Studies of the Effect of a Coal Concentrator on NO Formation in Swirling Coal Combustion

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	Studies of the Effect of a Coal Concentrator on NO Formation in Swirling Coal Combustion
	Zhang Y(张宇); Zhou LX(周力行); Wei XL(魏小林); Sheng HZ(盛宏至)
刊名	International Journal of Heat and Mass Transfer
	2006
通讯作者邮箱	yuzhang@imech.ac.cn
卷号	49 期号:1-2 页码:421-426
ISSN号	0017-9310
通讯作者	Zhang, Y (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
中文摘要	To develop low-pollution burners, the effect of a coal concentrator on NO formation in swirling coal combustion is studied using both numerical simulation and experiments. The isothermal gas-particle two-phase velocities and particle concentration in a cold model of swirl burners with and without coal concentrators were measured using the phase Doppler particle anemometer (PDPA). A full two-fluid model of reacting gas-particle flows and coal combustion with an algebraic unified second-order moment (AUSM) turbulence-chemistry model for the turbulent reaction rate of NO formation are used to simulate swirling coal combustion and NO formation with different coal concentrators. The results give the turbulent kinetic energy, particle concentration, temperature and NO concentration in cases of with and without coal concentrators. The predicted results for cold two-phase flows are in good agreement with the PDPA measurement results, showing that the coal concentrator increases the turbulence and particle concentration in the recirculation zone. The combustion modeling results indicate that although the coal concentrator increases the turbulence and combustion temperature, but still can remarkably reduce the NO formation due to creating high coal concentration in the recirculation zone.
学科主题	力学
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Engineering ; Mechanics
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000235787600044
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17576]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Zhang Y,Zhou LX,Wei XL,et al. Studies of the Effect of a Coal Concentrator on NO Formation in Swirling Coal Combustion[J]. International Journal of Heat and Mass Transfer,2006,49(1-2):421-426.
APA	张宇,周力行,魏小林,&盛宏至.(2006).Studies of the Effect of a Coal Concentrator on NO Formation in Swirling Coal Combustion.International Journal of Heat and Mass Transfer,49(1-2),421-426.
MLA	张宇,et al."Studies of the Effect of a Coal Concentrator on NO Formation in Swirling Coal Combustion".International Journal of Heat and Mass Transfer 49.1-2(2006):421-426.