Ingeniería Civil y Mecánica

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Subject: search.filters.subject.ROTOBOMBA

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    Diseño por elementos finitos de una roto bomba accionada con una turbina Pelton para riego de cultivos en los sectores vulnerables
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017-10) Valencia Chávez, Cristian Javier; Carrillo Rosero, Carlos Mauricio
    The present work of investigation is about the design of a Pelton turbine that works with conditions of net jump of 45 m and flow of 0.05 m3 / s, was realized with the module CFD to determine the conditions of operation like pressure, speed, turbulence. In the design of the turbine consists of the geometry of the spoons, the dimensions of the impeller, injector, injector needle and mechanical dimensioning of the turbine shaft. The CFD analysis was performed taking into account the considerations that the turbine works with biphasic flow, ie there is presence of water and air, was used rotating mesh to rotate the impeller, stationary mesh for injectors and part of the Case. A study was carried out on the convergence of the mesh and its influence on the results, as well as the different models of turbulence available. These results were validated by calculating the efficiency of the turbine and the triangle of velocities at the exit of the turbine spoons, obtaining errors of 12.19% and 8.43%, respectively.
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    Diseño por CFD de una Roto Bomba accionada con turbina Michell-Banki, para el bombeo de agua de riego en sectores vulnerables
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017-10) Moreno Duarte, Marlon Santiago; Carrillo Rosero, Carlos Mauricio
    The present experimental work is based on the computational fluid dynamics (CFD) study of a Michell Banki turbine to be able to pump water without the use of electric energy and without the use of fossil fuels as is the general tendency. The aim of this study is to analyze the correct functioning of the turbine. This study is based on the analysis of the pressure inside the turbine, the velocity of the fluid at the exit of the injector and through the rotor blades, the volumetric fraction of the fluid to determine if it meets the operating conditions of the turbine indicating that it is cross flow and the turbulence that is inside the turbine to be able to determine if the proposal of this design is appropriate and is not wasting too much energy in sectors that are not of greater influence. The study has been exposed to several modifications until the proper configuration of the turbine and through the simulations in the ANSYS SOFTWARE with the FLUENT module it has been possible to conclude that the design that is exposed is suitable for the operation of the Turbo-Pump.