806 Development of Yawing Type Hydroelectric Unit(2)

The waterpower has larger energy density than another renewable energy sources, and there are many hydroelectric power stations. The exploitation of the large-scale station with a dam, however, is undesirable because such public works damage natural ecosystem in rivers and/or forests. To promote more and more the hydroelectric generation for the next leap, it is necessary to utilize effectively mini/micro/nano hydropower in coexisting with natural ecosystem. This research develops a new type hydroelectric unit with some submerged blades which yaw in the right and left against the stream of rivers, irrigation channels, and so on. In this report, the concepts of the unit are presented, and the output characteristics and the flow conditions are discussed experimentally and numerically