Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique

ABSTRACT : This work addresses the methodology to determine the exact concentration ratio (CR) for a parabolic solar concentrator (PSC) using thermographic imaging. The value of CR is commonly given in terms of the area of the receiver and not in terms of the area of the image produced by the concen...

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Autores:
Cano Ardila, Fabián Esneider
Giraldo Quintero, Juan David
Agudelo Flórez, Sergio Cipriano
Tipo de recurso:
Article of investigation
Fecha de publicación:
2021
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/24969
Acceso en línea:
http://hdl.handle.net/10495/24969
https://revistas.udea.edu.co/index.php/ingenieria/article/view/344223
Palabra clave:
Calefacción solar
Solar Heating
Energía solar
Solar energy
Radiación solar
Solar radiation
Eficiencia térmica
Colector solar
http://aims.fao.org/aos/agrovoc/c_7222
http://aims.fao.org/aos/agrovoc/c_14415
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-sa/2.5/co/
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dc.title.spa.fl_str_mv Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
dc.title.translated.spa.fl_str_mv Desempeño y determinación de la relación de concentración de un concentrador solar parabólico mediante termografías
title Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
spellingShingle Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
Calefacción solar
Solar Heating
Energía solar
Solar energy
Radiación solar
Solar radiation
Eficiencia térmica
Colector solar
http://aims.fao.org/aos/agrovoc/c_7222
http://aims.fao.org/aos/agrovoc/c_14415
title_short Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
title_full Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
title_fullStr Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
title_full_unstemmed Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
title_sort Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique
dc.creator.fl_str_mv Cano Ardila, Fabián Esneider
Giraldo Quintero, Juan David
Agudelo Flórez, Sergio Cipriano
dc.contributor.author.none.fl_str_mv Cano Ardila, Fabián Esneider
Giraldo Quintero, Juan David
Agudelo Flórez, Sergio Cipriano
dc.contributor.researchgroup.spa.fl_str_mv Ciencia y Tecnología del Gas y Uso Racional de la Energía (GASURE)
Grupo de Energía Alternativa
dc.subject.decs.none.fl_str_mv Calefacción solar
Solar Heating
topic Calefacción solar
Solar Heating
Energía solar
Solar energy
Radiación solar
Solar radiation
Eficiencia térmica
Colector solar
http://aims.fao.org/aos/agrovoc/c_7222
http://aims.fao.org/aos/agrovoc/c_14415
dc.subject.agrovoc.none.fl_str_mv Energía solar
Solar energy
Radiación solar
Solar radiation
dc.subject.proposal.spa.fl_str_mv Eficiencia térmica
Colector solar
dc.subject.agrovocuri.none.fl_str_mv http://aims.fao.org/aos/agrovoc/c_7222
http://aims.fao.org/aos/agrovoc/c_14415
description ABSTRACT : This work addresses the methodology to determine the exact concentration ratio (CR) for a parabolic solar concentrator (PSC) using thermographic imaging. The value of CR is commonly given in terms of the area of the receiver and not in terms of the area of the image produced by the concentrator on the receiver surface. With thermographic analysis, it is possible to know the real image generated by the PSC on the receiver, which helps to have a precise calculation of CR. It is important to measure the real CR not only for manufacturing purposes but also for the maintenance of solar concentrators, since its miscalculation lowers their energy efficiency or lifespan. In experiments, the real image on the receiver is divided into 4 regions, stratified with an equal temperature difference for each one. With this consideration, CR varied from 20 to 151. To complete the analysis, the energy efficiency is calculated. Since heating is a non-stationary process, thermal efficiency fluctuated during the time of experimentation, having a peak of 25% and a mean value of 15.3%. The irregularities of curvature in the concentrators significantly deteriorate the uniformity of the radiation flux and the energy efficiency due to unused areas of concentration.
publishDate 2021
dc.date.accessioned.none.fl_str_mv 2021-12-10T22:01:34Z
dc.date.available.none.fl_str_mv 2021-12-10T22:01:34Z
dc.date.issued.none.fl_str_mv 2021
dc.type.spa.fl_str_mv Artículo de investigación
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dc.identifier.citation.spa.fl_str_mv Cano-Ardila F., Giraldo-Quintero J. D., and Agudelo-Flórez S. C., “Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique”, Rev.Fac.Ing.Univ.Antioquia, no. 100, pp. 133-141, May 2021.
dc.identifier.issn.none.fl_str_mv 0120-6230
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/10495/24969
dc.identifier.doi.none.fl_str_mv 10.17533/udea.redin.20210530
dc.identifier.eissn.none.fl_str_mv 2422-2844
dc.identifier.url.spa.fl_str_mv https://revistas.udea.edu.co/index.php/ingenieria/article/view/344223
identifier_str_mv Cano-Ardila F., Giraldo-Quintero J. D., and Agudelo-Flórez S. C., “Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique”, Rev.Fac.Ing.Univ.Antioquia, no. 100, pp. 133-141, May 2021.
