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논문 기본 정보

자료유형
학술대회자료
저자정보
이세준 (울산대학교) 양지웅 (울산대학교) 김상일 (기아자동차) 임옥택 (울산대학교)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2012 한국자동차공학회 부문종합 학술대회
발행연도
2012.5
수록면
384 - 388 (5page)

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To understand DME characteristics including spray penetration length and spray angle at a real engine ambient condition, DME was injected into a high pressure chamber by a piezo injector common rail system. The pre-mixed gas combustion used N₂, O₂, and C₂H₂ was occurred in the high pressure chamber to modify the engine being operated. The piezo injector common rail system was applied to get steady injection pressure and rapid responsibility. Injection pressure was also varied to check a relation with spray characteristics. Using a direct photographing technique with high speed camera, every DME spray was able to be imaged. In the high pressure chamber, when temperature and pressure were increased, the DME spray penetration length was decreased since evaporation effect of DME was risen by high temperature. In addition, DME spray penetration velocity was drop by high pressure condition which was high density of a pre-mixed combustion gas. In contrast, while the temperature and pressure were decreased the penetration length was elongated and penetration velocity was faster relatively. When DME injection pressure was increased, there was no effect of penetration length but penetration velocity was increased while spray angle was enlarged.

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Abstract
1. 서론
2. 실험장치
3. 실험방법
4. 실험결과
5. 결론
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UCI(KEPA) : I410-ECN-0101-2014-556-001323764