A Study on H2−Air Counterflow Flames in Highly Preheated Air Diluted with CO2

摘要: Numerical simulation to grasp the flame structure and NO emissions in a H 2 -air counterflow diffusion diluted with CO2 is conducted for wide range of atmospheric air temperatures highly preheated temperatures. Special concern given important role chemical effects added CO2, especially temperature flames CO . There exists limit oxidizer-side below which cannot be sustained. It observed that intensely cases show extremely low emission levels. The reduce strength. also seen difference between maximum becomes smaller increasing mole fraction , this thus implies acquisition evenly distributed gas industrial furnaces. index increases as decreases increases. suppress emissions, mainly because reduction thermal NO. stressed reaction N + → CO, represented herein step (R283), relatively contributor prompt production.