Abstract
The use of the clean natural/renewable energy resources has been promoted in the power generation, as those scarcely emit greenhouse gases. The waterpower has larger energy density than the wind power and the solar power, and there are many hydraulic power stations. The large-scale station with a dam, however, is undesirable because such public works damage natural ecosystem in rivers andlor 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 utilizing the yawing motion of the submerged blades in rivers, irrigation channels, and so on. In this report, the concepts of the unit are explained, and the output characteristics are discussed experimentally using the trial model.
