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Modelagem, simula??o e controle de sistemas de abastecimento de ?gua: um estudo de caso do campus da Universidade Federal do Rio Grande do NorteCunha, Eduardo Nogueira 15 October 2015 (has links)
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Previous issue date: 2015-10-15 / Os sistemas de abastecimento de ?gua s?o sistemas complexos e de dif?cil opera??o, possuem diversas configura??es no que diz respeito aos elementos ativos e passivos contidos no sistema. O seu controle e monitoramento ? de suma import?ncia para a opera??o racional do sistema visando sempre atender de forma satisfat?ria ? popula??o minimizando ao m?ximo as perdas h?dricas e tornando o sistema mais eficiente em termos energ?ticos. Os sistemas de abastecimento constituem-se em geral de sistemas cr?ticos, onde n?o h? possibilidades de tempo de parada para testes e simula??es, assim, para realizar o controle de forma adequada ? necess?rio um modelo que represente o sistema de forma satisfat?ria, onde seja poss?vel simular e testar as mais diversas situa??es ?s quais o sistema ? normalmente submetido no dia-a-dia. Neste trabalho ? apresentado o modelo matem?tico do sistema de abastecimento de ?gua (SAA) da Universidade Federal do Rio Grande do Norte (UFRN) contemplando todosos elementos presentes em seu sistema. Tr?s controladores s?o implementados em n?vel de simula??o e tem seus desempenhos comparados: servossistema tipo 1, o controlador preditivo linear e um controlador preditivo n?o-linear. O objetivo ? mostrar que podemos utilizar o modelo do sistema para testes e simula??o de condi??es de funcionamento e sintonia do controlador para obter o melhor desempenho do SAA. / Water supply systems are complex systems and difficult operation. They have different configurations in regard to active and passive elements of the system. The control and monitoring is very important for the rational operation of the system in order meet the satisfaction of the population as much as possible minimizing water losses and make the system more efficient energy. Supply systems are critical systems, there is no downtime possibilities for testing and simulations. To perform the control of tuning you need a model that will best represent the system where you can simulate and test various situations to which the system is typically submitted on a day-to-day. This thesis features the mathematical model of water supply system of the Federal University of Rio Grande do Norte, was modeled all the elements present on your system. Three controllers are implemented in simulation level, and they were compared their performance: servo type 1, the linear predictive controller and a non-linear predictive control. The purpose is demonstrate that we can use the model system for testing and simulation of operating conditions and tuning the controller to best performance of the water supply system.
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Avalia??o energ?tica e das emiss?es de gases de efeito estufa do Sistema Integrado de Abastecimento de ?gua de Feira de SantanaGuanais, Ana Luiza da Silva Rezende 11 March 2015 (has links)
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Previous issue date: 2015-03-11 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Considering the importance of the sanitation sector for the development of a country and energy costs and the potential environmental impacts associated with it, this paper proposes the application of Life Cycle Assessment (LCA) to calculate the energy intensity and greenhouse gas (GHG) Water Supply System of Feira de Santana (SIAA-FSA). They were identified in the supply chain system steps with higher energy costs and proposed improvement scenarios. The production chain of chemical inputs, transportation of supplies, electricity and replacement of pipes in the network to maintain the system were considered. Energy intensity - IE the total system was 3.51 kWh/m3 of water consumed. The step of capturing and distributing water were the most important in IE, because the consumption of electric pumping energy represented 86% of IE. For the impact category chosen in the IPCC method (2007) 100 years, GHG emissions from the SIAA-FSA were 0.47 KgCO2eq / m3de water actually consumed, 75% resulting from the use of electricity. Alternative scenarios evaluated showed significant improvements over the current setting and more rational use of inputs water, electricity and chemicals. / Considerando a import?ncia do setor de saneamento para o desenvolvimento de um pa?s e os encargos energ?ticos e os potenciais impactos ambientais associados a ele, o presente trabalho prop?e a aplica??o da Avalia??o do Ciclo de Vida (ACV), para o c?lculo da intensidade energ?tica e a emiss?o de Gases de Efeito Estufa (GEE) do Sistema de Abastecimento de ?gua de Feira de Santana (SIAA-FSA). Foram identificadas na cadeia produtiva as etapas no sistema com maiores encargos energ?ticos e propostos Cen?rios de melhoria. A cadeia de produ??o dos insumos qu?micos, transporte dos insumos, energia el?trica e substitui??o dos tubos na rede para a manuten??o do sistema foram consideradas. A intensidade energ?tica ? IE total do sistema foi 3,51 kWh/m3 de ?gua consumida. A etapa de capta??o e distribui??o de ?gua foram as mais relevantes na IE, pois o consumo de energia el?trica do bombeamento representou 86% da IE. Para a categoria de impacto escolhida no m?todo IPCC (2007) 100 anos as emiss?es de GEE do SIAA-FSA foram de 0,47 KgCO2eq/m3de ?gua efetivamente consumida, 75% decorrente do uso de energia el?trica. Os Cen?rios alternativos avaliados demonstraram melhorias significativas em rela??o ao Cen?rio atual, com usos mais racionais dos insumos ?gua, eletricidade e produtos qu?micos.
