Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Feasibility Test of LPG Vehicles by Using DME-LPG Blends

DME-LPG 혼합연료를 사용한 LPG 차량의 실증평가

  • Youn, Jumin (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lee, Minho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Park, Cheonkyu (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Hwang, Inha (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Ha, Jonghan (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kang, Yong (Department of Chemical Engineering, Chungnam National University)
  • 연주민 (한국석유관리원 석유기술연구소) ;
  • 이민호 (한국석유관리원 석유기술연구소) ;
  • 박천규 (한국석유관리원 석유기술연구소) ;
  • 황인하 (한국석유관리원 석유기술연구소) ;
  • 하종한 (한국석유관리원 석유기술연구소) ;
  • 강용 (충남대학교 화학공학과)
  • Received : 2015.08.26
  • Accepted : 2015.12.15
  • Published : 2015.12.31
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Abstract

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.

DME는 높은 세탄가와 낮은 배출가스로 인하여 청정 디젤엔진 대체연료로 사용될 수 있고, LPG와 물리적 특성이 유사하기 때문에 혼합사용이 가능하다. 본 연구에서는 DME-LPG 혼합연료를 LPG 차량 연료에 적용한 실증평가를 수행하였다. 평가 차량으로는 LPG 연료 공급방식별로 액상연료공급방식(LPLi), 기상연료공급방식(LPGi), 분배식펌프 방식(Mixer type)의 LPG 자동차를 선택하였다. 배출가스(CO, THC, $NO_X$)와 연료소비효율에 대한 영향을 비교하기 위하여 LPG와 DME-LPG 혼합연료에 대한 성능평가를 수행하였다. 차량의 주행거리가 증가함에 따라 DME-LPG 혼합연료를 사용한 차량의 배출가스와 연료소비효율은 LPG 연료를 사용한 경우와 비교해서 동등한 수준으로 평가되었다.

Keywords

References

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