Caram, Rosana |
dc.subject.por.fl_str_mv |
Façade Glazing Specification Transmittance Spectrophotometer tests Energy efficiency Science & Technology |
topic |
Façade Glazing Specification Transmittance Spectrophotometer tests Energy efficiency Science & Technology |
description |
The correct specification of glazings for façades can reduce the energy consumption in buildings. The heat exchange occurs through transparent surfaces and radiation reaches the building as light and heat. Therefore, glazings significantly contribute to the heat transfer between outdoor and indoor spaces and act directly on daylighting and thermal comfort. This paper reports on the spectrophotometric characterization of glazings transmittance for the study of components of a modular façade system and its suitability for the climate of Portugal (temperate climate). The study focused on results of spectrophotometric measurements of optical properties, specifically the transmittance of some types of glazings (solar control, self-cleaning, low-e, float, and extra-clear) and two types of double glazings. The results show the percentage of transmission to ultraviolet, visible, and near-infrared regions and its importance, which enabled the analysis of the glazing efficiency regarding daylighting and the correlation to thermal performance. Subsidies and indications for the specification and adequate uses of transparent surfaces have been presented and complemented the datasheets available from the manufactures. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05-13 2021-05-13T00:00:00Z |
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/1822/73987 |
url |
http://hdl.handle.net/1822/73987 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sacht, H.M.; Bragança, L.; Almeida, M.; Caram, R. Specification of Glazings for Façades Based on Spectrophotometric Characterization of Transmittance. Sustainability 2021, 13, 5437. https://doi.org/10.3390/su13105437 2071-1050 10.3390/su13105437 https://www.mdpi.com/2071-1050/13/10/5437 |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (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 |
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 |
repository.mail.fl_str_mv |
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1799133084233236480 |