지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.5
- 수록면
- 36 - 46 (11page)
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초록· 키워드
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This study is to investigate spray, combustion and emission characteristics of mixtures of diesel and soy-based biodiesel in a CI engine. A surrogate mechanism is developed by combining the skeletal mechanisms of MB and n-heptane. Thermophysical properties are validated against measured tip penetrations and SMD’s of nonreacting sprays. Biodiesel shows spray characteristics of larger SMD’s, lower volatility and slower mixing with ambient air due to larger viscosity and surface tension. Engine simulation is performed by the CMC-ISR model to resolve coupling between chemistry and turbulence. Ignition occurs earlier, while flame propagates slower with slower evaporation and mixing for biodiesel. Results are in good agreement for pressure traces, NO<SUB>x</SUB> and trends of variation of CO and PM in arange of operating conditions. NO<SUB>x</SUB> decreased for BD＜60% and increased for BD＞60% with increasing biodiesel fraction, while PM and CO decreased due to the oxygen content in biodiesel in the test engine.
목차
Abstract
1. 서론
2. 수치적 모델링
3. 정적 미연소실에서의 분무 특성
4. CMC-ISR 모델의 엔진 모사
4. 결론
References
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UCI(KEPA) : I410-ECN-0101-2014-556-001323057