이론공연비 압축착화 엔진에서 연소 및 배기특성에 관한 기초실험 연구

Abstract

The present work is an experimental investigation on combustion and exhaust emission characteristics in stoichiometric compression ignition (SCI) engine. The objectives of present study were to apply simulated-EGR to CI engine and to evaluate potential operating range. In order to attain stoichiometric operating condition, the intake air system were modified that a flow rate and the components (i.e. air, N2, and CO2) of intake air were regulated. The heat-release rate (HRR), net indicated mean effective pressure (IMEP), start of combustion (SOC), and combustion duration were derived from in-cylinder pressure data in a test engine, which has 373.33cc displacement volume and 17.8 compression ratio. The exhaust emission characteristics were obtained emission bench and smoke meter on the exhaust line system