サボニウス風車の出力特性の改善(総合科学系)

概要

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This paper describes an experimental study on improvement in output characteristics of Savonius wind turbine using guide vanes around the turbine rotor. One or two flat or curved vanes are used in this experiment. When one guide vane is properly placed in front of the turbine rotor, the maximum wind turbine output increased to about 1.2 times compared with that without guide vane. Furthermore, when two guide vanes are properly placed around the rotor, wind turbine output increased about 1.4 times compared with that without guide vane. To know the reason why such increase of the turbine output occurs, flow visualization was done about those flows. These results of the flow visualization showed that one guide vane placed in front of the. returning side of the rotor blade blocks the flow to the rotor, and another vane placed near the forward going rotor blade deflects flow to the rotor. The former vane decreases counter force to the blade and the latter one concentrates flow to the rotor, as the result wind turbine torque increases.
長野県短期大学の論文