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利用轻水堆系统通用的热工水力分析程序ＲＥＴＲＡＮ０２ ， 对２００ ＭＷ 池式供热堆的未能紧急停堆的预期瞬变（ＡＴＷＳ） 事故， 即断电ＡＴＷＳ 事故、误提棒ＡＴＷＳ 事故、外负荷丧失ＡＴＷＳ 事故等进行了计算和分析。结果表明， 在事故过程中， 主要参数没有超出允许范围； 不需任何设备动作和人员干预， 反应堆就能自动降功率， 进入热停堆状态并维持长期堆芯冷却， 具有较高的安全性。
Utilizing the common hydrothermal hydraulic analysis program RETRAN02 of the light water reactor system, an expected transient (ATWS) failure of an emergency shutdown of a 200 MW pool heating reactor, ie, a power outage ATWS accident, a mistaken mention of an ATWS accident , Load loss ATWS accidents were calculated and analyzed. The results showed that the main parameters did not exceed the allowable range in the accident process. Without any equipment action and personnel intervention, the reactor could automatically reduce power, enter the thermal shutdown state and maintain long-term core cooling with high safety.