지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.11
- 수록면
- 410 - 416 (7page)
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초록· 키워드
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Recently, The DME is drawing attention as upcoming clean alternative fuel of the diesel. It is synthetic product that is produced through dehydration of methanol or a direct synthesis from syngas. And it is able to save fossil fuel and reduce pollutants of emission such as PM. To apply the DME with diesel engine, DME spray 1.4~1.6 times more fuel volume must be injected into the engine to reach the diesel equivalent. Because low heating value of DME is lower than that of diesel fuel. There are three different way to obtain more DME fuel roughly. One is to enlarge nozzle hole size, another is to lengthen injection duration and the other is to increase the fuel pressure. However, to increase the fuel pressure of DME is difficult because of low viscosity and compressibility. The aim of this study is to compare the DME spray and the diesel spray of equivalent performance in energy. The spray pattern simulation is compared to visualization experiment of spray. As a result, experiments and numerical analysis of spray shows that the spray penetration length increases in increased fuel pressure and in decreased ambient pressure. The spray penetration length of DME is longer 12% than diesel’s. And the distributions of DME in cylinder tend to wide comparison with the diesel by higher the evaporation.
목차
Abstract
1. 서론
2. 가시화 실험과 분무 형상 해석
3. 결과 및 고찰
4. 결론
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References
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UCI(KEPA) : I410-ECN-0101-2013-556-001412822