Burnup analysis for the pebble-bed fluoride-salt-cooled high-temperature reactor based on the energy-dependent elastic scattering cross-sectional model

被引：0
|
作者：
Zhi-Feng Li
Jie-Jin Cai
Qin Zeng
Wen-Jie Zeng
机构：
[1] South China University of Technology,School of Electric Power
[2] Purdue University,School of Nuclear Engineering
[3] University of South China,School of Nuclear Science and Technology
来源：
Nuclear Science and Techniques | 2018年 / 29卷
关键词：
PB-FHR; Doppler broadening rejection correction; Resonance elastic scattering; PSG2/Serpent;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
To carry out accurate burnup calculations for a pebble-bed fluoride-salt-cooled high-temperature reactor, the energy-dependent cross-sectional model based on the Doppler broadening rejection correction method has been proposed to develop the energy-dependent elastic scattering cross-sectional model. In this study, the Monte Carlo continuous energy code PSG2/Serpent was used to examine the difference between the constant cross-sectional model and the energy-dependent cross-sectional model during burnup. For the cases analyzed in this study, numerical simulations show that the multiplication coefficient was improved by hundreds pcm and 239Pu concentration was improved by approximately 1–2% during burnup when the energy-dependent elastic scattering cross-sectional model is considered.
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