Comparison of Water Turbine Characteristics using Different Blades in Darrieus Water Turbines used for Tidal Current Generations.
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- Suzuki Katsuyuki
- Nihon University
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- Kiho Seiji
- Nihon University
Bibliographic Information
- Other Title
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- 潮流発電に用いるダリウス形水車におけるブレードの違いによる水車特性の比較
- チョウリュウ ハツデン ニ モチイル ダリウスガタ スイシャ ニ オケル ブレード ノ チガイ ニ ヨル スイシャ トクセイ ノ ヒカク
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Abstract
The use of renewable energies has been focused on for preserving environments and coping with the shortage of future energy supplies. In oceans, a tide reverses its current direction every six hours, and the current velocity changes into a sine wave after a period of time. Tidal current generation uses a generator to produce energy, changing the kinetic energy of current into a turning force by setting a water turbine in the tidal current. Therefore, it is considered to be very advantageous to use a water turbine that can always revolve in a fixed direction without any influence from tidal current directions. Water turbines with these characteristics are known as Darrieus water turbines. The Darrieus water turbines were modified for water from turbines originally developed for windmills. Darrieus water turbines have a difficulty in starting, but these days Darrieus water turbines have been developed with spiral blades, which make it easy to get the turbines started. However, there are very few reports regarding Darrieus water turbines with spiral blades, and therefore their characteristics are unknown. From the above points of view, this study devises and investigates spiral blade-Darrieus water turbines to clarify their characteristics through hydrographic experiments, and at the same time, it compares the characteristics of spiral-blade Darrieus water turbines with those of straight-blade ones.
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 123 (1), 76-82, 2003
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390001204598846336
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- NII Article ID
- 10010116522
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 6421734
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed