2013 Fiscal Year Final Research Report
R&D of High Performance VAT with Active-Pitch-Controllable Blades for Marine and Tidal Current Generation
| Project/Area Number |
23560975
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Nihon University |
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Principal Investigator |
IKOMA Tomoki 日本大学, 理工学部, 准教授 (50302625)
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| Co-Investigator(Renkei-kenkyūsha) |
OTSUKA Fumikazu 日本大学, 理工学部, 助教 (60513984)
RHEEM Chang-kyu 東京大学, 生産技術研究所, 教授 (70272515)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 潮流発電 / 垂直軸水車 / 可変ピッチ制御 / 水車効率 |
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| Research Abstract |
This study investigated the application of pitch-controllable blades to a vertical axis marine turbine in order to be comparable to a horizontal axis marine turbine with high performance. The study developed a turbine model with variable-pitch mechanism and conducted model experiments in uniform flow in order to measure the turbine power. The net performance which was actual turbine power of the model was about 15% despite large mechanical friction. A Darrieus type without the pitch control was unable to rotate absolutely. The gross efficiency of the model taken from the forced rotation test was above 55% and it is huge efficiency.
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