A Study on Spray and Combustion Characteristics of Biodiesel Blended Diesel Fuel in a Constant Volume Combustion Chamber

바이오디젤이 혼합된 디젤 연료의 분무 및 연소 특성에 관한 연구

  • Received : 2014.12.15
  • Accepted : 2015.02.05
  • Published : 2015.03.31


The objective of this study is to investigate the effect of biodiesel blending on spray and combustion characteristics. In order to this, blended fuels containing 0, 5, 20, 50, 100% biodiesel in weight fraction was injected via common rail to constant volume combustion chamber. As a result, spray cone angle decreased and the Sauter mean diameter increased because of the higher dynamic viscosity and density of biodiesel, however, it does not seemed that spray penetration was affected by these factors considerably. In the combustion experiment, ignition delay of biodiesel was shorter than that of diesel due to higher cetane number. And the peak value of heat release rate increased and the end of combustion was advanced owing to higher combustion efficiency cause by the characteristic of oxygenated fuel.


Biodiesel;Spray cone angle;Sauter mean diameter;Heat release rate


  1. Syed Ameer Basha, K. Raja Gopal, S. Jebaraj: "A review on biodiesel production, combustion, emissions and performance", Renewable and Sustainable Energy Reviews, Vol. 13, 1628-1634, (2009)
  2. Seung Hyun Yoon, Hyun Kyu Suh, Chang Sik Lee: "Effect of Spray and EGR Rate on the Combustion and Emission Characteristics of Biodiesel Fuel in a Compression Ignition Engine", Energy & Fuels, Vol. 23, 1486-1493, (2009)
  3. Chao He, Yunshan Ge, Jianwei Tan, Xiukun Han: "Spray properties of alternative fuels: A comparative analysis of biodiesel and diesel", Int. J. Energy Res. Vol. 32, 1329-1338, (2008)
  4. 정규수, 이동곤, 노현구, 이창식: "바이오디젤 혼합연료를 적용한 커먼레일 디젤엔진에서 파일럿 분사에 따른 연소 및 배기 특성", 한국연소학회지, Vol. 16, No. 4, 1-7, (2011)
  5. 김재곤, 박조용, 전철환, 민경일, 임의순, 정충섭, 이진휘: "다양한 식물성유지에서 유래된 바이오디젤의 연료 특성", 한국화학학회지,Vol. 30, No. 1, 35-48, (2013)
  6. 이상득, 정석호: "전자 제어 분사식 과급디젤기관에서 에스테르화와 비에스테르화 바이오 디젤유의 연소 특성 비교", 한국마린엔지니어링학회지, Vol. 37, No. 1, 53-58, (2013)
  7. 정만석, 이경환, "경유와 바이오 디젤 액적의 혼합비율과 크기에 따른 연소특성", 에너지공학회지, Vol. 18, No. 2, 101-107, (2009)


Supported by : 한국에너지기술평가원(KETEP)