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자료유형
학술대회자료
저자정보
저널정보
한국동력기계공학회 한국동력기계공학회 학술대회 논문집 2006年度 春季學術大會 論文集
발행연도
2006.6
수록면
147 - 152 (6page)

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In a conventional and lean operating engine, the state of mixture is very important in the combustion and emission characteristics. Lean operation is known to decrease the formation while maintaining a good fuel economy, but the unstable operation due to misfire and erratic combustion prevents engines from being operated at very lean mixtures, so both combustion rates and exhaust emission formation need to be satisfied comparablely. In this study, it is designed and experimented the modified engine, and analyzed the combustion and exhaust emission according to the change of engine speed and with adding ozone. The conclusions were drawn out and enumerated as a following. 1. At the experimental result of automobile diesel engine, it has been verified that the formation of particulate matter(PM) gas is able to be lower with the addition of optimum quautities of ozone. 2. Carbon monoxide(CO) was formed by the lack of oxygen and the thermal dissociation in the combustion process. Therefore, with the change of swirl valve's position and addition of oxygen and ozone, CO formation was decreased by the increasing of excess O2, and increased by the combustion gas temperature higher. As a result of the two effects, CO formation was decreased in this study. 3. Hydrocarbon(HC) was formed by the lack of 02, and the flow of mixture in cylinder. According to opening of the swirl valve and adding the oxygen and ozone, hydrocarbon gas was decreased by respectively 20%, 9%, and 27.5%. 4. Nitric oxides(NO<SUB>x</SUB>) was strongly affected by the combustion gas temperature. As a result of respectively experimental conditions, NO<SUB>x</SUB> formation was increased about 20% due to be the higher combustion gas temperature.

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Abstract
1. 서론
2. 실험장치 및 방법
3. 결과 및 고찰
4. 결론
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