Water footprint of the Sobradinho hydropower plant, northeastern Brazil

Detalhes bibliográficos
Autor(a) principal: Vieira, Nayara Paula Andrade
Data de Publicação: 2018
Outros Autores: Bueno, Eduardo de Oliveira, Pereira, Silvio Bueno, Mello, Carlos Rogério de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/33576
Resumo: Hydroelectricity is responsible for the greatest fraction of the electric energy generated in Brazil. The water footprint of hydropower plants (WFP) is an important indicator of the sustainable and efficient use of water resources. In this context, WFP of the Sobradinho Hydropower Plant was determined for the period from 2003 to 2012, taking into account the reservoir’s historical variation for the flooded area. To accomplish this, monthly series of electric energy production, flooded area, evaporation and evapotranspiration rates were used. Average gross and net evaporation were 2,031 and 1,577 mm year-1 , respectively. The average power generation of this facility in the analyzed period was 462 MW, and the flooded area of its reservoir presented an average value of 3,054 km². Based on the monthly data, the gross and net water footprints were, respectively, 417 and 325 m³ GJ-1 . Based on these results, it can be concluded that the changes in the reservoir’s area exert direct and important influence on the WFP estimates of the Sobradinho hydropower plant. The WFP estimates in this study were different from other studies that adopted a constant value of 4,214 km² for this reservoir’s area, which is taken based on the normal water level of the plant operation.
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spelling Water footprint of the Sobradinho hydropower plant, northeastern BrazilPegada hídrica da usina hidrelétrica de Sobradinho, Nordeste do BrasilEvaporationHydroelectric damsWater consumptionConsumo de águaEvaporaçãoHidrelétricaHydroelectricity is responsible for the greatest fraction of the electric energy generated in Brazil. The water footprint of hydropower plants (WFP) is an important indicator of the sustainable and efficient use of water resources. In this context, WFP of the Sobradinho Hydropower Plant was determined for the period from 2003 to 2012, taking into account the reservoir’s historical variation for the flooded area. To accomplish this, monthly series of electric energy production, flooded area, evaporation and evapotranspiration rates were used. Average gross and net evaporation were 2,031 and 1,577 mm year-1 , respectively. The average power generation of this facility in the analyzed period was 462 MW, and the flooded area of its reservoir presented an average value of 3,054 km². Based on the monthly data, the gross and net water footprints were, respectively, 417 and 325 m³ GJ-1 . Based on these results, it can be concluded that the changes in the reservoir’s area exert direct and important influence on the WFP estimates of the Sobradinho hydropower plant. The WFP estimates in this study were different from other studies that adopted a constant value of 4,214 km² for this reservoir’s area, which is taken based on the normal water level of the plant operation.A hidroeletricidade é responsável por grande parte da produção brasileira de energia elétrica. Assim, a pegada hídrica de usinas hidrelétricas apresenta-se como um importante indicador para análise e discussão de questões relacionadas ao uso sustentável e eficiente dos recursos hídricos. Nesse contexto, foi caracterizada a pegada hídrica da Usina Hidrelétrica de Sobradinho, no período de 2003 a 2012, considerando a variação histórica da área alagada pelo reservatório. Para isto, foram utilizadas séries mensais de geração, área inundada, evaporação e evapotranspiração. A evaporação bruta e líquida, médias do período de análise, foi de 2.031 e 1.577 mm ano-1 , respectivamente. A energia média gerada no período foi de 462 MW médio, enquanto a área de inundação do reservatório apresentou um valor médio de 3.054 km2 . Com base nos dados mensais estimou-se a pegada hídrica bruta e líquida em 417 e 325 m³ GJ-1 , respectivamente. A partir dos resultados pode-se concluir que a variação da área do reservatório exerce influência direta e significativa na estimativa da pegada hídrica da Usina Hidrelétrica de Sobradinho. Os valores obtidos de pegada hídrica diferem de outras estimativas que adotaram o valor constante de 4.214 km2 , correspondente a área do reservatório no nível d’água normal de operação da usina.