ターボ機械
Online ISSN : 1880-2338
Print ISSN : 0385-8839
ISSN-L : 0385-8839
論文
二重反転形小型ハイドロタービンの高落差設計に関する研究開発
細谷 拓司重光 亨川口 裕輝稲本 宅哉石黒 武
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ジャーナル フリー

2020 年 48 巻 10 号 p. 625-632

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It is requested that the hydroturbine be a small size and have high performance. Therefore, the contra-rotating rotors are suitable for a small hydroturbine, because it can be expected to achieve compactification of radial direction and high performance. However, a conventional contra-rotating rotor was composed of two axial flow rotors, so it had a specification suitable for high flow rate and low head. In order to achieve small hydroturbine suitable for low flow rate and high head, we propose a new type of contra-rotating rotors, which are composed of a hybrid rotor and a centrifugal rotor. In order to verify the feasibility of the small hydroturbine, we manufactured an experimental apparatus and investigated the performance of the hydroturbine. In the present paper, we compare the experimental results with the numerical analysis results, and the feasibility of the small hydroturbine was examined.

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