DOI QR코드

DOI QR Code

나노 입자가 포함된 연료 액적의 분열 특성 연구

Breakup Characteristics of Fuel Droplet Including Nanoparticles

  • 투고 : 2012.10.02
  • 심사 : 2012.12.03
  • 발행 : 2012.12.31

초록

This paper reports on breakup characteristics of fuel droplet which includes metal nanoparticles. In order to develop a new injection system for nanoparticle-coated layers overcoming the conventional flame spray system, fundamental experiments were conducted to examine the interaction between a fuel droplet with nanoparticles and the external energy induced by the laser. In the experiments, this study used nickel nanoparticles whose size was under 100 nm to mix with kerosene as the fuel, and utilized a syringe pump and a metal needle to inject a fuel droplet. In particular, the Nd-YAG laser was adopted to give additional energy to the nanoparticles for evaporation of a fuel droplet containing nanoparticles. When the laser energy as 96 mJ was irradiated during the injection, it was observed that such an explosive evaporation occurred to break up a fuel droplet including nanoparticles, making the rapid increase in the ratio surface area to liquid volume. From this work, we suggest the possibility that the laser energy can be used for rapid evaporation of a fuel droplet.

키워드

참고문헌

  1. D. H. Shin, J. B. Lee, and S.H. Lee, "Numerical study of metal particle behaviors and flow characteristics in flame spray process", 한국액체미힙화학회지, Vol. 16, pp. 37-43, 2011.
  2. V. P. Rotshtein, D. I. Proskurovsky, G. E. Ozur, Yy. F. Ivanov and A. B. Ro. Markov, "Surface modification and allying of metallic materials with low-energy highcurrent electron beams", Surf. Coat. Technol., Vol. 180-181, pp. 377-381, 2004. https://doi.org/10.1016/j.surfcoat.2003.10.085
  3. M. Astramd, T. I. Selinder, F. fietzke and H. Klostermann, "PVD-Al2O3-coated cemented carbide cutting tools", Surf. Coat. Technol., Vol. 180-181, pp. 377-381, 2004. https://doi.org/10.1016/j.surfcoat.2003.10.085
  4. J. F. Li and F. H. Stott, "statistical approach for minimizing cracks in combined flame spraying and laser surface modification of refractory ceramics", J. Eur. Ceram. Soc., Vol. 563, Issue 2, pp. 249-255.
  5. S. Matthews, and B. James, "Review of thermal spray coating applications in the steel industry: Part 1-Hardware in steel making to the continuous annealing process", J. Therm. Spray Technol., Vol. 19, pp. 1267- 1276, 2010. https://doi.org/10.1007/s11666-010-9518-8
  6. R. L. Williamson, J. R. Fincke and C. H. Chang, "A computational examination of the sources of statistical variance in particle parameters during thermal plasma spraying", Plasma Chem. Plasma Process., Vol. 20, pp. 115-124, 2000.
  7. L. Pawlowski, "The science and engineering of thermal spray coatings", John Wiley & Sons, Ltd., 2008.
  8. J. A. Pimenoff, A. K. Hovinen, and M. J. Rajala, "Nanostructured coatings by liquid flame spraying" Thin solid films, Vol. 517, pp. 3057-3060, 2009. https://doi.org/10.1016/j.tsf.2008.11.082
  9. J. Bico, U. Thiele and D. Quere, "Wetting of textured surfaces" Colloid and surf. A: Phycochem. Eng. Asp., Vol. 206, pp. 41-46, 2009.
  10. D. H. Shin, and S.H. Lee, "Wetting behavior and evaporation characteristics of nanofluid droplets on glass surfaces", 한국액체미립화학회지, Vol. 17, pp. 9-13, 2012.