Thermal Efficiency Improvement for a Diesel Engine Achieved by High-Heels Heat Release Rate Profile
High-heels型熱発生率によるディーゼル機関の熱効率改善
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20225212
- Paper/Info type
- Proceedings (Spring)
No.48-22
- Pages
- 1-6(Total 6 p)
- Date of publication
- May 2022
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2022 JSAE Annual Congress (Spring)
Detailed Information
| Author(J) | 1) 渡邉 一雅, 2) 内田 登 |
|---|---|
| Author(E) | 1) Kazumasa Watanabe, 2) Noboru Uchida |
| Affiliation(J) | 1) 新エィシーイー, 2) 新エィシーイー |
| Affiliation(E) | 1) New A.C.E Institute, 2) New A.C.E Institute |
| Abstract(J) | ディーゼル燃焼制御による熱効率最大化を狙い，熱発生率が2段階に漸増するHigh heels型熱発生形状を新たに提案した．本研究では熱発生率形状を制御するためにシングルインジェクタ用可変噴射率システムを構築してエンジン評価を実施し，High heels型熱発生率にて冷却損失低減と熱効率向上を実現した． Translation |
| Abstract(E) | A novel heat release rate profile named ‘High heels’, which is formed by gradually increased heat release rate in two steps to retard the peak at the timing of higher volume-change rate, was proposed as a measure to practically maximize thermal efficiency of diesel combustion in lieu of the ideal thermodynamic cycles. In this study, a newly developed variable injection rate shaping system for a single injector was installed in the tested engine. The results indicated that significant reduction in cooling loss and increase in thermal efficiency were simultaneously achieved with ‘High heels’ like heat release rate profile, as expected. |
