Prediction calculations for the first criticality of the HTR-PM using the PANGU code

Ding She; Bing Xia; Jiong Guo; Chun-Lin Wei; Jian Zhang; Fu Li; Lei Shi; Zuo-Yi Zhang

doi:10.1007/s41365-021-00936-5

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Prediction calculations for the first criticality of the HTR-PM using the PANGU code

NUCLEAR ENERGY SCIENCE AND ENGINEERING | Updated：2021-09-30

- Prediction calculations for the first criticality of the HTR-PM using the PANGU code
- Nuclear Science and Techniques Vol. 32, Issue 9, Article number: 90(2021)
- Affiliations：
  
  1.Institute of Nuclear and New Energy Technology (INET), Tsinghua University, Beijing 100084, China
- Author bio：
  
  Jiong Guo guojiong12@tsinghua.edu.cn
- Funds：
- DOI：10.1007/s41365-021-00936-5
  CLC：
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Ding She, Bing Xia, Jiong Guo, et al. Prediction calculations for the first criticality of the HTR-PM using the PANGU code. [J]. Nuclear Science and Techniques 32(9):90(2021)
DOI：

Ding She, Bing Xia, Jiong Guo, et al. Prediction calculations for the first criticality of the HTR-PM using the PANGU code. [J]. Nuclear Science and Techniques 32(9):90(2021) DOI： 10.1007/s41365-021-00936-5.

摘要

Abstract

The high-temperature reactor pebble-bed module (HTR-PM) is a modular high-temperature gas-cooled reactor (HTGR) demonstration power plant. Its first criticality experiment is scheduled for the latter half of 2021. Before performing the first criticality experiment, a prediction calculation was performed using PANGU code. This paper presents the calculation details for predicting the HTR-PM first criticality using PANGU, including the input model and parameters, numerical results, and uncertainty analysis. The accuracy of the PANGU code was demonstrated by comparing it with the high-fidelity Monte Carlo solution, using the same input configurations. It should be noted that ,k,eff, can be significantly affected by uncertainties in nuclear data and certain input parameters, making the criticality calculation challenging. Finally, PANGU is used to predict the critical loading height of the HTR-PM first criticality under design conditions, which will be evaluated in the upcoming experiment later this year.

关键词

Keywords

HTR-PMFirst criticalityPredictionPANGU

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