Evaluation of vertical axis turbine characteristics for tidal current power plant based on in situ experiment
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Cited 28 time in
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Title
- Evaluation of vertical axis turbine characteristics for tidal current power plant based on in situ experiment
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Author(s)
- Han, Sang-Hun; Park, Jin-Soon; Lee, Kwang-Soo; Park, Woo-Sun; Yi, Jin-Hak
- KIOST Author(s)
- Park, Jin Soon(박진순); Park, Woo Sun(박우선); Yi, Jin-Hak(이진학)
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Alternative Author(s)
- 한상훈; 박진순; 이광수; 박우선; 이진학
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Publication Year
- 2013-06-01
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Abstract
- The Korean peninsula has a number of coastal sites where the rhythmic rising and lowering of the water surface owing to tides results in a strong tidal current. The kinetic energy of these currents can be efficiently exploited by using tidal current turbines. This study investigated the characteristics of a vertical axis turbine based on an in-field test. After 2.2 and 3.0 m diameter helical turbines were installed in a fast narrow channel on the Korean coastline, the current velocity, torque, rotational speed, power, and other factors were measured. The efficiency of the 2.2 m diameter helical turbine was about 30% at a current velocity of 1.5-1.9 m/s, and the 3.0 m diameter turbine had an efficiency of 33% at a current velocity of 2.0-3.4 m/s. The average tip speed ratio (TSR) of the 2.2 m diameter turbine was 2.41; the 3.0 m diameter turbine showed a similar TSR of 2.39. The optimum TSR for helical turbines more than 2.2 m in diameter seems to be 2.4. The efficiency of the entire power generating system was nearly constant at current velocities higher than 2.2 m/s. Thus, a power generating system using tidal currents can produce electric power stably over appropriate current velocity. (C) 2013 Elsevier Ltd. All rights reserved.
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ISSN
- 0029-8018
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/3165
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DOI
- 10.1016/j.oceaneng.2013.03.005
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Bibliographic Citation
- OCEAN ENGINEERING, v.65, pp.83 - 89, 2013
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Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
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Keywords
- Tidal power plant; Vertical axis turbine; Helical turbine; Turbine efficiency; Tip speed ratio
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Type
- Article
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Language
- English
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Document Type
- Article
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