Effects of Hydrogen Ratio on Combustion and Emissions Characteristics of Hydrogen/Diesel Dual-Fuel Engine

수소의 혼합 비율에 따른 수소/디젤 혼소 엔진의 연소 및 배기 특성 파악

  • 박현욱 (한국과학기술원 기계공학과) ;
  • 배충식 (한국과학기술원 기계공학과)
  • Published : 2014.11.27

Abstract

The effects of hydrogen ($H_2$) ratio on combustion and emission characteristics in a $H_2/diesel$ dual-fuel engine were investigated. Dual-fuel strategy was applied to improve the control of combustion phasing. The combustion phasing was retarded with increasing $H_2$ fraction. This can be explained by both reduced diesel concentration and chemical effect of $H_2$, which reduce the heat release rate during the low temperature reaction stage. Hydrocarbon and carbon monoxide emissions of the engine were decreased drastically when $H_2$ ratio was increased.

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