Análise de critérios para definição da vazão remanescente em usinas hidrelétricas.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UERJ |
Texto Completo: | http://www.bdtd.uerj.br/handle/1/10977 |
Resumo: | Worldwide, the demand for energy has been increasing. In Brazil, with the economy warming up in the last years, the demand for energy supply further increased. The Brazilian power generating facilities are heavily based on hydroelectric generation, which represents 77,6% of the total generated electricity. Among the environmental impacts caused by the construction of dams and reservoirs are the changes on downstream discharges, known as the remaining discharge. This discharge should ensure the appropriate conditions to the survival and perpetuation of ecosystems, linking human and wild life needs of each region. In this respect, two case studies are taken as object of analysis: (1) a small hydroelectric power plant Santa Gabriela, located in Correntes river, in the limits of Mato Grosso and Mato Grosso do Sul States; (2) the hydropower plant Batalha, in São Marcos river, in the limits of Minas Gerais and Goiás States. Although it s been observed that this issue is widely discussed by technical and academic communities, no legal framework or an explicit definition, or criteria, or limit values has been identified for the establishment of the remaining discharge in hydroelectric power plant projects. Generally, values have been defined based on criteria adopted in state s water use rights acts that define minimum discharge parameters based on time series frequency analysis such as Q90%, Q95% or Q7, 10. These methodologies imply on a single value discharge throughout the year, which does not reflect the variability of natural hydrological regime. Current studies lead to an, so called, ecological hydrogram , which would represent discharges variability during drought and flood periods. The methodology of analysis in which the discussion presented in this master dissertation was based, involved the comparison of values obtained by different water use rights criteria adopted in some states like Q90%, Q95% and Q7, 10 and, methods quoted in the literature to define the ecological discharge (Tennant, Texas, Base Flow and Wetted Perimeter), as well as National Water Agency s (ANA) declarations related to the Water Availability Reserve Statement (WARS) which specifies remaining dischargesflow for the reservoir filling and operating phases. It was observed that the application of the different methods in the two case studies resulted in significantly different values for the definition of the remaining discharge. However, it s worth to note that the publication of the Guidelines for Water Availability Study for Hydroelectric Power Plants (ANA, 2009) that aims the standardization of documents to obtain WARS and granting the use of water for energy generation purposes in federal jurisdiction represents an advance in these matters. By that, the developer may propose and negotiate water demands for wild life needs with the involved authorities, which should be discussed in the initial technical meeting that will count on the National Electrical Energy Agency (ANEEL), ANA, the related environmental agency, the developer and the organization/agency responsible for the environmental studies. |
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Silva, Luciene Pimentel dahttp://lattes.cnpq.br/5649390252824515Campos, Jander Duartehttp://lattes.cnpq.br/6283900683809187Johnsson, Rosa Maria Formigahttp://lattes.cnpq.br/3416239345799227Medeiros, Yvonilde Dantas Pintohttp://lattes.cnpq.br/3707114540449711http://lattes.cnpq.br/6126787382107068Melo, Luciana de Deus2021-01-06T14:11:37Z2015-03-252011-04-01MELO, Luciana de Deus. Análise de critérios para definição da vazão remanescente em usinas hidrelétricas.. 2011. 