Publications


Title오희창, 정진영, 배충식, “직접 화염 가시화를 통한 직접분사식 가솔린 엔진의 성층연소 과정 및 입자상 물질 배출특성에 대한 연구”, 2012 한국자동차 공학회 학술대회 및 전시회, 2012. 11

오희창, 정진영, 배충식, “직접 화염 가시화를 통한 직접분사식 가솔린 엔진의 성층연소 과정 및 입자상 물질 배출특성에 대한 연구”, 2012 한국자동차 공학회 학술대회 및 전시회, 2012. 11

Abstract

An experimental study was carried out to investigate the combustion process and PM emission characteristics in a spray guided direct injection spark ignition (DISI) engine under lean stratified operation. In-cylinder pressure analysis, exhaust emissions measurement, and visualization of the spray and combustion were applied. Combustion process in a stratified DISI engine was found to be followed 3 major process; the premixed combustion which shows faster combustion speed and high intensity of heat release rate, mixing controlled combustion showing high intensity of luminous flame and lean premixed combustion of which combustion speed is low with smaller intensity of heat release rate. Luminous sooting flame during the combustion process is identified that it represents incylinder formation of PM. PM emission was verified that it is originated from the locally rich area in the stratified mixture which was not burned during the main combustion propagating. Result of incylinder spray visualization and PLIF mixture visualization in a constant volume chamber supported this explanation.

Previous김동훈, 김기현, “디젤 분무의 증발/비증발 특성 비교”, 2012 한국액체미립화학회 학술 강연대회, 2012. 9.
Next김동훈, 황준식, 한상욱, 배충식, 윤수환, 홍재웅, “워터 재킷 표면의 침식 및 부식에 대한 수치적 접근”, 2012 한국자동차 공학회 학술대회 및 전시회, 2012, 11
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