Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2020, Vol. 31 ›› Issue (7): 69 doi: 10.1007/s41365-020-00781-y

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Calculation of effective point reactor kinetic parameters combined with the Galerkin finite element method

Bao-Xin Yuan1,2 Wan-Kui Yang1 Song-Bao Zhang1 Bin Zhong2 Jun-Xia Wei2 Yang-Jun Ying2   

  1. 1China Academy of Engineering Physics, Institute of Nuclear Physics and Chemistry, Mianyang 621900, China
    2Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
  • Received:2020-02-22 Revised:2020-05-11 Accepted:2020-05-13
  • Contact: Bao-Xin Yuan
  • Supported by:
    This work was supported by the National Key R&D Plan Project (No. 2019YFB1901200) and Fundamental Project of NPL, CAEP (No. 232).
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Bao-Xin Yuan, Wan-Kui Yang, Song-Bao Zhang, Bin Zhong, Jun-Xia Wei, Yang-Jun Ying. Calculation of effective point reactor kinetic parameters combined with the Galerkin finite element method.Nuclear Science and Techniques, 2020, 31(7): 69     doi: 10.1007/s41365-020-00781-y

Abstract: Precise point reactor kinetic parameters are essential in the study of reactor dynamics. Point reactor kinetic parameters include the effective delayed neutron fraction and prompt neutron lifetime. In this work, effective point reactor kinetic parameters, which can be applied to unstructured grids, were calculated based on the Galerkin finite element method. First, two-dimensional and three-dimensional benchmarks were used to verify the calculation of steady-state neutronics parameters. Then, the Tehran research reactor core was divided into hexahedral meshes, and the forward flux and adjoint flux were calculated. Finally, the effective point reactor kinetic parameters of the Tehran research reactor were obtained by comprehensively processing the steady-state neutronics parameters.

Key words: Finite element method, Reactor, Kinetic parameters