191 f. Dissertação (Mestrado em Saneamento Ambiental: controle da poluição urbana e industrial) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011.http://www.bdtd.uerj.br/handle/1/10977Worldwide, the demand for energy has been increasing. In Brazil, with the economy warming up in the last years, the demand for energy supply further increased. The Brazilian power generating facilities are heavily based on hydroelectric generation, which represents 77,6% of the total generated electricity. Among the environmental impacts caused by the construction of dams and reservoirs are the changes on downstream discharges, known as the remaining discharge. This discharge should ensure the appropriate conditions to the survival and perpetuation of ecosystems, linking human and wild life needs of each region. In this respect, two case studies are taken as object of analysis: (1) a small hydroelectric power plant Santa Gabriela, located in Correntes river, in the limits of Mato Grosso and Mato Grosso do Sul States; (2) the hydropower plant Batalha, in São Marcos river, in the limits of Minas Gerais and Goiás States. Although it s been observed that this issue is widely discussed by technical and academic communities, no legal framework or an explicit definition, or criteria, or limit values has been identified for the establishment of the remaining discharge in hydroelectric power plant projects. Generally, values have been defined based on criteria adopted in state s water use rights acts that define minimum discharge parameters based on time series frequency analysis such as Q90%, Q95% or Q7, 10. These methodologies imply on a single value discharge throughout the year, which does not reflect the variability of natural hydrological regime. Current studies lead to an, so called, ecological hydrogram , which would represent discharges variability during drought and flood periods. The methodology of analysis in which the discussion presented in this master dissertation was based, involved the comparison of values obtained by different water use rights criteria adopted in some states like Q90%, Q95% and Q7, 10 and, methods quoted in the literature to define the ecological discharge (Tennant, Texas, Base Flow and Wetted Perimeter), as well as National Water Agency s (ANA) declarations related to the Water Availability Reserve Statement (WARS) which specifies remaining dischargesflow for the reservoir filling and operating phases. It was observed that the application of the different methods in the two case studies resulted in significantly different values for the definition of the remaining discharge. However, it s worth to note that the publication of the Guidelines for Water Availability Study for Hydroelectric Power Plants (ANA, 2009) that aims the standardization of documents to obtain WARS and granting the use of water for energy generation purposes in federal jurisdiction represents an advance in these matters. By that, the developer may propose and negotiate water demands for wild life needs with the involved authorities, which should be discussed in the initial technical meeting that will count on the National Electrical Energy Agency (ANEEL), ANA, the related environmental agency, the developer and the organization/agency responsible for the environmental studies.Tem crescido a demanda por energia em todo o mundo. No Brasil, com o aquecimento da economia aumentam ainda mais as pressões. O parque gerador Brasileiro é fortemente baseado na geração hidrelétrica, que representa aproximadamente 77,6% da oferta de geração de eletricidade. Entre os impactos ambientais gerados pela construção de barragens e reservatórios de aproveitamentos hidrelétricos está a mudança do regime fluvial de jusante, a chamada vazão remanescente. Entre outros, esta vazão deve garantir as condições adequadas à sobrevivência e continuação das espécies e dos ecossistemas, associando as necessidades humanas, ambientais e as características de cada região. Tomou-se como objeto de análise dois estudos de caso, a pequena central hidrelétrica (PCH) Santa Gabriela, localizada no rio Correntes, na divisa entre os estados de Mato Grosso e Mato Grosso do Sul e a usina hidrelétrica (UHE) Batalha, situada no rio São Marcos, na divisa entre os estados de Minas Gerais e Goiás. Embora o assunto seja discutido amplamente pela comunidade técnica e acadêmica, não há ainda nos marcos legais Brasileiros associados, uma definição explícita de critérios ou limites para estabelecimento da vazão remanescente. Em geral, as legislações estaduais estabelecem valores máximos outorgáveis determinados a partir de percentuais da curva de permanência (Q90, Q95) ou da vazão mínima anual de sete dias de duração e tempo de recorrência de 10 anos Q7,10, garantindo consequentemente as vazões mínimas remanescentes. Essas metodologias implicam num único valor fixo para a vazão ao longo do ano, o que não condiz com a realidade do regime hidrológico natural. Estudos atuais apontam para um hidrograma ecológico, que represente a variação das vazões entre os meses de estiagem e cheia. Assim, a metodologia envolveu a comparação entre critérios de outorga utilizados