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자료유형
학술대회자료
저자정보
김기현 (한국과학기술원) 김동훈 (한국과학기술원) 정용진 (한국과학기술원) 배충식 (한국과학기술원)
저널정보
한국자동차공학회 한국자동차공학회 추계학술대회 및 전시회 2011년 한국자동차공학회 학술대회 및 전시회
발행연도
2011.11
수록면
247 - 255 (9page)

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초록· 키워드

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Experimental study was performed to investigate effects of various injector configurations on combustion and exhaust emissions in a heavy duty diesel engine fueled with gasoline and diesel. Including baseline injector which has 8 holes and 146° injection angle, five kinds of injector with different injection angle and number of nozzle hole were used for the study. Engine was operated at low speed and load conditions. Stable engine operation for gasoline was not achieved with baseline injector under naturally aspirated condition. Engine operation was become stable only when high boosting pressure was applied. However, it was possible to achieve more stable engine operation with injectors of narrow injection angle compared to baseline injector at same intake pressure. Over the whole injection timing range, gasoline combustion shows longer ignition delay and retarded combustion phase than those of diesel. This trend enables to obtain higher power output at early injection timing for gasoline compared to diesel. However, high HC and CO were emitted under these early injection timing range so narrow injection angle injector was used to reduce these emissions by spray targeting technology. Consequently, low load operation using gasoline was realized with lower emission and comparable power output compared to diesel combustion.

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Abstract
1. 서론
2. 실험 장치 및 방법
3. 결과 및 검토
4. 결론
5. 후기
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UCI(KEPA) : I410-ECN-0101-2013-556-001412524