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A new functional modeling framework of risk monitor system

YOSHIKAWA Hidekazu1, LIND Morten2, MATSUOKA Takeshi3, HASHIM Muhammad4, YANGMing5, and ZHANGZhijian6

1. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (yosikawa@kib.biglobe.ne.jp)
2. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (mli@elektro.dtu.dk)
3. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (mats@cc.utsunomiya-u.ac.jp)
4. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (hashimsajid@yahoo.com)
5. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (myang.heu@gmail.com)
6. College of Nuclear Science & Technology, Harbin Engineering University, 145-1 Nantong Street, Nangang District, Harbin, 150001, Heilongjiang, P.R. China (zhangzhijian@hrbeu.edu.cn) 

Abstract:A new risk monitor system has been developed which can be applied not only to prevent severe accident in daily operation but also to serve as to mitigate the radiological hazard just after severe accident happens and long term management of post-severe accident consequences.The fundamental assumption of such risk monitor system, the method of configuring the whole system by plant Defense in Depth (DiD) risk monitor and reliability monitor, and the progress of development thus far conducted are first summarized. Then the result of preliminary study on how to configure the Plant Defense in Depth Risk Monitor by functional modeling approach is presented. .Lastly, a preliminary study is conducted on applying the integrated functional modeling for Plant Defense in depth risk monitor for passive safety system of AP1000.
Keyword: severe accident prevention; risk monitor; functional modeling; reliability monitor; plant DiD risk monitor; passive safety AP1000

 
 
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