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수치해석을 이용한 DME HCCI 엔진의 열적성층화 효과에 대한 메커니즘 연구
오충환(Chunghwan Oh),나랑후 잠스란(Narankhuu Jamsran),임옥택(Ockteack Lim),정재훈(Jaehoon Jung) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Homogeneous charge compression ignition(HCCI) engine has been attracted as the potential engine combustion process which has high efficiency and low-emission. However, there is one task to be solved. In the high-load range, the engine operating range is limited because of the knocking. To solve this problem, some studies to reduce the cause of rapid combustion have being progressed. In this study, some numerical analyses were conducted to analyze mechanisms on the thermal stratification effects. Under the condition of the 1 degree, the reaction timing of low-temperature oxidation and high-temperature oxidation according to variation of initial temperature was considered. Also, when the width of thermal stratification was varied, it considered that the change of lowtemperature oxidation and high-temperature oxidation.
수치해석을 이용한 DME HCCI 엔진의 열적성층화 효과에 대한 메커니즘 연구
오충환(Chunghwan Oh),나랑후 잠스란(Narankhuu Jamsran),임옥택(Ockteack Lim) 한국자동차공학회 2012 한국자동차공학회 지부 학술대회 논문집 Vol.2012 No.11
Homegeneous charge compression igrition(HCCI) engine has been attracted as the potential engine combustion process which has high efficiency and low-emission. However, there is one task to be solved. In the high-load range, the engine operating range is limited because of the knocking. To solve this problem, some studies to reduce the cause of rapid combustion have being progressed. In this study, some numerical analyses were conducted to analyze mechanisms on the thermal stratification effects. Under the condition of the I degree, the reaction timing of low-tempenture oxidation and high-temperature oxidation according to variation of initial temperature was considered. Also, when the width of thermal stratification was varied, it considered that the change of low-temperature oxidation and high-temperature oxidation.