Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Performance and Emission Characteristics of Liquid-Phase LPG Injection Engine with Different EGR Rate

EGR율 변화에 대한 액상 LPG분사 엔진의 운전 및 배출가스특성

  • 염기태 (한국과학기술원 기계공학과) ;
  • 우영민 (한국과학기술원 기계공학과) ;
  • 장진영 (한국과학기술원 기계공학과) ;
  • 박용국 (한국과학기술원 기계공학과) ;
  • 배충식 (한국과학기술원 기계공학과)
  • Published : 2003.09.01
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Abstract

Exhaust Gas Recirculation (EGR) system is used to reduce NOx emission, to improve fuel economy, and to suppress knock since it offers the benefits of the inlet charge dilution. The effects of EGR was investigated on the performance and emission to reduce exhaust thermal load with a single cylinder liquid-phase LPG injection engine, in a wide range of EGR rate, engine conditions and LPG proportions. As EGR rate was increased, NOx was reduced while HC was increased. Pumping loss reduction by EGR improved bsfc and increased EGR lowered exhaust gas temperature. And, LPG proportions were made a difference on the performance and emission characteristics.

Keywords

References

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