Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Effect of Diesel-ethanol Blended Fuel on the Vibration and Emission Characteristics in a Diesel Engine

디젤 엔진의 디젤-에탄올 혼합연료 적용이 엔진 진동 및 배기가스 특성에 미치는 영향

  • 이두진 (한양대학교 대학원 기계공학과) ;
  • 노현구 (인덕대학교 기계자동차과) ;
  • 이창식 (한양대학교 기계공학부)
  • Received : 2011.10.07
  • Accepted : 2012.01.17
  • Published : 2012.03.30
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Abstract

This study described the effect of the multiple injections and diesel-ethanol on the NVH, combustion and emission characteristics of 4 cylinder common rail diesel engine. In order to investigate the influence of diesel-ethanol blended fuel in a light-duty common rail diesel engine, the injection strategy was varied with pilot injection, double pilot injections, and one main injection at various operating conditions. The results showed that diesel-ethanol blended fuel had longer ignition delay than that of the ultra low diesel fuel(ULSD). Also, in the case of multiple injections, the combustion pressure is increased smoothly near the TDC and the NVH are decreased. In the emission characteristics, diesel-ethanol blended fuel produced lower indicated specific nitrogen oxides(IS-NOX) and indicated specific Soot(IS-soot) emissions, however, indicated specific unburned hydrocarbon(IS-HC) and indicated specific carbon monoxide(IS-CO) emissions are slightly increased.

Keywords

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