Correlation between mixture condition and combustion processes in a dual fuel CI engine and the development of optimization strategy employing fuel spray

• Project/Area Number: 26820066
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thermal engineering
• Research Institution: Kanazawa Institute of Technology
• Principal Investigator: Kobashi Yoshimitsu 金沢工業大学, 工学部, 講師 (80469072)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 圧縮着火 / オクタン価 / 二燃料 / 成層混合気 / 圧縮着火機関 / 燃料 / 着火 / 燃焼

Outline of Final Research Achievements

An experimental and numerical research was performed in order to achieve super clean high-efficiency compression ignition combustion which utilized less reactive fuel as a main fuel and more reactive fuel as a source of ignition.
This study changed the octane number of less reactive fuel and the injection condition of more reactive fuel. The effects of the variables were examined and the detailed mechanism was clarified by the combination of a real engine test, a combustion visualization in a rapid compression and expansion machine and an theoritical analysis using a detailed chemical kinetic model.

Research Products

• [Journal Article] ガソリン系燃料のオクタン価が二燃料成層自着火の着火と燃焼過程に及ぼす影響 (2016)
  • Author(s): 武藤涼，髙木圭一朗，横川和弘，小橋好充，加藤聰
  • Journal Title: 自動車技術会論文集 Volume: 47 Pages: 299-305
  • NAID: 130006321521
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Premixed Fuel Effect on Ignition and Combustion of Dual Fuel Compression Ignition Engine (2015)
  • Author(s): Yoshimitsu Kobashi, Ryo Muto and Satoshi Kato
  • Journal Title: SAE Technical Paper Volume: No.2015-01-1789 Pages: 1-15
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 成層自着火燃焼における混合気の当量比分布と熱発生率の関係 (2015)
  • Author(s): 小橋好充，武藤涼，松本彬良，髙木圭一朗，加藤聰，藤野友基，川北晋一郎，近藤和吉，西島義明
  • Organizer: 日本機械学会2015年度年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2015-09-13
• [Presentation] ガソリン系燃料のオクタン価が二燃料成層自着火の着火・燃焼過程に及ぼす影響 (2015)
  • Author(s): 武藤涼，髙木圭一朗，横川和弘，小橋好充，加藤聰
  • Organizer: 自動車技術会春季学術講演会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2015-05-20
• [Remarks] 金沢工業大学 加藤・小橋研究室
  • URL: http://www2.kanazawa-it.ac.jp/motore/
• [Remarks] 加藤・小橋研究室のホームページ
  • URL: http://www2.kanazawa-it.ac.jp/motore/