The experimental study on characteristics of Darrieus type turbine for the tidal power generation

Abstract

The Darrieus turbine was developed for wind mill at first. An example of its application to water turbine is found in the Darrieus turbine installed in duct for a low head power generation, but no example is known for application in natural water channel. The anther has developed the Darrieus type turbine, that is suitable for the tidal current power generation with an aim at establishing the tidal current power generation technology through demonstration at test channels and oceans. The efficiency of the tidal current power generation is in fluenced by the characteristic of the turbine. The characteristic of the Darrieus type turbine is mainly affected by a solidity, and a number of blades. So we experimented the Darrieus type turbine at test channels, to find the most suitable values of the rotor solidity and the number of blades. This paper describes and inspects those test results.