Preliminary Research of Pebble Bed High-Temperature Gas-Cooled Reactor with Random Refueling Approach Based on VSOP

Wu Hongwei; Xia Bing; She Ding; Li Fu; Zhang Zuoyi

doi:10.13832/j.jnpe.2024.05.0001

Volume 45 Issue 5

Oct. 2024

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Wu Hongwei, Xia Bing, She Ding, Li Fu, Zhang Zuoyi. Preliminary Research of Pebble Bed High-Temperature Gas-Cooled Reactor with Random Refueling Approach Based on VSOP[J]. Nuclear Power Engineering, 2024, 45(5): 1-6. doi: 10.13832/j.jnpe.2024.05.0001

Citation:

Wu Hongwei, Xia Bing, She Ding, Li Fu, Zhang Zuoyi. Preliminary Research of Pebble Bed High-Temperature Gas-Cooled Reactor with Random Refueling Approach Based on VSOP[J]. Nuclear Power Engineering, 2024, 45(5): 1-6. doi: 10.13832/j.jnpe.2024.05.0001

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Preliminary Research of Pebble Bed High-Temperature Gas-Cooled Reactor with Random Refueling Approach Based on VSOP

doi: 10.13832/j.jnpe.2024.05.0001

1.
Department of Engineering Physics, Tsinghua University, Beijing, 100084, China
2.
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China

Received Date: 2023-10-30
Rev Recd Date: 2024-01-30
Publish Date: 2024-10-14

Abstract

Abstract

The pebble bed high-temperature gas-cooled reactor (PB-HTGR) is characterized by continuous online refueling. The fuel ball flows slowly in the core of the reactor. The VSOP code, which is widely used in engineering design, employs an approximate and average refueling method to simulate the process, tending to diminish the randomness of the pebble flow of PBR to some extent. In this paper, a new approach of random refueling based on VSOP code is proposed, and it improves the core refueling model and focuses on the impact of the average merging effect of discharging fuel. The results show that the random refueling approach can provide a more refined discharge fuel burnup probability distribution, and the average merging effect of discharging fuel tends to the broadening and overlapping of burnup peaks.

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References(9)

References

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