| Summary: | 碩士 === 國立臺灣科技大學 === 機械工程系 === 102 === This research uses ANSYS FLUENT software to analyze the new vertical-axis wind turbine in order to investigate the relationship between the flow field, force and torque. When conventional vertical-axis wind turbine blades translate wind power into thrust on the windward side, the blade of upwind side also generate resistance against the effective moment; The new vertical-axis wind turbine has fixed outer guide blades in order to make wind be imported effectively to the rotor blades on the windward to improve the positive torque. In addition, block the wind the guide blades which hits on the rotor blades, on the upwind side. Thus, the reverse torque will be declined.
Finally, using Taguchi method to find the optimal experimental parameters by 9-level orthogonal arrays. Four factors, the angle of rotor blades, the number of rotor blades, the angle of fixed outer guide blades and the number of fixed outer guide blades. The optimal parameters are rotor blade angle of 90 degree, 15 rotor blades, the fixed outer guide blades angle of 48 degree and 12 fixed outer guide blades.
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