Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
권호 표지

An Experimental Study on the Atomization Characteristics of Electrohydrodynamic for Ethanol($C_2H_5OH$) Fuel

에탄올($C_2H_5OH$) 연료의 전기수력학적 미립화 특성에 관한 실험적 연구

  • 성기안 (강원도립대학 자동차과)
  • Published : 2009.06.30
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Abstract

An experimental study was performed to explore the atomization characteristics as the drop formation and the liquid breakup of an ethanol fuel using an electrohydrodynamic atomizer. A developed electrohydrodynamic atomizer controlled by a high AC power, a variable frequency, and a liquid feeding was used for the experiments. The test had been considered a disperse atomization processing at $450{\sim}4200V$ applied power, $200{\sim}400\;Hz$ frequency, and $1{\sim}3\;ml/min$ ethanol feeding to achieve an uniformed droplet formation. The goal of the research was to investigate the possibility of the liquid breakup for an ethanol fuel in an electrohydrodynamic atomizer. The results showed that the mean droplet radius decreased as the applied voltage increased or as the applied AC frequency increased. The whipping motion had been grown at the specified voltages due to the applied frequency.

Keywords

References

  1. Z. A. Huneiti, "Electrohydrodynamic atomisation of conducting liquid using an AC field superimposed on a DC field", Ph.D. thesis, Brunnel university, England, 2000, pp.1-45.
  2. M. C. Kim, "Generation of monodisperse droplets by using electrohydrodynamic force", Ph.D. thesis, KAIST, Korea, 2003, pp.1-55.
  3. 이상용, "액체의 미립화", 민음사, 1996, pp.31-108.
  4. W. Balachandran, W. Machowski, and C. N. Ahmad, "Electrostatic atomisation of conducting liquids using AC superimposed on DC fields", IEEE Trans, Ind. Appls., Vol. 30, No.4, 1994, pp.850-855. https://doi.org/10.1109/28.297899
  5. N. A. Efimov, V. A. Zvonov, and L. Y. Efimova, "Investigation of the effect of the nature of an applied voltage on the flow of benzine", Electron. Obrab. Math. USSR, Vol. 1, 1979, pp.45-47.
  6. M. Sato, M. Kiato, and T. Sakai, "Surface tension reduction under high potential by vibrating jet method", Kagaku Kogaku Ronbunshu, Vol. 3, 1977, pp.504-507. https://doi.org/10.1252/kakoronbunshu.3.504
  7. 성기안, "고전압 직류전기장에서 전기수력학적 분무유동 가시화에 고나한 연구", 한국액체미립화학회지, 제11권, 제3호, 2006, pp.131-139.
  8. K. Sung, and C. S. Lee, "Factors influencing liquid breakup in electrohydrodynamic atomization", J. of Applied Physics, Vol. 96, No.7, 2004, pp.3956-3961. https://doi.org/10.1063/1.1790062
  9. A. R. Jones, and K. C. Thong, "The production of charged monodisperse fuel droplets by electrical dispersion", J. Phys. D : Appl. Phys., Vol. 4, 1971, pp. 1159-1166. https://doi.org/10.1088/0022-3727/4/8/316
  10. WIkipedia Encyclopedia, "Ethanol physical properties", http://en.wikipedia.org/.
  11. Z. Huneiti, and and W. Balachandran, "Harmonic sprayingof conducting liquids employing AC-DC electric fields", IEEE Trans. Ind. Appls., Vol. 34, No.2, 1998, pp.279-285. https://doi.org/10.1109/28.663469
  12. 성기안, "교류 고전압을 이용한 대전액체의 전기수력학적 미립화에 관한 실험적 연구", 한국액체미립화학회지, 제13권, 제2호, 2008, pp.73-78.