โ Scribed by Minghou Xu; Yaoguo Fan; Jianwei Yuan; Changdong Sheng; Hong Yao
No coin nor oath required. For personal study only.
Staged combustion has been accepted as an e!ective way to reduce NO V emission. Based on the comparison of calculated results using Miller and Bowman's (1989, Progr. Energy Combust. Sci. 15, 287) detailed elementary reaction model with experimental data, it is found e!ective to apply this model in the simulation of NO formation and destruction during staged combustion. Sensitivity analysis shows that C, CH, CH and HCCO play an important role in NO destruction and reduction under fuel staging. NO generated in the primary zone can be reduced greatly by staged combustion. Besides the air}fuel ratio in the primary combustion zone, the combustion temperature in the reburning zone and the mass factor of the reburning fuel in the overall fuel, the main factors which a!ect NO destruction and reduction are the position where reburning is introduced and the types of reburning fuel. It is found that reburning cannot be introduced too close to the primary combustion zone. The reburning fuels that can e!ectively stimulate NO to HCN are H and C H .
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