抄録
The aim of this investigation was to improve power performance of Savonius hydraulic turbine utilizing small stream for electric generation. An attempt was made to increase the power coefficient of runner by use of a flat shield plate placed upstream of the runner. It was clarified the relationship between setting condition of the runner with the shield plate and power performance by experimentally. As a result the best installation condition of the runner with shield plate was revealed, and then the maximum power coefficient of runner is achieved for 47%. In addition we considered effect of the shield plate and influence of installation condition on the runner performance with the shield plate by flow visualization around the runner.
