クロスフロー水車に関する研究 : 羽根枚数および羽根出口角の影響

概要

論文の詳細を見る
It is feared that the blade passage of a cross-flow turbine is obstructed by floating matters. Therefore, it is important to decrease the number of blades without a large drop of efficiency. Also, the blade exit angle has an important influence upon the flow at the first-stage exit and the second-stage inlet. In this report, the effects of he blade exit angle and the number of blades were experimentally investigated on the performance and the flow condition of a cross-flow turbine. It was found that the exit angle β_2=80~90°is the best from the viewpoint of turbine performance. The runner with a large blade turning angle. The number of blades M=30 shows the best efficiency, but the difference in efficiency between 22 and 34 blades is within 3%.
一般社団法人日本機械学会の論文
1986-01-25