Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Spray and Flame Characteristics of Waste Cooking Oil Biodiesel and Diesel in a Compression Ignition Diesel Engine Using In-cylinder Visualization

가시화 엔진을 이용한 직접 분사식 압축착화 디젤엔진에서 폐식용유 바이오디젤과 디젤의 분무 및 화염 특성 비교

  • Hwang, Joonsik (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Bae, Choongsik (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • 황준식 (한국과학기술원 기계공학과) ;
  • 배충식 (한국과학기술원 기계공학과)
  • Received : 2013.10.31
  • Accepted : 2014.01.17
  • Published : 2014.04.01
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Abstract

Spray and combustion process with waste cooking oil (WCO) biodiesel and commercial diesel were analyzed in an optically-accessible single-cylinder compression ignition diesel engine equipped with a high pressure common-rail injection system. Direct imaging method was applied to investigate spray and combustion characteristics. From the mie-scattering results, it was verified that WCO biodiesel had a longer injection delay compared to diesel. Spray tip penetration length of WCO biodiesel was longer and spray angle was narrower than those of diesel due to poor atomization characteristics. In terms of combustion, WCO biodiesel showed later start of combustion, while flame was vanished more rapidly. Analysis of flame luminosity showed that WCO biodiesel combustion had lower intensity and lasted for shorter duration.

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References

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