An Investigation on the Proper Hydrogen Mixing Rate in Heavy-Duty Hydrogen-CNG Engine

수소-천연가스 혼합연료기관의 최적 수소 분사율 검토

  • LlM, H.S. (Grad. School of Sungkyunkwan Univ.) ;
  • KIM, Y.Y. (Grad. School of Sungkyunkwan Univ.) ;
  • LEE, JONG T. (School of Mechnnical Engineering, Sungkyunkwan Univ.)
  • Published : 2004.06.30

Abstract

A heavy duty hydrogen enriched CNG engine has the possibility to obtain stable operation at ultra lean condition and to reduce emission extremely. And it can also serve as a so called bridge technology between the current fossil fueled engine and the future hydrogen power system. The emission, torque and brake thermal efficiency characteristics of a heavy-duty hydrogen-CNG engine were investigated to determine the proper mixing rate of hydrogen and CNG. It was found that the proper mixing rates at ${\lambda}=1.4$ and ${\lambda}=1.6$ were around 20% and 30% for hydrogen addition rate respectively.

Keywords

Acknowledgement

Supported by : 산업자원부

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