Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Improvement of Thermal Efficiency and Emission by Lean Combustion in a Boosted Spark-Ignition Engine Fueled with Syngas

합성가스 스파크점화 과급 엔진에서 희박 연소를 통한 열효율 및 배기 개선

  • 박현욱 (한국기계연구원 그린동력연구실) ;
  • 이준순 (과학기술연합대학원대학교 환경에너지기계공학) ;
  • 나랑후 잠스랑 (한국기계연구원 그린동력연구실) ;
  • 오승묵 (한국기계연구원 그린동력연구실) ;
  • 김창업 (한국기계연구원 그린동력연구실) ;
  • 이용규 (한국기계연구원 그린동력연구실) ;
  • 강건용 (한국기계연구원 그린동력연구실)
  • Received : 2021.02.15
  • Accepted : 2021.03.10
  • Published : 2021.03.31
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Abstract

Lean combustion was applied to improve the thermal efficiency and emission in a single-cylinder, spark-ignition engine fueled with syngas. Under naturally aspirated conditions, the lean combustion significantly improved the thermal efficiency compared to the stoichiometric combustion, mainly due to the reduction in heat transfer loss. Intake air boost was applied to compensate the low power output of the lean combustion. The gross indicated power of 24.8 kW was achieved by increasing the intake pressure up to 1.6 bar at excess air ratio of 2.2. The nitrogen oxides showed near zero level, but the carbon monoxide emission was significant.

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References

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