Experimental investigation into gas/particle flow in a down-fired 350 MWe supercritical utility boiler at different over-fire air ratios

	Experimental investigation into gas/particle flow in a down-fired 350 MWe supercritical utility boiler at different over-fire air ratios
	Liu C. L.; Li Z. Q.; Jing X. J.; Xie Y. Q.; Zhang Q. H.; Zong Q. D.
	2014
发表期刊	Energy
ISSN	ISBN/0360-5442
期号	64 页码:771-778
摘要	Gas/particle two-phase flow experiments at different over-fire air ratios were conducted using a 1:20 small-scale model of a down-fired 350 MWe superficial utility boiler designed with multiple injections and multiple staging combustion technology. The mean velocity, fluctuating velocity and particle volume flux were measured using particle dynamics anemometer measurements. None of four conditions of pulverized coal short-circuit occurred. When the over-fire air percentage was 1.9% and after the arch air flow reached the tertiary air, the position of maximum gas flow velocity of the arch secondary air and the maximum particle volume flux in the fuel-rich flow was close to and eroded the furnace hopper side wall. When the over-fire air percentage was increased to 9.6%, the position of maximum gas flow velocity of the arch secondary air and the maximum particle volume flux in the fuel-rich flow started to deviate from the hopper side wall but did not erode the furnace side wall. However, when the over-fire air percentage was 9.6%, the gas velocity of the arch air flow entering the furnace hopper was still high and the arch air flow downstream depth was too deep. Therefore, use of an over-fire air percentage greater than 19.1% was recommended. Published by Elsevier Ltd.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43981
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu C. L.,Li Z. Q.,Jing X. J.,et al. Experimental investigation into gas/particle flow in a down-fired 350 MWe supercritical utility boiler at different over-fire air ratios[J]. Energy,2014(64):771-778.
APA	Liu C. L.,Li Z. Q.,Jing X. J.,Xie Y. Q.,Zhang Q. H.,&Zong Q. D..(2014).Experimental investigation into gas/particle flow in a down-fired 350 MWe supercritical utility boiler at different over-fire air ratios.Energy(64),771-778.
MLA	Liu C. L.,et al."Experimental investigation into gas/particle flow in a down-fired 350 MWe supercritical utility boiler at different over-fire air ratios".Energy .64(2014):771-778.

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