2014 Fiscal Year Final Research Report
Development of Twin Impulse Turbine for Wave Energy Conversion
| Project/Area Number |
24360362
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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 | Matsue National College of Technology |
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Principal Investigator |
TAKAO Manabu 松江工業高等専門学校, 機械工学科, 教授 (00332057)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 波力発電 / 衝動タービン |
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| Outline of Final Research Achievements |
As a system using a conventional unidirectional air turbine in oscillating water column (OWC) based on a wave energy plant, a twin unidirectional impulse turbine topology has been suggested in previous studies. The performances of a unidirectional impulse turbine under steady flow conditions were investigated experimentally by using a wind tunnel in this study. Then, mean efficiency of the twin impulse turbine in bidirectional airflow has been estimated by a quasi-steady analysis using experimental results in order to propose the suitable turbine geometry on the performance. On the other hand, the mean efficiency is considerably lower than the efficiency under steady flow condition because reciprocating air flow can’t be rectified adequately by a unidirectional turbine. In order to improve the efficiency, using fluidic diode is discussed. In this study, two different fluidic diodes were discussed by CFD and a wind tunnel test.
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| Free Research Field |
流体工学
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