Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
권호 표지

Comparison of Performance and Emissions Characteristics on 23cc Gasoline engine and LPG engine at WOT Condition

WOT조건에서 23cc 가솔린 엔진과 LPG 엔진의 성능 및 배기특성 비교

  • 김병국 (전북대학교 기계공학과 대학원) ;
  • 최영하 (전북대학교 기계공학과 대학원) ;
  • 오진우 (전북대학교 기계공학과 대학원) ;
  • 이동근 (전북대학교 기계공학과 대학원) ;
  • 김동선 (한성공업주식회사) ;
  • 윤석주 (전북대학교 기계공학과)
  • Published : 2009.03.31
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Abstract

This paper presents the performance and emissions characteristics of a small spark-ignited 2-stroke gasoline and LPG engine. The engine used in this paper is a single cylinder, two-stroke, air-cooled SI engine for brush cutter. We measured the rpm, torque, fuel consumption and HC, CO, NOx emissions in associated with the dynamometer load at WOT. The results showed that as engine revolution speed decreased, the excess air ratio of gasoline engine kept going about 0.9 and that of LPG engine increased 0.83 to 1.05. Torque and power of gasoline engine was higher than LPG engine. In exhaust emissions, HC emissions of gasoline engine was lower than LPG engine. In low speed area, CO emissions of LPG engine was lower than gasoline engine. Both gasoline engine and LPG engine emitted little NOx emissions.

Keywords

References

  1. 나병철, 서준호, 김진용, "소형 2 스트로크 엔진 배기 규제 대응 및 설계기술", 한국자동차공학회 추계학술대회논문집, 2004, pp.128-133.
  2. 정용일, 윤재건, "자동차와 환경", 한성대학교 출판부, 2000.
  3. K. Morikawa and H. Takimoto, "A Study of direct fuel injection two-stroke engine for high specific power output and high engine speed", SAE 1999-01-3288, 1999.
  4. A. Graham bell, "Two-stroke performance tuning", Haynes Publishing, second edition, 1999, p.120
  5. T. Tokui and J. Shirahata, "Small engine catalyst for US emission regulations", SAE 2002-32-1837, 2002.
  6. H. Akiyama, K. Suzuki, K. Araki and Y. Nakano, "Development of carburetors and elements parts of fuel injection system for motorcycles", SAE 2005-32-0068, 2005.
  7. M. Yoshida, T. Suzuki and Y. Oguri, "Study on electronic control of air fuel ratio and ignition timing for small gasoline engine", SAE 2001-01-1861, 2001.
  8. Trimmer and blower carburetors Service Manual, http://69.16.165.8/brochures.aspx.
  9. J. Bin, L. Manqun, Y. Xicheng and J. Yabing, "An experimental survey on the emissions characteristics of non-road small S.I. engines in China", SAE 2003-32-0036, 2003.