Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Comparisons of Diesel and DME Fuel in Macroscopic Spray Characteristics

디젤 및 DME 연료의 거시적 분무특성 비교

  • 박준규 (한양대학교 대학원 기계공학과) ;
  • 전문수 (한국교통대학교 에너지시스템공학과) ;
  • 박성욱 (한양대학교 기계공학부)
  • Received : 20110000
  • Accepted : 20110000
  • Published : 2012.12.31
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Abstract

This study focused on comparing macroscopic characteristics of DME and diesel fuel experimentally. DME fuel is one of the most promising alternative fuels because of its superiority in atomization characteristic and clearness in terms of exhaust gas compared with existing fossil fuels. In addition, DME fuel has high cetane number so it could be applied to compression ignition engine. However because DME fuel exists in gas phase at room temperature and atmospheric pressure, and it corrodes rubber parts of fuel line, DME fuel is hard to apply to commercial vehicles. To establish knowledge about DME fuel and furthermore, to develop commercial DME vehicles such as passenger cars, many research have been proceeded steadily. The present study, by comparing spray characteristics of DME fuel to those of diesel fuel, improved atomization characteristics in DME were revealed. Injection quantity measurement and spray visualization experiment were progressed and it was revealed that DME fuel shows small injection quantity than that of diesel fuel and axial development of spray in terms of spray tip penetration decreases when DME fuel was injected.

Keywords

References

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  1. Effect of Nozzle Hole Number on Atomization Characteristics of DME Fuel Spray using High Pressure Injector vol.19, pp.4, 2014, https://doi.org/10.15435/JILASSKR.2014.19.4.216