CFD技术与SACTI模型在自然通风冷却塔雾羽局地环境影响模拟中的应用比较研究

辐射防护 ›› 2017, Vol. 37 ›› Issue (1): 18-26.

CFD技术与SACTI模型在自然通风冷却塔雾羽局地环境影响模拟中的应用比较研究

史学峰¹, 郭栋鹏², 姚仁太¹, 胡继民¹

1.中国辐射防护研究院,太原 030006;
2.太原科技大学环境科学与工程系,太原 030024

收稿日期:2016-08-10 出版日期:2017-01-20 发布日期:2021-11-11
通讯作者: 郭栋鹏。E-mail:guodongpeng001@163.com
作者简介:史学峰(1979—)男, 2002年毕业于太原理工大学环境工程专业,副研究员。E-mail: 921423@qq.com
基金资助:
山西省自然科学基金(项目编号:2015011055),太原科技大学博士基金(项目编号:20122008)。

Comparative study on the application of CFD technology and SACTI model in local environmental impact simulation of natural ventilation cooling tower fog plume

Shi Xuefeng¹, Guo Dongpeng², Yao Rentai¹, Hu Jimin¹

1. China Institute for Radiation Protection, Taiyuan 030006;
2. Department of Environmental Science and Engineering,Taiyuan University of Science and Technology, Taiyuan 030024

Received:2016-08-10 Online:2017-01-20 Published:2021-11-11

摘要/Abstract

摘要： 本文利用CFD技术和SACTI模型对山东某电厂冷却塔附近流场以及冷却塔雾羽抬升以及漂滴与盐的沉积对局地环境影响进行了模拟计算,并与现场试验结果进行对比分析验证。结果表明,二者模拟结果与现场试验数据基本吻合, SACTI模型预测漂滴与盐沉积的最大距离出现在冷却塔附近200 m范围内,CFD技术模拟漂滴与盐沉积的最大距离出现在下风向500 m左右。SACTI模型预测漂滴与盐地面最大沉积量约为CFD技术模拟地面最大沉积量的3倍,主要原因是由于CFD在模拟过程中考虑的冷却塔局地环流以及周围建筑物对漂滴沉积的影响。

关键词: 冷却塔, 拉格朗日两相流, 雾羽抬升, 漂滴与盐沉积

Abstract: In this paper, the near flow field of cooling tower in a power plant in Shandong Province and the impact of fog plume lifting, drift droplets and salt deposits on local environment were simulated by applying CFD technology and SACTI model. The simulation results were consistent with the field experiment results. The SACTI model predicted that the maximum distance with drift droplets and salt deposits would occur in the range of 200 m near the cooling tower, whereas the CFD technology simulated that the maximum distance would occur around 500 m in the downwind direction. The maximum ground deposition of drift droplets and salt predicted by the SACTI model is about 3 times as much as by the CFD technology simulation, mainly because that the local circulation of cooling tower and the influence of surrounding buildings to drift deposition have been taken into account in the CFD simulation process.

Key words: cooling tower, Lagrangian two-phase flow, fog plume lifting, drift droplets and salt deposition

中图分类号:

X169

史学峰, 郭栋鹏, 姚仁太, 胡继民. CFD技术与SACTI模型在自然通风冷却塔雾羽局地环境影响模拟中的应用比较研究[J]. 辐射防护, 2017, 37(1): 18-26.

Shi Xuefeng, Guo Dongpeng, Yao Rentai, Hu Jimin. Comparative study on the application of CFD technology and SACTI model in local environmental impact simulation of natural ventilation cooling tower fog plume[J]. RADIATION PROTECTION, 2017, 37(1): 18-26.

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