Browse > Article
http://dx.doi.org/10.3795/KSME-B.2012.36.4.413

Combustion Characteristics of a VIStA Burner Dividing Flame in a Once-Through Type Boiler  

Ahn, Joon (School of Mechanical Engineering, Kookmin Univ.)
Kim, Hyouck-Ju (Korea Institute of Energy Research)
Choi, Kyu-Sung (Korea Institute of Energy Research)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.4, 2012 , pp. 413-418 More about this Journal
Abstract
A modified VIStA (Vortex Inertial Staged Air) burner has been developed and applied to a once-through type boiler. The secondary air is supplied through a swirler instead of nozzles, which stabilizes the flame and reduces carbon monoxide (CO) emissions. However, the modification increases the emission of nitrogen oxides (NOx). To balance emissions of the two pollutants, a divided flame was adopted. An air damper was installed to control the distribution of air to each combustion chamber, and three types of flame dividers were studied. The effects of the air-fuel ratio and combustion load on the NOx formation were investigated. The divided flame was found to reduce the NOx emission up to 25%, while keeping the CO to less than 10 ppm.
Keywords
Low NOx Combustion; Boiler; Burner;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Ahn, J., Kim, H. J. and Choi, K. S., 2010, "Combustion Characteristics of a VIStA Burner in an Once-Through Type Boiler," Trans. of the KSME B 34(5), pp. 547-552.   과학기술학회마을   DOI   ScienceOn
2 Ahn, J., Kim, H. J. and Choi, K. S., 2008, "Premixed VIStA Burner for an Once-Through Type Boiler," Proc. SAREK 2008 Winter Annual Meeting, pp. 1013-1018.   과학기술학회마을
3 Ahn, J., Kim, J. J. and Kang, S. B., 2009, "Combustion Characteristics of a Staged Burner for a Boiler," Trans. KSME B 33(10), pp. 767-772.   과학기술학회마을   DOI   ScienceOn
4 Kim, H. S., Ahn, K. Y., Baek, S. W. and Yu, M. J., 2001, "Investigation of NO Formation Characteristics in Multi Staged Air Combustor," Trans. KSME B 25(11), pp. 1594-1605.   과학기술학회마을
5 McClaine A. W., 2000, "Low NOx Burner Development Program," U.S. DOE Report, DOE/ID/13470-16.
6 Kim, H. J., 2008, "High Efficiency VIStA/Catalytic Burner Development," KEMCO Final Report.
7 Kim, J. H., Lee, H. Y., Hwang, C. H. and Lee, C. E., 2008, "NOx and CO Emission Characteristics of Premixed Oxidizer-staging Combustor Using a Cyclone Flow," Trans. KOSCO 13(2), pp. 7-13.   과학기술학회마을