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Modeling of combustion oscillation using acoustic impedance of as acoustic boundary conditions

Research Project

Project/Area Number 19K14919
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 20010:Mechanics and mechatronics-related
Research InstitutionWaseda University (2020-2021)
Tokyo University of Agriculture and Technology (2019)

Principal Investigator

Uemichi Akane  早稲田大学, 理工学術院, 准教授(テニュアトラック) (10734155)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords燃焼振動 / 音響インピーダンス / 発振周波数 / 音響ネットワークモデル / 共鳴周波数 / 音響エネルギー / 圧力損失 / 振動モード / 音響的境界条件 / 熱音響 / 自励振動
Outline of Research at the Start

火力発電用ガスタービンの燃料として水素を活用する技術開発が進められている.しかしながら,水素がガスタービンの燃焼状態に与える影響はまだ十分に調査されていない.申請者は,実験から天然ガスと水素の混合燃料を用いた場合,強い圧力変動を伴う燃焼振動の発振周波数の変化することを発見した.そこで,燃焼特性の変化が音響的境界条件に影響をもたらしているという仮説に基づき,本研究ではこの現象を本質的に理解するために,ガスタービン燃焼器内の複雑な燃焼現象をリダクションしたモデルを用いて燃焼特性を表現し,このときの音響的境界条件の変化を組み込んだ燃焼振動現象を表現するモデルを構築する.

Outline of Final Research Achievements

The oscillating frequencies of combustion oscillations generated in a gas turbine fueled by a hydrogen-containing mixture have been studied, focusing on its change compared to the case of a natural gas-fired gas turbine combustor. This study attempted to develop a low-dimensional model that can reproduce more complicated combustion oscillation phenomena with appropriate model reduction of complicated combustion phenomena. An acoustic network model was developed for the piping elements upstream of the combustor by applying acoustic impedance as the acoustic boundary conditions, and the oscillating frequency was calculated. The calculated values contain comparable values of the measured results. It was also confirmed that the combustion characteristics of hydrogen have a significant effect on the presence or absence of combustion oscillation.

Academic Significance and Societal Importance of the Research Achievements

二酸化炭素を排出しないカーボンニュートラル燃料として,水素をガスタービンの燃料に利用する技術開発が進められている.とりわけ,機器の破損を引き起こし発電プラントの連続稼働を妨げる燃焼振動には回避あるいは抑制しなければならない.しかしながら,水素は従来使われてきた天然ガスなどと燃焼特性が大きく異なることから,燃焼振動を防ぐためには十分に調査する必要がある.本研究では,低負荷かつ物理に基づいたモデルを構築し,燃焼振動の発生予測に貢献することを目指している.本研究からは,燃焼器より上流の配管要素を考慮したモデル構築が重要であることが明らかとなり,プラント設計において重大な示唆を与えるものと考える.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Examination of Resonant Frequencies Generated by Combustion Oscillation in a Combustor Fueled by a Hydrogen-Natural Gas Mixture and an Upstream Pipe2021

    • Author(s)
      Uemichi Akane、Lyu Yifan、Kusaka Jin、Kaneko Shigehiko
    • Journal Title

      Proceedings of the ASME 2021 International Mechanical Engineering Congress and Exposition. Volume 1: Acoustics, Vibration, and Phononics

      Volume: 1

    • DOI

      10.1115/imece2021-68521

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oscillating Frequencies Generated by Combustion Oscillation in a Combustor Tube Fueled by Natural Gas and a Hydrogen Mixture2021

    • Author(s)
      Uemichi Akane、Mitani Kan、Yamasaki Yudai、Kaneko Shigehiko
    • Journal Title

      Journal of Pressure Vessel Technology

      Volume: 144 Issue: 4

    • DOI

      10.1115/1.4052308

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Examination of Oscillating Frequencies Generated by Combustion Oscillation Considering Temperature Distribution in a Combustor Tube Fueled by Natural Gas and Hydrogen Mixture2020

    • Author(s)
      Uemichi Akane、Mitani Kan、Yamasaki Yudai、Kaneko Shigehiko
    • Journal Title

      Proceedings of ASME Pressure Vessel and Piping Conference 2020

      Volume: 4

    • DOI

      10.1115/pvp2020-21231

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 水素混焼焚きガスタービン燃焼器で発生する燃焼振動の共鳴周波数の検討2021

    • Author(s)
      上道茜,呂逸凡,草鹿仁,金子成彦
    • Organizer
      日本機械学会2021年度年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 水素混焼ガスタービン燃焼器で発生する燃焼振動の研究2021

    • Author(s)
      上道茜
    • Organizer
      日本機械学会関西支部第22回秋季技術交流フォーラム、16-B室:機械の音と振動研究懇話会「流体関連振動騒音の事例紹介と最新の研究動向」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Examination of Resonant Frequencies Generated by Combustion Oscillation in a Combustor Fueled by a Hydrogen-Natural Gas Mixture and an Upstream Pipe2021

    • Author(s)
      Akane Uemichi, Yifan Lyu, Jin Kusaka, Shigehiko Kaneko
    • Organizer
      ASME. IMECE2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水素混焼ガスタービンで発生する燃焼振動の発振周波数の計算2021

    • Author(s)
      今井亮汰,金子成彦,上道茜
    • Organizer
      日本機械学会関東支部第28期総会・講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Examination of oscillating frequencies generated by combustion oscillation considering temperature distribution in a combustor tube fueled by natural gas and hydrogen mixture2020

    • Author(s)
      Akane Uemichi
    • Organizer
      Society of Mechanical Engineers, Pressure Vessels and Piping Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 燃焼器を模した管の管内温度分布の変化が音響インピーダンスに与える影響2020

    • Author(s)
      樋渡淳,上道茜,秋澤淳
    • Organizer
      日本機械学会 関東支部 第26期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Examination of Oscillating Frequency in Combustion Oscillation Using Acoustic Impedance as Acoustic Boundary Conditions2019

    • Author(s)
      Akane Uemichi, Kan Mitani, Shigehiko Kaneko
    • Organizer
      IUTAM Symposium on Fluid-structure interaction; in honour of Michael Paidoussis
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 吸排気系を含む燃焼器を模した管の管内温度分布が音響的境界条件に与える影響の把握2019

    • Author(s)
      秋野広祐,上道茜,山﨑由大,金子成彦
    • Organizer
      日本機械学会年次大会 2019
    • Related Report
      2019 Research-status Report
  • [Presentation] 燃焼器内軸方向温度分布を考慮した燃焼振動共鳴周波数の検討2019

    • Author(s)
      三谷冠,上道茜,山﨑由大,金子成彦
    • Organizer
      日本機械学会年次大会 2019
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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