Gas-particle flow and combustion in the near-burner zone of the swirl-stabilized pulverized coal burner

Combustion Science and Technology

Volumn 175, Issue 11, 2003, Pages 1979-2014

  Li, Zheng Qi ^a   Sun, Rui ^a   Wan, Zhi Xin ^a   Sun, Shao Zeng ^a   Wu, Shao Hua ^a   Chen, Li Zhe ^a  

^a HARBIN INSTITUTE OF TECHNOLOGY   (China)

Author keywords

Burner aerodynamics; Carbon in ash; Coal combustion; NOx

Indexed keywords

AERODYNAMICS; ANEMOMETERS; CARBON MONOXIDE; COAL ASH; COMMINUTION; GAS BURNERS; NITROGEN OXIDES; PARTICULATE EMISSIONS; REDUCTION;

RECIRCULATION ZONES; SECONDARY AIR (SA) RATIO; SLAGGING PROPENSITIES;

COAL COMBUSTION;

EID: 0345306303     PISSN: 00102202     EISSN: None     Source Type: Journal    
DOI: 10.1080/714923184     Document Type: Article

References (39)

1. x formation and reduction mechanisms in pulverized coal flames. Fuel, 73, 1423-1436.
2. Abbas, T., Costen, P., and Lockwood, F.C. (1991) The influence of near burner region aerodynamics on the formation and emission of nitrogen oxides in a pulverized coal-fired furnace. Combust. Flame, 91, 346-363.
3. Abbas, T., Costen, P., Lockwood, F.C., and Romo-Millares, C.A. (1993) The effect of particle size on NO formation in a large-scale pulverized coal-fired laboratory furnace: Measurements and modeling. Combust. Flame, 93, 316-326.
4. x emissions from coal boilers. Combust. Sci. Technol., 93, 41-45.
5. Asay, B.W., Smoot, L.D., and Hedman, P.O. (1983) Effect of coal moisture on burnout and nitrogen oxide formation. Combust. Sci. Technol., 35, 15-31.
6. Chen, S.L., Heap, N.P., Pershing, D.W., and Martin, G.W. (1982) Influence of coal composition on the fate of volatile and char nitrogen during combustion. Proc. Combust. Instit., 19, 1271-1280.
7. Costa, M., Costen, P., Lockwood, F.C., and Mahmud, T. (1990) Detailed measurements in and modelling of an industry-type pulverized-coal flame. Proc. Combust. Instit., 23, 973-980.
8. Fenimore, C.P. and Fraenkel, H.A. (1981) Formation and interconversion of fixed-nitrogen species in laminar diffusion flames. Proc. Combust. Instit., 18, 143-149.
9. Gody, S., Hassan, M.A., Ismail, M.A., and Lockword, F.C. (1991) Measurements of char burnout in a large scale laboratory combustor. Combust. Sci. Technol., 80, 137-150.
10. Hill, S.C., Smoot, L.D., and Smith, P.J. (1984) Reduction of nitrogen oxide formation in turbulent coal flames. Proc. Combust. Instit., 20, 1391-1400.
11. Kramlich, J.C., Randall, W., Gary, S., and Samuelsen, S. (1988) Observation of chemical effects accompanying pulverized coal thermal decomposition. Fuel, 67, 1182-1189.
12. Li, Z.Q. (1997) Study on Characteristics of Gas-Particle Two Phase Flows with Radial Bias Combustion Swirl Pulverized Coal Burners and Their Applications. Ph.D. Disseration, Harbin Institute of Technology, Harbin, P.R.O.C.
13. Li, Z.Q., Sun, R., Chen, L.Z., Wan, Z.X., Wu, S.H., and Qin, Y.K. (2002) Effect of primary air flow types on particle distributions in the near swirl burner region. Fuel, 81, 829-835.
14. Li, Z.Q., Wan, Z.X., Sun, R., Sun, S.Z., Chen, L.Z., Wu, S.H., and Qin, Y.K. (2002) Influence of division cone angles between fuel-rich and fuel-lean ducts on gas-particle flow and combustion near swirl burners. Energy, 27, 1119-1130.
15. x emission and burnout. Fuel, 73, 1447-1452.
16. 2-HCN-Ar flames at low pressure. Proc. Combust. Instit., 20, 673-684.
17. Nazzer, W.A., Pickett, L.M., and Tree, D.R. (1999) In-situ species, temperature and velocity measurements in a pulverized coal flame. Combust. Sci. Technol., 143, 63-77.
