COMPARISON OF DIFFERENT RADIATIVE TRANSFER EQUATION APPROXIMATION IN MODELING OF POROUS RADIANT BURNER

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KHOSRAVY EL HOSSAINI M.; RAHIMYAR HERIS D.; DOROSTI Q.

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Journal: Modares Mechanical Engineering Year:2013 | Volume:12 | Issue:6 Page(s): 30-41

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Title

COMPARISON OF DIFFERENT RADIATIVE TRANSFER EQUATION APPROXIMATION IN MODELING OF POROUS RADIANT BURNER

Author(s)

KHOSRAVY EL HOSSAINI M. | RAHIMYAR HERIS D. | DOROSTI Q. | Issue Writer Certificate

Keywords

POROUS BURNERQ2

ONE-DIMENSIONAL SIMULATIONQ2

RADIATIVE HEAT TRANSFERQ2

EXACT SOLUTIONQ2

Abstract

Present work tries to determine proper approximation to calculate the thermal radiation flux divergence. The effect of errors on performance evaluation of porous radiant burners (PRB) is then examined. To do this, a single layer and a double layer of buried flame type of a porous radiant burner, are studied using 1-D numerical simulation. Due to the significant difference in the temperature of the solid matrix and the fluid passing the burner, a non-local thermal equilibrium condition in considered. Detailed kinetics of methane air mixture is used for combustion modeling. Since the effect of lateral walls is neglected here, the problem is solved in one-dimensional to explore an EXACT SOLUTION for RTE. Utilizing the discrete ordinate and the finite volume approximation of RTE, leads to the conclusion that eight directional spherical split is the best selection approximation in such problems. Lower ordinates have substantial deviation and increase the number of division enlarges computation cost with no considerable reduction in errors.Moreover, it is found that the two flux method and the Rosseland approximation are not valid for RTE modeling.

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APA: Copy

KHOSRAVY EL HOSSAINI, M., RAHIMYAR HERIS, D., & DOROSTI, Q.. (2013). COMPARISON OF DIFFERENT RADIATIVE TRANSFER EQUATION APPROXIMATION IN MODELING OF POROUS RADIANT BURNER. MODARES MECHANICAL ENGINEERING, 12(6), 30-41. SID. https://sid.ir/paper/178583/en

Vancouver: Copy

KHOSRAVY EL HOSSAINI M., RAHIMYAR HERIS D., DOROSTI Q.. COMPARISON OF DIFFERENT RADIATIVE TRANSFER EQUATION APPROXIMATION IN MODELING OF POROUS RADIANT BURNER. MODARES MECHANICAL ENGINEERING[Internet]. 2013;12(6):30-41. Available from: https://sid.ir/paper/178583/en

IEEE: Copy

M. KHOSRAVY EL HOSSAINI, D. RAHIMYAR HERIS, and Q. DOROSTI, “COMPARISON OF DIFFERENT RADIATIVE TRANSFER EQUATION APPROXIMATION IN MODELING OF POROUS RADIANT BURNER,” MODARES MECHANICAL ENGINEERING, vol. 12, no. 6, pp. 30–41, 2013, [Online]. Available: https://sid.ir/paper/178583/en

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