Research on Transient Multi-Group Pin-Power Reconstruction Based on Source Expansion Method

Bai Jiahe; Wan Chenghui; Li Yunzhao; Wu Hongchun

doi:10.13832/j.jnpe.2022.02.0017

Volume 43 Issue 2

Apr. 2022

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Bai Jiahe, Wan Chenghui, Li Yunzhao, Wu Hongchun. Research on Transient Multi-Group Pin-Power Reconstruction Based on Source Expansion Method[J]. Nuclear Power Engineering, 2022, 43(2): 17-21. doi: 10.13832/j.jnpe.2022.02.0017

Citation:

Bai Jiahe, Wan Chenghui, Li Yunzhao, Wu Hongchun. Research on Transient Multi-Group Pin-Power Reconstruction Based on Source Expansion Method[J]. Nuclear Power Engineering, 2022, 43(2): 17-21. doi: 10.13832/j.jnpe.2022.02.0017

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Research on Transient Multi-Group Pin-Power Reconstruction Based on Source Expansion Method

doi: 10.13832/j.jnpe.2022.02.0017

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

Received Date: 2021-02-08
Rev Recd Date: 2021-09-10
Publish Date: 2022-04-02

Abstract

Abstract

This paper studies the calculation method of transient multi-group pin-power reconstruction of PWR. Starting from the transient fixed-source equation, the transient fixed-source term is expressed in the form of biquadratic Legendre polynomial, and the pin-power reconstruction is realized through the iterative solution of the whole reactor. The method is applied to the core physics code SPARK, and the TWIGL transient benchmark task is used to verify the accuracy of transient multi-group pin-power reconstruction. Numerical results show that the PWR transient multi-group pin-power reconstruction method proposed in this paper has high computational accuracy.
- Transient multi-group pin-power reconstruction,
- Transient fixed-source equation,
- SPARK code,
- Transient calculation

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References(6)

References

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