Publications


Title박영수, 배충식, “HP/LP EGR 공급 비율 변화에 따른 디젤 엔진 연소 특성에 관한 연구”, 2013 한국자동차공학회 부문종합 학술대회, 2013. 5.

The effect of HP/LP EGR portion on diesel engine combustion and emissions characteristics was investigated in a 2.2 L passenger diesel engine. The portion of HP/LP EGR was varied from 0 to 1 while fixing the mass flow rate of fresh air. The intake manifold temperature was lowered with the increasing of the portion of LP EGR, which led to the retardation of heat release by pilot injection. The lowered intake manifold temperature also resulted in low NOx emissions due to decreased in-cylinder temperature and prolonged ignition delay, however, CO emission showed opposite trend to NOx emissions. BSFC was decreased as the portion of LP EGR increased due to lowered exhaust manifold pressure by wider open of turbocharger vane.

Previous황준식, 정용진, 배충식, “폐식용유 바이오디젤을 이용한 압축착화 엔진의 저부하 영역에서 연료의 분사 압력과 분사 시기가 연소 및 배기특성에 미치는 영향; Effect of Fuel Injection Pressure and Timing on the Combustio and Emission Characteristics in a Compression Ignition Engine under Low Load Condition Fueled with Waste Cooking Oil Boidiesel”, 제 45회 KOSCO Symposium, 2012. 11.
Next정진영, 오희창, 배충식, “다운사이징 GDI엔진에서 TiAl 터빈휠 터보차저의 적용에 따른 성능 특성”, 2013 한국자동차공학회 부문종합 학술대회. 2013. 5.
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