Anthracite combustion characteristics and NOx formation of a 300 MWe down-fired boiler with swirl burners at different loads after the implementation of a new combustion system
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- 作者：Zhichao Chen ; chenzc@hit.edu.cn ; Qingxiang Wang ; Bingnan Wang ; Lingyan Zeng ; Miaomiao Che ; Xin Zhang ; Zhengqi Li
- 关键词：Down-fired boiler ; Swirl burner ; Overfire air ; Load ; Pulverized coal combustion ; NOx emissions
- 刊名：Applied Energy
- 出版年：2017
- 出版时间：1 March 2017
- 年：2017
- 卷：189
- 期：Complete
- 页码：133-141
- 全文大小：511 K
- 卷排序：189
文摘
Combustion and NOx emissions of the boiler at different loads was investigated. The retrofitted coal/air flow could be all ignited in time at different loads. The fullness degree of coal flame in the furnace at different loads was different. The reheat steam reached the design temperature at middle and low loads after retrofit. NOx reduction of 40% at different loads was achieved with no negative effects.