Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Soot Particle Measurement in Co-Flow Diffusion Flame Using a Laser Diagnostics and a Thermocouple

레이저 및 열전대를 이용한 동축류 확산화염에서의 매연입자 측정에 관한 연구

  • Published : 2004.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

The temperature and soot particle measurement technique in a laminar diffusion flame has been studied to investigate the characteristics of soot particle with temperature using a co-flow burner. The temperature distribution in the flame were measured by rapid insertion of a R-type thermocouple and the soot particles by LEM/LIS techniques. In these measurement, soot volume fraction, number density and soot diameters were analyzed experimentally. As a results, the spacial distributions of particle volume fraction, soot diameter, and number density are mapped throughout the flame using the Rayleigh theory for the scattering of light by particles. A laser extinction method was used to measure the soot volume fraction and laser induced scattering method was used to measure the soot particle diameter and number density. Also, we measured temperature without the effect of soot particles attached to the thermocouple junction, which is close to the nozzle. In this result, we found that upstream zone has a unstable flowing in co-flow diffusion flame and the y-axis temperature of flame has a uniform temperature distribution in the most soot volume fraction zone.

Keywords

References

  1. Gulder, O. L., 1992, 'Soot Formation in Laminar Diffusion Flames at Elevated Temperatures,' Combust, Flame, Vol. 88, No. 1, pp. 74-82 https://doi.org/10.1016/0010-2180(92)90008-D
  2. Hura, H. S. and Glassman, I., 1987, 'Fuel Oxygen Effects on Soot Formation in Counterflow Diffusion Flames,' Combustion Science and Technology, Vol. 53, pp. 1-21 https://doi.org/10.1080/00102208708947016
  3. Hura, H. S. and Glassman, I., 1988, 'Soot Formation in Diffusion Flames of Fuel/Oxygen Mixtures,' Twenty-Second Symposium on Combustion, The Combustion Institude, Pittsburgh, pp. 371-378
  4. Santoro, R. J. T. T., Horivath, J. JJ. and Semrjian, H. G., 1984, Combustion Science and Technology, Vol. 53, pp. 89-115 https://doi.org/10.1080/00102208708947022
  5. Kent, J. H. AND Wagner, H. Gg., 1984, Combustion Science and Technology, Vol. 41, p. 245 https://doi.org/10.1080/00102208408923834
  6. Mcnealy, Charles S., Umit O. Koylu, Pfefferle, Lisa D. and Rosner, Daniel E., 1997, Combustion and Flame, Vol. 109, No. 4, pp. 701-720 https://doi.org/10.1016/S0010-2180(97)00054-0
  7. Lee, G. W., Jung, Y. R and Jurng, J. S., 1999, 'Temperature Measurement in Concentric Diffusion Flames by Rapid Insertion Technique,' Kosco symposium, Vol. 4, No. 2, pp. 75-83
  8. Dobbins, R. A., Santoro, R. J. and Semerjian, H. G., 1984 'Soot Particle Measurement in Diffusion Flames,' Combustion and Flame, Vol. 92, pp. 208-237
  9. Haynes, B. S. and Wagner, H. Gg., 1981, 'Soot Formation,' Prog. Energy Combustion. Sci., Vol. 7, pp. 229-273 https://doi.org/10.1016/0360-1285(81)90001-0
  10. Smith, O. I., 1981, 'Fundamentals of Soot Formation in Flames with Application to Diesel Engine Particle Emission,' Prog. Energy Combust, Sci., Vol. 7, pp. 275-291 https://doi.org/10.1016/0360-1285(81)90002-2
  11. Lee, W. N., Song, Y. H. and Cha, M. S., 1997, 'OH Radical Distribution and Sooting Characteristics in Co-Flow Diffusion Flames,' 15th Kosco Symposium, pp. 1-11
  12. Rosner, D. E., 1986, 'Transport Processes in Chemically Reacting Flow Systems,' Butterworths
  13. Holman, J. P., 1990, Heat Transfer, McGraw-Hill
  14. Park, J. C., Kang, K. H. and Park, C. P., 1985, Temperature, Korea Research Institute of Standards and Science, pp. 105-208
  15. Dobins, R. A., Santoro, R. J. and Semerjian, H. G., 1984, 'Soot Particle Measurement in Diffusion Flames,' Combustion and Flame, Vol. 92, pp. 208-237 https://doi.org/10.1016/0010-2180(83)90099-8
  16. Haynes, H. S. and Wagner, H. G., 1981, Progress in Energy and Combustion Science, Vol. 7, pp. 209-273 https://doi.org/10.1016/0360-1285(81)90001-0
  17. Santoro, R. J., Semerjian, H. G. and Dobbins, R. A., 1983, 'Soot Particle Measurement in Diffusion Flames,' Combustion and Flame, Vol. 51, pp. 203-218 https://doi.org/10.1016/0010-2180(83)90099-8