Study on New Burnable Poison Material Combinations Based on Long-life Pressurized Water Reactor

Tong Ji; Qu Lingyi; Xie Jinsen; Xu Shikun; Yu Tao

doi:10.13832/j.jnpe.2024.02.0035

Volume 45 Issue 2

Apr. 2024

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Tong Ji, Qu Lingyi, Xie Jinsen, Xu Shikun, Yu Tao. Study on New Burnable Poison Material Combinations Based on Long-life Pressurized Water Reactor[J]. Nuclear Power Engineering, 2024, 45(2): 35-41. doi: 10.13832/j.jnpe.2024.02.0035

Citation:

Tong Ji, Qu Lingyi, Xie Jinsen, Xu Shikun, Yu Tao. Study on New Burnable Poison Material Combinations Based on Long-life Pressurized Water Reactor[J]. Nuclear Power Engineering, 2024, 45(2): 35-41. doi: 10.13832/j.jnpe.2024.02.0035

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Study on New Burnable Poison Material Combinations Based on Long-life Pressurized Water Reactor

doi: 10.13832/j.jnpe.2024.02.0035

Tong Ji^{1, 2
,},
Qu Lingyi¹,
Xie Jinsen^{1, 2
,
,},
Xu Shikun^{1, 2, 3},
Yu Tao^{1, 2}

1.
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, 421001, China
2.
Hunan Engineering & Technology Research Center for Virtual Nuclear Reactor, University of South China, Hengyang, Hunan, 421001, China
3.
Cyclotron and Radioisotope Center, Tohoku University, Sendai, Miyagi, 980-8578, Japan

Received Date: 2023-06-05
Rev Recd Date: 2023-06-21
Publish Date: 2024-04-12

Abstract

Abstract

Long-life pressurized water reactors using a single burnable poison assembly design is not the optimal choice. In order to meet the comprehensive requirements of burnable poisons for reactivity control in long-life pressurized water reactors, this paper conducts a combined study on new burnable poisons with good neutronics characteristics: ²³¹Pa₂O₃, PACS-J, PACS-L, ¹⁶⁷Er₂O₃, and ¹⁵⁷Gd₂O₃. The results show that the combination of "fast burnup" and "slow burnup" burnable poisons can achieve better results. For fuel assemblies with "low enrichment", the combination of ²³¹Pa₂O₃ with PACS-J, PACS-L with ¹⁶⁷Er₂O₃ can be selected; for fuel assemblies with "high enrichment", the combination of ²³¹Pa₂O₃ with PACS-J, ¹⁵⁷Gd₂O₃ with ¹⁶⁷Er₂O₃ can be selected. Therefore, this paper realizes the initial excess reactivity control, smooth release of reactivity, and increased burnup level of long-life pressurized water reactors through the combined design of "fast burnup" and "slow burnup" burnable poisons.
- New burnable poison,
- Combination of burnable poisons,
- Fast burnup,
- Slow burnup

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References(13)

References

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