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Coupled Monte Carlo and Thermal-Hydraulics Modeling for the Three-Dimensional Steady-State Analysis of the Xi’an Pulsed Reactor

Author

Listed:
  • Duoyu Jiang

    (Xi’an Research Institute of Hi-Tech, Xi’an 710025, China
    Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Peng Xu

    (Xi’an Research Institute of Hi-Tech, Xi’an 710025, China)

  • Tianliang Hu

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Xinbiao Jiang

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Lipeng Wang

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Da Li

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Xinyi Zhang

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

  • Lu Cao

    (Northwest Institute of Nuclear Technology, Xi’an 710024, China)

Abstract

The Xi’an Pulsed Reactor (XAPR) is characterized by its small core size and integrated fuel moderator structure, which results in a non-uniform core power and temperature distribution. Consequently, a complex coupling relationship exists between its core neutronics and thermal hydraulics, necessitating the assurance for the operational safety of the XAPR. To optimize the experimental scheme in the reactor, a refined three-dimensional steady-state nuclear-thermal coupling analysis is imperative. This study focuses on investigating the coupling calculation of a three-dimensional steady-state neutronics and thermal-hydraulics model for the XAPR by utilizing an open-source multi-physical coupling framework known as Cardinal. The neutron transport equation is effectively solved using OpenMC, while a three-dimensional heat conduction model is employed to compute the heat conduction of the fuel elements. Furthermore, a parallel multi-channel model is utilized to determine the fluid heat transfer. The research is centered on the XAPR, whereby Monte Carlo and thermal-hydraulics coupling calculations of the core under steady-state full-power conditions are conducted, specifically at an operational capacity of 2 MW. The results demonstrate a strong agreement between the simulation and experimental outcomes. The maximum temperature recorded for the thermometric fuel element in the XAPR is 795.1 K, with a deviation of approximately −5.7% from the measured value. Moreover, the outlet fluid temperature of the thermal channel is observed to be 360 K, exhibiting a deviation of around −2.7% from the measured value.

Suggested Citation

  • Duoyu Jiang & Peng Xu & Tianliang Hu & Xinbiao Jiang & Lipeng Wang & Da Li & Xinyi Zhang & Lu Cao, 2023. "Coupled Monte Carlo and Thermal-Hydraulics Modeling for the Three-Dimensional Steady-State Analysis of the Xi’an Pulsed Reactor," Energies, MDPI, vol. 16(16), pages 1-15, August.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:16:p:6046-:d:1219832
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