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Avalia??o do desempenho dos sistemas de ?gua e esgoto da Regi?o Metropolitana de Campinas / Performance Evaluation of Metropolitan Region of Campinas water and sewerage systemsBaboni, Maria Paula Minorin 28 July 2018 (has links)
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MARIA PAULA MINORIN BABONI.pdf: 3935036 bytes, checksum: 6b16b5f82fcb82f4f4e69e7cfd8367d7 (MD5) / Made available in DSpace on 2018-08-09T11:58:02Z (GMT). No. of bitstreams: 1
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Previous issue date: 2018-07-28 / To maximize basic sanitation benefits, it?s necessary to solve the challenge of conflicting objectives. As the performance depends on the value of the one who evaluates, this research proposes to evaluate the sanitation from the perspective of different stakeholders that have conflicting objectives: the User Population - PU and the Service Provider - PS. In order to verify how the municipalities placed themselves in each perspective and in the joint vision, this research proposed to classify the Services of Water Supply and Sanitary Sewage of the municipalities of the Metropolitan Region of Campinas, from the vision of the PU and the PS, during the years of 2014 and 2015, according to the relations of efficiencies. Data Envelopment Analysis was used to evaluate the efficiencies of the municipalities in the two views, considering the CCR model oriented to Output and the data provided by the SNIS and IMP, and the Malmquist Index in order to evaluate the movement of the municipalities. It was verified that the majority of the municipal policies favored the PS in detriment of better services for the PU. The municipalities that reached the Great Balance were Engenheiro Coelho and Americana in 2014 and 2015 and Cosm?polis in 2015. In addition, the dominant force of advancement towards the PS occurred due to Technological Progress rather than to the improvement of municipal relative efficiency in the period, while the forces advancing towards the PU were results of the progress of the Frontier and relative municipal efficiency. As regards the characterization of the service providers, it was concluded that the Scope is decisive in the view of the stakeholder when compared to the Legal Nature and the Property, since the municipalities operated by the Regional provider were considered efficient in the view of the PS but inefficient in the vision of the PU, obtaining the last positions in the Ranking of the User Population. / A quest?o dos objetivos conflitantes deve ser resolvida para universalizar os servi?os do saneamento, foco estrat?gico do setor. Para tanto, prop?e-se avaliar o desempenho dos sistemas de abastecimento de ?gua e esgotamento sanit?rio da Regi?o Metropolitana de Campinas ? RMC sob a ?tica de stakeholders que t?m objetivos conflitantes: a Popula??o Usu?ria ? PU e o Prestador de Servi?os ? PS. Os servi?os de ?gua e esgoto foram classificados a partir da vis?o da PU e do PS durante os anos de 2014 e 2015, segundo suas rela??es de efici?ncia, para verificar como os munic?pios colocavam-se em cada perspectiva e na vis?o conjunta. Utilizaram-se a An?lise Envolt?ria de Dados ? DEA para avaliar a efici?ncia municipal, considerando o modelo CCR orientado para Sa?da e os dados p?blicos disponibilizados pelo Sistema Nacional de Informa??es sobre Saneamento ? SNIS e pelo produto Informa??es dos Munic?pios Paulistas ? IMP da Funda??o Sistema Estadual da An?lise de Dados - SEADE, e o ?ndice de Malmquist ? IM para avaliar o comportamento dos munic?pios no per?odo. Verificou-se que a maioria das pol?ticas municipais privilegiavam o PS em detrimento de melhores servi?os para a PU nos dois anos e que os munic?pios que atingiram o Equil?brio ?timo foram Engenheiro Coelho e Americana, em 2014 e 2015, e Cosm?polis em 2014. No sentido do PS, o avan?o ocorreu devido ao Deslocamento da Fronteira ? EFC e o retrocesso de Cosm?polis e Santo Ant?nio de Posse ocorreu devido ao Emparelhamento ? TEC. No sentido da PU, o avan?o ocorreu tanto por causa do TEC quanto do EFC. O retrocesso de Holambra ocorreu tanto por conta do TEC quanto do EFC. A Abrang?ncia do prestador de servi?o, se comparada ? Natureza Jur?dica e ao Direito, foi decisiva na vis?o do stakeholder, j? que os munic?pios operados pelo prestador regional foram ineficientes para a PU e eficientes para o PS, em 2014 e 2015.
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