Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/28887 |
Resumo: | The present paper makes an analysis of the frequency of sky conditions in the city of Maputo/Mozambique based on the clearness index (Kt). From the determination of extraterrestrial solar radiation and measured data of four years of global daily radiation, Kt was calculated. Different sky conditions were classified according to the Escobedo criterion, which dispenses the data of direct and / or diffuse radiation in its classification. The city of Maputo, during the year, is observed more days with conditions of clear sky, in average of 120 days. And for cloudy sky conditions, the city of Maputo presents the least number of days, with an average of 48 days. The frequency of days for partially cloudy sky and partially clear sky conditions is 85 and 112 days respectively. The information generated in this paper can be used in future studies to project solar systems for thermal use or direct conversion of solar radiation into electricity. |
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Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique Clasificación de la Cobertura del Cielo por el Índice de Transmisividad Atmosférica (Kt) en Maputo - MozambiqueClassificação da Cobertura do Céu pelo Índice de Tranmissividade Atmosférica (Kt) em Maputo - MoçambiqueNebulosidadeCidade de MaputoÍndice de Transmissividade Atmosférica.NubesCiudad de MaputoÍndice de Transmisividad Atmosférica.CloudinessCity of MaputoClearness Index.The present paper makes an analysis of the frequency of sky conditions in the city of Maputo/Mozambique based on the clearness index (Kt). From the determination of extraterrestrial solar radiation and measured data of four years of global daily radiation, Kt was calculated. Different sky conditions were classified according to the Escobedo criterion, which dispenses the data of direct and / or diffuse radiation in its classification. The city of Maputo, during the year, is observed more days with conditions of clear sky, in average of 120 days. And for cloudy sky conditions, the city of Maputo presents the least number of days, with an average of 48 days. The frequency of days for partially cloudy sky and partially clear sky conditions is 85 and 112 days respectively. The information generated in this paper can be used in future studies to project solar systems for thermal use or direct conversion of solar radiation into electricity.El presente trabajo realizó un análisis de la frecuencia de diferentes condiciones del cielo en la ciudad de Maputo/Mozambique a partir del índice de transmisividad atmosférica (Kt). A partir de la determinación de la radiación solar extraterrestre y los datos medidos de cuatro años de radiación global diaria, se calculó el Kt. Las diferentes condiciones del cielo se clasificaron según el criterio de Escobedo, que prescinde de datos de radiación directa y/o difusa en su clasificación. En la ciudad de Maputo, durante el año, se observan más días con condiciones de cielo despejado, en promedio 120 días. Para condiciones de cielo nublado, la ciudad de Maputo tiene el menor número de ocurrencias, con un promedio de 48 días. La frecuencia de cobertura del cielo para condiciones de cielo parcialmente nublado y parcialmente despejado es de 85 y 112 días, respectivamente. La información generada en este trabajo puede ser utilizada en futuros estudios para apoyar proyectos de sistemas solares para aprovechamiento térmico o conversión directa de la radiación solar en electricidad.O presente trabalho fez uma análise da frequência das diferentes condições do céu na cidade de Maputo/Moçambique com base no índice de transmissividade atmosférica (Kt). A partir da determinação da radiação solar extraterrestre e dos dados medidos de quatro anos de radiação global diária foi calculado o Kt. Diferentes condições do céu foram classificadas de acordo com o critério de Escobedo, que dispensa os dados de radiação direta e/ou difusa em sua classificação. Na cidade de Maputo, durante o ano, são observados mais dias com condições de céu limpo, em média de 120 dias. Para condições de céu nublado a cidade de Maputo apresenta o menor número de ocorrência, com uma média de 48 dias. A frequência de cobertura de céu para condições de céu parcialmente nublado e céu parcialmente claro é de 85 e 112 dias, respectivamente. As informações geradas neste trabalho podem ser utilizadas em futuros estudos para embasar projetos de sistemas solares de aproveitamento térmico ou conversão direta da radiação solar em eletricidade.Research, Society and Development2022-04-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2888710.33448/rsd-v11i6.28887Research, Society and Development; Vol. 11 No. 6; e20611628887Research, Society and Development; Vol. 11 Núm. 6; e20611628887Research, Society and Development; v. 11 n. 6; e206116288872525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/28887/25135Copyright (c) 2022 Domingos Mário Zeca Fernando; Marcus Vinicius Contes Calça; Francisco José Noris; Matheus Rodrigues Raniero; Alexandre Dal Paihttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFernando, Domingos Mário ZecaCalça, Marcus Vinicius Contes Noris, Francisco JoséRaniero, Matheus Rodrigues Dal Pai, Alexandre 2022-05-13T18:04:10Zoai:ojs.pkp.sfu.ca:article/28887Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:46:08.476055Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique Clasificación de la Cobertura del Cielo por el Índice de Transmisividad Atmosférica (Kt) en Maputo - Mozambique Classificação da Cobertura do Céu pelo Índice de Tranmissividade Atmosférica (Kt) em Maputo - Moçambique |
title |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
spellingShingle |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique Fernando, Domingos Mário Zeca Nebulosidade Cidade de Maputo Índice de Transmissividade Atmosférica. Nubes Ciudad de Maputo Índice de Transmisividad Atmosférica. Cloudiness City of Maputo Clearness Index. |
title_short |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
title_full |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
title_fullStr |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
title_full_unstemmed |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
title_sort |
Classification of Sky Cover by the Clearness Index (Kt) in Maputo - Mozambique |
author |
Fernando, Domingos Mário Zeca |
author_facet |
Fernando, Domingos Mário Zeca Calça, Marcus Vinicius Contes Noris, Francisco José Raniero, Matheus Rodrigues Dal Pai, Alexandre |
author_role |
author |
author2 |
Calça, Marcus Vinicius Contes Noris, Francisco José Raniero, Matheus Rodrigues Dal Pai, Alexandre |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Fernando, Domingos Mário Zeca Calça, Marcus Vinicius Contes Noris, Francisco José Raniero, Matheus Rodrigues Dal Pai, Alexandre |
dc.subject.por.fl_str_mv |
Nebulosidade Cidade de Maputo Índice de Transmissividade Atmosférica. Nubes Ciudad de Maputo Índice de Transmisividad Atmosférica. Cloudiness City of Maputo Clearness Index. |
topic |
Nebulosidade Cidade de Maputo Índice de Transmissividade Atmosférica. Nubes Ciudad de Maputo Índice de Transmisividad Atmosférica. Cloudiness City of Maputo Clearness Index. |
description |
The present paper makes an analysis of the frequency of sky conditions in the city of Maputo/Mozambique based on the clearness index (Kt). From the determination of extraterrestrial solar radiation and measured data of four years of global daily radiation, Kt was calculated. Different sky conditions were classified according to the Escobedo criterion, which dispenses the data of direct and / or diffuse radiation in its classification. The city of Maputo, during the year, is observed more days with conditions of clear sky, in average of 120 days. And for cloudy sky conditions, the city of Maputo presents the least number of days, with an average of 48 days. The frequency of days for partially cloudy sky and partially clear sky conditions is 85 and 112 days respectively. The information generated in this paper can be used in future studies to project solar systems for thermal use or direct conversion of solar radiation into electricity. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-25 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/28887 10.33448/rsd-v11i6.28887 |
url |
https://rsdjournal.org/index.php/rsd/article/view/28887 |
identifier_str_mv |
10.33448/rsd-v11i6.28887 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/28887/25135 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 11 No. 6; e20611628887 Research, Society and Development; Vol. 11 Núm. 6; e20611628887 Research, Society and Development; v. 11 n. 6; e20611628887 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052710695993344 |