2015 Fiscal Year Final Research Report
Ultra-small hydroelectric power device can be installed in small-scale low-drop flow
| Project/Area Number |
24580373
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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 |
Agricultural environmental engineering
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| Research Institution | University of Miyazaki |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 小水力 / 発電 / 再生可能エネルギー / 水車 / 空気吸込渦 |
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| Outline of Final Research Achievements |
A propeller-type ultra-small hydroelectric energy recovery system was developed. When installed in a certain height of the cone in the hydro-turbine, air suction vortex disappears, the efficiency was increased. Using a three-dimensional flow velocity meter were analyzed for the hydro turbine in the flow. Without the cone has a non-uniformity of the flow velocity distribution, there was a flow rate is slow part. With the cone, the flow rate is more than 1.6 m / s, the flow direction has been unified.
By increasing the angle of the runner blade was studied easily runners to pass dusts. Six-blade when the lower wing angle, efficiency is increased. 3-bladed when a low wing angle, efficiency is increased. 3-bladed power generation power because it was up the hydro turbine shaft rotational speed is high. Runner 3 bladed has been found that can pass through even the size of the dust of the order of 8 cm.
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| Free Research Field |
農業環境工学
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