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A Study on Engine Performance and Exhaust Emissions for Biodiesel Blending Ratios and Fuel Injection Timing in an Indirect Injection Compression Ignition Engine

간접분사식 압축착화기관에서 BD 혼합율과 연료분사시기에 따른 기관성능 및 배기배출물 특성 연구

  • Choi, Seung-Hun (The Research Center of Industrial Technology, Dept. of mechanical Engineering, Chonbuk National University) ;
  • Oh, Young-Taig (The Research Center of Industrial Technology, Dept. of mechanical Engineering, Chonbuk National University)
  • Received : 2010.07.20
  • Accepted : 2010.08.16
  • Published : 2010.08.25

Abstract

Biodiesel (BD) can be effectively used as an alternative fuel in diesel engines. However, BD may affect the performance and exhaust emissions in diesel engines because it has different physical and chemical properties from diesel fuel such as viscosity, compressibility and so on. To investigate the effect of injection timing on the characteristics of engine performance and exhaust emissions with BD in an indirect injection diesel engine, BD derived from soybean oil was applied in this study. The engine was operated at six different injection timings from TDC to BTDC $12^{\circ}CA$ and five loads at various engine speeds. Below BD 30, there's similar trend compared with diesel fuel. But, the best injection timing was $4{\sim}6^{\circ}CA$ retarded compare with diesel fuel using BD 30. When the fuel injection timing was retarded, better results were showed, which may confirm by advantages of BD.

Keywords

References

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