Numerical Research on Anti-corrosion Properties of Rod Bundle Channel

Wang Suhao; Li Ying; Yue Nina; Guo Liang; Xiao Hui; Lou Ruifan; Zhuo Wenbin

doi:10.13832/j.jnpe.2023.S1.0088

Volume 44 Issue S1

Jun. 2023

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Article Navigation > Nuclear Power Engineering > 2023 > 44(S1): 88-94

Wang Suhao, Li Ying, Yue Nina, Guo Liang, Xiao Hui, Lou Ruifan, Zhuo Wenbin. Numerical Research on Anti-corrosion Properties of Rod Bundle Channel[J]. Nuclear Power Engineering, 2023, 44(S1): 88-94. doi: 10.13832/j.jnpe.2023.S1.0088

Citation:

Wang Suhao, Li Ying, Yue Nina, Guo Liang, Xiao Hui, Lou Ruifan, Zhuo Wenbin. Numerical Research on Anti-corrosion Properties of Rod Bundle Channel[J]. Nuclear Power Engineering, 2023, 44(S1): 88-94. doi: 10.13832/j.jnpe.2023.S1.0088

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Numerical Research on Anti-corrosion Properties of Rod Bundle Channel

doi: 10.13832/j.jnpe.2023.S1.0088

CNNC Key Laboratory Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2023-03-24
Rev Recd Date: 2023-05-30
Publish Date: 2023-06-15

Abstract

Abstract

In order to obtain the formation of anti-corrosion layer on the surface of fuel assembly channels in advanced reactors and provide support for the analysis of reactor operation strategy, this paper puts forward an oxygen transport calculation model, and combined with Computational Fluid Dynamics method, the anti-corrosion layer generated in typical 19-rod bundle channels of fuel assemblies is analyzed. The flow field and temperature field in the rod bundle channel, the oxygen concentration distribution of the rod bundle under two kinds of inlet oxygen concentrations and three kinds of operation time, and the formation of the anti-corrosion layer on the rod bundle surface are obtained. The results show that the anti-corrosion layer in the bundle channel is mainly related to the temperature, initial oxygen concentration and operation time. For the existing model, the vicinity of the contact point between spacer and rod is the main area where the anti-corrosion layer is difficult to form, which needs to be paid attention to. The calculation method and results in this paper will provide support for the evaluation of reactor operation strategy.
- Reactor core,
- Anti-corrosion,
- Heat and mass transfer

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References

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