Domestic Journal


Title박세익, 국상훈, 배충식, 김장헌, “디젤 예혼합 압축착화 엔진에서 배기가스 재순환과 과급의 영향,” 한국자동차공학회 논문집, vol. 14, No. 5, pp58-64, 2006. 9.

박세익, 국상훈, 배충식, 김장헌, “디젤 예혼합 압축착화 엔진에서 배기가스 재순환과 과급의 영향,” 한국자동차공학회 논문집, vol. 14, No. 5, pp58-64, 2006. 9.

Abstract

Homogeneous charge compression ignition(HCCI) combustion is an advanced technique for reducing the hazardous nitrogen oxide(NOx) and particulate matter(PM) in a diesel engine. NOx could be reduced by achieving lean homogeneous mixture resulting in combustion temperature. PM could be also reduced by eliminating fuel-rich zones which exist in conventional diesel combustion. However previous researches have reported that power-output of HCCI engine is limited by the high intensive knock and misfiring. In an attempt to extend the upper load limit for HCCI operation , supercharging in combination with Exhaust Gas Recirculation(EGR) has been applied: supercharging to increase the power density and EGR to control the combustion phase.The test was performed in a single cylinder engine operated at 1200 rpm. Boost pressures of 1.1 and 1.2 bar were applied. High EGR rates up to 45% were supplied. Most of fuel was injected at early timing to make homogeneous mixture. Small amount of fuel injection was followed near TDC to assist ignition. Results showed increasing boost pressure resulted in much higher power-output. Optimal EGR rate influenced by longer ignition delay and charge dilution simultaneously was observed.

Previous염기태, 장진영, 배충식. “LPG 예혼합 압축 착화 엔진의 배기가스 및 연소 특성”, 한국 자동차 공학회 자동차공학회 논문집, vol. 14, No. 4, pp149-156, 2006. 7.
Next문석수, Essam Abo-Serie, 최재준, 배충식, “고압 스월분무 내부의 압력분포 및 유동특성에 대한 연구”, 한국액체미립화학회지, vol. 11, No. 3, pp168-175, 2006. 9.
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