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Research Papers

A Methodology to Analyze the Safety of a Coastal Nuclear Power Plant Against Typhoon External Flooding Risks

[+] Author and Article Information
Tian Chen

EDF R&D China,
Henderson Center Tower 2 Floor 12, 18 Jianguomennei Avenue, Beijing 100005, China
e-mail: tian.chen@edf.fr

Antoine Joly

EDF R&D Chatou,
LNHE-P74, 6 Quai watier BP49, Chatou 78401, France
e-mail: antoine.joly@edf.fr

Rong Pan

Nuclear and Radiation Safety Center,
No. 54, HongLianNanCun, Haidian, Beijing 100082, China
e-mail: panrong@chinansc.cn

Ping Ji

China Institute of Water Resources and Hydropower Research,
1, Fuxing Road,
Beijing 100162, China
e-mail: Jiping19641213@126.com

Guofei Chen

EDF R&D China,
Henderson Center Tower 2 Floor 12, 18 Jianguomennei Avenue, Beijing 100005, China
e-mail: guofei.chen@edf.fr

1Corresponding author.

Manuscript received October 14, 2016; final manuscript received June 24, 2016; published online December 20, 2016. Assoc. Editor: Ralph Hill.

ASME J of Nuclear Rad Sci 3(1), 011008 (Dec 20, 2016) (7 pages) Paper No: NERS-15-1211; doi: 10.1115/1.4034974 History: Accepted June 24, 2016; Received October 14, 2016

For the protection of a coastal nuclear power plant (NPP) against external flooding hazard, the risks caused by natural events have to be taken into account. In this article, a methodology is proposed to analyze the risk of the typical natural event in China (Typhoon). It includes the simulation of the storm surge and the strong waves due to its passage in Chinese coastal zones and the quantification of the sequential overtopping flow rate. The simulation is carried out by coupling two modules of the hydraulic modeling system TELEMAC-MASCARET from ElectricitØ de France (EDF), the shallow water module (TELEMAC2D) and the spectral wave module (TOMAWAC). As an open-source modeling system, this methodology could still be enriched by other phenomena in the near future to ameliorate its performance in safety analysis of the coastal NPPs in China.

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Figures

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Fig. 1

Types of wave overtopping and overflow [14]: (a) wave overtopping for positive freeboard, (b) wave overtopping for positive zero freeboard, (c) overflow for negative freeboard, and (d) overflow and overtopping for negative freeboard

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Fig. 2

Comparison between the simulated tides results and observed data

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Fig. 3

Wind (left) and atmospheric pressure (right) fields of Typhoon

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Fig. 4

Storm surge due to extreme Typhoon

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Fig. 5

Wave height’s variation due to the extreme Typhoon

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Fig. 6

Schema of three cases and the form of the dike

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Fig. 7

Sea level variation of the site chosen as an example for the overtopping calculation

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Fig. 8

Wave overtopping flow rate in three cases

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