Nuclear Techniques ›› 2017, Vol. 40 ›› Issue (11): 110602-110602.doi: 10.11889/j.0253-3219.2017.hjs.40.110602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Burnup information updating and verification based on WIMS-D library

XIAO Xiang1, WU Jun1, GONG You1, YANG Tongrui2, DONG Zhengyun3, CHEN Yixue1,2   

  1. 1 School of Nuclear Science and Engineering, North China Electric Power University, Beijing 102206, China;
    2 National Nuclear Power Technology Co., Ltd, Beijing Software Technology Center, Beijing 100029, China;
    3 Institute of Nuclear Safety Technology, Chinese Academy of Sciences, Hefei 230000, China
  • Received:2017-03-28 Revised:2017-05-12 Online:2017-11-10 Published:2017-11-08
  • Supported by:
    Supported by National Natural Science Foundation of China (No.11275070), National Research and Development Projects (No.2011ZX06004-024-06-03-00), Fundamental Research Funds for the Central Universities (No.2014MS51)

Abstract: Background: With the development of AP1000, the burnup has been raised constantly and the average burnup is expected to reach 60 GW d·t-1. However, the traditional WIMS-D library which is based on WIMS69 and XMAS172 energy group structure, has too many flaws such as the resonance overlap effect, lack of some nuclides, unreliable value of the fission product yield and thus can't explicitly treat the nuclide of 152Gd, 160Gd, 159Tb and 160Tb in the pseudo fission product. Purpose: A new version of WIMS-D library based on ENDF/B-VⅡ.1 with SHEM281 group structure is developed to improve the accuracy of cell calculation using the NJOY program. Methods: The new library is verified through the analysis of criticality and burnup benchmarks by using DRAGON program. Results: The results show that the calculation values are in good agreement with the benchmark. Conclusion: The new library has high precision and the result is reliable, which can be used for the PWR's calculation.

Key words: SHEM281, Pseudo fission product, Fission product chain, Fission product yield

CLC Number: 

  • TL99