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자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 B권 대한기계학회논문집 B권 제29권 제3호
발행연도
2005.3
수록면
356 - 367 (12page)

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The spray characteristics of DISI injector have a great role in gasoline engine efficiency and emission Thus, many researchers have studied to investigate the spray characteristics of swirl and slit injectors that are used in a DISI engine in this study, we tried to provide spray parameters, which affect on the spray characteristics such as injection pressure, ambient pressure and ambient temperature in addition, we calculated tb and tc to investigate the break up mechanism of test injectors and obtained Cv to evaluate the spray characteristics As the ambient pressure increases in case of slit injector, Cv decreases The laser-induced exciplex fluorescence (LIEF) technique, which is based on spectrally resolved two-color fluorescent emissions, has applied to measure the liquid and vapor phases for on evaporating spray simultaneously. The TMPD/naphthalene proposed by Melton is used as a dophant to detect exciplex signal The temporal and spatial distribution of liquid and vapor phases during the mixture formation process was measured by this technique in the LIEF technique, the vapor phase is detected by the monomer fluorescence while the liquid phase is tracked by the exciplex fluorescence From this experiment, we found that the spray area of the vapor phase is increased with elapsed time after injection and the area of liquid is decreased when the ambient pressure is 0.1MPa However, the area tends to increase until the end of injection when the ambient pressure is 1.0MPa.

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Abstract

1. 서론

2. 실험 장치 및 방법

3. 결과 및 고찰

4. 결론

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