Application development of RPT module based on OpenMC for double-heterogeneous system

Liu Pengfei; Chen Yuqing; Li Song; Zhu Tong

doi:10.11884/HPLPB202335.230193

Volume 35 Issue 12

Nov. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(12): 126002

Liu Pengfei, Chen Yuqing, Li Song, et al. Application development of RPT module based on OpenMC for double-heterogeneous system[J]. High Power Laser and Particle Beams, 2023, 35: 126002. doi: 10.11884/HPLPB202335.230193

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Liu Pengfei, Chen Yuqing, Li Song, et al. Application development of RPT module based on OpenMC for double-heterogeneous system[J]. High Power Laser and Particle Beams, 2023, 35: 126002. doi: 10.11884/HPLPB202335.230193

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Application development of RPT module based on OpenMC for double-heterogeneous system

doi: 10.11884/HPLPB202335.230193

Liu Pengfei^1
,,
Chen Yuqing^{1
,
,},
Li Song¹,
Zhu Tong²

1.
College of Nuclear Science and Technology , Naval University of Engineering, Wuhan 430033, China
2.
China Nuclear Power Operation Technology Corporation, Ltd, Wuhan 430074, China

Received Date: 2023-06-24
Accepted Date: 2023-07-28
Rev Recd Date: 2023-10-30

Available Online: 2023-11-09

Publish Date: 2023-12-15

Abstract

Abstract

Due to the large number of randomly distributed dispersed particles in the matrix, the double heterogeneous (DH) system has a complex geometric structure, and it is often difficult to deal with the DH system using the traditional neutronics calculation method. The reactivity equivalent physical transformation (RPT) method is a commonly used approximation method. This paper analyzes the three key steps of the RPT method: the solution of the exact initial value, the solution of the equivalent radius, and the selection of the depletion algorithm. The influence of different algorithms on the efficiency and accuracy of the RPT method is discussed. Based on OpenMC, an RPT module is developed on the Python API. The numerical results show that the optimized RPT module can meet the needs of engineering calculation accuracy while maintaining good calculation efficiency.
- OpenMC,
- double heterogeneous system,
- dispersed particulate fuel,
- reactivity equivalent physical transformation method

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References(18)

References

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