Publications


Title김기현, 김동훈, 정용진, 배충식, “가솔린과 디젤을 연료로 적용한 대형 디젤엔진에서 저부하 영역 운전 특성 분석”, 제 43회 KOSCO Symposium 논문집, vol.1, pp257-263, 2011. 12.

김기현, 김동훈, 정용진, 배충식, “가솔린과 디젤을 연료로 적용한 대형 디젤엔진에서 저부하 영역 운전 특성 분석”, 제 43회 KOSCO Symposium 논문집, vol.1, pp257-263, 2011. 12.

Abstract

Experimental study was performed to investigate operating characteristics of direct injection compression ignition combustion fueled with gasoline and diesel at low load in a single cylinder heavy duty diesel engine. Engine was operated at two load (2 bar IMEP(indicated mean effective pressure), 4.5 bar IMEP) conditions over wide injection timing range with different intake pressure and injection pressure. At near idle operation, gasoline was not available to operate under naturally aspirated condition. With high boosting pressure, it is possible to operate with low COVIMEP(coefficient of variation of IMEP). Gasoline combustion shows longer ignition delay and retarded combustion phase than those of diesel. Overall trend of exhaust emission is that gasoline combustion results higher HC(hydrocarbon), CO(carbon monoxide), NOx(nitrogen oxide) emission and less soot emission than diesel combustion. Based on difference of properties between two fuel, experimental results were discussed in this research.

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