Performance of tandem propellers counter-rotating obliquely to tidal stream

Nak Joong Lee, Toshiaki Kanemoto, Kazuo Kuwano, Isao Samura

研究成果: Conference contribution

抄録

The authors have developed a counter-rotating type hydroelectric unit where tandem runners counter-rotate inner and outer armatures in a peculiar generator, and the unit has penetrated into the market in the small/micro hydropower. The unit has promising advantages such as the rotational torque is counter-balanced itself between the front and the rear runners, namely the inner and the outer armatures. Such technology has been provided for the tidal power unit moored to the seabed with one cable. Tidal stream is abundant and clean energy resource whose power is predictable and sustainable. To generate power effectively from the stream, the unit must effectively work in response to change of the flow direction not only in day cycle but also in unsteady condition with turbulent fluctuation. This paper discusses the effects of the flow direction on the output of the tandem propellers by commercial Computational Fluid Dynamics (CFD) code.

本文言語English
ホスト出版物のタイトルProceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017
出版社Society of Petroleum Engineers
ページ253-256
ページ数4
ISBN(電子版)9781880653975
出版ステータスPublished - 2017
外部発表はい
イベント27th International Ocean and Polar Engineering Conference, ISOPE 2017 - San Francisco, United States
継続期間: 2017 6 252017 6 30

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
ISSN(印刷版)1098-6189
ISSN(電子版)1555-1792

Conference

Conference27th International Ocean and Polar Engineering Conference, ISOPE 2017
国/地域United States
CitySan Francisco
Period17/6/2517/6/30

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 海洋工学
  • 機械工学

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