【摘要】 针对中国先进研究堆(CARR)的结构和运行特点,开发了CARR自然循环能力计算程序,计算得到了不同池水温度条件下CARR自然循环能力,并分析了池水温度对CARR自然循环特性的影响:自然循环冷却剂流量随池水温度的升高而增大,但自然循环能力(带走的堆芯功率)随池水温度升高而降低。基于理论推导和程序计算结果,提出了一个适用于预测不同池水温度下CARR自然循环流量和堆芯功率的简单关系式,该关系式预测值与程序计算结果误差小于±10%。更多还原

【Abstract】 An analysis code was developed to calculate the natural circulation capacity of China Ad-vanced Research Reactor(CARR) under the conditions of different pool water temperatures.The influence of the pool water temperature on natural circulation characteristics was analyzed,and it was showed that the natural circulation flow rate increased however,the natural circulation capacity decreased with the increasing pool water temperature.Based on the computational result and the theoretical deduction,a correlation was proposed to predicting the relationship between the natural circulation mass flow and the core power under different conditions.The correlation prediction agreed well with the computational result,and the maximal error was less than ±10%.更多还原