지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 134 - 138 (5page)
이용수
초록· 키워드
오류제보하기
Increasing oil price and demand for improvement of fuel economy led to active research on DISI engine for advanced gasoline engine technology. Even though fuel consumption of DISI engine is lower, DISI engine encounters problems such as spray impingement and non-homogeneity of air-fuel mixture due to its fuel injection mechanism. These problems participate in increase of engine out UHC and PM emission especially for cold start condition. To reduce the engine out UHC and PM emission, how in-cylinder phenomena such as spray behavior, homogeneity of air-fuel mixture, location of fuel film formation, and combustion characteristics are altered according to the engine operating conditions must be studied beforehand. To investigate the in-cylinder phenomena, direct visualization technique is utilized using optical engines. In most of the research, the optical engines have optical windows which allow full optical access into the cylinder so that in-cylinder phenomena can be fully visualized.
Therefore, in this research, optical engine which is fully optically accessible to the combustion chamber was developed in order to fully visualize in-cylinder phenomena. Using this optical engine, spray and combustion characteristics were observed. The experimental results show that full spray injection sequence including targeting of the spray, and combustion characteristics such as flame propagation sequence can be visualized.
Therefore, in this research, optical engine which is fully optically accessible to the combustion chamber was developed in order to fully visualize in-cylinder phenomena. Using this optical engine, spray and combustion characteristics were observed. The experimental results show that full spray injection sequence including targeting of the spray, and combustion characteristics such as flame propagation sequence can be visualized.
목차
Abstract
1. 서론
2. 실험 장비 및 실험 조건
3. 실험 결과
4. 결론
References
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UCI(KEPA) : I410-ECN-0101-2014-556-000417487