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A Impact Study on Combustion Characteristics of the Engine by Changing the Gasoline Properties

휘발유 물성변화가 엔진의 연소특성에 미치는 영향 연구

  • Noh, Kyeong-ha (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Im, Sang-bin (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Lee, Min-ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Kim, Ki-ho (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • Ha, Jong-han (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
  • Received : 2015.08.10
  • Accepted : 2015.12.10
  • Published : 2015.12.31

Abstract

This study examined combustion characteristics by selecting the fuel which have a different physical properties compared to gasoline in order to examine the effects of vehicle performance and environment depending on the physical properties. The experiment examined the combustion characteristic in the optimum ignition timing according to the physical properties change and the lean burn by performing control about ignition timing and air-fuel ratio for each fuel, and it was also evaluated the exhaust gas according to the experiment. We used a single-cylinder engine for the experiment, and tested for gasoline properties change by selecting a fake fuel that beyond the fuel quality standards in 석대법. As a result, in the case of the selected fuel showed a difference in Octane and distillation characteristics, vapor pressure and it was also found to unstable combustion, and leads to a large amount of harmful exhaust gas.

본 연구에서는 물성 변화에 따라 자동차 성능 및 환경에 미치는 영향을 살펴보기 위하여 휘발유 대비 물성이 상이한 연료를 선정하여 연소특성을 살펴보았다. 실험은 각 연료에 맞는 점화시기 및 공연비제어를 수행하여 물성변화에 따른 최적의 점화시기와 희박연소에 에서의 연소특성을 살펴보았으며, 그에 따른 배출가스도 평가하였다. 실험을 위해 단기통 엔진을 사용하였으며, 휘발유 물성변화를 위해 "석유 및 석유대체사업법"에 고시된 품질기준을 벗어나는 가짜연료를 선정하여 실험을 수행하였다. 그 결과 선정된 연료의 경우 옥탄가와 증류성상, 증기압에서 차이를 보였으며, 불안정 연소 및 다량의 유해배출가스를 유발함을 알 수 있었다.

Keywords

References

  1. H.C.LEE ea al., 1992, Effect of Fuel Octane Number on Knock Characteristics in a Spark-Ignition Engine, ksea, 3-7
  2. Christopher Beck, Pal Stevenson and Paullne Ziman, "The Impact of Gasoline Ocatane on Fuel Economy in Modern Vehicles", SAE TECHNICAL PAPER SERIES 2006-01-3407
  3. Kalghatgi G.T; "Fuel anti-knock quality-Part II: Vehicle studies-How relevant is motor octane number(MON) in modern engine?"; SAE 2001-01-3585
  4. Akihama et al., Toyota-Exxon, "Fuel Octane and Composition Effects on Efficiency and Emissions in a High Compression Ratio SIDI Engine"SAE 2004-01-1950
  5. Farrell et al., Exxon Toyota, "Fuel Effects on SIDI Efficiency and Emissions"SAE 2003-01-3186