Determining the infrared reflectance of specular surfaces by using thermographic analysis

Autores
Flores Larsen, Silvana Elinor; Hongn, Marcos Ezequiel
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Specular surfaces as glass, mirrors and metals are commonly used in solar devices and in building facades. Determining the temperature distribution of such kind of surfaces allows estimating their thermal losses and detecting hot spots and temperature gradients that provokes material stress and rupture. In this sense, thermography is a non-contact measurement technique that is capable to quickly scan and record these surface temperature distributions, but when specular materials are inspected the infrared reflectance becomes a crucial parameter. This work describes a methodology to measure the reflectance of specular materials for different incidence angles in the infrared range 8 μm–14 μm, by using a thermographic camera and an infrared radiation source. The methodology includes the analysis of errors in the estimation of the reflectance and how to select the temperature of the source that minimizes these errors. The method is applied to different specular surfaces commonly used in building facades and solar devices, whose infrared specular reflectances are estimated for different incidence angles. The obtained results are analyzed in order to provide valuable information for in-situ thermographic measurements of specular surfaces.
Fil: Flores Larsen, Silvana Elinor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; Argentina
Fil: Hongn, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; Argentina
Materia
Infrared Reflectance
Thermography
Infrared Optical Properties
Specular Materials
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22144
Acceder
id CONICETDig_2f89dbb07e29d27d5dda5f9be9d3b20b
oai_identifier_str oai:ri.conicet.gov.ar:11336/22144
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Determining the infrared reflectance of specular surfaces by using thermographic analysisFlores Larsen, Silvana ElinorHongn, Marcos EzequielInfrared ReflectanceThermographyInfrared Optical PropertiesSpecular Materialshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Specular surfaces as glass, mirrors and metals are commonly used in solar devices and in building facades. Determining the temperature distribution of such kind of surfaces allows estimating their thermal losses and detecting hot spots and temperature gradients that provokes material stress and rupture. In this sense, thermography is a non-contact measurement technique that is capable to quickly scan and record these surface temperature distributions, but when specular materials are inspected the infrared reflectance becomes a crucial parameter. This work describes a methodology to measure the reflectance of specular materials for different incidence angles in the infrared range 8 μm–14 μm, by using a thermographic camera and an infrared radiation source. The methodology includes the analysis of errors in the estimation of the reflectance and how to select the temperature of the source that minimizes these errors. The method is applied to different specular surfaces commonly used in building facades and solar devices, whose infrared specular reflectances are estimated for different incidence angles. The obtained results are analyzed in order to provide valuable information for in-situ thermographic measurements of specular surfaces.Fil: Flores Larsen, Silvana Elinor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; ArgentinaFil: Hongn, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; ArgentinaElsevier2013-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22144Flores Larsen, Silvana Elinor; Hongn, Marcos Ezequiel; Determining the infrared reflectance of specular surfaces by using thermographic analysis; Elsevier; Renewable Energy; 64; 12-2013; 306-3130960-1481CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2013.11.049info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0960148113006277info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:52:15Zoai:ri.conicet.gov.ar:11336/22144instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:52:15.716CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determining the infrared reflectance of specular surfaces by using thermographic analysis
title Determining the infrared reflectance of specular surfaces by using thermographic analysis
spellingShingle Determining the infrared reflectance of specular surfaces by using thermographic analysis
Flores Larsen, Silvana Elinor
Infrared Reflectance
Thermography
Infrared Optical Properties
Specular Materials
title_short Determining the infrared reflectance of specular surfaces by using thermographic analysis
title_full Determining the infrared reflectance of specular surfaces by using thermographic analysis
title_fullStr Determining the infrared reflectance of specular surfaces by using thermographic analysis
title_full_unstemmed Determining the infrared reflectance of specular surfaces by using thermographic analysis
title_sort Determining the infrared reflectance of specular surfaces by using thermographic analysis
dc.creator.none.fl_str_mv Flores Larsen, Silvana Elinor
Hongn, Marcos Ezequiel
author Flores Larsen, Silvana Elinor
author_facet Flores Larsen, Silvana Elinor
Hongn, Marcos Ezequiel
author_role author
author2 Hongn, Marcos Ezequiel
author2_role author
dc.subject.none.fl_str_mv Infrared Reflectance
Thermography
Infrared Optical Properties
Specular Materials
topic Infrared Reflectance
Thermography
Infrared Optical Properties
Specular Materials
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Specular surfaces as glass, mirrors and metals are commonly used in solar devices and in building facades. Determining the temperature distribution of such kind of surfaces allows estimating their thermal losses and detecting hot spots and temperature gradients that provokes material stress and rupture. In this sense, thermography is a non-contact measurement technique that is capable to quickly scan and record these surface temperature distributions, but when specular materials are inspected the infrared reflectance becomes a crucial parameter. This work describes a methodology to measure the reflectance of specular materials for different incidence angles in the infrared range 8 μm–14 μm, by using a thermographic camera and an infrared radiation source. The methodology includes the analysis of errors in the estimation of the reflectance and how to select the temperature of the source that minimizes these errors. The method is applied to different specular surfaces commonly used in building facades and solar devices, whose infrared specular reflectances are estimated for different incidence angles. The obtained results are analyzed in order to provide valuable information for in-situ thermographic measurements of specular surfaces.
Fil: Flores Larsen, Silvana Elinor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; Argentina
Fil: Hongn, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energia No Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energia No Convencional; Argentina
description Specular surfaces as glass, mirrors and metals are commonly used in solar devices and in building facades. Determining the temperature distribution of such kind of surfaces allows estimating their thermal losses and detecting hot spots and temperature gradients that provokes material stress and rupture. In this sense, thermography is a non-contact measurement technique that is capable to quickly scan and record these surface temperature distributions, but when specular materials are inspected the infrared reflectance becomes a crucial parameter. This work describes a methodology to measure the reflectance of specular materials for different incidence angles in the infrared range 8 μm–14 μm, by using a thermographic camera and an infrared radiation source. The methodology includes the analysis of errors in the estimation of the reflectance and how to select the temperature of the source that minimizes these errors. The method is applied to different specular surfaces commonly used in building facades and solar devices, whose infrared specular reflectances are estimated for different incidence angles. The obtained results are analyzed in order to provide valuable information for in-situ thermographic measurements of specular surfaces.
publishDate 2013
dc.date.none.fl_str_mv 2013-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/22144
Flores Larsen, Silvana Elinor; Hongn, Marcos Ezequiel; Determining the infrared reflectance of specular surfaces by using thermographic analysis; Elsevier; Renewable Energy; 64; 12-2013; 306-313
0960-1481
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22144
identifier_str_mv Flores Larsen, Silvana Elinor; Hongn, Marcos Ezequiel; Determining the infrared reflectance of specular surfaces by using thermographic analysis; Elsevier; Renewable Energy; 64; 12-2013; 306-313
0960-1481
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2013.11.049
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0960148113006277
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613603685040128
score 13.070432

Publicaciones similares