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http://dx.doi.org/10.3795/KSME-B.2003.27.1.032

An Experiment on Low NOx Combustion Characteristics in a Multi-Staged Burner  

Cho, Eun-Seong (서울대학교 대학원 기계항공공학부)
Sung, Yong-Jin (서울대학교 대학원 기계항공공학부)
Chung, Suk-Ho (서울대학교 기계항공공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.27, no.1, 2003 , pp. 32-38 More about this Journal
Abstract
Staged combustion, such as air- and fuel-staging, is a relatively well-known technique fur reduction of NOx emission and used in combination with other techniques nowadays. However, the design variables are still selected depending upon operating conditions. There are many variables tested to investigate the NOx emission characteristics fur changing of fuel or air velocity, swirl intensity, and staging ratio of air and fuel in multi-staged burner. In air-staging case, the fuel-rich condition of the primary combustion zone is very helpful to reduce NOx emission and its range is known to be restricted by the increase of carbon monoxide. However, in many cases carbon monoxide level is not too high to be restricted operating condition. So we tried to expand the equivalence ratio range to the richer condition in the primary combustion zone and certificate the function of each burner component and its contribution to the overall NOx production.
Keywords
Low NOx Burner; Multi-staged Burner; Air-staging; Fuel-staging; PLIF;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Miller, J. A. and Bawman, C. T., 1989, 'Mechnism and Modeling of Mitrogen Chemistry in Combustion,' Prog. Energy Combust. Sci., Vol. 15, pp. 287-338   DOI   ScienceOn
2 Ann, K. Y., Kim, H. S., Cho, E. S., Ahn, J. H. and Kim, Y. M., 1999, 'An Experimental Study on Combustion Processes and NOx Emission Characteristics of the Air-Staged Burner,' KSME Int. J., Vol. 13, No. 6, pp. 477-486   DOI
3 Xu, M., Fan, Y., Yuan, J., Sheng, C. and Yao, H., 1999, 'Modeling NOx Emissions during Staged Combustion,' Int. J. Energy. Res., Vol. 23, pp. 683-693   DOI   ScienceOn
4 Bowman, C. T., 1992, 'Control of Combustion Generated Mitrogen Oxide Emissions : Technology Driven by Regulation,' Proc. Combust. Inst., Vol. 24, pp. 859-878   DOI   ScienceOn
5 Turns, S. R., 1995, 'Understanding Nox Formation in Nonpremixed Flames: Experiments And Modeling' Prog. Energy Combust. Sci., Vol. 21, pp. 361-385   DOI   ScienceOn
6 Sung, Y. J., Cho, E. S. and Chung,S. H., 2001, ''An Experimental Study on $NO_x$ Characteristics in Air-Staging Burner,''KSME Autumn Conference Proceeding B, pp. 167-171   과학기술학회마을
7 Turns, S. R., 2000, An Introduction to Combustion 2nd Edition, McGraw-Hill, New York
8 Chen, R. and Driscoll, J. F., 1990, 'Nitric Oxide Levels of Jet Diffusion Flames: Effects of Coaxial Air and Other Mixing Parameters,' Proc. Combust. Inst., Vol. 23, pp. 281-288
9 Feikeman, D., Chen. R. and Driscoll, J. F., 1990, 'Enhancement of Flame Blowout Limits by the Use of Swirl,' Combust. Flame, Vol. 80, pp. 183-195   DOI   ScienceOn