Research on the Thermal-Mechanical Performance of Hollow Hexagonal Fuel Element

Liu Shichao; Li Quan; Huang Yongzhong; Pang Hua; Li Yuanming; Chai Xiaoming; Qiu Xi; Zhao Yanli; Liao Nan; Ran Renjie

doi:10.13832/j.jnpe.2022.05.0133

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 133-137

Liu Shichao, Li Quan, Huang Yongzhong, Pang Hua, Li Yuanming, Chai Xiaoming, Qiu Xi, Zhao Yanli, Liao Nan, Ran Renjie. Research on the Thermal-Mechanical Performance of Hollow Hexagonal Fuel Element[J]. Nuclear Power Engineering, 2022, 43(5): 133-137. doi: 10.13832/j.jnpe.2022.05.0133

Citation:

Liu Shichao, Li Quan, Huang Yongzhong, Pang Hua, Li Yuanming, Chai Xiaoming, Qiu Xi, Zhao Yanli, Liao Nan, Ran Renjie. Research on the Thermal-Mechanical Performance of Hollow Hexagonal Fuel Element[J]. Nuclear Power Engineering, 2022, 43(5): 133-137. doi: 10.13832/j.jnpe.2022.05.0133

Citation:

Liu Shichao, Li Quan, Huang Yongzhong, Pang Hua, Li Yuanming, Chai Xiaoming, Qiu Xi, Zhao Yanli, Liao Nan, Ran Renjie. Research on the Thermal-Mechanical Performance of Hollow Hexagonal Fuel Element[J]. Nuclear Power Engineering, 2022, 43(5): 133-137. doi: 10.13832/j.jnpe.2022.05.0133

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Research on the Thermal-Mechanical Performance of Hollow Hexagonal Fuel Element

doi: 10.13832/j.jnpe.2022.05.0133

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-09-26
Rev Recd Date: 2021-10-29
Publish Date: 2022-10-12

Abstract

Abstract

Hollow hexagonal fuel elements are widely used in high temperature gas-cooled reactor. In order to study the in-reactor performance of the hollow hexagonal fuel element and evaluate its failure probability, the thermo-mechanical behavior analysis of the hollow hexagonal fuel element for high temperature gas-cooled reactor is carried out. The thermal-mechanical behavior of the hollow hexagonal fuel element is calculated by using the multi-physical field coupling method, and the temperature field, deformation, stress distribution and failure probability of the hollow hexagonal fuel element under the condition of low neutron fluence are analyzed. The results show that the maximum operating temperature of the hollow hexagonal fuel element is about 1020 K, the maximum stress of SiC matrix is about 107.32 MPa, and the failure probability is 3.52×10⁻⁴. The low failure probability of SiC matrix ensures the structural integrity of fuel elements. Under the lower neutron fluence, the operating temperature and stress of the hollow hexagonal fuel element are lower, the structural integrity can be ensured, and the fuel element has a good operating state in the reactor.
- Hollow hexagonal fuel element,
- Thermal-mechanical behavior,
- Failure probability

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References(8)

References

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