Study on the Diffusion and Release Characteristics of Fission Products from TRISO Coated Fuel Particles

Zheng Junqiang; He Yanan; Zhang Jing; Wu Yingwei; Tian Wenxi; Su Guanghui; Qiu Suizheng

doi:10.13832/j.jnpe.2022.S2.0104

Volume 43 Issue S2

Dec. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(S2): 104-110

Zheng Junqiang, He Yanan, Zhang Jing, Wu Yingwei, Tian Wenxi, Su Guanghui, Qiu Suizheng. Study on the Diffusion and Release Characteristics of Fission Products from TRISO Coated Fuel Particles[J]. Nuclear Power Engineering, 2022, 43(S2): 104-110. doi: 10.13832/j.jnpe.2022.S2.0104

Citation:

Zheng Junqiang, He Yanan, Zhang Jing, Wu Yingwei, Tian Wenxi, Su Guanghui, Qiu Suizheng. Study on the Diffusion and Release Characteristics of Fission Products from TRISO Coated Fuel Particles[J]. Nuclear Power Engineering, 2022, 43(S2): 104-110. doi: 10.13832/j.jnpe.2022.S2.0104

Citation:

Zheng Junqiang, He Yanan, Zhang Jing, Wu Yingwei, Tian Wenxi, Su Guanghui, Qiu Suizheng. Study on the Diffusion and Release Characteristics of Fission Products from TRISO Coated Fuel Particles[J]. Nuclear Power Engineering, 2022, 43(S2): 104-110. doi: 10.13832/j.jnpe.2022.S2.0104

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Study on the Diffusion and Release Characteristics of Fission Products from TRISO Coated Fuel Particles

doi: 10.13832/j.jnpe.2022.S2.0104

School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an, 710049, China

Received Date: 2022-07-20
Rev Recd Date: 2022-09-22
Publish Date: 2022-12-31

Abstract

Abstract

To analyze the diffusion and release characteristics of TRISO-coated fuel particles fission products, the Fick diffusion model of fission products of TRISO-coated fuel particles under irradiation-heat-force coupling is established and verified by the IAEA CRP-6 benchmark task. Then the performance of TRISO-coated fuel particles under typical working conditions of a high-temperature gas-cooled reactor is also analyzed by using the model. At the same time, the release characteristics of fission products at different temperatures and particle powers of TRISO-coated fuel particle are analyzed considering the recoil effect and thermal diffusion effect of fission products. The results show that high temperature causes the loss of the fission product containment capacity of TRISO-coated fuel particles, and the increase of power has less impact on the release of fission products.
- Tristructural isotropic (TRISO),
- Fission product diffusion and release,
- Multi-physical field coupling

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References(12)

References

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