Abstract
Recently, ultra low-head hydropower in the small rivers is hardly utilized. Orthoptere water turbine has been developed for the purpose of generating electricity at ultra low head hydro energy. This paper describes performance improvement of Orthoptere water turbine with optimized cross-sectional area. In this study, the performance is evaluated by experimentally with change of water flow rate, water level, and aspect ratio about the type of triple blades. The test results of experiment show that the maximum power coefficient increases at same flow rate with optimized cross section.
