【摘要】 高温熔融物质和冷却剂之间相互作用(FCI现象)时,会引起蒸汽爆炸。反应堆中经常使用的冷却剂是水和钠。为了解决反应堆安全性问题,国外分别对不同堆型做了一系列FCI的实验,但对水和钠在FCI中起的不同作用并未见到系统研究的报道。我国尚没有条件做这种耗资大、难度高的实验,对FCI的研究也几近空白。本文试图通过冷却剂为水和冷却剂为钠的FCI现象的机理分析,提取实验数据并建立数值模型,为快堆安全分析提供可靠的判断依据。更多还原

【Abstract】 In the fuel-coolant interactions,water and Na are the two most commonly used coolants.It is proved that the water can produce violent interactions with molten metal and results in steam explosion.With the development of the MFBR technique,the problem of reactor safety must be solved urgently.Water-FCI phenomenon and Na-FCI phenomenon are compared by analyzing experimental results and numerical simula-tion,thus providing a basis for the analysis of MFBR safety.更多还原