Análise da viabilidade técnica do aerogerador sem pás: um estudo de caso na Universidade Positivo

• Autor(a) principal: Figueiredo, Mariana Menegueti
• Data de Publicação: 2020
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório do Centro Universitário Braz Cubas
• Texto Completo: https://repositorio.cruzeirodosul.edu.br/handle/123456789/3218
• topic: Aerogerador sem pás; Vórtice; CFD; CNPQ::ENGENHARIAS

With the steady increase in energy demand, wind generation capacity is an alternative to complement the energy matrix. The wind turbines usually have two or three blades and the generation of electrical energy occurs with higher speed winds and at great heights. The Vortex Tacoma bladeless wind turbine is a new technology under development, uses low-speed winds and has a small structure, ideal for installation in urban areas such as houses and buildings. The structure of the equipment consists of a fixed base and a resonant rod, the modeling of the rod is not aerodynamic to maximize the aerodynamic instabilities and wind turbulences, because the greater the instability and resonance of the rod with the lateral forces of the wind, the greater the performance and energy capture. The energy capture occurs with the oscillation of the rod when the wind flows around the structure, creating a pattern of small von Kármán vortices. To analyze the technical feasibility of the wind turbine without blades, a case study was carried out at Universidade Positivo, based on the satellite image of the university campus obtained by Google Earth, topographic data obtained by the Curitiba Urban Research and Planning Institute and studies previously carried out on wind speeds in Curitiba and Universidade Positivo, with data collection using anemometer. Based on the analysis of the data from the ArcGIS 10.8 and AutoCAD 2020 software, it was observed that the highest point on the university campus is in the 970 meter indoor Olympic pool with an average wind speed of 2.28 m / s. In the SimFlow CFD software, a simulation was performed in which the release of vortices in a resonant rod was verified. Based on the simulations, the arrangement indicated for installing the Vortex was with the wind turbines nearby and diagonally. To increase the wind turbulence and the generation of vortexes, a spacing of 0.29 meters was chosen between the wind turbines. The exploration of the land was considered favorable for the installation of the Vortex Tacoma wind turbine, due to the amount of equipment that can be installed close by the effect of the vortex release mat and the necessary space of 1 m² for installation of the equipment, with 2.75 meters of height. Positivo University has a campus with an area of 424,800 m², with which various Vortex Tacoma equipment can be installed in different arrangements.