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NO Reduction and High Efficiency Combustion by Externally Oscillated Staging Burner
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  • Journal title : Environmental Engineering Research
  • Volume 14, Issue 3,  2009, pp.158-163
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2009.14.3.158
 Title & Authors
NO Reduction and High Efficiency Combustion by Externally Oscillated Staging Burner
Lim, Mun-Sup; Yang, Won; Chun, Young-Nam;
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 Abstract
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.
 Keywords
External oscillation;Gas burner;NO;Fuel staging;Combustibility;
 Language
English
 Cited by
1.
RPF 가스화 가스 외부가진 적용 단계적연소 NOx 저감특성,김은혁;전영남;

한국폐기물자원순환학회지, 2015. vol.32. 5, pp.436-443 crossref(new window)
 References
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). crossref(new window)

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). crossref(new window)

3.
Turns, S. R., “Understanding NOx formation in nonpremixed flames: Experiments and modeling,” Pro. Energ. Combust., 21, 361-385 (1995). crossref(new window)

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). crossref(new window)

6.
Hardalupas, Y. and Sclbach, A., “Imposed oscillations and non-premixed flames,” Prog. Energ. Combust., 28, 75-104 (2002). crossref(new window)

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). crossref(new window)

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). crossref(new window)