本工作对2 400 MW棱柱先进高温堆的临界及燃耗进行了研究。所采用的计算工具为SCALE5.1中的TRITON模块。计算中选用了3种燃料石墨比分别为27∶65.4、30∶62.4及33∶59.4的模型。经计算,得到了这3种模型的堆芯寿期分别为1 260、1 350及1 320有效满功率天(EFPDs),对应的燃耗深度为139、134和125GW.d/MtU。
The criticality and burnup analysis was performed for the 2 400 MW AHTR,using the computer codes TRITON in SCALE 5.1.Three different models,whose fuel-to-graphite ratio are 27∶65.4,30∶62.4 and 33∶59.4,were selected for the analysis.The core life for these three models was predicted to be 1 260,1 350 and 1 320 effective full power days(EFPDs),and the corresponding burnups are 139,134 and 125 GW·d/MtU,respectively.