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The high-fidelity and high-precision nuclear thermal coupling calculation can simulate the core behavior more accurately. Oxidation corrosion is one of the key scientific problems to be solved in liquid metal reactor, which may affect the structural strength and heat transfer performance of the reactor core. Therefore, it is very important to simulate the three-dimensional distribution of oxidation corrosion field in the core for the safety of lead-cooled fast reactor. In this paper, based on the multi-scale and multi-physical coupling program OpenMOC/KMC-SUBtra-MC/Relap5, the nuclear thermal coupling simulation of SNCLFR-100 was carried out to study the oxidation corrosion of SNCLFR-100. The results show that the temperature field has obvious influence on the oxidation corrosion field. The region with higher temperature has lower oxygen concentration and thicker oxide layer.

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Oxygen Corrosion Simulation of Lead Cooled Fast Reactor SNCLFR-100 Based on Nuclear Thermal Coupling Program

  • 会议论文

  • 发表日期：

    2026年

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  • Sifan Dong,
  • Jingguo Wei,
  • Junjia Zhang,
  • Shuai Wang,
  • Kefan Zhang,
  • Hongli Chen

摘要

The high-fidelity and high-precision nuclear thermal coupling calculation can simulate the core behavior more accurately. Oxidation corrosion is one of the key scientific problems to be solved in liquid metal reactor, which may affect the structural strength and heat transfer performance of the reactor core. Therefore, it is very important to simulate the three-dimensional distribution of oxidation corrosion field in the core for the safety of lead-cooled fast reactor. In this paper, based on the multi-scale and multi-physical coupling program OpenMOC/KMC-SUBtra-MC/Relap5, the nuclear thermal coupling simulation of SNCLFR-100 was carried out to study the oxidation corrosion of SNCLFR-100. The results show that the temperature field has obvious influence on the oxidation corrosion field. The region with higher temperature has lower oxygen concentration and thicker oxide layer.