em alguns estados Q90, Q95 e Q7,10 e métodos citados na literatura para estudo da vazão ecológica (Tennant, Texas, Vazão Base e Perímetro Molhado) e as Resoluções referentes à Declaração de Reserva de Disponibilidade Hídrica (DRDH) das usinas, que especificam a vazão remanescente nas fases de enchimento e operação, emitidas pela Agência Nacional de Águas (ANA). Observaram-se valores de vazões substancialmente diferenciados entre os seis métodos empregados. Cabe destacar, que representa um avanço a publicação do Manual de Estudos de Disponibilidade Hídrica para Aproveitamentos Hidrelétricos (ANA, 2009), que visa à padronização dos documentos para fins obtenção da DRDH e da outorga do uso do potencial de energia hidráulica em corpo de água de domínio da União. Assim, o empreendedor poderá propor e negociar a demanda hídrica para as necessidades ambientais com as autoridades competentes, o que deverá ser discutido em reunião técnica inicial que deverá contar com a participação da Agência Nacional de Energia Elétrica (ANEEL), ANA, órgão ambiental, empreendedor e a empresa responsável pelos estudos ambientais.Submitted by Boris Flegr (boris@uerj.br) on 2021-01-06T14:11:37Z No. of bitstreams: 1 Luciana de Deus Melo.pdf: 5371978 bytes, checksum: 5334e94a1afffea54756416177095bd2 (MD5)Made available in DSpace on 2021-01-06T14:11:37Z (GMT). No. of bitstreams: 1 Luciana de Deus Melo.pdf: 5371978 bytes, checksum: 5334e94a1afffea54756416177095bd2 (MD5) Previous issue date: 2011-04-01application/pdfporUniversidade do Estado do Rio de JaneiroPrograma de Pós-Graduação em Engenharia AmbientalUERJBRCentro de Tecnologia e Ciências::Faculdade de EngenhariaEnvironmental EngineeringHydroelectric powerSmall hydroRemaining flowInstream flowEngenharia AmbientalUsina hidrelétricaPequena central hidrelétricaVazão remanescenteVazão ecológicaCNPQ::ENGENHARIASAnálise de critérios para definição da vazão remanescente em usinas hidrelétricas.Analysis of criteria to the remaining flows definition in hydroelectric plants.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UERJinstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UERJORIGINALLuciana de Deus Melo.pdfapplication/pdf5371978http://www.bdtd.uerj.br/bitstream/1/10977/1/Luciana+de+Deus+Melo.pdf5334e94a1afffea54756416177095bd2MD511/109772024-02-27 14:46:46.489oai:www.bdtd.uerj.br:1/10977Biblioteca Digital de Teses e Dissertaçõeshttp://www.bdtd.uerj.br/PUBhttps://www.bdtd.uerj.br:8443/oai/requestbdtd.suporte@uerj.bropendoar:29032024-02-27T17:46:46Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.por.fl_str_mv |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
dc.title.alternative.eng.fl_str_mv |
Analysis of criteria to the remaining flows definition in hydroelectric plants. |
title |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
spellingShingle |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. Melo, Luciana de Deus Environmental Engineering Hydroelectric power Small hydro Remaining flow Instream flow Engenharia Ambiental Usina hidrelétrica Pequena central hidrelétrica Vazão remanescente Vazão ecológica CNPQ::ENGENHARIAS |
title_short |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
title_full |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
title_fullStr |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
title_full_unstemmed |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
title_sort |
Análise de critérios para definição da vazão remanescente em usinas hidrelétricas. |
author |
Melo, Luciana de Deus |
author_facet |
Melo, Luciana de Deus |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Silva, Luciene Pimentel da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5649390252824515 |
dc.contributor.advisor-co1.fl_str_mv |
Campos, Jander Duarte |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/6283900683809187 |
dc.contributor.referee1.fl_str_mv |
Johnsson, Rosa Maria Formiga |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/3416239345799227 |
dc.contributor.referee2.fl_str_mv |
Medeiros, Yvonilde Dantas Pinto |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3707114540449711 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6126787382107068 |
dc.contributor.author.fl_str_mv |
Melo, Luciana de Deus |
contributor_str_mv |
Silva, Luciene Pimentel da Campos, Jander Duarte Johnsson, Rosa Maria Formiga Medeiros, Yvonilde Dantas Pinto |
dc.subject.eng.fl_str_mv |
Environmental Engineering Hydroelectric power Small hydro Remaining flow Instream flow |
topic |
