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Modelling Radiative Heat Transfer in Pulverised Coal-Fired Furnaces

  • F. Liu
  • J. Swithenbank
Part of the EUROTHERM Seminars book series (EUROTHERM, volume 17)

Abstract

The Pi-approximation and δ-Eddington phase function approximation are employed to model the highly forward scattering of radiation in pulverised coal-fired furnaces. The effect of scattering on radiative heat transfer is clearly shown by the present version of the P1-approximation. The accuracy of the P1-approximation can be improved significantly by using an optimised boundary condition.

Keywords

Radiative Heat Transfer Radiative Transfer Equation Symmetry Factor Heat Flux Distribution Isotropic Scattering 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Viskanta R., Menguc, M. P.: Radiation Heat Transfer in Combustion Systems. Progress in Energy and Combustion Science 13 (1987) 97.CrossRefADSGoogle Scholar
  2. 2.
    Howell J. R.: Thermal Radiation in Participating Media: The Past, the Present, and Some Possible Futures. J. Heat Transfer 110 (1988) 1220–1229.CrossRefGoogle Scholar
  3. 3.
    Hottel H. C.; Sarofim A. F.: Radiative Transfer. MacGraw-Hill, New York (1967).Google Scholar
  4. 4.
    Siegel R., Howell J. R.: Thermal Radiation Heat Transfer. 2nd ed., Hemisphere, Washington, D. C. (1981).Google Scholar
  5. 5.
    Lockwood F. C., Shah N. G.: A New Radiation Solution Method for Incorporation in General Combustion Prediction Procedures. 18th Symp. (Int) on Combustion. The Combustion Institute, Pittsburgh, (1981) 1405–1414.Google Scholar
  6. 6.
    Menguc M. P., Viskanta R.: Radiative Transfer in Three-Dimensional Rectangular Geometries Containing Inhomogeneous, Anisotropic Scattering Media. J. Quant. Spectrosc. Radiat. Transfer. 33 (1985) 533–549.CrossRefADSGoogle Scholar
  7. 7.
    Menguc M. P., Viskanta R.: Radiative Transfer in Axisymmetric, Finite Cylindrical Enclosures. J. Heat Transfer 108 (1986) 271–276.CrossRefGoogle Scholar
  8. 8.
    Truelove J. S.: Three-Dimensional Radiation in Absorbing-Emitting-Scattering Media Using the Discrete-Ordinates Approximation. J. Quant. Spectrosc. Radiat. Transfer 39 (1988) 27–31.CrossRefADSGoogle Scholar
  9. 9.
    Joseph J. H., Wiscombe W. J., Weinman J. A. : The delta-Eddington Approximation for Radiative Flux Transfer. J. Atmospheric Science 33 (1976)2453–2459.Google Scholar
  10. 10.
    Crosbie A. L., Davison G. M.: Dirac-Delta Function Approximation to the Scattering Phase Function. J. Quant. Spectrosc. Radiat. Transfer. 33 (1985) 391–409.CrossRefADSGoogle Scholar
  11. 11.
    Case K. M., Zweifel P. F.: Linear Transport Theory. Addison-Wesley, Beading, Massachusetts (1967).Google Scholar
  12. 12.
    McKellar B., Box M. A.: The Scaling Group of the Radiative Transfer Equation. J. Astronspheric Sciences 38 (1981) 1063–1068.CrossRefADSMathSciNetGoogle Scholar
  13. 13.
    Boothroyd S. A., Jones A. R., Nicholson K. W., Wood W. : Light Scattering by Fly Ash and the Applicability of Mie Theory. Combustion and Flame 69 (1987)235–241.Google Scholar
  14. 14.
    Goodwin D. G., Mitchner M. : Flyash Radiative Properties and Effects on Radiative Heat Transfer in Coal-Fired Systems. Int. J. Heat Mass Transfer 32(1989)627–638.Google Scholar
  15. 15.
    Lee H., Buckius R. O.: Scaling Anisotropic Scattering in Radiation Heat Transfer for a Planar Medium. J. Heat Transfer 104 (1982) 69–75.CrossRefGoogle Scholar
  16. 16.
    Davison B.: Neutron Transport Theory. Clarendon, Oxford (1958).Google Scholar
  17. 17.
    Higenyi J., Bayazitoglu Y.: Differential Approximation of Radiative Heat Transfer in a Gray Medium. J. Heat Transfer 102 (1980) 719–723.CrossRefGoogle Scholar
  18. 18.
    Ratzel III A. C., Howell J. R.: Two-Dimensional Radiation in Absorbing-Emitting Media Using the P-N Approximation. J. Heat Transfer. 105 (1983) 333–340.CrossRefGoogle Scholar
  19. 19.
    Selcuk N.: Exact Solutions for Radiative Heat Transfer in Box-Shaped Furnaces. J. Heat Transfer 107 (1985) 648–655.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1991

Authors and Affiliations

  • F. Liu
    • 1
    • 2
  • J. Swithenbank
    • 1
    • 2
  1. 1.Department of Mechanical and Process EngineeringUniversity of SheffieldSheffieldEngland
  2. 2.Chemical Engineering and Fuel TechnologyUniversity of SheffieldEngland

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