CAJ | 학술논문

燃料管理与优化程序需对堆芯布置方案进行快速评价，常用方法有二维扩散节块法、微扰法、神经网络法等。本文基于三维轻水堆中子扩散计算程序CPACT进行了二维快速堆芯布置方案评价程序开发。在二维堆芯扩散计算中采用引入轴向曲率的方法模拟轴向泄漏，并通过分燃耗点搜索轴向曲率的方式修正计算结果。同时，对控制棒组件截面原有的体积权重等效计算方法进行了改进，提高了二维计算结果的精度。
연료관리여우화정서수대퇴심포치방안진행쾌속평개，상용방법유이유확산절괴법、미우법、신경망락법등。본문기우삼유경수퇴중자확산계산정서CPACT진행료이유쾌속퇴심포치방안평개정서개발。재이유퇴심확산계산중채용인입축향곡솔적방법모의축향설루，병통과분연모점수색축향곡솔적방식수정계산결과。동시，대공제봉조건절면원유적체적권중등효계산방법진행료개진，제고료이유계산결과적정도。
Fuel management optimization process requires rapid assessment for the core layout program , and the commonly used methods include two-dimensional diffusion nodal method , perturbation method , neural network method and etc . A two-dimensional loading patterns evaluation code was developed based on the three-dimensional LWR diffusion calculation program CPACT .Axial buckling introduced to simulate the axial leakage was searched in sub-burnup sections to correct the two-dimensional core diffusion calculation results . Meanwhile , in order to get better accuracy ,the weight equivalent volume method of the control rod assembly cross-section w as improved .