Effect of inclined angle of fuel jet on NOx emission in high temperature air combustion

This paper investigates the effect of inclined angle of fuel jet on concentration of NO
_x
emission in high temperature air combustion furnace. Computational Fluid Dynamics (CFD) modeling was implemented to investigate the combustion process and NO
_x
formation in the furnace. The CFD model presented in this paper is validated by comparing the modeling results with measured data. The results show that the concentration of NO
_x
emission decreases by increasing the inclined angle of fuel jet. Besides, the concentration of NO
_x
emission drops with the decrease of oxygen concentration. Moreover, the effecting degree of inclined angle on NO
_x
formation increases with the increase of oxygen concentration.