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http://dx.doi.org/10.5139/JKSAS.2003.31.7.085

Vaporization of Hydrocarbon Fuel Droplet in Supercritical Environments  

Lee,Gyeong-Jae (한국항공대학교 대학원)
Lee,Bong-Su (한국항공대학교 대학원)
Kim,Jong-Hyeon (경원전문대학 자동차학과)
Gu,Ja-Ye (한국항공대학교 항공우주및기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.7, 2003 , pp. 85-93 More about this Journal
Abstract
Droplet vaporization at various ambient pressures is studied numerically by formulating one dimensional evaporation model in the mixture of hydrocarbon fuel and air. The ambient pressure ranged from atmospheric conditions to the supercritical conditions. The modified Soave-Redlich-Kwong state equation is used to account for the real gas effects in the high pressure condition. Non-ideal thermodynamic and transport properties at near critical and supercritical conditions are considered. Some computational results are compared with Sato's experimental data for the validation of calculations. The comparison between predictions and experiments showed quite a good agreement. The droplet lifetime increases with increasing pressure at temperature lower than the critical temperature, however, it decreases with increasing pressure at temperature higher than the critical temperature. The solubility of nitrogen can not be neglected in the high pressure and it becomes higher as the temperature and the pressure go up.
Keywords
droplet vaporization; real gas effects; equation of state; droplet lifetime;
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1 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 10.35, 2001.
2 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 11.10, 2001.
3 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 11.15, 2001.
4 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 11.21, 2001.
5 Nomura, H., Ujiie, Y., Rath, H.J., Sato, J., and Kono,, "Experimental Study on High-pressure Droplet Evaporation Using Microgravity Conditions," Twenty-Sixth Symposium (international) on Combustion/The Combustion Institute, 1996, pp. 1267-1273.
6 Nomura, H., Ujiie, Y., Sato, J., Rath, H.J., and Kono, M., "Experimental Study on Evaporation Behavior of a Hydrocarbon Droplet in Sub- and Supercritical Atmospheres," Eighth International Conference on Liquid Atomiztion and Spray Systems, Pasadena., CA, USA , 2000.
7 Morin, C, Chauveau, C, and Gokalp, I., "Vaporiztion of n-Alkane Droplets at High Temperature and Pressure," Eighth International Conference on Liquid Atomiztion and Spray Systems, Pasadena, CA, USA, 2000.
8 Hsieh, K. C, Shuen, J. S., and Yang, V., "Droplet Vaporization in High Pressures Environments, I: Near-Critical Conditions," Combustion Science and Technology, Vol. 97, pp. 111-132, 1991.
9 Megaridis, C. M, and Sirignano, W.A., "Multi-component Droplet Vaporization in Laminar Convection Environment", Combust. Sci. and Tech. Vol. 87, pp. 27-44, 1992.   DOI
10 Shuen, J. S., Yang, V., and Hsiao, C. C, "Combustion of Liquid-Fuel Droplets in Supercritical Conditions," Combustion and Flame, Vol.89, pp.299-319, 1992.   DOI   ScienceOn
11 Zhu, G. S. and Aggarwal, S. K., "Transient Supercritical Droplet Evaporation with Emphasis on the Effects of Equation of State," International Journal of Heat and Mass Transfer, Vol. 43 pp. 1157-1171 , 2000.   DOI   ScienceOn
12 Perry, R. H., Chilton, C. H. Chemical Engineers' Handbook. Mac Graw Hill, New York, fifth edition, 1973.
13 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 9.21, 2001.
14 Reid, R. C, Prausnitz, J. M., and Sherwood, T. K., The Properties of Gases and Liquids, 3rd edition, MacGraw-Hill, pp. 431-432, 1977.
15 Polling, B. E., Prausnitz, J. M., and O'connell, J. P., The Properties of Gases and Liquids, 5th edition, MacGraw-Hill, pp. 10.3, 2001.