G类稳定度在PAVAN软件计算内陆厂址大气弥散因子应用中的探讨

辐射防护 ›› 2018, Vol. 38 ›› Issue (3): 217-220.

G类稳定度在PAVAN软件计算内陆厂址大气弥散因子应用中的探讨

张延乐, 王超

深圳中广核工程设计有限公司上海分公司,上海 200241

收稿日期:2017-11-10 出版日期:2018-05-20 发布日期:2020-07-21
作者简介:张延乐(1985—),女,2007年毕业于中南大学应用物理专业,2010年毕业于中国科学院上海应用物理研究所核技术及应用专业,获硕士学位,工程师。E-mail:zhangyanle@cgnpc.com.cn

Application of stability category G in the inland relative concentrationcalculation by PAVAN

ZHANG Yanle, WANG Chao

Shanghai Branch of China Nuclear Power Design Company,Shanghai 200241

Received:2017-11-10 Online:2018-05-20 Published:2020-07-21

摘要/Abstract

摘要： 本文探讨了在获取气象数据三维联合频率时,使用美国核管会导则RG 1.23中提供的大气稳定度划分方法,即包括G类极端稳定度,对PAVAN程序计算静风频率较高、平均风速较小的内陆厂址大气弥散因子的影响。分析表明,与采用HAD 101/02根据温度梯度和风速确定的大气稳定度的方法获取的计算输入相比,该方法处理计算输入,得到的大气弥散因子约减小了1/2。由于RG 1.23大气稳定度划分方法对于稳定类天气的划分更加精细,在利用PAVAN软件计算时,可充分考虑到小风情况下的风摆效应,得到适当保守且较为适用于内陆厂址条件的大气弥散因子。

关键词: 静风, 大气稳定度, 大气弥散因子, PAVAN

Abstract: With the classification method of atmospheric stability in RG 1.23, the application of stability category G in relative concentration calculation by PAVAN for inland site with low wind speed and more static wind frequency are discussed. The analysis shows that the relative concentration resulting from the RG 1.23 method is about half of that from HAD 101/02, in which atmospheric stability is determined by the temperature gradient and the wind speed but does not include category G. Since the RG 1.23 atmospheric stability classification method is more precise in the classification of stable weather, it’s more effective and reasonable to use the classification of stability in RG 1.23 than that in HAD 101/02 in the input file for PAVAN code while dealing with the inland site with low wind speed and more static wind frequency.

Key words: calm condition, stability class, relative concentration, PAVAN

中图分类号:

X823

张延乐, 王超. G类稳定度在PAVAN软件计算内陆厂址大气弥散因子应用中的探讨[J]. 辐射防护, 2018, 38(3): 217-220.

ZHANG Yanle, WANG Chao. Application of stability category G in the inland relative concentrationcalculation by PAVAN[J]. RADIATION PROTECTION, 2018, 38(3): 217-220.