Reservoir Operation
Mostrando 37-48 de 77 artigos, teses e dissertações.
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37. Derivation of hedging operation rules of reservoir systems using genetic algorithms / Derivação de regras operacionais de proteção contra déficits de suprimento de sistemas de reservatórios via algoritmos genéticos
The operation rules constitute one of the main elements in the planning and management of water resources systems. The application of the standard operational rules can be present unsatisfactory in periods of drought or imminent drought. These rules can result in periods with deficits of great magnitude, leading the system to a highly vulnerable situation. M
Publicado em: 2006
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38. Optimized operation study applied to a hydropower reservoir system / Estudo da operação otimizada aplicada a um sistema de reservatórios destinado à geração de energia elétrica
Uma das aplicações mais importantes da análise de sistemas no planejamento de recursos hídricos diz respeito à determinação de estratégias operacionais de sistemas de múltiplos reservatórios, elementos indispensáveis aos aproveitamentos hídricos, cuja operação é alvo de análises que podem envolver muitas restrições e variáveis de decisão.
Publicado em: 2006
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39. Modelo de suporte a decisão para o otimização da operação de sistema de usinas hidroeletricas / A decision support tool for the optimization of the operation of a system of hydro-eletric plants
This dissertation has the objective of build a Decision Support Tool that gives a quick and easy way to analyze all the different alternatives to manage integrated a complex of hydroelectric reservoirs seeking the maximization of the benefits of the complex. The benefits of the complex were defined as the total potential gravitational energy of the hydraulic
Publicado em: 2006
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40. Modelo de suporte a decisão para o otimização da operação de sistema de usinas hidroeletricas / A decision support tool for the optimization of the operation of a system of hydro-eletric plants
This dissertation has the objective of build a Decision Support Tool that gives a quick and easy way to analyze all the different alternatives to manage integrated a complex of hydroelectric reservoirs seeking the maximization of the benefits of the complex. The benefits of the complex were defined as the total potential gravitational energy of the hydraulic
Publicado em: 2006
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41. As conseqüências do assoreamento na operação de reservatórios formados por barragens / The consequences of silting in the operation of dam made reservoirs
O assoreamento de reservatórios formados pela construção de barragens interfere inevitavelmente no seu volume útil. O volume útil é o compartimento responsável pelo armazenamento da água para o atendimento dos usos consuntivos e não consuntivos do sistema e a sua redução altera o atendimento das demandas. Nesta pesquisa foi investigada a interfer�
Publicado em: 2006
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42. Laparoscopic assisted radical cystoprostatectomy with Y-shaped orthotopic ileal neobladder constructed with non-absorbable titanium staples through a 5 cm Pfannensteil incision
INTRODUCTION: We performed a laparoscopic radical cystoprostatectomy followed by constructing a Y-shaped reservoir extra-corporeally with titanium staples through a 5-cm muscle-splitting Pfannenstiel incision. SURGICAL TECHNIQUE: Upon completion of the extirpative part of the operation, the surgical specimen was entrapped and removed intact through a 5-cm Pf
International braz j urol. Publicado em: 2005-08
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43. Influencia de restrições operacionais na definição das estrategias de produção
Production strategies for petroleum fields are chosen with the objective of achieving the best possible performance of the reservoir, considering physical, operational and economical constraints. In many published papers regarding production strategy optimization, only the reservoir is considered, simplifying the analysis process by not considering the opera
Publicado em: 2005
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44. AnÃlise dos efeitos dinÃmicos em reservatÃrios de grande extensÃo : estudo de caso : ReservatÃrio de Sobradinho
The work deals with dynamic effects analysis in big reservoirs, having as case study the Sobradinho reservoir. From the generation of numerical model of the land using database of the SRTM-90 (Shuttle Radar Topographic Mission, in cooperation of NASA, NIMA, DLR and ASI), tools created by Danish Hydraulic Institute (DHI) for hydrodynamic simulations had been
Publicado em: 2005
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45. SISTEMA INTELIGENTE DE OTIMIZAÇÃO DE ALTERNATIVAS DE DESENVOLVIMENTO DE CAMPOS PETROLÍFEROS / INTELLIGENT SYSTEM FOR OPTIMIZATION OF ALTERNATIVES FOR PETROLEUM FIELDS DEVELOPMENT
This work investigates the problem of optimization of alternatives for petroleum fields` development. A development alternative refers to the way a well-known and delimited petroleum field is placed in production. This process involves the determination of the number, localization and scheduling of producer and injector wells. Thus, the optimization of alter
Publicado em: 2005
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46. Estudo experimental de uma bomba de solução rica em refrigerador por absorção operando pela diferença de pressão do refrigerador / Experimental study of one pump of rich solution in refrigerator for absorption operation for the difference of pressure of the refrigerator
Was projected and constructed one diaphragm pump for one system of refrigeration for water-ammonia absorption that operates using expanded vapor it enters the same levels of pump action pressure. Through an experimental group of benches, the conditions of functioning of the pump had been verified that simulates a system of absorption in the suction phases an
Publicado em: 2005
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47. COMPUTATIONAL MODEL FOR RESERVOIR OPERATION WITH MULTIPLE USES / Modelo computacional para operaÃÃo de reservatÃrios com mÃltiplos usos
Os desafios atuais para gerenciamento dos recursos hÃdricos decorrentes dos acrÃscimos no consumo de Ãgua, exigem o desenvolvimento e utilizaÃÃo de modelos e mÃtodos computacionais para otimizaÃÃo destes recursos e minimizaÃÃo dos conflitos. Para atender a estas necessidades, se apresenta, neste trabalho, o Modelo de SimulaÃÃo EnergÃtica do Nort
Publicado em: 2005
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48. SIMULAÇÃO HIDROLÓGICA DO RESERVATÓRIO DO VACACAÍ- MIRIM / SANTA MARIA-RS UTILIZANDO O SISTEMA IPHSI / Hidrologic simulation of the Vacacaí-Mirim reservoir / Santa Maria-RS using the IPHS1 sistem
The growing human activity in the proximity of the rivers, has been accelerating the ground erosion process and consequently the aggradation of this rivers. Particularly in the reservoirs, the aggradation causes the reduction of the storage capacity and also the useful life of this structures. This research shows a assessment of the aggradation effects on th
Publicado em: 2004