Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.21814/ecum.5550 |
Resumo: | Highly glazed facades are usually responsible for significant heat exchanges that increase climatization energy needs. Thermochromic glazing, an innovative glazing solution, can autonomous and reversibly alter its properties depending on the temperature of the thermochromic layer laminated between the external glass panes, promoting the reduction of thermal gains and the increase of indoor comfort and energy efficiency. This study aims at assessing the energy performance of a thermochromic glazing against a conventional static glazing with and without a reflective solar control film, considering an individual office room oriented southeast as case study. A dynamic simulation, previously calibrated with experimental data, was used to compute the monthly and yearly energy needs (heating and cooling) and energy use (climatization and artificial lighting) with the different glazing solutions installed in the cities of Braganza, Lisbon and Faro, representative of different climate zones of Portugal. A reduction up to 65% of the cooling energy needs was obtained with the thermochromic glazing. The dynamic behaviour of the thermochromic glazing reduced indoor daylight levels, consequently increasing artificial lighting energy use. However, it was possible to achieve a reduction up to 50% of the total energy use (climatization and artificial lighting) with the dynamic glazing. |
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Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of PortugalAnalise Dinâmica do Desempenho Energético de um Envidraçado Termocrómico em Diferentes Zonas Climáticas de PortugalEnvidraçado termocrómico; Desempenho energético; Simulação dinâmica.Highly glazed facades are usually responsible for significant heat exchanges that increase climatization energy needs. Thermochromic glazing, an innovative glazing solution, can autonomous and reversibly alter its properties depending on the temperature of the thermochromic layer laminated between the external glass panes, promoting the reduction of thermal gains and the increase of indoor comfort and energy efficiency. This study aims at assessing the energy performance of a thermochromic glazing against a conventional static glazing with and without a reflective solar control film, considering an individual office room oriented southeast as case study. A dynamic simulation, previously calibrated with experimental data, was used to compute the monthly and yearly energy needs (heating and cooling) and energy use (climatization and artificial lighting) with the different glazing solutions installed in the cities of Braganza, Lisbon and Faro, representative of different climate zones of Portugal. A reduction up to 65% of the cooling energy needs was obtained with the thermochromic glazing. The dynamic behaviour of the thermochromic glazing reduced indoor daylight levels, consequently increasing artificial lighting energy use. However, it was possible to achieve a reduction up to 50% of the total energy use (climatization and artificial lighting) with the dynamic glazing.Fachadas de edifícios com grandes áreas envidraçadas tendem a promover trocas térmicas significativas que resultam em necessidades energéticas para climatização elevadas. Os envidraçados termocrómicos podem alterar de forma autónoma e reversível as suas propriedades térmicas e óticas dependendo da sua temperatura, promovendo a mitigação de ganhos térmicos e a melhoria de condições de conforto interior e eficiência energética. Este estudo tem como objetivo analisar o desempenho energético de um envidraçado termocrómico instalado num gabinete orientado a sudeste. Para esse fim, foi utilizado um modelo de simulação dinâmica, anteriormente calibrado com dados experimentais, para avaliar o desempenho energético anual do vidro termocrómico comparativamente ao de um envidraçado convencional incolor com e sem uma película refletora de controlo solar. As necessidades energéticas (aquecimento e arrefecimento) e o consumo energético (aquecimento, arrefecimento e iluminação artificial) foram obtidos para as diferentes soluções de envidraçados nas cidades de Bragança, Lisboa e Faro, representativas de diferentes zonas climáticas de Portugal. Com o envidraçado termocrómico obteve-se uma redução significativa, até 65%, das necessidades energéticas para arrefecimento. Apesar do comportamento dinâmico do envidraçado termocrómico e da diminuição das condições de iluminação natural do gabinete, foi possível obter uma redução do consumo anual energético total até 50%.CTAC2023-12-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.21814/ecum.5550https://doi.org/10.21814/ecum.5550Engenharia Civil UM; Nº 66 (2023); 28-37Engenharia Civil UM; Nº 66 (2023); 28-372795-59820873-1152reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPporhttps://revistas.uminho.pt/index.php/ecum/article/view/5550https://revistas.uminho.pt/index.php/ecum/article/view/5550/6227Teixeira, H.Glória Gomes, M.Moret Rodrigues, A.Aelenei, D.info:eu-repo/semantics/openAccess2024-01-06T09:20:19Zoai:journals.uminho.pt:article/5550Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:30:34.048697Repositório 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 |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal Analise Dinâmica do Desempenho Energético de um Envidraçado Termocrómico em Diferentes Zonas Climáticas de Portugal |
title |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
spellingShingle |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal Teixeira, H. Envidraçado termocrómico; Desempenho energético; Simulação dinâmica. |
title_short |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
title_full |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
title_fullStr |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
title_full_unstemmed |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
title_sort |
Dynamic Simulation of the Energy Performance of a Thermochromic Glazing Under Different Climate Zones of Portugal |
author |
Teixeira, H. |
author_facet |
Teixeira, H. Glória Gomes, M. Moret Rodrigues, A. Aelenei, D. |
author_role |
author |
author2 |
Glória Gomes, M. Moret Rodrigues, A. Aelenei, D. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Teixeira, H. Glória Gomes, M. Moret Rodrigues, A. Aelenei, D. |
dc.subject.por.fl_str_mv |
Envidraçado termocrómico; Desempenho energético; Simulação dinâmica. |
topic |
Envidraçado termocrómico; Desempenho energético; Simulação dinâmica. |
description |
Highly glazed facades are usually responsible for significant heat exchanges that increase climatization energy needs. Thermochromic glazing, an innovative glazing solution, can autonomous and reversibly alter its properties depending on the temperature of the thermochromic layer laminated between the external glass panes, promoting the reduction of thermal gains and the increase of indoor comfort and energy efficiency. This study aims at assessing the energy performance of a thermochromic glazing against a conventional static glazing with and without a reflective solar control film, considering an individual office room oriented southeast as case study. A dynamic simulation, previously calibrated with experimental data, was used to compute the monthly and yearly energy needs (heating and cooling) and energy use (climatization and artificial lighting) with the different glazing solutions installed in the cities of Braganza, Lisbon and Faro, representative of different climate zones of Portugal. A reduction up to 65% of the cooling energy needs was obtained with the thermochromic glazing. The dynamic behaviour of the thermochromic glazing reduced indoor daylight levels, consequently increasing artificial lighting energy use. However, it was possible to achieve a reduction up to 50% of the total energy use (climatization and artificial lighting) with the dynamic glazing. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-12-31 |
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 |
https://doi.org/10.21814/ecum.5550 https://doi.org/10.21814/ecum.5550 |
url |
https://doi.org/10.21814/ecum.5550 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.uminho.pt/index.php/ecum/article/view/5550 https://revistas.uminho.pt/index.php/ecum/article/view/5550/6227 |
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 |
CTAC |
publisher.none.fl_str_mv |
CTAC |
dc.source.none.fl_str_mv |
Engenharia Civil UM; Nº 66 (2023); 28-37 Engenharia Civil UM; Nº 66 (2023); 28-37 2795-5982 0873-1152 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 |
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