NUMERICAL SIMULATIONS OF COMBUSTION CHARACTERISTICS AND NOX EMISSIONS FOR TWO CONFIGURATIONS OF SWIRL COAL BURNERS IN A 300 MWe WALL-FIRED BOILER

被引：14

作者：

Li, Zhengqi ^{[1
]}

Zeng, Lingyan ^{[1
]}

Zhao, Guangbo ^{[1
]}

Li, Jing ^{[1
]}

Shen, Shanping ^{[1
]}

Zhang, Fucheng ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2011年 / 60卷 / 05期

关键词：

GAS/PARTICLE FLOW CHARACTERISTICS; OUTER SECONDARY AIR; HEAT-TRANSFER; NITROGEN; SULFUR; MODEL;

D O I：

10.1080/10407782.2011.600618

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We studied both experimentally and numerically the pulverized-coal combustion process and NOx emissions in a 300 MWe wall-fired boiler burning bituminous coal. In simulations of an enhanced ignition-dual register (EI-DR) burner arrangement, results gave values of 6.39% and 861.43 mg/m(3) at 6% O-2 for combustible material content in the fly ash and NOx concentration at the furnace outlet, respectively. Meanwhile, simulations with a centrally fuel rich (CFR) swirl burner arrangement gave similar results of 3.63% and 695.36 mg/m(3) at 6% O-2. Comparing the two, the NOx concentration of the latter had decreased by 19.28%.

引用

页码：441 / 460

页数：20

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