2014 Fiscal Year Final Research Report
Counter-Rotating Type Tidal Range and Stream Power Unit: Challenge to the Future
| Project/Area Number |
24560201
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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 |
Fluid engineering
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 海洋資源 / 回生可能エネルギー / 新エネルギー / 潮汐発電 / 潮流発電 |
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| Outline of Final Research Achievements |
Tidal range power unit: The blades of the tandem runners suitable for the falling and the rising tides were optimized and the performances were confirmed as follows. (1)The hydraulic efficiency corresponds to the efficiency of the blades designed exclusively for the one directional flow. (2)The unit can be provided for on-cam operations. (2)The flow attacks to the leading edge with the large angle and discharges along the blade camber to get the momentum change.
Tidal stream power unit: The experiments in the water tunnel bring (1) hydraulic forces acting on the pile and (2) behaviors of the unit moored with one rope. The tandem propeller were also optimized through the numerical simulation and the experiments. That is, (3) the blade thickness, the camber and the position of the maximum camber, (4) the blade load in the radial direction to suppress the blade tip vortex, and (5) the rotational speeds to suppress the cavitation, were optimized to get the higher efficiency.
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| Free Research Field |
流体工学
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