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Simulation of Radiation Condition in HWR NPPs under a Postulated Severe Accident

被引：0
|
作者：
Wang, Xuedong [1 ]
Cao, Xuewu [1 ]
Zhao, Xiaoling [2 ]
机构：
[1] School of Mechanical Engineering, Shanghai Jaotong University, Shanghai,200240, China
[2] Qinshan Third Nuclear Power Co. Ltd., Haiyan,Zhejiang,314300, China
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2019年 / 40卷 / 05期
关键词：
Accessibility problems - Dose rate - Environmental conditions - High dose rate - Postulated accidents - Radiation condition - Radioactive sources - Severe accident;
D O I：
10.13832/j.jnpe.2019.05.0130
中图分类号：
学科分类号：
摘要：
the MCNP code is used to simulate the radiation environmental conditions of different regions of the power plant at different periods under a postulated accident. The results indicate that peak dose level appeared about 2.5 h after the release of the nuclides in the NPPs areas, and thereafter, the dose level gradually decreases as the decay of the nuclide proceeds; in addition, the areas near the ECCS equipment and pipelines maintain an extremely high dose rate for a long time after accidents, and the expected personnel accessibility problem will produce a threat to accident mitigation. © 2019, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.
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页码：130 / 134
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