Systematic contraction of chain reaction mechanisms and combustion control

• Project/Area Number: 18K03980
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 19020:Thermal engineering-related
• Research Institution: Hiroshima University
• Principal Investigator: Miyoshi Akira 広島大学, 先進理工系科学研究科(工), 教授 (60229903)
• Project Period (FY): 2018-04-01 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 反応機構簡略化 / ランピング / 着火遅れ時間 / 層流火炎伝播速度 / 燃焼詳細反応機構 / 消炎限界火炎伸張 / 燃焼工学 / 火炎伝播速度 / 連鎖分岐反応 / 詳細反応機構 / 簡略化 / 燃焼制御

Outline of Final Research Achievements

In this work, for the purpose of the combustion control, systematic reduction methods for the kinetic models has been investigated. During 1st to 3rd FY, manual lumping methods have been investigated firstly for alkanes and secondary for toluene for which the lumping was found to be inefficient due to the originally small number of intermediates. In the 4th FY, hybrid methods with DRG method etc. has been investigated. In the last FY, the automatic generation rate rules has been reinvestigated for further lumping.

Academic Significance and Societal Importance of the Research Achievements

燃焼の技術開発において，詳細反応機構を用いることは，モデリングに過大な計算機資源を必要とするだけでなく現実的な時間での計算を不可能にする場合も多い．本研究の目的は，燃焼連鎖反応機構の縮約によって，この計算機負荷を低減することであり，得られた成果は，計算機負荷を一定の割合で低減できるレベルのものである．残された課題は，この手法のさらなる汎用化にあると考えられる．

Research Products

• [Journal Article] Chemical Kinetics Study About the Effect of NO₂ Addition on Low Temperature Oxidation and Ignition Delay (Third Report) (2022)
  • Author(s): 葛 晰遥、三好 明、大野 諒平、原田 雄司
  • Journal Title: Transactions of Society of Automotive Engineers of Japan Volume: 53 Issue: 3 Pages: 624-629
  • DOI: 10.11351/jsaeronbun.53.624
  • ISSN: 0287-8321, 1883-0811
  • Peer Reviewed / Open Access
• [Journal Article] Chemical Kinetics Study About the Effect of NO₂ Addition on Low Temperature Oxidation and Ignition Delay (Second Report) (2021)
  • Author(s): 葛 晰遥, 三好 明, 大野 諒平, 原田 雄司,
  • Journal Title: Transactions of Society of Automotive Engineers of Japan Volume: 52 Issue: 2 Pages: 269-274
  • DOI: 10.11351/jsaeronbun.52.269
  • NAID: 130007988039
  • ISSN: 0287-8321, 1883-0811
  • Peer Reviewed / Open Access
• [Journal Article] Investigation on the Potential Prevention of Autoignition by the Control of HO₂ Radical Formation (2020)
  • Author(s): 三好 明
  • Journal Title: Transactions of Society of Automotive Engineers of Japan Volume: 51 Issue: 5 Pages: 849-855
  • DOI: 10.11351/jsaeronbun.51.849
  • NAID: 130007919294
  • ISSN: 0287-8321, 1883-0811
  • Peer Reviewed / Open Access
• [Journal Article] SI Combustion Characteristics of Cyclopentane - Detailed Kinetic Mechanism (2019)
  • Author(s): Akira Miyoshi
  • Journal Title: SAE paper Volume: 2019-01 Pages: 2305-2305
  • DOI: 10.4271/2019-01-2305
  • Peer Reviewed
• [Journal Article] Kinetic Analysis on the Effects of an Octane Improver on Combustion Characteristics (2019)
  • Author(s): 三好 明
  • Journal Title: Transactions of Society of Automotive Engineers of Japan Volume: 50 Issue: 5 Pages: 1284-1287
  • DOI: 10.11351/jsaeronbun.50.1284
  • NAID: 130007711491
  • ISSN: 0287-8321, 1883-0811
  • Peer Reviewed
• [Presentation] 燃料の燃焼特性はどこまで生かせるのか？ (2022)
  • Author(s): 三好 明
  • Organizer: 第60回燃焼シンポジウム・第33回内燃機関シンポジウム合同フォーラム
  • Invited
• [Presentation] 環状アルカンの低温酸化反応の速度則構築 (2022)
  • Author(s): 大谷 貫太, 三好 明, 下栗 大右
  • Organizer: 第60回燃焼シンポジウム
• [Presentation] 炭酸エステル類など含酸素化合物の酸化反応に関する研究 (2022)
  • Author(s): 乙幡 拓希, 下栗 大右, 三好 明
  • Organizer: 第60回燃焼シンポジウム
• [Presentation] 燃料の輸送係数と点火着火特性の関係 (2021)
  • Author(s): 三好 明
  • Organizer: 第59回燃焼シンポジウム
• [Presentation] フランの燃焼反応機構 (2020)
  • Author(s): 三好 明
  • Organizer: 第58回燃焼シンポジウム
• [Presentation] SI燃焼への燃料添加剤の効果 (2019)
  • Author(s): 三好 明
  • Organizer: 第30回内燃機関シンポジウム
• [Presentation] 燃料の火炎伸張消炎特性とSI燃焼特性の関係について (2019)
  • Author(s): 三好 明
  • Organizer: 第57回燃焼シンポジウム
• [Presentation] 環状炭化水素の燃焼特性に関する基礎的検討 (2018)
  • Author(s): 三好明
  • Organizer: 第56回燃焼シンポジウム
• [Presentation] プロパルギルラジカル誘導体からの芳香環形成過程の理論的検討 (2018)
  • Author(s): 村田淳矢・三好明
  • Organizer: 第56回燃焼シンポジウム