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 of the Pollutant Formation and Spectral Radiation Properties in Ceramic Fiber Radiant Burner

세라믹 화이버 버너의 배기 배출물과 분광학적 특성에 관한 연구

  • Published : 2007.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

An experimental study was performed to investigate the effects of mixing quality, inlet pressure, nozzle diameter on CO, NO emission and radiation characteristics in porous ceramic fiber radiant burners. Observations of combustion characteristics occurring inside the burner system which was insulated fiber mat, were investigated by measuring emission and radiation characteristics. Combustion was achieved at the firing rate of $88{\sim}99\;kcal/hr$, inlet pressure of $100{\sim}250mmH_2O$. The fiber burner exhibit significant both spectral intensity peaks in the bands at $2.5{\mu}m\;and\;4.0{\mu}m$ relatively. There is a small difference in the variable mixing tube. However spectral intensity increased with the firing rate. CO emissions were found to be strongly dependent on the operating conditions. There was a tendency that CO concentration increased as the firing rate increases. the reason for rise of CO concentration is that is becomes it the relatively rich condition. Relatively low NO emission was observed for the whole operating range. The NO concentration is maximal at the firing rate of approximately 2850 kcal/hr and an air ratio of about 1.

Keywords

References

  1. Kawaguchi, O., Otoh, T., S., Todoroki, A. and Murayama, Y., 1990, 'Premixed Combustion in a Iber Mat,' Twenty-Third Symposium (International) on Combustion, the Combustion Institute, Pittsburgh, pp. 019-1024
  2. Weinberg, F. J., 1974, 'the First Half-Million Year of Combustion Research and Today'S Burning Problems', Fifteenth Symposium (International) on Combustion, the Combustion Institure, Pittsburgh, pp. 1-17
  3. Jugjai, S., Wongpanit, N., Laoketkan, T. and Nokkaew, S., 2002, 'the Combustion of Liquid Fuels Using A Porous Medium,' Experimental Thermal and Fluid Science 26, pp. 15-23 https://doi.org/10.1016/S0894-1777(02)00106-1
  4. Jugjai S. and Polmart N., 2003, 'Enhancement of Evaporation and Combustion of Liquid Fuels Through Porous Media,' Experimental Thermal and Fluid Science 27, pp. 901-909 https://doi.org/10.1016/S0894-1777(03)00062-1
  5. Mital, R., 1996, 'an Experimental and A Theoretical Investigation of Combustion and Heat Transfer Characteristics of Reticulated Ceramic Burners', Phd Thesis, School of Mechanical Engineering, Purdue University, West Lafayette. in
  6. Kulkarni, M. R., Chavali, K. P. and Peck, R. E, 1992, 'Emission Characteristics of Radiant Surface Burners,' Proceedings of the Western States Section of the Combustion Institute, October 12-13
  7. Sathe, S. B., Kulkarni, M. R., Peck, R. E. and Tong, T. W., 1990, 'an Experimental and Theoretical Study of Porous Radiant Burner Performance,' Twenty-Third Symposium (International) on Combustion, the Combustion Institute, Pittsburgh, pp. 1011-1018
  8. Kawaguchi, O., Otoh, T., Nakamura, S., Todoroki, A. and Murayama, Y., 1990, 'Premixed Combustion in A Fiber Mat,' Twenty-Third Symposium (International) on Combustion, the Combustion Institute, Pittsburgh, pp. 1019-1024
  9. Williams, A., Wooley, R. and Lawes, M., 1992, 'the Formation of Nox in Surface Burners,' Combustion and Flame, Vol. 89, pp. 157-166 https://doi.org/10.1016/0010-2180(92)90025-K
  10. Min, D. K. and Shin. H. D., 1991, 'Lamina Premixed Flame Stabilized Inside A Honeycomb Ceramic,' Int. J. Heat Mass Transfer, Vol. 34, No. 2, pp. 341-356 https://doi.org/10.1016/0017-9310(91)90255-D
  11. Echigo, R., Yochizawa, Y., Hanamura, K., and Tomimura, T. 1986, 'Analytical and Experimental Surdies on Radiative Propagation in Porous Media With Internal Heat Generation,' Proceedings, 8Th International Heat Transfer Conference, Vol. 2, pp. 827-832
  12. Fuse, T., Araki, Y., Kobayashi, N., and Hasatani, M., 2003, 'Combustion Characteristics in Oil-Vaporizing Sustained By Radiant Heat Reflux Enhanced With Higher Porous Ceramics,' Fuel 82, pp. 1411-1417 https://doi.org/10.1016/S0016-2361(03)00066-8
  13. Cutting, R.D. and Stewart, I. M., 1975, 'Furnace Temperature Profiles: Measurements By Spectroscopic Methods,' Appl. Opt., Vol. 14, pp. 2707-2711 https://doi.org/10.1364/AO.14.002707
  14. Leonardi, S. A., 2000, 'Partially-Premixed Comb-Ustion in Porous Radiant Burner,' Ph.D These, Purdue University
  15. Kulkarni, M. R., 1996, 'Radiant Surface Burner Performance: A Numerical and Experimental Study,' Ph.D Theses, Arizona State University
  16. Gore, J. P., and Faeth, G. M., 1986, 'Structure and Spectral Radiation Properties of Turbulent Ethylene/Air Diffusion Flames,' Twenty-First Symposium (International) on Combustion, the Combustion Institute, Pittsburgh, p. 1521