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Development of the hanging type vertical axis tidal current turbine

Research Project

Project/Area Number 16H04599
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionOsaka University

Principal Investigator

Akimoto Hiromichi  大阪大学, 工学研究科, 特任教授(常勤) (20283971)

Research Collaborator SENGA Hidetaka  
HARA Yutaka  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Keywords潮流タービン / 海流タービン / 垂直軸型タービン / 吊り下げ型 / 傾斜 / 浮遊軸型潮流タービン / 潮流発電 / 海流発電 / 吊り下げ式潮流タービン / 海上実験 / 曳航実験 / 係留実験 / 浮体式 / 吊り下げ式 / 水槽曳航実験 / 浮体式潮流タービン / 吊り下げ式垂直軸型タービン / 係留 / 揚力線理論 / 水槽実験 / 再生可能エネルギー / 海洋工学 / 流体工学 / 潮流・海流タービン / 海洋再生可能エネルギー / RaNSシミュレーション / 傾斜タービン
Outline of Final Research Achievements

Conventional marine current turbines require submerged electro mechanics and a huge support structure to keep the device in the strong tidal current. They deteriorate the economic performance of the system.
To solve these problems, the author propose a vertical axis water turbine supported at the upper end of its rotational shaft. Its electro mechanics are installed above the water surface at the upper end of the shaft. The turbine tilts according to water current speed so that the support structure will be significantly reduced.
Feasibility study of the proposal was conducted by the methods of water tank test, sea trial and computational fluid dynamics. In a towing sea trial, the turbine output the design power though it was not continuous due to a failure of control system. Unfortunately, its mooring test was unsuccessful for the insufficient current speed of the site. However, the attempt provided know-hows of the remote control and measurement of the floating turbine system.

Academic Significance and Societal Importance of the Research Achievements

潮流タービンは、流れが速く漁業に不向きな場所に設置され、風車よりも小型で大出力の装置となる。また潮流の変化は規則的であるため、送電会社が接続拒否の理由とする不規則な出力変動を含まないため系統接続が容易である。
本研究は、この種の装置の経済性を飛躍的に高めるため、装置を単純化し、電気機械部を防水措置の要らない水面上に配置する、流れに応じて傾く事を許容して高コストな支持構造を減らす事を提案し、その実現可能性を実験と数値シミュレーションにより確認した。
これらは、海洋再生可能エネルギー利用の経済性を高める事で社会に貢献する。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (8 results)

All 2018 2017 2016

All Presentation (8 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Numerical analysis on the effects of arm on the straight blade of a vertical axis wind turbine2018

    • Author(s)
      Naoki Horita
    • Organizer
      Grand Renewable Energy 2018 Conference and Exhibition, Yokohama, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Towing experiment of the flexibly supported vertical axis tidal current turbine2018

    • Author(s)
      Hiromichi Akimoto
    • Organizer
      Grand Renewable Energy 2018 Conference and Exhibition, Yokohama, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 直線翼垂直軸風車のブレードとアームの圧力分布に関する数値解析2018

    • Author(s)
      堀田直希
    • Organizer
      日本機械学会年次大会、関西大学
    • Related Report
      2018 Annual Research Report
  • [Presentation] 直線翼垂直軸風車の異なる断面形状の水平アームに働く流体力分布とその翼への影響に関する数値解析2018

    • Author(s)
      堀田直希
    • Organizer
      第40回風力エネルギー利用シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 傾斜を許容した垂直軸型潮流タービンの性能予測2017

    • Author(s)
      山下まり子, 秋元博路
    • Organizer
      日本船舶海洋工学会春季講演会
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2017-05-23
    • Related Report
      2016 Annual Research Report
  • [Presentation] 傾斜を許容した垂直軸型潮流タービンの性能予測2017

    • Author(s)
      秋元博路
    • Organizer
      日本船舶海洋工学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 垂直軸風車のアーム抵抗に関する数値解析2017

    • Author(s)
      原豊
    • Organizer
      日本機械学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Prediction of the Flow around a Floating Axis Marine Current Turbine2016

    • Author(s)
      Hiromichi Akimoto, Kazuhiro Iijima, Yutaka Hara
    • Organizer
      Techno-Ocean 2016
    • Place of Presentation
      Kobe Convention Center
    • Year and Date
      2016-10-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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