Se presenta una aplicación de la Dinámica de Fluidos Computacional (CFD) empleando el Método de Elementos Finitos (FEM) para el modelamiento del comportamiento de una Turbina Hidráulica de Flujo Cruzado (Cross Flow Turbine) de 50 kW (Q = 120 l/s, H = 50 m y ω = 124.61 rad/s), en el objetivo de explicar de forma metodológica numérica, los principios y supuestos clásicos de diseño, así como la búsqueda de su optimización. Como resultados se obtienen campos de presión y velocidad para diferentes condiciones (Q = 0 - 203.61 l/s, H = 9.40 - 580.71 m y ω = 25, 50, 100 y 125 rad/s) y regímenes (laminares, de transición y turbulentos) de operación, a partir de los cuales se cuantifican algunos indicadores del funcionamiento de la turbina (distribución de los vectores velocidad en el tramo de admisión, eficiencia y coeficiente del inyector directriz, curvas características de ...

An application of Computational Fluid Dynamics (CFD) using the Finite Element Method (FEN) for modeling the behavior of a 50 kW (Q = 120 l/s) Cross Flow Hydraulic Turbine is presented. H = 50 m and ω = 124.61 rad/s), with the objective of explaining in a numerical methodological way, the classical design principles and assumptions, as well as the search for their optimization. As results, pressure and velocity fields are obtained for different conditions (Q = 0 - 203.61 l/s, H = 9.40 - 580.71 m and ω = 25, 50, 100 and 125 rad/s) and regimes (laminar, transition and turbulent ) of operation, from which some indicators of turbine operation are quantified (distribution of velocity vectors in the intake section, efficiency and guideline injector coefficient, characteristic curves of the 50 kW turbine and of the unit turbine ). Finally, operating parameters of the turbine are projected for ...

The present work deals with the design, construction and characterization of a 500 W wind turbine prototype, using national technology. It includes the design and manufacture of each of the components of the wind turbine system - permanent magnet generator, wind rotor and steering elements; as well as the field evaluation to determine its performance. Its application is presented as an energy and socioeconomic solution for rural areas that have wind resources, thus contributing to the improvement of living conditions under the principle of taking advantage of local resources and preserving the environment. As results of the field tests we have the verification of the design conditions as well as its operation according to the wind resource. Although the system was dimensioned to reach a nominal power of 500 W at a wind speed of 8 m/s, in the field this power has been obtained at a wind s...