CAJ | 학술논문

利用单通道模型，开发了铅铋冷却加速器驱动次临界系统（ADS ）堆芯组件温度和密度分布的热工计算程序，并将该程序与MCNP耦合，建立了物理热工耦合计算方法。利用该方法计算了耦合后的功率及热工参数。结果表明，堆芯组件温度及冷却剂流速满足热工安全限值，堆芯径向功率不均匀系数较大，堆芯设计需进一步优化。
이용단통도모형，개발료연필냉각가속기구동차림계계통（ADS ）퇴심조건온도화밀도분포적열공계산정서，병장해정서여MCNP우합，건립료물리열공우합계산방법。이용해방법계산료우합후적공솔급열공삼수。결과표명，퇴심조건온도급냉각제류속만족열공안전한치，퇴심경향공솔불균균계수교대，퇴심설계수진일보우화。
A thermal‐hydraulics code based on single‐channel model was developed to calculate the temperature and density profile of fuel assemblies in the conceptual lead‐bismuth cooled accelerator driven subcritical system (ADS) .By coupling the code with MCNP ,the neutronics and thermal‐hydraulics coupled method was introduced ,and the power and thermal‐hydraulic parameters of the ADS were analyzed with the method . The result shows that the assembly temperature and the coolant velocity meet the requirements of the safety limits .However ,the radial power nonuniform distribution factor is relatively large ,so a further design is deserved .