Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.18086/swc.2019.44.02 http://hdl.handle.net/11449/199023 |
Resumo: | The correct quality assessment of solar irradiance data allows public bodies, academic entities and nongovernmental organizations to plan and manage renewable energy resources more appropriately in Brazil. This study presents a physical and statistical analysis procedure used by the Solar Radiometry Laboratory of the School of Agricultural Sciences (São Paulo State University - UNESP), in Botucatu/São Paulo/Brazil, to check the reliability of 5-minute instantaneous average measurements (Wm-2) of global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiances in horizontal surfaces. The procedure was implemented based on quality control of the International Commission on Illumination (CIE) to detect physically impossible events (absolute and consistency checks) and statistical ranges in function of sky cover conditions to identify uncertain events. A set of measurements (2005 to 2007) was used to demonstrate the application of this procedure. It was found by the physical analysis that the absolute check identified the least amount and the consistency check the largest amount of physically impossible and discrepant quantities measurement values, as well as the statistical ranges allowed to identify data points not signaled by the previous criteria, pointing uncertain solar irradiance observations (outliers). The procedure application indicated that 94.77% of global, 97.12% of sky-diffuse and 98.16% of direct-beam irradiances were flagged as validated, indicating a high quality of measurements, that can be used to assist Brazilian organizations in the planning of renewable energy systems. |
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Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditionsQuality assessment of solar measurementsSky coverageSolar radiationStatistical rangesThe correct quality assessment of solar irradiance data allows public bodies, academic entities and nongovernmental organizations to plan and manage renewable energy resources more appropriately in Brazil. This study presents a physical and statistical analysis procedure used by the Solar Radiometry Laboratory of the School of Agricultural Sciences (São Paulo State University - UNESP), in Botucatu/São Paulo/Brazil, to check the reliability of 5-minute instantaneous average measurements (Wm-2) of global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiances in horizontal surfaces. The procedure was implemented based on quality control of the International Commission on Illumination (CIE) to detect physically impossible events (absolute and consistency checks) and statistical ranges in function of sky cover conditions to identify uncertain events. A set of measurements (2005 to 2007) was used to demonstrate the application of this procedure. It was found by the physical analysis that the absolute check identified the least amount and the consistency check the largest amount of physically impossible and discrepant quantities measurement values, as well as the statistical ranges allowed to identify data points not signaled by the previous criteria, pointing uncertain solar irradiance observations (outliers). The procedure application indicated that 94.77% of global, 97.12% of sky-diffuse and 98.16% of direct-beam irradiances were flagged as validated, indicating a high quality of measurements, that can be used to assist Brazilian organizations in the planning of renewable energy systems.School of Agricultural Sciences (São Paulo State University - UNESP) of BotucatuSchool of Natural Sciences and Mathematics (Púnguè University - UP) of ChimoioSchool of Agricultural Sciences (São Paulo State University - UNESP) of BotucatuUniversidade Estadual Paulista (Unesp)School of Natural Sciences and Mathematics (Púnguè University - UP) of ChimoioContes Calca, Marcus V. [UNESP]Raniero, Matheus Rodrigues [UNESP]Campos, Firmo Sousa [UNESP]Zeca Fernandes, Domingos M.Rodrigues, Sergio Augusto [UNESP]Pai, Alexandre Dal [UNESP]2020-12-12T01:28:40Z2020-12-12T01:28:40Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject2124-2134http://dx.doi.org/10.18086/swc.2019.44.02Proceedings of the ISES Solar World Congress 2019 and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2019, p. 2124-2134.http://hdl.handle.net/11449/19902310.18086/swc.2019.44.022-s2.0-85086822513Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the ISES Solar World Congress 2019 and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2019info:eu-repo/semantics/openAccess2021-10-23T00:00:15Zoai:repositorio.unesp.br:11449/199023Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:51:49.998045Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
title |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
spellingShingle |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions Contes Calca, Marcus V. [UNESP] Quality assessment of solar measurements Sky coverage Solar radiation Statistical ranges |
title_short |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
title_full |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
title_fullStr |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
title_full_unstemmed |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
title_sort |
Physical and statistical analysis procedure of solar irradiance measurements based on sky cover conditions |
author |
Contes Calca, Marcus V. [UNESP] |
author_facet |
Contes Calca, Marcus V. [UNESP] Raniero, Matheus Rodrigues [UNESP] Campos, Firmo Sousa [UNESP] Zeca Fernandes, Domingos M. Rodrigues, Sergio Augusto [UNESP] Pai, Alexandre Dal [UNESP] |
author_role |
author |
author2 |
Raniero, Matheus Rodrigues [UNESP] Campos, Firmo Sousa [UNESP] Zeca Fernandes, Domingos M. Rodrigues, Sergio Augusto [UNESP] Pai, Alexandre Dal [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) School of Natural Sciences and Mathematics (Púnguè University - UP) of Chimoio |
dc.contributor.author.fl_str_mv |
Contes Calca, Marcus V. [UNESP] Raniero, Matheus Rodrigues [UNESP] Campos, Firmo Sousa [UNESP] Zeca Fernandes, Domingos M. Rodrigues, Sergio Augusto [UNESP] Pai, Alexandre Dal [UNESP] |
dc.subject.por.fl_str_mv |
Quality assessment of solar measurements Sky coverage Solar radiation Statistical ranges |
topic |
Quality assessment of solar measurements Sky coverage Solar radiation Statistical ranges |
description |
The correct quality assessment of solar irradiance data allows public bodies, academic entities and nongovernmental organizations to plan and manage renewable energy resources more appropriately in Brazil. This study presents a physical and statistical analysis procedure used by the Solar Radiometry Laboratory of the School of Agricultural Sciences (São Paulo State University - UNESP), in Botucatu/São Paulo/Brazil, to check the reliability of 5-minute instantaneous average measurements (Wm-2) of global (IG), sky-diffuse (ID) and direct-beam (IB) solar irradiances in horizontal surfaces. The procedure was implemented based on quality control of the International Commission on Illumination (CIE) to detect physically impossible events (absolute and consistency checks) and statistical ranges in function of sky cover conditions to identify uncertain events. A set of measurements (2005 to 2007) was used to demonstrate the application of this procedure. It was found by the physical analysis that the absolute check identified the least amount and the consistency check the largest amount of physically impossible and discrepant quantities measurement values, as well as the statistical ranges allowed to identify data points not signaled by the previous criteria, pointing uncertain solar irradiance observations (outliers). The procedure application indicated that 94.77% of global, 97.12% of sky-diffuse and 98.16% of direct-beam irradiances were flagged as validated, indicating a high quality of measurements, that can be used to assist Brazilian organizations in the planning of renewable energy systems. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:28:40Z 2020-12-12T01:28:40Z 2020-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.18086/swc.2019.44.02 Proceedings of the ISES Solar World Congress 2019 and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2019, p. 2124-2134. http://hdl.handle.net/11449/199023 10.18086/swc.2019.44.02 2-s2.0-85086822513 |
url |
http://dx.doi.org/10.18086/swc.2019.44.02 http://hdl.handle.net/11449/199023 |
identifier_str_mv |
Proceedings of the ISES Solar World Congress 2019 and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2019, p. 2124-2134. 10.18086/swc.2019.44.02 2-s2.0-85086822513 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the ISES Solar World Congress 2019 and IEA SHC International Conference on Solar Heating and Cooling for Buildings and Industry 2019 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2124-2134 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128867732291584 |