2010 Fiscal Year Final Research Report

Micro Hydroturbine and Preventive of Air-Entraining Vortices

Research Project

Project/Area Number	21780232
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Agricultural environmental engineering
Research Institution	University of Miyazaki
Principal Investigator	HIYOSHI Kenji University of Miyazaki, 農学部, 助教 (20325731)
Project Period (FY)	2009 – 2010
Keywords	自然エネルギー / 小水力エネルギー / 水車 / 空気吸込渦 / 低コスト
Research Abstract	The energy collected by a small-scale fall difference micro hydroturbine is converted into the electrical energy with the dynamo. The net head was assumed to be 1.5m, and flowing quantity and the hydroturbine efficiency by runner's angle difference were clarified. The same size as the diameter of the runner corn was tested. The effect was admitted in the removal of the air-entraining vortices as for this, and the augmentation of the power output was confirmed. It was able to be confirmed that the air-entraining vortices was prevented by using corn even if flowing quantity was a little, and the water mill efficiency did not decrease.