Processos fluviais em barras de soldamento: rio Paraná - PR

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Hidrogeologia do Sistema Aqüífero Bauru no município de São José do Rio Preto (SP)

Pós-graduação em Geociências e Meio Ambiente - IGCE

Avaliação dos desempenhos hidráulico e econômico de um sistema de irrigação localizada utilizando programação linear

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação de um pulverizador de volume ultra baixo na cultura do café para o controle de Leucoptera coffeella (Lepidoptera: Lyonetiidae)

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Modelagem de um servomecanismo para acionamento da placa swashplate de uma bomba de pistões axiais de vazão variável

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de um aplicativo para processamento de dados e criação de um simulador computacional de uma transmissão para veículos

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Avaliação do impacto do reservatório de Três Irmãos sobre a superfície potenciométrica do aquífero livre na cidade de Pereira Barreto (SP): uma abordagem numérica e geoestatística

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desenvolvimento e avaliação de indicadores de eficiência hidraúlica e energética para sistemas de abastecimento de água como ferramenta de suporte à tomada de decisões

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação de funcionamento das bombas hidráulicas do sistema de tratamento de efluentes da Empresa Parker Hannifin

On the field of the projects of hydraulic systems exists a lot of worries when we talk about the calculate of hydraulic pumps. In this case some facts must be considerate: length of tubes, fluid characteristics, height gauge, temperature, pressure, characteristics of tubes, flow required and others. For that mathematic calculates must be developed with the objective to optimize hydraulic pumps and agree to find an ideal machine (that don't requires more energy than necessary or less energy than it requires; that is the more critical case, cause exists the risk that the fluid pumped do not agree to become in your destiny). The wrong calculate of this machine can super-size its, bringing an excessive energy consumption. Actually it's an important subject because we are in the age of lack of energy what turn it more expensive. So the correct sizing of a hydraulic pump is connected with the fact that you have to uses the enough energy resources avoiding waste. The calculate of ideal pump in the pumping system is studied during years and a lot of specialists in this subject develop equations and theories to calculate its. Some researches study about this subject and all of them become to the same conclusion: to find the ideal pump we have to know the characteristics of fluid (cinematic viscosity), the required flow , overall yield (overall of motor x overall of pump) the high gauge or discharge pressure and the loss of repression. The pressure drop can be calculated with different theories: using Hazen-Williams, Darcy e Weisbach or Chézy (1775 - that starts the researches to calculate the pressure drop). Although the most used theory and what is most near to reality is the Darcy's equation. So, in this job the Darcy's equation were choice to calculate the drop pressure that consider what kind of flow we are studying: laminar or turbulent. The determination of the best pump to be used in the ... ( complete abstract click eletronic access below)

Comissionamento de turbinas hidráulicas: ensaios de faixa operativa, índex, test e rejeição de carga

With growing electricty demand, the importance of generation through hydropower, a renewable energy source, it’s of great importance. This demand derives from the country’s growth, as well as events that will occur in the coming years. The commission has a crucial role before the entry into operation of hydroelectric plant, sice, ensures a good operation of hydraulic and electrical systems, as well as the safety of the installation. This paper is a case study, commissioning in a PCH in especially the most important tests, such as range operation, índex tes and load rejection. In these trials we can get a Idea of the actual behavior of the unit, as well as future operation maneuvers, and evidence of real efficiency

Condutividade hidráulica saturada e direcional em xisto: ensaios em laboratório. -

Pós-graduação em Geociências e Meio Ambiente - IGCE

Estudo da influência da cinza de casca de arroz e da cal nas propriedades do solo-cimento auto-adensável

Pós-graduação em Engenharia Civil - FEIS

Sistema fotovoltaico monocristalino para bombeamento de água

Since ancient times, it has been a huge challenge to all people around the world to manage to get their fresh water, keeping it clean and providing it to every human being, so that it can be used for their daily needs. This is especially true for small properties in the countryside and in isolated areas with low demographic density. Pumping the water in those regions is a solution that rationalizes its use in domestic chores, in animal rearing and in the irrigation systems of cultivated areas. Making feasible local, renewable and non-polluted energetic alternatives is the aim for those areas that are usually far away from the public electric network. Using photovoltaic solar energy is the alternative now proposed. For this objective was built a system with two monocrystalline panels, one pump, two water tanks, two level sensors and a solenoid valve to pump water, using a pump powered an array of monocrystalline solar panels. The main goal was to compare their rate of water flow and their energy consumption. The use of one data acquisition equipment allowed collecting meteorological, electrical and hydraulic values, and also serving for the control and activation of the pumping system. During four months in a row as from April 2009, arrangements with one or two panels were tested. Mathematics correlations and adjustment lines were used to interpret the behavior of obtained dataset. During the analyzed period the system followed the linear equations with great accuracy. The daily average amount of water pumped by the several tested arrays stayed between 1,100 and 2,500 liters, and that is enough to supply a small rural property. The pumping system with two panels effectively showed the major amount of water, but a system with one panel can be an economical solution until 1,500 liters on day. It did not characterize a direct relationship between power or quantity of photovoltaic panels and daily outflow of water pumping.

Desenvolvimento de software para avaliação dos desempenhos hidráulico e econômico de pivôs centrais

Pós-graduação em Agronomia (Proteção de Plantas) - FCA