Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (5): 50602-050602.doi: 10.11889/j.0253-3219.2016.hjs.39.050602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Response-surface-fitting method based reliability analysis for passive decay heat removal system of China lead-based research reactor

PAN Xiaolei1,2, WANG Jiaqun2, HU Liqin1,2, WANG Jianye2, WANG Jin2   

  1. 1. University of Science and Technology of China, Hefei 230027, China;
    2. Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2016-02-13 Revised:2016-03-17 Online:2016-05-10 Published:2016-05-12
  • Supported by:

    Supported by Strategic Priority Research Program of Chinese Academy of Sciences(No.XDA03040000) and the Informatizational Special Projects of Chinese Academy of Sciences(No.XXH12504-1-09)

Abstract:

Background: Passive system has been widely applied in the design of the new generation reactor, and the reliability analysis has become a key matter in the Probabilistic Safety Analysis(PSA) frame. Purpose: A response-surface-fitting method for the reliability analysis of passive systems is presented and applied in Reactor Vessel Air Cooling System(RVCAS) of China lead-based research reactor(CLEAR-I). Methods: The inputs and outputs for Fluent model of RVCAS were set as the input samplings, and least square method and bootstrap method were used to solve the performance function of response surface which was used to evaluate the reliability of passive RVCAS, instead of Fluent model. Results: The results showed that two of four sets RVACS pipes can remove residual heat of reactor during loss of power with the probability of 0.9938. Conclusion: The system is highly reliable.

Key words: China lead-based research reactor, Passive decay heat removal system, Response-surface-fitting-method, Least square method, bootstrap

CLC Number: 

  • TL364.5