A Study of Combustion Mechanism of Ethanol Premixed Flame at High Pressure and High Temperature

• Project/Area Number: 19760129
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Thermal engineering
• Research Institution: Tohoku University
• Principal Investigator: OGAMI Yasuhiro Tohoku University, 流体科学研究所, 助教 (00375122)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,680,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥480,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2007: ¥1,600,000 (Direct Cost: ¥1,600,000)
• Keywords: 熱工学 / 流体工学 / 環境技術 / 燃焼工学

Research Abstract

高温・高圧下においてエタノール/空気予混合火炎の燃焼試験を行ったが,新たに開発した二流体噴霧装置を利用した蒸気発生器を用いることで,広い条件下での火炎の安定化に成功した.また,熱流体汎用コードFLUENTを用い二次元エタノール予混合火炎の数値計算を行った.反応モデルには簡略化反応機構を用いたが,準定常化学種の最適化を行うことで安定性の高い簡略化反応機構を構築することに成功し,計算時間も詳細反応機構を利用した場合と比較し1/4程度まで減少した.

Research Products

• [Journal Article] Microgravity experiments of single droplet combustion in oscillatory flow at elevated pressure (2009)
  • Author(s): Yasuhiro Ogami
  • Journal Title: Proceedings of the Combustion Institute 32 Pages: 2005-2012
  • Peer Reviewed
• [Journal Article] Dilution effects of superheated water vapor on turbulent premixed flames at high pressure and high temperature (2009)
  • Author(s): Hideaki Kobayashi
  • Journal Title: Proceedings of the Combustion Institute 32 Pages: 2607-2614
  • Peer Reviewed
• [Journal Article] Effects of CO2 Dilution on Turbulent Premixed Flames at High Pressure and High Temperature (2007)
  • Author(s): Hideaki Kobayashi
  • Journal Title: Proceedings of the Combustion Institute 31 Pages: 1451-1458
  • Peer Reviewed
• [Presentation] Microgravity experiments of single droplet combustion in oscillatory flow at elevated nressure (2008)
  • Author(s): Yasuhiro Ogami
  • Organizer: 32nd international Symposium on Combustion
  • Place of Presentation: カナダ(モントリオール)
  • Year and Date: 2008-08-07
• [Presentation] Effects of Flame Stretch and Heat Loss on Local Burning Velocities for Two-dimensional Bunsen Flames (2007)
  • Author(s): Yasuhiro Ogami, Hisashi Nakamura and Hideaki Kobayashi
  • Organizer: The Seventh International Symposium on Advanced Fluid Information
  • Place of Presentation: 仙台
  • Year and Date: 2007-12-15
• [Presentation] エタノール簡略化反応機構の多次元数値解析への適用に関する研究 (2007)
  • Author(s): 奥山昌紀,川瀬雅大,大上泰寛,中村寿,小林秀昭
  • Organizer: 第45回燃焼シンポジウム
  • Place of Presentation: 仙台
  • Year and Date: 2007-12-06
• [Presentation] PTVおよびPLIF同時計測によるしわ状層流火炎の挙動に関する研究 (2007)
  • Author(s): 橋本和典,大上泰寛,小林秀昭
  • Organizer: 第46回燃焼シンポジウム
  • Place of Presentation: 京都
  • Year and Date: 2007-12-05
• [Presentation] Reduced Kinetic Mechanism of Ethanol for Multi-dimensional Combustion Analysis (2007)
  • Author(s): Masaki Okuyama, Masao Kawase, Yasuhiro Ogami, Hisashi Nakamura, Hideaki Kobayashi
  • Organizer: Fourth International Conference on Flow Dynamics
  • Place of Presentation: 仙台
  • Year and Date: 2007-09-26
• [Presentation] Experimental and Numerical Studies of Local Burning Velocities for Two-dimensional Bunsen Flames (2007)
  • Author(s): Yasuhiro Ogami
  • Organizer: The 6th Asia-Pacific Conference on Combustion
  • Place of Presentation: 愛知県名古屋市
  • Year and Date: 2007-05-21