2015 Fiscal Year Final Research Report
Evaluation of bio-fouling effects on tidal turbines in the sea
| Project/Area Number |
25289319
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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 | Kyushu University |
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Principal Investigator |
Kyozuka Yusaku 九州大学, 総合理工学研究科(研究院), 教授 (80177948)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 潮流発電 / 付着生物 / 防汚塗料 / フジツボ / 実海域実験 / 抵抗試験 |
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| Outline of Final Research Achievements |
For the study of the bio-fouling effects on the tidal turbine performance, a bio-fouling observation by using test plates was conducted at the breakwater of Tabira port in Hirado Strait, Nagasaki Prefecture, where the maximum tidal speed is around 1.9 m/s. Test plates consist of 5 painted plates and 5 without paint were used. The observation was made to find the kind of bio-lives and the weight increase of the each plate every month and they were considered with the relation of water temperature and the chlorophyll-a. Acrylic paint lost the effect after 18 months but the normal bio-fouling paints were found to continue the bio-fouling effects.
For the evaluation of the effects on the performance of tidal turbine by the attaching of the red-barnacles, model experiments were conducted to obtain the relationship between the number of barnacles and the power coefficient of the turbine.
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| Free Research Field |
海洋環境工学
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