Response of Cooling Tower Plume of Inland Nuclear Power Plant to Environmental Elements
GUO Ruiping1, YANG Chunlin2, WANG Bo1, ZHANG Qiong1, CHEN Haiying1, ZHANG Chunming1, LIU Fudong1
1. Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China;
2. Department of Resources and Environment, Henan Institute of Science and Technology, Xinxiang 453003, China
Abstract:Plume dispersion of cooling towers is the most important environment problem in environmental impact assessment of an inland nuclear power plant, which greatly impacts the living environment of the residents around the plant. The SACTI (seasonal/annual cooling tower impact) model is used to simulate the plume characters of natural draft of the cooling tower under different environmental temperature and wind speed scenarios in order to determine the influences of the meteorological factors in different seasons on plume dispersion of the cooling tower. The study shows that under different temperature circumstances, the plume length frequency predicted by the SACTI model decreases with the temperature increase. The plume height frequency displays an ascending trend with the descending temperature and shows the descending trend with the ascending temperature. The plume radius frequency has a decreasing change with temperature change. Under different wind speed scenarios, the plume length frequency increases with the increasing wind speed. The plume height frequency displays a descending change with the ascending wind speed. The plume radius frequency with respect to wind speed has a similar varying trend to that of the plume height frequency. The effects of temperature and wind speed on the cooling tower plume are very remarkable and impact cooling tower plume dispersion in different seasons.
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