Publications


Title오희창, 이민석, 박정서, 배충식, “성층희박연소 운전조건에서 다단분사에 따른 분무유도식 직접분사 가솔린엔진의 연소특성,” 2011 한국자동차공학회 부문종합 학술대회, pp54-62, 2011. 5.

오희창, 이민석, 박정서, 배충식, “성층희박연소 운전조건에서 다단분사에 따른 분무유도식 직접분사 가솔린엔진의 연소특성,” 2011 한국자동차공학회 부문종합 학술대회, pp54-62, 2011. 5.

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.

Previous한상욱, 김기현, 배충식, “운전 조건에 따른 저온 디젤 연소의 모드 전환 특성,” 대한기계학회 열공학부문 춘계학술대회, pp211-216, 2011, 5.
Next김재헌, 배충식, 김강출, “소형 리니어 엔진에서 LPG와 수소 연료에 따른 운전 특성 비교,” 2011 한국자동차공학회 부문종합 학술대회, pp221 – 226, 2011. 5.
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