2021 Fiscal Year Final Research Report
Tidal Current Power System with Spiral Flow Collector
Project/Area Number |
19K05353
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 31020:Earth resource engineering, Energy sciences-related
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Research Institution | Saga University |
Principal Investigator |
KINOUE Yoichi 佐賀大学, 海洋エネルギー研究所, 教授 (50274486)
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Co-Investigator(Kenkyū-buntansha) |
永田 修一 佐賀大学, 海洋エネルギー研究所, 特任教授 (30404205)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 再生可能エネルギー / 潮流発電 / 衝動タービン / 反動タービン / 旋回集流装置 |
Outline of Final Research Achievements |
A tidal current power system consisting of a bidirectional flow collector with conical geometry and a bidirectional impulse turbine is proposed, and its effectiveness is demonstrated by a model experiment in a circulating water tank. In addition, the swirling flow collection device named spiral flow collector is introduced and the flow around it is investigated by computational fluid dynamics and model experiments. As a result, the turbine axial flow velocity increases but the turbine output does not improve for the impulse turbine. On the other hand, when the spiral flow collector is combined with the reaction turbine, both the turbine axial flow velocity and the turbine output increase.
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Free Research Field |
流体工学
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Academic Significance and Societal Importance of the Research Achievements |
再生可能エネルギーの有効利用の一つとして,潮流エネルギーを用いた発電システムを提案しており,脱炭素社会へ向けた有意義な取り組みといえる.また提案された往復流に対応した潮流発電システムは, 180度向きが変わる流れに対して,固定設置されたまま発電を行うことができるので,規則的に反転する潮流の性質に対して親和性が高いといえる.また固定設置により可動部や制御部を減らせるので,簡素化と高耐久化により初期費用と保守費用の低減化が期待される特徴を有している点も意義深い.
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