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자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 B권 대한기계학회논문집 B권 제31권 제6호
발행연도
2007.6
수록면
514 - 521 (8page)

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This study focused on the effects of the CO₂ gas concentration in fresh charge and induction air temperature on the combustion characteristics of homogeneous charge compression ignition with dimethyl ether (DME) fuel, which was injected at the intake port. Because of adding CO₂ in fresh charge, start of auto-ignition was retarded and burn duration became longer. Indicated combustion efficiency and exhaust gas emission were found to be worse due to the incomplete combustion. Partial burn was observed at the high concentration of CO₂ in fresh charge with low temperature of induction air. However, indicated thermal efficiency was improved due to increased expansion work by late ignition and prolonged burn duration. Start of auto-ignition timing was advanced with negligible change of burn duration, as induction air temperature increased. Burn duration was mainly affected by oxygen mole concentration in induction mixture. Burn duration was increased, as oxygen mole concentration was decreased.

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Abstract
1. 서론
2. 실험방법 및 장치
3. 실험결과
4. 결론
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