Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the Characteristics of Spray and Engine Combustion of Diesel-DME Blended Fuel

Diesel-DME 혼합연료의 분무 및 엔진 연소특성에 관한 연구

  • 양지웅 (울산대학교 기계자동차공학과 대학원) ;
  • 정재훈 (울산대학교 기계자동차공학과 대학원) ;
  • 임옥택 (울산대학교 기계공학부)
  • Received : 2012.09.21
  • Accepted : 2013.06.03
  • Published : 2013.06.30
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Abstract

The purpose of this study was compared the spray, combustion and emissions (NOx, CO, HC, smoke) characteristics of a typical fuel (100% Diesel, DME) and Diesel-DME blended fuel in a Constant Volume Chamber (CVC) and a single-cylinder DI diesel engine. Spray characteristics were investigated under various ambient and fuel injection pressures when the Diesel-DME blended ratio is varied. The parameters of spray sturdy were spray shape, penetration length, and spray angle. Common types of injectors having seven holes and made by Bosch were used. As of use, the typical fuel (100% Diesel, DME) and the blended fuel by mixture ratio 95:5, 90:10 (Diesel:DME) were used. The Injection pressure was fixed by 70.1MPa, when the ambient Pressure was varied 0.1, 2.6 and 5.1 MPa. The combustion experiments was conducted with single cylinder engine equipped with common rail injection system. injection pressure is 70 MPa. The amount of injected fuels is adjusted to obtain the fixed input calorie value as 972.2 J/cycle in order to compare with the fuel conditions.

Keywords

References

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Cited by

  1. An Investigation on Spray Characteristics of Diesel - DME with Change of Injection Pressure vol.18, pp.4, 2013, https://doi.org/10.15435/JILASSKR.2013.18.4.188