Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results

Autores
Salazar, Germán Ariel; Hernández, Alejandro Luis; Saravia Mathon, Luis Roberto
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Argentinean Northwest (ANW) is a high altitude region located alongside Los Andes Mountains. The ANW is also one of the most insolated regions in the world due to its altitude and particular climate. However, the characterization of the solar resource in the region is incomplete as there are no stations to measure solar radiation continuously and methodically. With irradiance data recently having been measured at three sites in the Salta Province, a study was carried out that resulted in a practical model to quickly and efficiently estimate the horizontal irradiance in high altitude sites in clear sky conditions. This model uses the altitude above sea level (A) as a variable and generates a representative clearness index as a result (kt-R) that is calculated for each site studied. This index kt-R is then used with the relative optical air mass and the extraterrestrial irradiance to estimate the instantaneous clearness index (kt). Subsequently, the index kt-R is corrected by introducing the atmospheric pressure in the definition of relative optical air mass proposed by Kasten. The results are satisfactory as errors in the irradiance estimations with respect to measured values do not exceed 5% for pressure corrected air masses AMc < 2. This model will be used in a feasibility study to locate sites for the installation of solar thermal power plants in the ANW. A prototype of a CLFR solar power plant is being built in the INENCO Campus, at the National University of Salta.
Fil: Salazar, Germán Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
Fil: Hernández, Alejandro Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
Fil: Saravia Mathon, Luis Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
Materia
High Altitude Sites
Horizontal Irradiance Model
Clear Sky Model
Andean Region
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:11336/14546
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Practical models to estimate horizontal irradiance in clear sky conditions: preliminary resultsSalazar, Germán ArielHernández, Alejandro LuisSaravia Mathon, Luis RobertoHigh Altitude SitesHorizontal Irradiance ModelClear Sky ModelAndean Regionhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Argentinean Northwest (ANW) is a high altitude region located alongside Los Andes Mountains. The ANW is also one of the most insolated regions in the world due to its altitude and particular climate. However, the characterization of the solar resource in the region is incomplete as there are no stations to measure solar radiation continuously and methodically. With irradiance data recently having been measured at three sites in the Salta Province, a study was carried out that resulted in a practical model to quickly and efficiently estimate the horizontal irradiance in high altitude sites in clear sky conditions. This model uses the altitude above sea level (A) as a variable and generates a representative clearness index as a result (kt-R) that is calculated for each site studied. This index kt-R is then used with the relative optical air mass and the extraterrestrial irradiance to estimate the instantaneous clearness index (kt). Subsequently, the index kt-R is corrected by introducing the atmospheric pressure in the definition of relative optical air mass proposed by Kasten. The results are satisfactory as errors in the irradiance estimations with respect to measured values do not exceed 5% for pressure corrected air masses AMc < 2. This model will be used in a feasibility study to locate sites for the installation of solar thermal power plants in the ANW. A prototype of a CLFR solar power plant is being built in the INENCO Campus, at the National University of Salta.Fil: Salazar, Germán Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; ArgentinaFil: Hernández, Alejandro Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; ArgentinaFil: Saravia Mathon, Luis Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; ArgentinaElsevier2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/14546Salazar, Germán Ariel; Hernández, Alejandro Luis; Saravia Mathon, Luis Roberto; Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results; Elsevier; Renewable Energy; 35; 11; 11-2010; 2452-24600960-1481enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.renene.2010.01.033info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0960148110000984info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:02Zoai:ri.conicet.gov.ar:11336/14546instacron: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 09:50:02.545CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
title Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
spellingShingle Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
Salazar, Germán Ariel
High Altitude Sites
Horizontal Irradiance Model
Clear Sky Model
Andean Region
title_short Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
title_full Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
title_fullStr Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
title_full_unstemmed Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
title_sort Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results
dc.creator.none.fl_str_mv Salazar, Germán Ariel
Hernández, Alejandro Luis
Saravia Mathon, Luis Roberto
author Salazar, Germán Ariel
author_facet Salazar, Germán Ariel
Hernández, Alejandro Luis
Saravia Mathon, Luis Roberto
author_role author
author2 Hernández, Alejandro Luis
Saravia Mathon, Luis Roberto
author2_role author
author
dc.subject.none.fl_str_mv High Altitude Sites
Horizontal Irradiance Model
Clear Sky Model
Andean Region
topic High Altitude Sites
Horizontal Irradiance Model
Clear Sky Model
Andean Region
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Argentinean Northwest (ANW) is a high altitude region located alongside Los Andes Mountains. The ANW is also one of the most insolated regions in the world due to its altitude and particular climate. However, the characterization of the solar resource in the region is incomplete as there are no stations to measure solar radiation continuously and methodically. With irradiance data recently having been measured at three sites in the Salta Province, a study was carried out that resulted in a practical model to quickly and efficiently estimate the horizontal irradiance in high altitude sites in clear sky conditions. This model uses the altitude above sea level (A) as a variable and generates a representative clearness index as a result (kt-R) that is calculated for each site studied. This index kt-R is then used with the relative optical air mass and the extraterrestrial irradiance to estimate the instantaneous clearness index (kt). Subsequently, the index kt-R is corrected by introducing the atmospheric pressure in the definition of relative optical air mass proposed by Kasten. The results are satisfactory as errors in the irradiance estimations with respect to measured values do not exceed 5% for pressure corrected air masses AMc < 2. This model will be used in a feasibility study to locate sites for the installation of solar thermal power plants in the ANW. A prototype of a CLFR solar power plant is being built in the INENCO Campus, at the National University of Salta.
Fil: Salazar, Germán Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
Fil: Hernández, Alejandro Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
Fil: Saravia Mathon, Luis Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigaciones en Energía no Convencional; Argentina. Universidad Nacional de Salta. Facultad de Cs.exactas. Departamento de Fisica; Argentina
description The Argentinean Northwest (ANW) is a high altitude region located alongside Los Andes Mountains. The ANW is also one of the most insolated regions in the world due to its altitude and particular climate. However, the characterization of the solar resource in the region is incomplete as there are no stations to measure solar radiation continuously and methodically. With irradiance data recently having been measured at three sites in the Salta Province, a study was carried out that resulted in a practical model to quickly and efficiently estimate the horizontal irradiance in high altitude sites in clear sky conditions. This model uses the altitude above sea level (A) as a variable and generates a representative clearness index as a result (kt-R) that is calculated for each site studied. This index kt-R is then used with the relative optical air mass and the extraterrestrial irradiance to estimate the instantaneous clearness index (kt). Subsequently, the index kt-R is corrected by introducing the atmospheric pressure in the definition of relative optical air mass proposed by Kasten. The results are satisfactory as errors in the irradiance estimations with respect to measured values do not exceed 5% for pressure corrected air masses AMc < 2. This model will be used in a feasibility study to locate sites for the installation of solar thermal power plants in the ANW. A prototype of a CLFR solar power plant is being built in the INENCO Campus, at the National University of Salta.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
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/11336/14546
Salazar, Germán Ariel; Hernández, Alejandro Luis; Saravia Mathon, Luis Roberto; Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results; Elsevier; Renewable Energy; 35; 11; 11-2010; 2452-2460
0960-1481
url http://hdl.handle.net/11336/14546
identifier_str_mv Salazar, Germán Ariel; Hernández, Alejandro Luis; Saravia Mathon, Luis Roberto; Practical models to estimate horizontal irradiance in clear sky conditions: preliminary results; Elsevier; Renewable Energy; 35; 11; 11-2010; 2452-2460
0960-1481
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.2010.01.033
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0960148110000984
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
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
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score 13.070432

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