Logo do repositório
 
Publicação

Assessing energy, thermal and visual performance of photochromic glazing: From spectrophotometric characterization to building simulations

2026-05Artigo científico Acesso aberto
Ver registo simples
datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorTeixeira, Henriqueta
dc.contributor.authorMoret Rodrigues, António
dc.contributor.authorAelenei, Daniel
dc.contributor.authorGomes, Maria da Glória
dc.date.accessioned2026-07-03T15:16:29Z
dc.date.available2026-07-03T15:16:29Z
dc.date.issued2026-05
dc.description.abstractABSTRACT: Photochromic (PC) glazing is a promising smart glazing solution for enhancing buildings energy efficiency and indoor comfort through its ability to dynamically adjust its optical properties in response to solar radiation. However, studies assessing the global (energy, thermal and visual) performance of this technology are scarce. This work evaluates the performance of a clear double glazing incorporating a PC film. Spectrophotometric tests were first conducted to determine the thermal and optical properties of the PC film, revealing a dynamic visible transmittance and a low UV and near-infrared transmittance. Subsequently, a previously calibrated dynamic simulation model of an office room was used to assess the impact of the PC film on energy consumption (climatization energy needs and energy use considering an ideal air-conditioning system) and indoor comfort (in accordance with useful daylight illuminance, daylight glare index, predicted mean vote, adaptive thermal comfort model and Portuguese legislation) during working hours (9am-6 pm of weekdays) across the climates of three European cities (Lisbon, Berlin and London). The results show that PC glazing can reduce cooling demand in all studied climates. Total energy use decreased by up to 10% in the warmest of the studied climates, while slight increases were observed in the colder climates. Visual comfort improved significantly, with up to 24% and 74% more working hours with useful illuminance and imperceptible glare levels, respectively. Thermal comfort analysis revealed a negligible change in free-float conditions during working hours, and an improvement of up to 20% when the HVAC system was operating.eng
dc.identifier.citationTeixeira, H., Moret Rodrigues, A., Aelenei, D., & Gomes, M. G. (2026). Assessing energy, thermal and visual performance of photochromic glazing: From spectrophotometric characterization to building simulations. In: Energy and Buildings, 2026, vol. 364, article 117625. https://doi.org/10.1016/j.enbuild.2026.117625
dc.identifier.doi10.1016/j.enbuild.2026.117625
dc.identifier.issn0378-7788
dc.identifier.urihttp://hdl.handle.net/10400.9/6381
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationCivil Engineering Research and Innovation for Sustainability
dc.relationThermal, luminous, energy and environmental performance of smart glazing in building facades
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0378778826006857?pes=vor&utm_source=clarivate&getft_integrator=clarivate&__cf_chl_f_tk=IwMQ7OTRBS7ULykzBbttOOjnfpDdbEU_Fhs7dz0HB4s-1783089770-1.0.1.1-jbFSIvIcXHEcqWWq.9e0Lek3UJuHVNaNnMO54CV.r0Y
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectEnergy efficiency in buildings
dc.subjectEnergy performance
dc.subjectThermal comfort
dc.subjectGlazing areas
dc.subjectDynamic simulation
dc.titleAssessing energy, thermal and visual performance of photochromic glazing: From spectrophotometric characterization to building simulationseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUID/06438/2025
oaire.awardNumberPD/BD/150576/2020
oaire.awardTitleCivil Engineering Research and Innovation for Sustainability
oaire.awardTitleThermal, luminous, energy and environmental performance of smart glazing in building facades
oaire.awardURIhttp://hdl.handle.net/10400.9/6379
oaire.awardURIhttp://hdl.handle.net/10400.9/6380
oaire.citation.titleEnergy and Buildings
oaire.citation.volume364
oaire.fundingStreamAvaliação UID 2023/2024
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameTeixeira
person.familyNameMoret Rodrigues
person.familyNameAelenei
person.familyNameGomes
person.givenNameHenriqueta
person.givenNameAntónio
person.givenNameDaniel
person.givenNameMaria da Glória
person.identifier1508851
person.identifier.ciencia-id7314-A23E-E1B4
person.identifier.ciencia-idFE13-4FED-5672
person.identifier.orcid0000-0003-3391-1495
person.identifier.orcid0000-0002-6501-9189
person.identifier.orcid0000-0002-1007-1756
person.identifier.orcid0000-0003-1499-1370
person.identifier.ridI-1293-2012
person.identifier.scopus-author-id24337633200
person.identifier.scopus-author-id24171425000
relation.isAuthorOfPublicationeba62a33-0ee0-40f7-9666-ba20502bad02
relation.isAuthorOfPublication767d17a0-1091-43ce-acd8-361cf43abedd
relation.isAuthorOfPublication28a26066-9601-42e6-9adb-34afb945bbc2
relation.isAuthorOfPublication41d1fe08-db99-48dd-b851-8f3d0016992b
relation.isAuthorOfPublication.latestForDiscoveryeba62a33-0ee0-40f7-9666-ba20502bad02
relation.isProjectOfPublication58750aba-daf9-4739-853e-76c7d37e62a1
relation.isProjectOfPublication115a893b-47a3-4251-b7fb-eae28868f43d
relation.isProjectOfPublication.latestForDiscovery58750aba-daf9-4739-853e-76c7d37e62a1

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
Energy & Buildings 364 (2026) 117625.pdf
Tamanho:
9.52 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
4.03 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

ISE - Artigos em revistas internacionais