CAI 연소 방법을 이용한 성층 연소를 통한 운전 영역 확대, 연소 및 배기 특성에 관한 실험적 연구An Experimental Study on the Extend of the Operating Region and Emission Characteristics Through the Stratified Combustion Using Controlled Auto-Ignition Method
- Other Titles
- An Experimental Study on the Extend of the Operating Region and Emission Characteristics Through the Stratified Combustion Using Controlled Auto-Ignition Method
- Authors
- 이창희; 이기형; 정해영
- Issue Date
- May-2006
- Publisher
- 대한기계학회
- Keywords
- Key Words : CAI(Controlled Auto-Ignition: 자기착화 조절); Residual EGR(잔류 배기가스); Early Injection(조기분사); Late Injection(후기분사); Stratified Combustion(성층연소)
- Citation
- 대한기계학회논문집 B, v.30, no.5, pp.465 - 471
- Indexed
- KCI
- Journal Title
- 대한기계학회논문집 B
- Volume
- 30
- Number
- 5
- Start Page
- 465
- End Page
- 471
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/45256
- ISSN
- 1226-4881
- Abstract
- Controlled auto-ignition(CAI) combustion, offers the potential to improve fuel economy and reduce emission simultaneously. In this study, CAI-combustion was achieved in a single cylinder gasoline DI engine with modified camshafts in order to restrict the gas exchange process. We investigated the effects of air-fuel ratio, residual EGR rate and injection timing such as early injection and late injection on the attainable CAI combustion region. The effect of injection timings on combustion characteristic such as start of combustion, combustion duration and heat release rate was also investigated. From the result early injection causes the mixture to ignite earlier and burn more quickly due to the exothermic reaction during the recompression and gives rise to good mixing of the fuel/air. On the other hand, late injection extended the operation region more than early injection but the emissions of HC and NOx were more or less increased than early injection.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.