Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Research on the Combustion and Emission Characteristics of the DME/Diesel Dual-fuel Engine

DME/Diesel 듀얼 퓨얼 엔진의 연소 및 배출 특성에 관한 연구

  • 임옥택 (울산대학교 기계.자동차공학부) ;
  • 표영덕 (한국에너지기술연구원) ;
  • 이영재 (한국에너지기술연구원)
  • Received : 2010.09.17
  • Accepted : 2011.03.24
  • Published : 2011.09.01
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Abstract

This study investigates the potential of DME/Diesel dual fuel engine for reducing emissions with same power. Dual fuel engine controls the combustion using two different fuels, DME and diesel with different auto-ignition timings. In the previous work, the caracteristics of combustion and emissions under single cylinder engine and ignition is done by compression ignition. Pre-mixture is formed by injecting low-pressure DME into an intake manifold and high-pressure fuel (diesel or DME) is injected directly into the cylinder. Both direct diesel injection and port fuel injection reduced the significant amount of Smoke, CO and NOx in the homogeneous charge compression ignition engine due to present of oxygen in DME. In addition, when injecting DME directly in cylinder with port DME injection, there is no changes in emissions and energy consumption rate even operated by homogeneous charge compression ignition.

Keywords

References

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