Feasibility Test of LPG Vehicles by Using DME-LPG Blends

DME-LPG 혼합연료를 사용한 LPG 차량의 실증평가

Youn, Jumin;Lee, Minho;Park, Cheonkyu;Hwang, Inha;Ha, Jonghan;Kang, Yong

  • Received : 2015.08.26
  • Accepted : 2015.12.15
  • Published : 2015.12.31


Dimethyl ether (DME) can be used as a clean diesel alternative fuel due to the high cetane number and low emission, it can also be applied to automotive fuel as a blended liquefied petroleum gas (LPG) because physical properties are similar to those of LPG. In this study, feasibility test of LPG vehicle using blended DME-LPG fuel was investigated. Three types of fuel supply such as LPLi (Liquid phase LPG injection), LPGi (Liquid phase gas injection) and mixer type were selected to consider the LPG fuel-injection system. The performance characteristics of LPG vehicle were examined by using LPG and blended DME-LPG fuel in order to compare the exhaust emissions (CO, THC, $NO_X$) and fuel economy. The emissions and fuel economy of DME-LPG blend fuel were comparable to those of LPG with increasing driving distance.


DME;LPG;Alternative fuel;Emission;Fuel economy


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Grant : DME-LPG 혼합연료 적용 설비 및 차량에 대한 기술개발

Supported by : 지식경제부