18. Okazaki, K., Shishido, H., Nishikawa, T., and Ohtake, K. (1984) Separation of the basic factors affecting NO formation in pulverized coal combustion. Proc. Combust. Instit., 20, 1381-1389.
19. x. Proc. Combust. Instit., 16, 389-399.
20. Pickett, L.M., Jackson, R.E., and Tree, D.R. (1999) LDA measurements in a pulverized coal flame at three swirl ratios. Combust. Sci. Technol., 143, 79-107.
21. Pohl, J.H. and Sarofim, A.F. (1976) Devolatilization and oxidation of coal nitrogen. Proc. Combust. Instit., 16, 491-501.
22. Ree, D.P., Smoot, L.D., and Hedman, P.O. (1981) Nitrogen oxide formation inside a laboratory pulverized coal combustor. Proc. Combust. Instit., 18, 1305-1311.
23. x formation and its basic interdependencies on pulverized coal flame characteristics. Combust. Sci. Technol., 93, 91-109.
24. Shen, D., Most, J.M., Joulain, P., and Bachman, J.S. (1994) The effect of initial conditions for swirl turbulent diffusion flame with a straight-exit burer. Combust. Sci. Technol., 100, 203-224.
25. Shi, R.X. and Chehroudi, B. (1994) Velocity characteristics of a confined highly turbulent swirling flow near a swirl plate. J. Fluids Eng., 116, 685-693.
26. Sloan, D.G., Smith, P.J., and Smoot, L.D. (1986) Modeling of swirl in turbulent flow systems. Prog. Energy Combust. Sci., 12, 163-250.
27. x emissions in a swirled coal flame by particle injection into the internal recirculation zone. Proc. Combust. Instit., 22, 1117-1125.
28. Smart, J.P. and Morgan, D.J. (1994) The effectiveness of multi-fuel reburning in an internally fuel-staged burner for NOx reduction. Fuel, 73, 1437-1442.
29. Smart, J.P., Morgan, D.J., and Roberts, P.A. (1992) The effect of scale on performance of swirl stabilized pulverized coal burners. Proc. Combust. Instit., 24, 1365-1372.
30. Sommerfeld, M. and Qiu, H.H. (1993) Characterization of particle laden, confined swirling flows by phase-Doppler anemometry and numerical calculation. Int. J. Multiphase Flow, 19, 1093-1127.
31. 2 in rich combustion. Proc. Combust. Instit., 18, 53-63.
32. Song, Y.H., Pohl, J.H., Beér, J.M., and Sarofim, A.F. (1982) Nitric oxide formation during pulverized coal combustion. Combust. Sci. Technol., 28, 31-39.
33. Truelove, J.S., Wall, T.F., Dixon, J.F., and Stewart, I.M.C. (1982) Flow, mixing and combustion within the quarl of a swirled, pulverized coal burner. Proc. Combust. Instit., 19, 1181-1187.
34. Weber, R. (1996) Scaling characteristics of aerodynamics, heat transfer, and pollutant emissions in industrial flames. Proc. Combust. Instit., 26, 3343-3354.
35. Weber, R. and Breussin, F. (1998) Scaling properties of swirling pulverized coal flames: from 180 kW to 50 MW thermal input. Proc. Combust. Instit., 27, 2957-2964.
36. Weber, R., Dugue, J., and Visser, B.M. (1992) Quarl zone flow field and chemistry of swirling pulverized coal flames: measurements and computations. Proc. Combust. Instit., 24, 1373-1380.
37. Weber, R., Visser, B.M., and Boysan, F. (1990) Assessment of turbulence modeling of engineering prediction of swirling vortices in the near burner zone. Int. J. Heat Fluid Flow, 11, 225-235.
38. x formation mechanisms under fuel rich and staged combustion conditions. Proc. Combust. Instit., 17, 77-87.
39. Xu, M.H., Yuan, J.W., Han, C.Y., and Zheng, C.G. (1995) Investigation of particle dynamics and pulverized coal combustion in a cavity bluff-body burner. Fuel, 74, 1913-1917.