Effect of combustion characteristics of blended fuels on lean limit in SI engine
SI エンジンにおける混合燃料の燃焼特性とリーン限界の関係性に関する検討
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20214813
- Paper/Info type
- Symposium Text
- Pages
- 1-6(Total 6 p)
- Date of publication
- Dec 2021
- Publisher
- JSAE & JSME
- Language
- Japanese
Detailed Information
| Author(J) | 1) 細田 大雅, 2) 寺井 颯輝, 3) 田島 陽紀, 4) 西野 浩司, 5) 岡田 力也, 6) 長島 朋来, 7) 富所 拓哉, 8) 横森 剛 |
|---|---|
| Author(E) | 1) Taiga Hosoda, 2) Soki Terai, 3) Haruki Tajima, 4) Koji Nishino, 5) Rikiya Okada, 6) Tomoki Nagashima, 7) Takuya Tomidokoro, 8) Takeshi Yokomori |
| Affiliation(J) | 1) 慶應義塾大学, 2) 慶應義塾大学, 3) 慶應義塾大学, 4) 慶應義塾大学大学院, 5) 慶應義塾大学大学院, 6) 慶應義塾大学大学院, 7) 慶應義塾大学, 8) 慶應義塾大学 |
| Affiliation(E) | 1) Keio University, 2) Keio University, 3) Keio University, 4) Graduate School of Teikyo University, 5) Graduate School of Teikyo University, 6) Graduate School of Teikyo University, 7) Keio University, 8) Keio University |
| Abstract(J) | 本研究では，燃料組成の異なる各種燃料がエンジン特性，特にリーン限界にどのような影響を与えるについて検討を行った．対象燃料は，シクロペンタン，フラン，ニトロメタンをそれぞれハイオクガソリンサロゲート燃料に混合したしたものを使用した．エンジン筒内圧のサイクル毎のデータに基づく燃焼期間，詳細化学反応計算による着火遅れ時間や層流燃焼速度等の検討から，燃料の燃焼特性とリーン限界の関係性について検討した． Translation |
| Abstract(E) | Because of recent environmental problems, there is a demand for improving the thermal efficiency of automobiles. Lean-burn engines are one method for improving thermal efficiency. The combustion characteristics such as flame speed and ignition delay time can be major factors determining the lean limit. The purpose of this research was to understand how the combustion characteristics affect the lean limit in an ultra-lean burn SI engine. The fuels used were mixtures of cyclopentane, furan, and nitromethane with high octane gasoline surrogate fuel. The relationship between the combustion characteristics of those fuels and the lean limit was examined from the results of the combustion duration based on the data of the engine in-cylinder pressure for each cycle and the ignition delay and the laminar flame speed by detailed chemical reaction calculation. |
