最低膜态沸腾温度是划分过渡沸腾和膜态沸腾的界限。在反应堆失水事故以再淹没阶段,当燃料元件表面达到最低膜态沸腾温度时,膜态沸腾崩溃,并导致元件骤冷。因此,最低膜态沸腾温度是反应堆安全分析中的一个重要参数。以往的最低膜态沸腾温度的实验测量大都是在骤冷条件下进行的。由于瞬变快速以 The lowest membrane boiling temperature is the division of transition boiling and membrane boiling. In the reactor rehydration phase, when the fuel element surface reaches the lowest membrane boiling temperature, the membrane boiling crashes and causes the element to quench. Therefore, the lowest membrane boiling temperature is an important parameter in reactor safety analysis. In the past, the experimental measurements of the lowest membrane boiling temperature were mostly carried out under quenching conditions. Due to the fast transient