Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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The Study for Improving the Combustion of Biodiesel Fuel using Multi-cavity Piston

Multi-cavity Piston에 의한 바이오디젤유의 연소성 향상에 관한 연구

  • Bang, Joong Cheol (Department of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, Yong Jae (Department of Mechanical Engineering, Graduate School, Kumoh National Institute of Technology) ;
  • Park, Chul Hwan (Department of Mechanical Engineering, Graduate School, Kumoh National Institute of Technology)
  • 방중철 (금오공과대학교 기계공학과) ;
  • 김용재 (금오공과대학교 대학원 기계공학과) ;
  • 박철환 (금오공과대학교 대학원 기계공학과)
  • Received : 2015.09.04
  • Accepted : 2015.10.15
  • Published : 2015.12.30
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Abstract

American NREL (National Renewable Energy Laboratory) reported that BD20 could reduce PM, CO, SOx and cancerogenic matters by 13.6%, 9.3%, 17.6% and 13% respectively, compared to diesel fuel. BD20 has been being tested on garbage trucks and official vehicles at Seoul City, which is positive on air environment, but negative on combustion by higher viscosity in winter season. This study investigated the combustion characteristics by employing multi cavity piston for improving the deterioration of combustibility caused by the higher viscosity of the biodiesel fuel such as BD20 with the combustion flames taken by a high speed camera and the cylinder pressure diagram. A 4-cycle single cylinder diesel engine was remodeled to a visible 2-cycle engine for taking the flame photographs, which has a common-rail injection system. The test was done at laboratory temperature of about $4{\sim}5^{\circ}C$.

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References

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