Analysis of Combustion and Flame Propagation Characteristics of LPG and Gasoline Fuels by Laser Deflection Method

  • Lee, Ki-Hyung (Department of Mechanical Engineering, Hanyang University) ;
  • Lee, Chang-Sik (Department of Mechanical Engineering, Hanyang University) ;
  • Ryu, Jea-Duk (Graduate school of Hanyang University) ;
  • Park, Gyung-Min (Department of Mechanical Engineering, Osaka University)
  • Published : 2002.07.01

Abstract

This work is to investigate the combustion characteristics and flame propagation of the LPG (liquified petroleum gas) and gasoline fuel. In order to characterize the combustion processes of the fuels, the flame propagation and combustion characteristics were investigated by using a constant volume combustion chamber The flame propagation of both LPG and gasoline fuels was investigated by the laser deflection method and the high-speed Schlieren photography. The result of laser deflection method show that the error of measured flame propagation speed by laser method is less than 5% compared with the result of high-speed camera. The flame propagation speed of the fuel is increased with the decrease of initial pressure and the increase of initial temperature in the constant volume chamber. The results also show that the equivalence ratio has a grate effect on the flame speed, combustion pressure and the combustion duration of the fuel-air mixture.

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References

  1. Arcoumanis, C. and Bae, C-S, 1992, 'Correlation Between Spark Ignition Characteristics and Flame Development in a Constant Volume Combustion Chamber,' SAE Transaction, Journal of Engines, Vol. 101, Sec. 3, pp. 556-570 SAE 920413
  2. Bae, C-S, 1996, 'Flame Propagation Characteristics of Propane-air Premixed Mixtures,' Journal of the Korean Society of Combustion, Vol. 1, No. 2, pp. 21-29
  3. Cheong, D-S, Oh, S-M, Suh, S-W and Chang, Y-J, 1995, 'An Experimental Study of the Effect of Flame Propagation in a Constant-Volume Combustion Chamber,' Transaction of the Korea Society of Automotive Engineers, Vol. 3 No. 2, pp. 136-145
  4. Ting, D. S-K., Checkel, M. D., Haley, R. and Smy, P. R., 1994, 'Early Flame Acceration Measurements in a Turbulent Spark-Ignited Mixture,' SAE Transaction, SAE 940687
  5. Lim, J-K, Bae, M-H and Kim, C-I, 1992, 'A Study on the Soot Formation in the Constant Volume Premixed Combustion at the High-Pressure,' Journal of the Korean Society of Mechanical Engineers, Vol. 16, No. 3, pp. 589-597