Numerical and Experimental Study on the Effect of Over Fire Air on NOx Distribution in Furnace

[摘要] In this paper, a numerical investigation and experimental study was used to research the effect of a power plant 600MW supercritical four walls tangentially fired boiler furnace over fire air opening size on the inside furnace NOx concentration distribution and the results coincide. There are four cases in all. The influence and formation of NOx that was produced by pulverized coal furnace during combustion processes were analyzed. The research was proved that the over fire air has great effect on the concentration distribution of NOx in the furnance.

[发布机构] State Grid JiangXi Electric Power Research Institute, Nanchang, JiangxiProvince; 330096, China^1

[效力级别] 经济学

[关键词] Combustion pro-cess;Concentration distributions;Numerical and experimental study;Numerical investigations;Over fire airs;Pulverized coals;Supercritical;Tangentially-fired boilers