CAJ | 학술논문

使用RELAP5程序建立CANDU 6型重水堆模型，对停堆工况下主热传输系统环路内的单相自然循环进行了分析研究，并推导出重水堆单相自然循环流量模型。对 Vijayan模型与 RELAP5程序的自然对流传热模型（Churchill-Chu和McAdams模型）进行比较计算，结果表明，Vijayan模型计算的水平壁面传热系数低于程序模型，造成包壳温度略高，而竖直壁面传热系数则无明显差别。
사용RELAP5정서건립CANDU 6형중수퇴모형，대정퇴공황하주열전수계통배로내적단상자연순배진행료분석연구，병추도출중수퇴단상자연순배류량모형。대 Vijayan모형여 RELAP5정서적자연대류전열모형（Churchill-Chu화McAdams모형）진행비교계산，결과표명，Vijayan모형계산적수평벽면전열계수저우정서모형，조성포각온도략고，이수직벽면전열계수칙무명현차별。
The single-phase natural circulation of the main heat transport system (HTS) for CANDU 6 under shutdown condition was analyzed by using RELAP5 code ,and the single-phase natural circulation mass flow rate model was developed .The comparison analysis of the Vijayan model and natural circulation models including the Chrichill-Chu model and McAdams model for RELAP5 was conducted ,respectively .The results show that a lower horizontal heat transfer coefficient is obtained by using Vijayan model than that by the McAdams model ,causing a slight higher cladding temperature .However , the vertical heat transfer coefficients from both models have no significant difference .