ラジエターファンを活用した小型風車の性能特性に及ぼす風車上流の縮小管・拡大管の効果

概要

論文の詳細を見る
Abstract Thought a radiator-fan of cars had not been designed as a wind turbine, the fan is used as a small wind turbine with the 30cm diameter. Two ways of mounting of the wind turbine impeller are regular-pitch and reverse-pitch types. The characteristics of the wind turbine in a uniform flow are measured. The efficiency of the wind turbine at the regular pitch type is about 12% under the wind velocity 15m/s. In order to improve the efficiency of the wind turbine, nozzles and diffusers are set in the upstream of the small wind turbine. Effects of these nozzles and diffuses on the wind turbine performance are investigated experimentally. Nozzles do not make the wind velocity increase at downstream of the nozzles. As diffusers make the wind velocity increase only near the axis of the diffuser, the efficiency of the wind turbine is not improved with the diffusers.