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CEFR在事故停堆后的剩余功率需通过事故余热排出系统导出。CEFR要求验证在事故余热排出阶段剩余功率≤额定功率的1％（功率分别为 2、3、4、6和 8.5kW）时,堆池内是否还存在有堆芯-热腔室-冷腔室-堆芯这一自然循环流动。此外,通过相应工况下整个热腔室内的温度分布的实验测量,为验证有关计算程序提供实验依据。 由于种种原因的影响,在CEFR的寿期中很可能出现2台余热冷却器中的1台停运的情况,因此工程部要求通过实验提交该工况下的安全性能的验证报告。国外在相关研究中发现,
The residual power of CEFR after accident shutdown must be exported through the accidental waste heat removal system. CEFR requires verification of the presence of a core in the reactor pool at the remaining power ≤ 1% of rated power at 2, 3, 4, 6 and 8.5 kW of residual heat rejection phase - Hot chamber - Cold chamber - The natural circulation of the core flows. In addition, experimental measurements of the temperature distribution in the entire thermal chamber under the corresponding operating conditions provide experimental evidence for verifying the relevant calculation procedures. Due to various reasons, it is likely that one of the two waste heat coolers will be out of service during the CEFR lifetime. Therefore, the engineering department is required to submit the verification report on the safety performance under this condition through experiments. Abroad in the relevant research found that,