Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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The Effect of Hydrogen Enrichment on Exhaust Emissions and Thermal Efficiency in a LPG fuelled Engine

  • Park, Gyeung-Ho (School of Mechanical & Automotive Engineering, Keimyung University,) ;
  • Han, Sung-Bin (Department of Mechanical System, Induk Institute of Technology,) ;
  • Chung, Yon-Jong (Department of Automobile, Daegu Mirae College)
  • Published : 2003.08.01
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Abstract

The concept of hydrogen enriched LPG fuelled engine can be essentially characterized as low emissions and reduction of backfire for hydrogen engine. The purpose of study is obtaining low-emission and high-efficiency in LPG engine with hydrogen enrichment. In order to determine the ideal compression ratio, a variable compression ratio single cylinder engine was developed. The objective of this paper is to clarify the effects of hydrogen enriched LPG fuelled engine on exhaust emission, thermal efficiency and performance. The compression ratio of 8 was selected to minimize abnormal combustion. To maintain equal heating value, the amount of LPG was decreased, and hydrogen was gradually added. In a similar manner, the relative air-fuel ratio was increased from 0.8 to 1.3 in increment of 0.1, and the ignition timing was controlled to be at MBT each case.

Keywords

References

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