Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Analysis on Performance and Emission with Different Diesel Injection Methods in a Dual-Fuel Engine

디젤 분사방식에 따른 이종연료 엔진의 성능 및 배기 분석

  • 박현욱 (한국기계연구원 모빌리티동력연구실) ;
  • 이준순 (한국기계연구원 모빌리티동력연구실) ;
  • 오승묵 (한국기계연구원 모빌리티동력연구실) ;
  • 김창업 (한국기계연구원 모빌리티동력연구실) ;
  • 이용규 (한국기계연구원 모빌리티동력연구실) ;
  • 장형준 (한국기계연구원 모빌리티동력연구실)
  • Received : 2022.06.10
  • Accepted : 2022.06.23
  • Published : 2022.06.30
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Abstract

Performance and emissions with different diesel injection methods were analyzed in a natural gas-diesel, dual-fuel engine under low-load conditions. Natural gas was supplied to intake port during the intake stoke to form a natural gas-air premixed mixture for all methods. Diesel was injected directly into the cylinder during the compression stroke in three ways: early injections, late injections, and a combination of early and late injections. The early injections had the highest thermal efficiency among the three methods owing to its highest combustion efficiency. The wide dispersion of diesel before the combustion initiation also allowed superior emissions characteristics.

Keywords

Acknowledgement

본 연구는 산업통상자원부 기계 산업핵심기술개발사업의 "디젤천연가스 고효율 융합연소 신엔진 기술개발(20003640)" 과제의 지원에 의해 수행되었으며 이에 감사드립니다.

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