Environmental Engineering Research

  • 제14권3호
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  • Pages.158-163
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  • 2009
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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NO Reduction and High Efficiency Combustion by Externally Oscillated Staging Burner

  • Lim, Mun-Sup (BK21 Team for Hydrogen Production.Department of Environmental Engineering, Chosun University) ;
  • Yang, Won (Manufacturing System Division Intelligent Industrial Machinery Team, Korea Institute of Industrial Technology) ;
  • Chun, Young-Nam (BK21 Team for Hydrogen Production.Department of Environmental Engineering, Chosun University)
  • 발행 : 2009.09.30
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초록

It is difficult for a burner to achieve an increase in combustibility and a reduction of NOx emission, simultaneously. The reason is because thermal NOx could be reduced at low temperature, while the combustibility should be decreased. To solve this problem, an externally oscillated staging burner was developed, and experiment was conducted according to effective parameters. The combustibility could be improved through the accelerated transfer of heat, mass and momentum obtained by external oscillation. Also, NO is reduced by the decrease of residence time of burning gas in the local highest-temperature spot, which is decreased by the external oscillation and fuel staging. Experiments on variables were conducted to determine the reference flame, and the flame generating the lowest NO concentration was selected. The conditions of reference flame were oscillation frequency 250 Hz, sound pressure 1 VPP, and air ratio 1.1, and NO and CO concentrations were 1ppm and 20 ppm, respectively.

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참고문헌

  1. Javier, M. B., Cesar, D., Norberto, F., Manuel, H., and Pedro, J. V., “Investigation of low-NOx strategies for natural gas combustion,” Fuel, 76, 435-446 (1997). https://doi.org/10.1016/S0016-2361(97)85521-4
  2. Hahn, W., Park, C. S., Kim, S. O., and Choi, S. I., “Characteristics of NOx reduction in pulverized coals combustion using drop tube furnace,” J. Ind. Eng. Chem., 9, 275-280 (2003). https://doi.org/10.1021/ie50087a015
  3. Turns, S. R., “Understanding NOx formation in nonpremixed flames: Experiments and modeling,” Pro. Energ. Combust., 21, 361-385 (1995). https://doi.org/10.1016/0360-1285(94)00006-9
  4. Douglas, D. and Ayo, O., “Combustion-acoustic stability analysis for premixed gas turbine combustors,” NASA Technical Memorandum 107024, AIAA-95-2470 (1995).
  5. Poppe, C., Sivasegaram, S., and Whitelaw, J. H., “Control of NOx emissions in confined flames by oscillations,” Combust. Flame, 113, 13-26 (1998). https://doi.org/10.1016/S0010-2180(97)00164-8
  6. Hardalupas, Y. and Sclbach, A., “Imposed oscillations and non-premixed flames,” Prog. Energ. Combust., 28, 75-104 (2002). https://doi.org/10.1016/S0360-1285(01)00010-7
  7. Delabroy, O., Haile, E., Lacas, F., Candel, S., Pollard, A., Sobiesiak, A., and Becker, H. A., “Passive and active control of NOx in industrial burners,” Exp. Therm. Fluid Sci., 16, 64-75 (1998). https://doi.org/10.1016/S0894-1777(97)10013-9
  8. Gutmark, E. J., Parr, T. P., Wilson, K. J., Yu, K. H., Smith, R. A., Hanson-Parr, D. M., and Schadow, K. C., “Compact waste incinerator based on vortex combustion,” Combust. Sci. Technol., 121, 333-349 (1996). https://doi.org/10.1080/00102209608935602