Optimal structure of grated bottom intakes designed for small hydroelectric power generation

Rei Itsukushima, S. Ikematsu, M. Nakano, M. Takagi, Yukihiro Shimatani

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Water intake structure is an important element technology for small hydroelectric generation. Currently, intake structures with bar screens have been broadly introduced; however, these require constant maintenance to avoid the clogging of bars by dust or gravel. This study considers the optimal structure of bottom intakes by focusing on two criteria: efficient water intake and prevention of clogs by trapping trash. Grating was selected as the intake structure because it is convenient to construct, widely available, and cheaper than other materials. A flume experiment was conducted to examine the relation between the grating structure and the intake efficiency and trash-trapping rate. Results indicate a clear linear relation between the installation angle and water intake capacity. Furthermore, the trash-trapping rate is low for gratings that have high opening area ratios because their surface areas are small and friction resistance is low.

元の言語英語
記事番号034501
ジャーナルJournal of Renewable and Sustainable Energy
8
発行部数3
DOI
出版物ステータス出版済み - 5 1 2016

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Hydroelectric power
Power generation
Water
Gravel
Dust
Friction
Experiments

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment

これを引用

Optimal structure of grated bottom intakes designed for small hydroelectric power generation. / Itsukushima, Rei; Ikematsu, S.; Nakano, M.; Takagi, M.; Shimatani, Yukihiro.

:: Journal of Renewable and Sustainable Energy, 巻 8, 番号 3, 034501, 01.05.2016.

研究成果: ジャーナルへの寄稿記事

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