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2019-04-15T11:44:48Z2019-04-15T11:44:48Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfVIEIRA, N. P. A. et al. Water footprint of the Sobradinho hydropower plant, northeastern Brazil. Revista Ambiente & Água, Taubaté, v. 13 n. 3, 2018.http://repositorio.ufla.br/jspui/handle/1/33576Revista Ambiente & Águareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessVieira, Nayara Paula AndradeBueno, Eduardo de OliveiraPereira, Silvio BuenoMello, Carlos Rogério deeng2023-04-25T14:17:43Zoai:localhost:1/33576Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-04-25T14:17:43Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Water footprint of the Sobradinho hydropower plant, northeastern Brazil
Pegada hídrica da usina hidrelétrica de Sobradinho, Nordeste do Brasil
title Water footprint of the Sobradinho hydropower plant, northeastern Brazil
spellingShingle Water footprint of the Sobradinho hydropower plant, northeastern Brazil
Vieira, Nayara Paula Andrade
Evaporation
Hydroelectric dams
Water consumption
Consumo de água
Evaporação
Hidrelétrica
title_short Water footprint of the Sobradinho hydropower plant, northeastern Brazil
title_full Water footprint of the Sobradinho hydropower plant, northeastern Brazil
title_fullStr Water footprint of the Sobradinho hydropower plant, northeastern Brazil
title_full_unstemmed Water footprint of the Sobradinho hydropower plant, northeastern Brazil
title_sort Water footprint of the Sobradinho hydropower plant, northeastern Brazil
author Vieira, Nayara Paula Andrade
author_facet Vieira, Nayara Paula Andrade
Bueno, Eduardo de Oliveira
Pereira, Silvio Bueno
Mello, Carlos Rogério de
author_role author
author2 Bueno, Eduardo de Oliveira
Pereira, Silvio Bueno
Mello, Carlos Rogério de
author2_role author
author
author
dc.contributor.author.fl_str_mv Vieira, Nayara Paula Andrade
Bueno, Eduardo de Oliveira
Pereira, Silvio Bueno
Mello, Carlos Rogério de
dc.subject.por.fl_str_mv Evaporation
Hydroelectric dams
Water consumption
Consumo de água
Evaporação
Hidrelétrica
topic Evaporation
Hydroelectric dams
Water consumption
Consumo de água
Evaporação
Hidrelétrica
description Hydroelectricity is responsible for the greatest fraction of the electric energy generated in Brazil. The water footprint of hydropower plants (WFP) is an important indicator of the sustainable and efficient use of water resources. In this context, WFP of the Sobradinho Hydropower Plant was determined for the period from 2003 to 2012, taking into account the reservoir’s historical variation for the flooded area. To accomplish this, monthly series of electric energy production, flooded area, evaporation and evapotranspiration rates were used. Average gross and net evaporation were 2,031 and 1,577 mm year-1 , respectively. The average power generation of this facility in the analyzed period was 462 MW, and the flooded area of its reservoir presented an average value of 3,054 km². Based on the monthly data, the gross and net water footprints were, respectively, 417 and 325 m³ GJ-1 . Based on these results, it can be concluded that the changes in the reservoir’s area exert direct and important influence on the WFP estimates of the Sobradinho hydropower plant. The WFP estimates in this study were different from other studies that adopted a constant value of 4,214 km² for this reservoir’s area, which is taken based on the normal water level of the plant operation.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-04-15T11:44:48Z
2019-04-15T11:44:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv VIEIRA, N. P. A. et al. Water footprint of the Sobradinho hydropower plant, northeastern Brazil. Revista Ambiente & Água, Taubaté, v. 13 n. 3, 2018.
http://repositorio.ufla.br/jspui/handle/1/33576
identifier_str_mv VIEIRA, N. P. A. et al. Water footprint of the Sobradinho hydropower plant, northeastern Brazil. Revista Ambiente & Água, Taubaté, v. 13 n. 3, 2018.
url http://repositorio.ufla.br/jspui/handle/1/33576
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://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 Instituto de Pesquisas Ambientais em Bacias Hidrográficas
publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
dc.source.none.fl_str_mv Revista Ambiente & Água
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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