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Study of Experimental and Numerical Analysis on Behavior Characteristics of Emulsified Fuel

에멀젼연료 거동특성에 관한 실험 및 수치해석 연구

  • Yeom, Jeong-Kuk (Department of Mechanical Engineering, Dong-A University)
  • 염정국 (동아대학교 기계공학과)
  • Received : 2017.04.17
  • Accepted : 2017.08.01
  • Published : 2017.08.31

Abstract

Diesel engines with compression-ignition type have superior thermal efficiency, durability and reliability compared to gasoline engine. To control emitted gas from the engines, it can be applied to alternative fuel without any modification to the engine. Therefore, in this study, as a basic study for applying emulsified fuel to the actual diesel engine, analysis of spray behavior characteristics of emulsified fuel was carried out simultaneously by experimental and numerical method. The emulsified fuel consist of diesel, hydrogen peroxide, and surfactant. The surfactant for manufacturing emulsified fuel is comprised of span 80 and tween 80 mixed as 9:1 and fixed with 3% of the total volume of the emulsified fuel. In addition, six kinds of emulsified fuel(EF0, EF2, EF12, EF22, EF32, and EF42) were manufactured according to the mixing ratio of hydrogen peroxide. The droplet and spray experiments were performed to observe the behavior characteristics of the emulsified fuel. The numerical analysis was carried out using ANSYS CFX to confirm the microscopic behavior characteristics. Consequently, rapid mixture formation can be expected due to evaporation of hydrogen peroxide in emulsified fuel, and it is confirmed that Reitz&Diwakar breakup model is most suitable as breakup model to be applied to the numerical analysis.

Keywords

References

  1. IMO, 2014, Marine Environment Protection Committee, 66th session.
  2. S. Y. No, 2009, "Bioenergy Engineering", ABCNURI, Chungbuk National University, pp. 47-60.
  3. Press Release from Ministry of Knowledge Economy, 2007, "Long-Term Plans to Supply Biodiesel", Korea.
  4. Press Release from Ministry of Knowledge Economy, 2010, "Second Long-Term Plans to Supply Biodiesel", Korea.
  5. M. C. Kim and C. S. Lee, 2008, "It's Effects for Engine Emission of Water/Oil Emulsified Fuel", Analytical Science & Technology, Vol. 21, No. 3, pp. 159-166.
  6. A. Lif and K. Holmberg, 2006, "Water-in-Diesel Emulsions and Related Systems", Advances in Colloid and Interface Science, Vol. 123-126, pp. 231-239. https://doi.org/10.1016/j.cis.2006.05.004
  7. M. P. Ashok and C. G. Saravanan, 2008, "Role of Hydrogen Peroxide in a Selected Emulsified Fuel Ratio and Comparing It to Diesel Fuel", Energy & Fuels, Vol. 22, No. 3, pp. 2099-2103. https://doi.org/10.1021/ef7007584
  8. J. K. Yeom and J. H. Yoon, 2014, "Basic Study of Spray-Behavior Characteristics of Emulsified Fuel", Trans. Korean Soc. Mech. Eng. B, Vol. 38, No. 9, pp. 763-771. https://doi.org/10.3795/KSME-B.2014.38.9.763
  9. 2015, ANSYS CFX-Solver Theory Guide Release 16.2, ANSYS, Inc., Canonsburg, USA.
  10. J. K. Yeom and J. H. Yoon, 2015, "Study of Behavior Characteristics of Emulsified Fuels with Evaporative Field," Trans. Korean Soc. Mech. Eng. B, Vol. 39, No. 3, pp. 237-243. https://doi.org/10.3795/KSME-B.2015.39.3.237