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本文给出了位于上空腔的中小尺寸管道破裂或安全阀意外开启引起的小破口失水事故实验研究。在实验中研究了系统压力、温度、空泡份额的变化和总失水量。结果表明总失水量约为初始装水量的百分之二十。这种事故对于清华大学核能研究所建造的低温供热堆是安全的。
This paper gives an experimental study on the small breakage water loss accident caused by the rupture of small and medium sized pipes in the upper cavity or the accidental opening of the safety valve. In the experiment, the changes of system pressure, temperature, void fraction and total water loss were studied. The results showed that the total water loss was about 20% of the initial water capacity. This kind of accident is safe for the low temperature heating reactor built by Tsinghua University Institute of Nuclear Energy.