Radiative Heat Transfer in a Pulverized-Coal Flame

  • Sneh Anjali Varma

Abstract

As early as the 1920s, it was recognized that thermal radiation is a significant mode of heat transfer in an industrial furnace. In 1925, Wohlenberg and Marrow(1) presented a simple, yet comprehensive analysis of radiation in a pulverized-coal-fired furnace. Their heat-transfer model consisted of energy transfer between gaseous and solid particle constituents of the pulverized-coal flame and refractory wall and cold tubes carrying water or steam. In addition, a correction term was included for convective heat transfer between furnace walls, cold surfaces, and the moving high-temperature gases along these surfaces. Their work was expanded in a paper by Wohlenberg and Lindseth,(2) in which comparison was made among various operating variables in stocker-fired and pulverized-coal-fired furnaces. In the above-mentioned work, the approach was somewhat empirical, and the results could only be applied to particular types of tested furnaces and coals.

Keywords

Heat Transfer Radiative Transfer Radiative Transfer Equation Char Particle Total Scattering Cross Section 
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Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • Sneh Anjali Varma
    • 1
  1. 1.Department of Mechanical and Industrial EngineeringUniversity of UtahSalt Lake CityUSA

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