| Summary: | 碩士 === 聖約翰科技大學 === 自動化及機電整合研究所 === 101 === Fewer and fewer fossil fuels on the planet, and now wind power has become one of alternative energy sources, the horizontal axis wind turbine noise problem exists, and the city wind speed between 4 ~ 12m / s, thus more suitable for urban households vertical axis small wind the motor. This study was to explore the different wind speeds, Savonius blade weight and blade overlap ratio than its mechanical energy and electrical energy conversion efficiency of the effect. This study of aluminum alloy materials, design of the overlap ratio of 0.15 S-shaped blade with two blades and three blades (B type), and improved Savonius blade (A type), the production of different weight and the upper plate the lower plateThe wind turbine number of leaves each two blade and three blades, set by wind tunnel and Savonius vertical axis wind turbine at different wind speeds, measuring two kinds of Savonius type blade resulting speed, torque and power generation and other performance data to explore the Savonius impellers weight and overlap ratio and conversion efficiency relationship. Studies have shown Savonius impellers lighter weight and have overlap ratio than for Savonius blade power coefficient grew 67%.
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