0120-6230
10.17533/udea.redin.20210530
2422-2844
url http://hdl.handle.net/10495/24969
https://revistas.udea.edu.co/index.php/ingenieria/article/view/344223
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.ispartofjournalabbrev.spa.fl_str_mv Rev. Fac. Ing. Univ. Antioquia
dc.relation.citationendpage.spa.fl_str_mv 141
dc.relation.citationissue.spa.fl_str_mv 100
dc.relation.citationstartpage.spa.fl_str_mv 133
dc.relation.ispartofjournal.spa.fl_str_mv Revista Facultad de Ingeniería Universidad de Antioquia
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dc.publisher.place.spa.fl_str_mv Medellín, Colombia
institution Universidad de Antioquia
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spelling Cano Ardila, Fabián EsneiderGiraldo Quintero, Juan DavidAgudelo Flórez, Sergio CiprianoCiencia y Tecnología del Gas y Uso Racional de la Energía (GASURE)Grupo de Energía Alternativa2021-12-10T22:01:34Z2021-12-10T22:01:34Z2021Cano-Ardila F., Giraldo-Quintero J. D., and Agudelo-Flórez S. C., “Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic technique”, Rev.Fac.Ing.Univ.Antioquia, no. 100, pp. 133-141, May 2021.0120-6230http://hdl.handle.net/10495/2496910.17533/udea.redin.202105302422-2844https://revistas.udea.edu.co/index.php/ingenieria/article/view/344223ABSTRACT : This work addresses the methodology to determine the exact concentration ratio (CR) for a parabolic solar concentrator (PSC) using thermographic imaging. The value of CR is commonly given in terms of the area of the receiver and not in terms of the area of the image produced by the concentrator on the receiver surface. With thermographic analysis, it is possible to know the real image generated by the PSC on the receiver, which helps to have a precise calculation of CR. It is important to measure the real CR not only for manufacturing purposes but also for the maintenance of solar concentrators, since its miscalculation lowers their energy efficiency or lifespan. In experiments, the real image on the receiver is divided into 4 regions, stratified with an equal temperature difference for each one. With this consideration, CR varied from 20 to 151. To complete the analysis, the energy efficiency is calculated. Since heating is a non-stationary process, thermal efficiency fluctuated during the time of experimentation, having a peak of 25% and a mean value of 15.3%. The irregularities of curvature in the concentrators significantly deteriorate the uniformity of the radiation flux and the energy efficiency due to unused areas of concentration.RESUMEN : Este trabajo aborda una metodología para determinar el factor de concentración (FC) exacto para un concentrador solar parabólico (CSP) utilizando cámara termográfica. El valor del FR se da comúnmente en términos del área del receptor y no en términos del área de la imagen producida por el concentrador en la superficie del receptor. Con el análisis termográfico es posible conocer la imagen real generada por el CSP sobre el receptor, lo que ayuda a tener un cálculo preciso del FC. Es importante disponer de metodologías para medir el FC real no sólo en la fabricación sino también en el mantenimiento de los concentradores solares, ya que su cálculo erróneo puede provocar disminuciones en la eficiencia energética o afectar a su vida útil. En los experimentos, la imagen real sobre el receptor se dividió en 4 regiones, estratificadas con igual diferencia de temperatura cada una. Con esta consideración, el FC varió de 20 a 151. Por otro lado, se calculó la eficiencia energética para completar el análisis. Dado que el calentamiento es un proceso no estacionario, la eficiencia térmica fluctuó durante el tiempo de experimentación, obteniendo un pico de 25% y un valor promedio del 15,3%. Las irregularidades de curvatura en los concentradores deterioran significativamente la uniformidad del flujo de radiación y la eficiencia energética debido a las zonas de concentración no utilizadas.COL0002466COL00080589application/pdfengUniversidad de Antioquia, Facultad de IngenieríaMedellín, Colombiahttp://creativecommons.org/licenses/by-nc-sa/2.5/co/https://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Performance and determination of Concentration Ratio for a parabolic solar concentrator using a thermographic techniqueDesempeño y determinación de la relación de concentración de un concentrador solar parabólico mediante termografíasArtículo de investigaciónhttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARThttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionCalefacción solarSolar HeatingEnergía solarSolar energyRadiación solarSolar radiationEficiencia térmicaColector solarhttp://aims.fao.org/aos/agrovoc/c_7222http://aims.fao.org/aos/agrovoc/c_14415Rev. Fac. Ing. Univ. 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