coal combustion simulation
An axisymmetric, elliptic model has been developed for analysis of confined, turbulent coal-laden diffusion flames. The scheme is Eulerian for gases and Lagrangian for particles. The approach emphasizes the turbulent fluid mechanics of the mixing-limited gas phase reaction processes. The two-equation (k-─ e) turbulence model is used for closure. Particle drag and turbulent particle diffusion are also modeled. Gaseous combustion is modeled with a probability density function for the mixture fraction. Fluctuations in mixing of inlet streams and coal off-gas are considered. Coal pyrolysis and oxidation reaction processes are assumed to be slow with respect to the turbulent time scale. Particle and gas radiation are incorporated by a flux method. Predictions emphasize the importance of turbulent particle dispersion.
Original Publication Citation
Smith, P. J., T. H. Fletcher, and L. D. Smoot, "Model for Coal-Fired Reactors," Eighteenth Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, PA, p. 1285 (1980).
BYU ScholarsArchive Citation
Smith, Philip J.; Fletcher, Thomas H.; and Smoot, L. Douglas, "Model for Coal-Fired Reactors" (1981). Faculty Publications. 6088.
The Combustion Institute
Ira A. Fulton College of Engineering and Technology
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