Browse > Article
http://dx.doi.org/10.5916/jkosme.2013.37.1.1

Characteristics of ignition and micro-explosion for droplets of water-in-fuel emulsion  

Jeung, Incheol (대한건설기계안전관리원)
Lee, Kyung-Hwan (순천대학교, 기계우주항공공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.1, 2013 , pp. 1-8 More about this Journal
Abstract
The water-in-fuel droplets were applied to investigate the effect of mixing ratio between water and decane, ambient temperature, droplet size and spacing between droplets on ignition and micro-explosion in a heated chamber with high temperature. The ignition temperature of droplet was found lower as the droplet size was increased and the contents of water was decreased. The life time of droplet, however, decreases as the contents of water increases due to the micro-explosion. The occurrence of micro-explosion also increases as the size of droplets and the ambient temperature increase. The flame spread speed gets faster as the contents of water and the number of suspender decreases.
Keywords
Water-in-fuel emulsion; Droplet; Ignition delay; Full combustion time; Micro-explosion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D. H. Cook and C. K. Law, "A preliminary study on the utilization of Water-in-Oil emulsion in diesel engines", Combustion Science and Technology, vol. 18, pp. 217-221, 1978.   DOI   ScienceOn
2 T. Tsukamoto and T. Niioka, "Dynamics of Heterogeneous combustion and reacting systems", Progress in Aeronautics and Astonautics, AIAA Inc., vol. 152, pp. 263-279, 1993.
3 T. Niioka, T. Mitani, and J. Sato, "Ignition characteristic of a Two-component condensed fuel in a Stagnation-point flow", Proceedings of the Twentieth International Symposium on Combustion, The Combustion Institute, pp. 1877-1882, 1984.
4 R. Nakanishi, H. Kobayashi, S. Kato, and T. Niioka, "Ignitiobn experiment of a fuel droplet in high-pressure high temperature ambient", Proceedings of the Twenty-fifth International Symposium on Combustion, The Combustion Institute, pp. 447-453, 1994.
5 S. Okajima and S. Kumagai, "Experimental studies on combustion of fuel droplets in flowing air under zero and higjh-gravity conditions", Proceedings of the Nineteenth International Symposium on Combustion, The Combustion Institute, pp. 1021-1027, 1982.
6 G. M. Faeth, D. P. Dominicis, J. F. Tulpinsky, and D. R. Olson, "Supercritical bipropellant droplet combustion", Proceedings of the Twelfth Symposium International on Combustion, The Combustion Institute, pp. 9-18, 1969.
7 I. C. Jeong, K. H. Lee, and J. S. Kim, "Characteristics of Auto-ignition and Micro-explosion for Array of Emulsion Droplets", Journal of Energy Engineering, vol. 16, no. 3, pp. 113-119, 2007.   과학기술학회마을
8 R. Reichenbach, D. Squires, and S.S. Penner, "Flame propagation in liquid-fuel droplet arrays", Proceedings of the Eighth International Symposium on Combustion, The Combustion Institute, pp. 1068-1073, 1962.
9 J. Park, H. D. Shin, H. Kobayashi, and T. Niioka, "An experimental study on flame spread in an one-dimensional droplet array", Transactions of the Korean Society of Mechanical Engineers B, vol. 23, No. 1, pp. 131-139, 1999 (in Korean).
10 J. Park, H. Kobayashi, and T. Niioka, "A study on blend effect of fuel in flame spread along an one-dimensional droplet array", Journal of the Korean Society of Combustion, vol. 3 no. 2 pp. 1-11, 1998 (in Korean).   과학기술학회마을
11 T. A. Brzustowaski, A. Sobiesiak, and S. Wojcicki, "Flame propagation along an array of liquid fuel droplets at zero gravity", Proceedings of the Eighteenth International Symposium on Combustion, The Combustion Institute, pp. 265-273, 1981.
12 H. Hanai, H. Watanabe, H. Kobayashi, and T. Niioka, "Ignition of droplet array exposed to high-temperature low-speed airflow", Proceedings of the 2nd Pan Pacific Basin Workshop on Microgravity Sciences, Paper CC-1131, pp. 1-11, 2001,
13 F. L. Dryer, "Water addition to practical combustion Systems-concepts and applications", Proceedings of the Sixteenth International Symposium on Combustion, pp. 279-295, 1977.
14 J. Park, H. D. Shin, H. Kobayashi, and T. Niioka, "Comparative study of lame spread behaviors in one dimensional droplet array under supercritical pressures of normal gravity and microgravity", Transactions of the Korean Society of Mechanical Engineers B, vol. 23, No. 1, pp. 140-148. 1999.