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Difference of results of numerical simulation of pulverized coal fired furnace when mathematical models contain various radiation models has been described in paper. Two sets of numerical simulations of pulverized coal fired furnace of 210 MWe power boiler have been performed. One numerical simulation has contained Hottel’s zonal model, whereas the other numerical simulation has contained six-flux model. Other details of numerical simulations have been identical. The influence of radiation models has been examined through comparison of selected variables (gas-phase temperature, oxygen concentration, and absorbed radiative heat rate of surface zones of rear and right furnace walls), selected global parameters of furnace operation (total absorbed heat rate by all furnace walls and furnace exit gas-phase temperature). Computation time has been compared as well. Spatially distributed variables have been compared through maximal local differences and mean differences. Maximal local difference of gas-phase temperature has been 8.44%. Maximal local difference of absorbed radiative heat rate of the surface zones has been almost 80.0%. Difference of global parameters of furnace operation has been expressed in percents of value obtained by mathematical model containing Hottel’s zonal model and has not been bigger than 7.0%. Computation time for calculation of 1000 iterations has been approximately the same. Comparison with other radiation models is necessary for assessment of differences.
PAPER REVISED: 2011-10-03
PAPER ACCEPTED: 2011-10-08
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THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 1, PAGES [271 - 282]
  1. Modest, M. F., Radiative Heat Transfer, Academic Press, New York, USA, 2003
  2. Viskanta, R., Menguc, M. P., Radiation Heat Transfer in Combustion Systems, Progress in Energy and Combustion Science, 13 (1987), pp. 97-160
  3. Viskanta, R., Computation of Radiative Transfer in Combustion Systems, International Journal of Numerical Methods for Heat & Fluid Flow, 18 (2008), 3/4, pp. 415-442
  4. Mishra, S. C., Prasad, M., Radiative Heat Transfer in Participating Media-A Review, Sadhana, 23 (1998), pp. 213-232
  5. Selcuk, N., Exact Solutions for Radiative Heat Transfer in Box-Shaped Furnaces, ASME Journal of Heat Transfer, 107 (1985), pp. 648-655
  6. Menguc, M. P., Viskanta, R., Radiative Transfer in Three-Dimensional Rectangular Enclosures Containing Inhomogeneous, Anisotropically Scattering Media, Journal of Quantitative Spectroscopy & Radiative Transfer, 33 (1985), 6, pp. 533-549
  7. Liu, F., Numerical Solutions of Three-Dimensional Non-Grey Gas Radiative Transfer Using the Statistical Narrow-Band Model, ASME Journal of Heat Transfer, 121 (1999), pp. 200-203
  8. Coelho, P. J., Numerical Simulation of Radiative Heat Transfer from Non-Gray Gases in Three- Dimensional Enclosures, Journal of Quantitative Spectroscopy & Radiative Transfer, 74 (2002), pp. 307-328
  9. Wei, X. L., Xu, T. M., Hui, S. E., Three-Dimensional Radiation in Absorbing-Emitting-Scattering Medium Using the Discrete-Ordinates Approximation, Journal of Thermal Science, 7 (1998), 4, pp. 255-263
  10. Kim, S. H., Huh, K. Y., A New Angular Discretization Scheme of the Finite Volume Method for 3-D Radiative Heat Transfer in Absorbing, Emitting and Anisotropically Scattering Media, International Journal of Heat and Mass Transfer, 43 (2000), pp. 1233-1242
  11. Selcuk, N., Ayranci, I., The Method of Lines of the Discrete Ordinates Method for Radiative Heat Transfer in Enclosures Containing Scattering Media, Numerical Heat Transfer, Part B, 43 (2003), pp. 179-201
  12. Selcuk, N., Kirbas, G., The Method of Lines of the Discrete Ordinates Method for Radiative Heat Transfer in Enclosures Containing Scattering Media, Numerical Heat Transfer, Part B, 37 (2000), pp. 379-392
  13. Belosevic, S., et al., Three-Dimensional Modeling of Utility Boiler Pulverized Coal Tangentially Fired Furnace, International Journal of Heat and Mass Transfer, 49 (2006), pp. 3371-3378
  14. Sijercic, M., Belosevic, S., Stefanovic, P., Modeling of Pulverized Coal Combustion Stabiliation by means of Plasma Torches, Thermal Science, 9 (2005), 2, pp. 57-72
  15. Hottel, H. C., Cohen, E. S., Radiant Heat Exchange in a Gas-Filled Enclosure: Allowance of Nonuniformity of Gas Temperature, AIChE Journal, 4 (1958), pp. 3-14
  16. Hottel, H. C., Sarofim, A. F., Radiative Transfer, McGraw-Hill, New York, USA, 1967
  17. Rhine, J. M., Tucker, R. J., Modelling of Gas-Fired Furnaces and Boilers, British Gas plc, London, UK, 1991
  18. Mechi, R., et al., Extension of the Method to Inhomogenous Non-Gray Semi-Transparent Medium, Energy, 35 (2010), pp. 1-15
  19. Chu, C. M., Churchill, S. W., Numerical Solution of Problems in Multiple Scattering of Electromagnetic Radiation, The Journal of Physical Chemistry, 59 (1955), pp. 855-863
  20. Varma, S. A., Radiative Heat Transfer in a Pulverized-Coal Flame, in: Pulverized-Coal Combustion and Gasification, (Eds. L. D. Smoot, D. T. Pratt), Plenum Press, New York, 1979, pp. 83-106
  21. Smoot, L. D., Smith, P. J., Coal Combustion and Gasification, Plenum Press, New York, USA, 1985
  22. Gosman, A. D., Lockwood, F. C., Incorporation of a Flux Model for Radiation Into a Finite-Difference Procedure for Furnace Calculations, Proceedings, 14th Symposium (International) on Combustion, Penn., USA, 1972, pp. 661-670
  23. Miller, F. J., Koenigsdorff, R. W., Thermal Modeling of a Small-Particle Solar Central Receiver, ASME Journal of Solar Energy Engineering, 122 (2000), pp. 23-29
  24. Sijercic, M. Mathematical Modelling of Complex Turbulent Transport Processes, Yugoslav Association of Thermal Engineers and VINCA Institute of Nuclear Sciences, Belgrade, Serbia 1998 (in Serbian language)
  25. Seeker, W. R., et al., The Thermal Decomposition of Pulverized Coal Particles, Proceedings, 18th Symposium (International) on Combustion, Waterloo, Canada, 1980, pp. 1213-1226
  26. Blokh, A. G., Heat Transfer in Steam Boiler Furnaces, Hemisphere Publishing Corporation, New York, USA, 1988
  27. Crnomarkovic, N. D., Sijercic, M. A., Belosevic, S. V., Modelling of Radiative Heat Transfer inside the Pulverized Coal Fired Furnace of Power Plant, Proceedings, International Symposium Power Plants 2008, Vrnjacka Banja, Serbia, 2008, pp. 1-10
  28. Pavlovic, P., Riznic, J., Results of Thermal Measurements in the Furnace of the Power Plant Nikola Tesla No. 2, Report IBK-ITE-313, Institute of Nuclear Sciences Vinca, Belgrade, Serbia,
  29. 1977 (in Serbian language)
  30. Ivanovic, V. B., Reliable Simple Zonal Method of the Furnace Thermal Calculation, Thermal Science, 9 (2005), 2, pp. 45-55

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