Abstract
Abstract The purpose of the research is to investigate of diesel spray combustion for simultaneously reduction way of NOx and PM．The diesel injection were done into intermediates that are generated by very lean DME HCCI combustion using a RCM. The concentration of intermediate could not be directly measured, so we estimated it by CHEMKIN calculation. Two dimensional spontaneous luminescence images which are created by chemical species reaction at low temperature reaction (LTR) and high temperature reaction (HTR) are captured by using a framing streak camera. Also，combustion events were observed by high-speed direct photography. The ignition and combustion events were analyzed by pressure profiles and the KL values and flame temperatures were analyzed by the two-color method. 기호설명 HCCI : 예혼합압축자기착(Homogeneous Charge C ompression Ignition) HTR : 고온산화반응 (High Temperature Reaction) LTR : 저온산화반응 (Low Temperature Reaction) t LTR : 저온산화반응 시작시각 (ms) t HTR : 고온산화반응 시작시각 (ms) T LTR : 저온산화반응 시작온도 (K) T
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