Numerical Study on Oxidation and Dissolution/Precipitation Performances of the ADS Cladding

Li Xiaobo; He Yuan; Niu Fenglei

doi:10.13832/j.jnpe.2024.080054

Volume 46 Issue 4

Aug. 2025

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Li Xiaobo, He Yuan, Niu Fenglei. Numerical Study on Oxidation and Dissolution/Precipitation Performances of the ADS Cladding[J]. Nuclear Power Engineering, 2025, 46(4): 144-151. doi: 10.13832/j.jnpe.2024.080054

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Li Xiaobo, He Yuan, Niu Fenglei. Numerical Study on Oxidation and Dissolution/Precipitation Performances of the ADS Cladding[J]. Nuclear Power Engineering, 2025, 46(4): 144-151. doi: 10.13832/j.jnpe.2024.080054

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Numerical Study on Oxidation and Dissolution/Precipitation Performances of the ADS Cladding

doi: 10.13832/j.jnpe.2024.080054

Li Xiaobo^1
,,
He Yuan^{1, 2
,
,},
Niu Fenglei³

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
2.
School of Nuclear Science and Technology, University of the Chinese Academy of Sciences, Beijing, 100049, China
3.
School of Nuclear Science and Technology, North China Electric Power University, Beijing, 102206, China

Received Date: 2024-08-30
Rev Recd Date: 2024-10-20
Publish Date: 2025-08-15

Abstract

Abstract

To investigate the growth characteristics of the oxide scale in the fuel cladding of the lead-bismuth eutectic cooled Accelerator-driven Subcritical System (ADS), and to analyze the heat transfer in the fuel cladding with an oxide scale, the paper proposes a growth and dissolution/deposition model for ADS cladding oxide scale and couple it with the computational fluid dynamics (CFD) method, so as to investigate and realize the simulation of cladding oxide scale growth and fuel rod temperature in the presence of dissolution/deposition. The results of study on fuel rod heat transfer and cladding surface oxidation and dissolution/precipitation of our independently designed multi-beam ADS demonstrate that: the experimental data show a high level of agreement at elevated oxygen concentrations; the maximum oxide scale thickness and dissolution thickness are observed in the high-temperature region of the active zone within the core, while the maximum deposition thickness is in its inlet; the oxide scale reached a thickness of approximately 65 μm after 10000 h, with a maximum increase in temperature difference between the cladding inner and outer surface of 12.20 K. Therefore, ADS fuel cladding surface oxide scale growth model and its numerical calculation method, as proposed in this study, are capable of calculating the fuel rod temperatures for the fuel cladding with oxide scale in the flow liquid lead-bismuth eutectic environment.
- Accelerator-driven subcritical system (ADS),
- Cladding oxide scale,
- Dissolution/precipitation,
- T91 stainless steel

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References(22)

References

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