核电厂大型自然通风冷却塔对气载流出物扩散的影响

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3091 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To calculate the impact of large cooling towers and their wet heated plume on the atmospheric dispersion of airborne effluent, the impact simulation of a single cooling tower was conducted under operation and shut down conditions. The atmospheric dispersion of airborne effluent from different release heights at different relative locations was calculated by the k-ε model, and supported by a computational fluid dynamics model, STAR-CCM+. The results showed that when the release point was at a height of 10m and located on the windward side of a shut down cooling tower, the ground centerline dispersion factors downwind generally decreased to 1/3~1/2 compared with those in the absence of the cooling tower. In addition, when the release point was at a height of 75m, and located on the windward side of an operating cooling tower, the dispersion factors generally increased 1~2 times compared with those in the absence of the cooling tower. However, if the release point located on the leeward side of an operating cooling tower, the dispersion factors generally decreased to 1/2 compared with those in the absence of the cooling tower. When the cooling tower was shut down, the dispersion factors of 75m release height were higher than those without the cooling tower, regardless of the release point location was on the windward side or leeward side of the cooling tower. Compared with a shut down cooling tower, when the release point was at a height of 150m, and located on the windward side of an operating cooling tower, the wet heated plume increased the dispersion factors within approximately 800m downwind, but at the distance beyond 800m, the dispersion factors began to decrease.

Key words： CFD large natural draft cooling tower wet heated plume atmospheric dispersion inland nuclear power plant

Received: 07 November 2017

:	TL48
	X51

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Xuan
	DU Feng-lei
	WANG De-zhong
	WANG Yi-chuan
	WANG Bo

Cite this article:

WANG Xuan,DU Feng-lei,WANG De-zhong等. Impact of large natural draft cooling tower on atmospheric dispersion of airborne effluent from nuclear power plant[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(5): 1695-1703.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I5/1695

[1]	刘欢欢.关于内陆核电厂的几个安全问题--访中国工程院院士潘自强[J]. 世界环境, 2017,165:23-25.
[2]	Westinghouse Electric Company LLC. AP1000Design Control Document[R]. Revision 19, WEC, 2012.
[3]	乔清党,姚仁太,郭占杰,等.内陆核电厂冷却塔对周围大气流动和污染物扩散影响的风洞实验研究[J]. 辐射防护, 2011,31(3):141-149.
[4]	Dhunny A Z, Lollchund M R, Rughooputh S D. Wind energy evaluation for a highly complex terrain using Computational Fluid Dynamics (CFD)[J]. Renewable Energy, 2017,101:1-9.
[5]	Beatriz S, Jose L S, Alberto M, et al. Modelling NOx concentrations through CFD-RANS in an urban hot-spot using high resolution traffic emissions and meteorology from a mesoscale model[J]. Atmospheric Environment, 2017,163:155-165.
[6]	王博,栾海燕,吴晗,等.核电厂野外示踪试验的三维数值模拟研究[J]. 中国环境科学, 2016,36(10):2950-2956.
[7]	郭栋鹏,乔清党,姚仁太. k-ε(RNG)、LES模拟建筑物周围气流特征及湍流扩散的风洞试验验证[J]. 实验流体力学, 2011, 25:55-62.
[8]	王博,郭瑞萍,张琼,等.内陆核电厂冷却塔对大气扩散影响的CFD模拟[J]. 科技导报, 2013,31(32):34-41.
[9]	蔡旭晖,刘晓,康凌,等.冷却塔对大气扩散影响的数值模拟[J]. 北京大学学报(自然科学版), 2013,49(3):409-416.
[10]	郭栋鹏,姚仁太,乔清党,等.核电厂冷却塔水汽扩散影响因素的分析[J]. 空气动力学学报, 2011,29(2):240-247.
[11]	Robert N M. CFD prediction of cooling tower drift[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2006,94:463-490.
[12]	Robert N M. Protocol for CFD prediction of cooling-tower drift in an urban environment[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2008,96:1789-1804.
[13]	Consuegro A J, KaiserA S, Zamora B, et al. Numerical modeling of the drift and deposition of droplets emitted by mechanical cooling towers on buildings and its experimental validation[J]. Building and Environment, 2014,78:53-67.
[14]	Lucas M, Martínez P J, Ruiz J, et al. On the influence of psychrometric ambient conditions on cooling tower drift deposition[J]. International Journal of Heat and Mass Transfer, 2010,53:594-604.
[15]	Adam K, Micha? C, Ryszard B. 3D CFD modeling of natural draft wet-cooling tower with flue gas injection[J]. Applied Thermal Engineering, 2015,91:824-833.
[16]	Derksen D D, Bender T J, Bergstrom D J, et al. A study on the effects of wind on the air intake flow rate of a cooling tower:Part 1. Wind tunnel study[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1996,64:47-59.
[17]	核电厂厂址选址的大气弥散问题, HAD101/02[S]. 核安全导则汇编,北京:中国法制出版社, 2000:375-413.
[18]	Mohammadreza S, Parham A M, Mohammad N. Improvement of k-epsilon turbulence model for CFD simulation of atmospheric boundary layer around a high-rise building using stochastic optimization and Monte Carlo Sampling technique[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2017,171:366-379.
[19]	Rosemary S, Ben M, Nazar L, et al. Assessment of a simplified set of momentum closure relations for low volume fraction regimes in STAR-CCM+ and Open FOAM[J]. Annals of Nuclear Energy, 2017,110:79-87.
[20]	王乐,张云伟,顾兆林.动态风场及交通流量下街道峡谷内污染物扩散模拟[J]. 中国环境科学, 2012,32(12):2161-2167.
[21]	Siemens product lifecycle management software Inc. User Guide, STAR-CCM+ Documentation[R]. Version 12.04, 2017.
[22]	薛筝筝,郭建侠,汤志业,田东霞.基于CFD的单个建筑物风场模拟参数选择[J]. 气象科技, 2014,42:712-718.