investigation on improvement of radial porous burners in comparison to conventional porous burners

in studies done on porous burner, generally burners with axial flow are considered. in this paper, porous burners with radial and axial flow have been modeled numerically and results of radial and axial porous burners with equal fuel consumptions are compared. the mechanism used in combustion phenomenon is 15 stage mechanisms which predict the pollutions production precisely. the results show a significant enhancement of the radial burner performance from viewpoint of temperature distribution, velocity distribution, amount of emissions, and thermal radiation efficiency. the co and no emissions are lower and the output radiative power in the radial burner is higher than those of the axial burner.