A comparative study of gray and non-gray methods of computing gas absorption coefficients and its effect on the numberical predictions of oxy-fuel combustion

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Publication Type presentation
Program American Flame Research Committee (AFRC)
Author Wheaton, Zachary; Stroh, David; Krishnamoorthy, Gautham; Muhammad, Sami; Orsino, Stefano; Nakod, Pravin
Title A comparative study of gray and non-gray methods of computing gas absorption coefficients and its effect on the numberical predictions of oxy-fuel combustion
Description Computational Fluid Dynamics (CFD) simulations are performed to model the radiation process in natural gas fired furnaces using different gray and non-gray radiation models. Simulations of two representative furnace cases (HTAC and OXYFLAM) were performed and the computed radiative fluxes compared with measurements when available. The nearly homogeneous and isothermal conditions encountered within the furnace did not result in any significant differences in the predicted incident radiative flux profiles between the gray and non-gray models. However, differences between the gray and non-gray radiation calculations manifested itself through the temperature distributions away from the burner region.
Type Text
Publisher American Flame Research Committee (AFRC)
Language eng
Rights Management (c)American Flame Research Committee (AFRC)
Format Medium application/pdf
Format Extent 467,721 bytes
ARK ark:/87278/s6zw22d4
Setname ir_eua
Date Created 2012-10-23
Date Modified 2012-10-23
ID 213188
Reference URL https://collections.lib.utah.edu/ark:/87278/s6zw22d4
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