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

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

机构地区：[1]Institute of Nuclear and New Energy Technology(INET),Tsinghua University,Beijing 100084,China

出　　处：《Nuclear Science and Techniques》2021年第9期9-15,共7页核技术（英文）

基　　金：supported by the National S&T Major Project of China(Nos.ZX0690,ZX06902);the CNNC Youth Research Project.

摘　　要：The high-temperature reactor pebble-bed mod-ule(HTR-PM)is a modular high-temperature gas-cooled reactor 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 challenge.Finally,the PANGU is used to pre-dict the critical loading height of the HTR-PM first criti-cality under design conditions,which will be evaluated in the upcoming experiment later this year.

关 键 词：HTR-PM First criticality PREDICTION PANGU 

分 类 号：TM623.94[电气工程—电力系统及自动化]