Fuel Performance Analysis of Light Water Reactor Based on the Combination of U<sub>3</sub>Si<sub>2</sub> Fuel and Two-Layer SiC Cladding Based on Multi-Physical Field Coupling

Yin Chunyu; Liu Rong; Jiao Yongjun; Qiu Chenjie; Liu Zhenhai; Qiu Bowen; Gao Shixin; Xing Shuo

doi:10.13832/j.jnpe.2022.01.0102

Volume 43 Issue 1

Feb. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(1): 102-109

Yin Chunyu, Liu Rong, Jiao Yongjun, Qiu Chenjie, Liu Zhenhai, Qiu Bowen, Gao Shixin, Xing Shuo. Fuel Performance Analysis of Light Water Reactor Based on the Combination of U3Si2 Fuel and Two-Layer SiC Cladding Based on Multi-Physical Field Coupling[J]. Nuclear Power Engineering, 2022, 43(1): 102-109. doi: 10.13832/j.jnpe.2022.01.0102

Citation:

Yin Chunyu, Liu Rong, Jiao Yongjun, Qiu Chenjie, Liu Zhenhai, Qiu Bowen, Gao Shixin, Xing Shuo. Fuel Performance Analysis of Light Water Reactor Based on the Combination of U₃Si₂ Fuel and Two-Layer SiC Cladding Based on Multi-Physical Field Coupling[J]. Nuclear Power Engineering, 2022, 43(1): 102-109. doi: 10.13832/j.jnpe.2022.01.0102

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Fuel Performance Analysis of Light Water Reactor Based on the Combination of U₃Si₂ Fuel and Two-Layer SiC Cladding Based on Multi-Physical Field Coupling

doi: 10.13832/j.jnpe.2022.01.0102

1.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
2.
School of Electric Power Engineering, Guangzhou, 510640, China

Received Date: 2020-12-21
Rev Recd Date: 2021-08-05
Publish Date: 2022-02-01

Abstract

Abstract

Based on COMSOL platform, a fuel performance analysis program based on multi-physical field full coupling is developed, and the correctness and accuracy of the program are verified by comparing with the radial power distribution model; Then the performances of the combinations of U₃Si₂ fuel and two-layer SiC cladding, U₃Si₂ fuel and zirconium alloy cladding under normal reactor operating conditions are further analyzed and compared with the combination of UO₂ fuel and zirconium alloy. The calculation results show that the combination of U₃Si₂ fuel and zirconium alloy cladding has lower fuel center temperature, fission gas release and internal pressure than that of UO₂ fuel and zirconium alloy, but the air gap closing time will be earlier; The combination of U₃Si₂ fuel and two-layer SiC cladding has higher fuel center temperature, greater fission gas release and internal pressure than the combination of U₃Si₂ fuel and zirconium alloy, and its fuel center temperature increases significantly with the increase of burnup. Compared with zirconium alloy cladding, two-layer SiC cladding can effectively delay the closing of air gap and alleviate the mechanical interaction between fuel and cladding.
- U₃Si₂ fuel,
- Two-layer SiC cladding,
- Multi-physical field,
- Fuel performance

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References(18)

References

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