Publications


Title오희창, 이민석, 배충식, "성층희박연소 운전조건에서 분사압과 분사시기에 따른 분무유도식 직접분사 가솔린엔진의 연소특성", 2011 대한기계학회 추계학술대회 강연 및 논문 초록집 , vol,1 pp3552-3557 , 2011.11

오희창, 이민석, 배충식, “성층희박연소 운전조건에서 분사압과 분사시기에 따른 분무유도식 직접분사 가솔린엔진의 연소특성”, 2011 대한기계학회 추계학술대회 강연 및 논문 초록집 , vol,1 pp3552-3557 , 2011.11

Abstract

In this study, single cylinder engine experiment was carried out to investigate combustion characteristics spray guided direct injection spark ignition engine. In the result of engine experiment , it was shown that flammable window of injection timing was existed. The combustion efficiency increased with retarding injection timing, reaching a peak value, subsequent to decrease again. These results were likely due to the effect of ambient pressure on stratified-premixed mixture preparation. 150 bar injection pressure condition and retarded injection timing from the best combustion efficiency injection timing showed the highest IMEP value due to the advanced combustion phase of the maximum combustion efficiency condition. HC emission showed same trend of combustion efficiency, and smoke emission was increased as injection timing was retarded due to the increased locally rich area in the high ambient pressure. NOx emission showed decreasing trend as injection timing was retarded. This is likely due to the maximum in-cylinder temperature was decreased with retarded combustion phase.

Previous이민석, 황준식, 김동훈, 한상욱, 배충식, 홍재웅, 윤수환, 신상연, “실린더 헤드 워터 재킷 표면 조건이 침식에 미치는 영향”, 2011 대한기계학회 추계학술대회논문집, vol,1 pp96-101, 2011. 11.
Next김기현, 김동훈, 정용진, 배충식, “가솔린과 디젤을 연료로 적용한 대형 디젤 엔진에서 분사기 형상이 연소 및 배기 배출물에 미치는 영향”, 2011 한국자동차공학회 정기학술대회 및 전시회, vol.1, pp247-255, 2011. 10.
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