Este trabalho foi realizado no Laboratório de Hidráulica do Departamento de Engenharia Rural da ESALQ/USP, com o objetivo de modelar, otimizar e avaliar um carneiro hidráulico. Para isso foi desenvolvido um modelo teórico, validado no laboratório através da construção de uma eletroválvula comandada eletronicamente por computador. Através da filmagem do jato de água e utilizando método das coordenadas determinou-se a velocidade do jato de água da tubulação de alimentação do carneiro, para três alturas de alimentação e três comprimentos diferentes. Posteriormente foi construído o carneiro hidráulico em PVC, sendo utilizada a eletroválvula como válvula de escape e, por meio de um microprocessador, obtive-se diferentes tempos para o fechamento da válvula, variando entre 0,2 s e 1,6 s. Foram testados dois materiais como tubulação de alimentação, PVC 25mm de diâmetro nominal e aço galvanizado 19,05 mm de diâmetro nominal para três comprimentos e alturas de alimentação. A máxima vazão de recalque obtida foi de 224 L/h, sendo a pressão de recalque de 54 kPa, sendo a tubulação de alimentação PVC, e a altura de alimentação de 2,23 m, para um tempo de pulso da eletroválvula de 0,2 s. O maior rendimento obtido foi 62 % sendo a tubulação de alimentação de PVC, para um tempo de pulso de 0,2 s com uma pressão de 74 kPa e vazão de recalque de 112 L/h. / This work was developed in the Hydraulics Laboratory of the Department of Rural Engineering at ESALQ/USP., with the goal of modeling, optimize and to evaluate a hydraulic ram. For that was developed a theoretical model, validated in the laboratory through the construction of an electronic valve commanded by a computer. Through the filming of water jet and using method of the coordinates tot determined the speed of water jet of the alimentation piping of the ram for three different heights and lengths. It afterwards was built the hydraulic ram in PVC, being used an electronic valve as pulse valve, and by means of the microprocessor Basic Step, was obtained different times to the shutdown of the valve, varying between 0,2 s and 1,6 s. Were tried two material as alimentation piping, PVC 25mm nominal diameter and galvanized steel 19,05 mm nominal diameter for three alimentation lengths. The flow maxim obtained was 224 L/h, being the pressure of emphasizes of 54 kPa, having as alimentation piping PVC, and the height of alimentation of 2,23 m for, for a time of .shutdown of electronic valve of 0,2 s. The biggest obtained revenue was 62%, being the alimentation piping of PVC, for a time of shutdown of 0,2 s with a pressure 74 kPa and a flow of 112 L/h.

Este trabalho foi realizado no Laboratório de Hidráulica do Departamento de Engenharia Rural da ESALQ/USP, com o objetivo de modelar, otimizar e avaliar um carneiro hidráulico. Para isso foi desenvolvido um modelo teórico, validado no laboratório através da construção de uma eletroválvula comandada eletronicamente por computador. Através da filmagem do jato de água e utilizando método das coordenadas determinou-se a velocidade do jato de água da tubulação de alimentação do carneiro, para três alturas de alimentação e três comprimentos diferentes. Posteriormente foi construído o carneiro hidráulico em PVC, sendo utilizada a eletroválvula como válvula de escape e, por meio de um microprocessador, obtive-se diferentes tempos para o fechamento da válvula, variando entre 0,2 s e 1,6 s. Foram testados dois materiais como tubulação de alimentação, PVC 25mm de diâmetro nominal e aço galvanizado 19,05 mm de diâmetro nominal para três comprimentos e alturas de alimentação. A máxima vazão de recalque obtida foi de 224 L/h, sendo a pressão de recalque de 54 kPa, sendo a tubulação de alimentação PVC, e a altura de alimentação de 2,23 m, para um tempo de pulso da eletroválvula de 0,2 s. O maior rendimento obtido foi 62 % sendo a tubulação de alimentação de PVC, para um tempo de pulso de 0,2 s com uma pressão de 74 kPa e vazão de recalque de 112 L/h. / This work was developed in the Hydraulics Laboratory of the Department of Rural Engineering at ESALQ/USP., with the goal of modeling, optimize and to evaluate a hydraulic ram. For that was developed a theoretical model, validated in the laboratory through the construction of an electronic valve commanded by a computer. Through the filming of water jet and using method of the coordinates tot determined the speed of water jet of the alimentation piping of the ram for three different heights and lengths. It afterwards was built the hydraulic ram in PVC, being used an electronic valve as pulse valve, and by means of the microprocessor Basic Step, was obtained different times to the shutdown of the valve, varying between 0,2 s and 1,6 s. Were tried two material as alimentation piping, PVC 25mm nominal diameter and galvanized steel 19,05 mm nominal diameter for three alimentation lengths. The flow maxim obtained was 224 L/h, being the pressure of emphasizes of 54 kPa, having as alimentation piping PVC, and the height of alimentation of 2,23 m for, for a time of .shutdown of electronic valve of 0,2 s. The biggest obtained revenue was 62%, being the alimentation piping of PVC, for a time of shutdown of 0,2 s with a pressure 74 kPa and a flow of 112 L/h.

This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.

This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.

This study consists of the development of a ram pump, which will allow the pumping of water without the need of external energy sources. It is considered an analysis of interest since, once it is finished; it can be applied in reality improving and facilitating different activities related to agriculture and health. Previous studies have been made related to the ram pump; however, in this case, it is intended to understand the system that has been built in the laboratory in order to find the best combination of parameters that will lead to obtain the highest possible efficiency.  The study will be carried out by studying scientific literature and by experimenting in the laboratory. Encompassing the experimental and literary field, it is expected to understand perfectly the advantages and disadvantages of the ram pump in order to determine if it is worth it to install in certain places. After the study, the most favourable parameters for the operation of the Bruzaholms Bruk pump have been obtained. It has been found that the use of a longer drive pipe favours the operation of the system, as it is possible to obtain a higher efficiency, although it must be taken into account that the mentioned length needs to be controlled, as it could reduce the working rhythm of the pump. It has also been seen that the pump gives better results if the impulse valve is completely opened. Finally, it has been proven that, as long as the height difference between the two tanks is enough, increasing the height of the water source will favour the operation of the system.