DME 연료의 거시적 분무특성에 관한 실험적 연구Experimental Study on the Macroscopic Spray Characteristics of DME Fuel
- Other Titles
- Experimental Study on the Macroscopic Spray Characteristics of DME Fuel
- Authors
- 박정환; 박수한; 이창식; 박성욱
- Issue Date
- Sep-2010
- Publisher
- 한국분무공학회
- Keywords
- DME; 분무각; 분무도달거리; 분사조건; 분무가시화; Dimethyl-ether(DME); Spray cone angle; Spray tip penetration; Injection conditions; Spray visualization
- Citation
- 한국분무공학회지, v.15, no.3, pp.115 - 123
- Indexed
- KCI
- Journal Title
- 한국분무공학회지
- Volume
- 15
- Number
- 3
- Start Page
- 115
- End Page
- 123
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173702
- ISSN
- 1226-2277
- Abstract
- The purpose of this study is to compare and to investigate spray characteristics of dimethyl ether (DME) and diesel fuel in the various injection pressures, ambient pressures, and the energizing durations. For the analysis of the spray characteristics, the spray visualization system including the high speed camera and the spray image analyzer is installed. The spray characteristics such as the spray development process, spray tip penetraion and the spray cone angle are analyzed from the spray images. It was revealed that the spray characteristics of DME and diesel fuels are mainly affected by the injection conditions. However, in the region after the end of the injection, the spray tip penetration was affected by the fuel properties such as the fuel density, the surface tension, and the viscosity. DME fuel has enerally a short tip penetration and a wide cone angle. In the elevating conditions of the ambient gas pressure, the spray cone angle of DME fuel converged to high value when comparing diesel fuel in advance. Also, the increasing rate of the spray tip penetration in DME fuel is significantly decreased from 0.7 ms of the energizing duration (diesel : 0.9 ms).
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