Combustion air systems are an important aspect of any combustion system. With the complexity of modern combustion systems, numerical modeling has become a valuable tool for design and analysis. Two examples of the use of numerical modeling for combustion air systems on pulverized coal utility boilers are presented: first, a combustion analysis to evaluate air system design on combustion performance, and second, the design of a secondary air system windbox. These examples demonstrate the usefulness and value of modeling as a design and analysis tool.

1.
Fiveland, W.A., 1996, “Combustion Modeling for Fossil-Fired Applications,” 1996 National Heat Transfer Conference, Houston, TX, August 3-6.
2.
Steam — Its Generation and Use, 41th Edition, Chapter 6: Numerical Modeling for Fluid Flow, Heat Transfer, and Combustion, 2005, The Babcock & Wilcox Company, Ed. S.C. Stultz and J.B. Kitto.
3.
Patankar, S.V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere Publishing Corporation, New York.
4.
Launder, B.E., and Spalding, D.B., 1974, “The Numerical Computation of Turbulent Flows,” Computer Methods in Applied Mechanics and Engineering, 3.
5.
Milojevic
D.
,
1990
, “
Lagrangian Stochastic-Deterministic (LSD) Predictions of Particle Dispersion in Turbulence
,”
Journal of Particles and Particle Systems Characterization
,
7
, pp.
181
190
.
6.
Magnussen, B. F. and Hjertager, B. H., 1976, “On Mathematical Modeling of Turbulent Combustion,” 16th Symposium (International) on Combustion, The Combustion Institute, Pittsburgh.
7.
Magnussen, B. F., 1981, “On the Structure of Turbulence and the Generalized Eddy Dissipation concept for Turbulent Reactive Flows,” Proceedings of the 19th American Institute of Aeronautics and Astronautics Aerospace Science Meeting, St. Louis, MO.
8.
Ubhayakar, S.K., Stickler, D.B., Von Rosenberg, C.W., et al., 1975, “Rapid Devolatilization of Pulverized Coal in Hot Combustion Gases,” 16th Symposium (International) on Combustion, The CombustionInstitute, Pittsburgh.
9.
Grant
D. M.
,
Pugmire
R. J.
,
Fletcher
T. H.
, et al.,
1989
, “
A Chemical Model of Coal Devolatilization Using Percolation Lattice Statistics
,”
Energy and Fuels
, Vol.
3
, p.
175
175
.
10.
Fletcher, T. H., Kerstein, A. R., Pugmire, R. J., et al., 1992, “A Chemical Percolation Model for Devolatilization: Milestone Report,” Sandia report SAND92-8207, available National Technical Information Service, May.
11.
Perry, S., 1999, “A Global Free-Radical Mechanism for Nitrogen Release During Devolatilization Based on Coal Chemical Structure,” Ph.D. dissertation for the Department of Chemical Engineering, Brigham Young University, Provo, Utah, United States.
12.
Field, M.A., Grill, D.W., Morgan, B.B., et al., 1967, Combustion of Pulverized Coal, The British Coal Utilization Research Association, Leatherhead, Surrey, England, United Kingdom.
13.
Hurt
R.
,
Sun
J. K.
,
Lunden
L.
,
1998
, “
A Kinetic Model of Carbon Burnout in Pulverized Coal Combustion
,”
Combustion and Flame
, Vol.
113
, pp.
181
197
.
14.
Fiveland
W. A.
,
1984
, “
Discrete-ordinates solutions of the radiative transport equations for rectangular enclosures
,”
Transactions of American Society of Mechanical Engineers Journal of Heat Transfer
,
106
, pp.
699
706
.
15.
Fiveland, W. A., and Jessee, J. P., 1994, “Comparison of Discrete Ordinates Formulations for Radiative heat Transfer in Multidimensional Geometries,” Journal of Thermophysics and Heat Transfer, Vol. 9, No. 1, Jan-Mar.
16.
Fiveland, W. A., and Jessee, J. P., 1994, “Mathematical Modeling of Pulverized Coal Combustoin in Axisymmetric Geometries,” 1994 Joint EPRI/ASME Power Generation Conference, Phoenix, AZ.
17.
Fiveland, W. A., Jessee, J. P., and Kaufman, K. C., 1996, “Validation of an Industrial Flow and Combustion Model,” National Heat Transfer Conference, Houston, TX.
This content is only available via PDF.
You do not currently have access to this content.