Environmental Engineering Hydroelectric power Small hydro Remaining flow Instream flow Engenharia Ambiental Usina hidrelétrica Pequena central hidrelétrica Vazão remanescente Vazão ecológica CNPQ::ENGENHARIAS |
dc.subject.por.fl_str_mv |
Engenharia Ambiental Usina hidrelétrica Pequena central hidrelétrica Vazão remanescente Vazão ecológica |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS |
description |
Worldwide, the demand for energy has been increasing. In Brazil, with the economy warming up in the last years, the demand for energy supply further increased. The Brazilian power generating facilities are heavily based on hydroelectric generation, which represents 77,6% of the total generated electricity. Among the environmental impacts caused by the construction of dams and reservoirs are the changes on downstream discharges, known as the remaining discharge. This discharge should ensure the appropriate conditions to the survival and perpetuation of ecosystems, linking human and wild life needs of each region. In this respect, two case studies are taken as object of analysis: (1) a small hydroelectric power plant Santa Gabriela, located in Correntes river, in the limits of Mato Grosso and Mato Grosso do Sul States; (2) the hydropower plant Batalha, in São Marcos river, in the limits of Minas Gerais and Goiás States. Although it s been observed that this issue is widely discussed by technical and academic communities, no legal framework or an explicit definition, or criteria, or limit values has been identified for the establishment of the remaining discharge in hydroelectric power plant projects. Generally, values have been defined based on criteria adopted in state s water use rights acts that define minimum discharge parameters based on time series frequency analysis such as Q90%, Q95% or Q7, 10. These methodologies imply on a single value discharge throughout the year, which does not reflect the variability of natural hydrological regime. Current studies lead to an, so called, ecological hydrogram , which would represent discharges variability during drought and flood periods. The methodology of analysis in which the discussion presented in this master dissertation was based, involved the comparison of values obtained by different water use rights criteria adopted in some states like Q90%, Q95% and Q7, 10 and, methods quoted in the literature to define the ecological discharge (Tennant, Texas, Base Flow and Wetted Perimeter), as well as National Water Agency s (ANA) declarations related to the Water Availability Reserve Statement (WARS) which specifies remaining dischargesflow for the reservoir filling and operating phases. It was observed that the application of the different methods in the two case studies resulted in significantly different values for the definition of the remaining discharge. However, it s worth to note that the publication of the Guidelines for Water Availability Study for Hydroelectric Power Plants (ANA, 2009) that aims the standardization of documents to obtain WARS and granting the use of water for energy generation purposes in federal jurisdiction represents an advance in these matters. By that, the developer may propose and negotiate water demands for wild life needs with the involved authorities, which should be discussed in the initial technical meeting that will count on the National Electrical Energy Agency (ANEEL), ANA, the related environmental agency, the developer and the organization/agency responsible for the environmental studies. |
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2011 |
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2011-04-01 |
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2015-03-25 |
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MELO, Luciana de Deus. Análise de critérios para definição da vazão remanescente em usinas hidrelétricas.. 2011. 191 f. Dissertação (Mestrado em Saneamento Ambiental: controle da poluição urbana e industrial) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011. |
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http://www.bdtd.uerj.br/handle/1/10977 |
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MELO, Luciana de Deus. Análise de critérios para definição da vazão remanescente em usinas hidrelétricas.. 2011. 191 f. Dissertação (Mestrado em Saneamento Ambiental: controle da poluição urbana e industrial) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2011. |
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