Improved methodology for the characterization of thermochromic coatings for adaptive façades

Recent simulation studies conclude that the use of thermochromic (TC) materials at facade coatings has strong potential to reduce the energy demand of the building and the urban heat island effect. However, an improved methodology for the characterization of TC materials is necessary to obtain reali...

Descripción completa

Detalles Bibliográficos
Autores: Pérez Álvarez-Quiñones, Gloria, Sirvent, Paloma, Sánchez-García, J. A., Guerrero Bustos, Ana María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/258247
Acceso en línea:http://hdl.handle.net/10261/258247
Access Level:acceso abierto
Palabra clave:Thermochromic mortar
Adaptive facades
Optical characterization
Thermal monitoring
Outdoor performance
Sustainable building
id ES_ad26fcdea7ff540dc0191be3b9aee66d
oai_identifier_str oai:digital.csic.es:10261/258247
network_acronym_str ES
network_name_str España
repository_id_str
spelling Improved methodology for the characterization of thermochromic coatings for adaptive façadesPérez Álvarez-Quiñones, GloriaSirvent, PalomaSánchez-García, J. A.Guerrero Bustos, Ana MaríaThermochromic mortarAdaptive facadesOptical characterizationThermal monitoringOutdoor performanceSustainable buildingRecent simulation studies conclude that the use of thermochromic (TC) materials at facade coatings has strong potential to reduce the energy demand of the building and the urban heat island effect. However, an improved methodology for the characterization of TC materials is necessary to obtain realistic simulations and to validate the simulated thermal behavior through affordable tests. In this context, the detailed variation of the optical performance of a TC mortar is characterized in this work under dynamic conditions, both for increasing and decreasing temperatures. The specific solar reflectance is determined for each temperature within the transition range with a resolution of 1 °C. The key factor is to couple the time for each measurement and the rate of temperature variation of the material. Furthermore, an affordable setup is defined to quantify the effect of the TC mortar on the surface temperature of facades compared to conventional coatings. The configuration adequately reproduces the relative orientation of facade coatings with respect to solar radiation. In addition, it ensures comparable exposure to solar radiation on all surfaces under analysis. Outdoor tests are carried out during three periods that represent the autumn, winter and summer climates in Madrid (Spain) and the experimental results are consistent with previous energy simulations. The methodology proposed in this work will be useful for the characterization of TC materials with greater durability currently under development. It will allow for more precise energy simulations and quantitative estimates of the effect of TC façade cladding on the sustainability of buildings.This work was supported by Ministry of Economy, Industry and Competitiveness of Spain [project BIA2014-56827-R]. Dr. Paloma Sirvent work was supported by the Department of Education, Youth and Sports of Madrid and the European Social Fund, through the Youth Employment Initiative [PEJD-2018-POST/IND-8684].ElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/258247reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2014-56827-Rhttp://dx.doi.org/10.1016/j.solener.2021.10.062Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2582472026-05-22T06:33:51Z
dc.title.none.fl_str_mv Improved methodology for the characterization of thermochromic coatings for adaptive façades
title Improved methodology for the characterization of thermochromic coatings for adaptive façades
spellingShingle Improved methodology for the characterization of thermochromic coatings for adaptive façades
Pérez Álvarez-Quiñones, Gloria
Thermochromic mortar
Adaptive facades
Optical characterization
Thermal monitoring
Outdoor performance
Sustainable building
title_short Improved methodology for the characterization of thermochromic coatings for adaptive façades
title_full Improved methodology for the characterization of thermochromic coatings for adaptive façades
title_fullStr Improved methodology for the characterization of thermochromic coatings for adaptive façades
title_full_unstemmed Improved methodology for the characterization of thermochromic coatings for adaptive façades
title_sort Improved methodology for the characterization of thermochromic coatings for adaptive façades
dc.creator.none.fl_str_mv Pérez Álvarez-Quiñones, Gloria
Sirvent, Paloma
Sánchez-García, J. A.
Guerrero Bustos, Ana María
author Pérez Álvarez-Quiñones, Gloria
author_facet Pérez Álvarez-Quiñones, Gloria
Sirvent, Paloma
Sánchez-García, J. A.
Guerrero Bustos, Ana María
author_role author
author2 Sirvent, Paloma
Sánchez-García, J. A.
Guerrero Bustos, Ana María
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Thermochromic mortar
Adaptive facades
Optical characterization
Thermal monitoring
Outdoor performance
Sustainable building
topic Thermochromic mortar
Adaptive facades
Optical characterization
Thermal monitoring
Outdoor performance
Sustainable building
description Recent simulation studies conclude that the use of thermochromic (TC) materials at facade coatings has strong potential to reduce the energy demand of the building and the urban heat island effect. However, an improved methodology for the characterization of TC materials is necessary to obtain realistic simulations and to validate the simulated thermal behavior through affordable tests. In this context, the detailed variation of the optical performance of a TC mortar is characterized in this work under dynamic conditions, both for increasing and decreasing temperatures. The specific solar reflectance is determined for each temperature within the transition range with a resolution of 1 °C. The key factor is to couple the time for each measurement and the rate of temperature variation of the material. Furthermore, an affordable setup is defined to quantify the effect of the TC mortar on the surface temperature of facades compared to conventional coatings. The configuration adequately reproduces the relative orientation of facade coatings with respect to solar radiation. In addition, it ensures comparable exposure to solar radiation on all surfaces under analysis. Outdoor tests are carried out during three periods that represent the autumn, winter and summer climates in Madrid (Spain) and the experimental results are consistent with previous energy simulations. The methodology proposed in this work will be useful for the characterization of TC materials with greater durability currently under development. It will allow for more precise energy simulations and quantitative estimates of the effect of TC façade cladding on the sustainability of buildings.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/258247
url http://hdl.handle.net/10261/258247
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/BIA2014-56827-R
http://dx.doi.org/10.1016/j.solener.2021.10.062
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869416416068763648
score 15,811543

Similares en LA Referencia