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首页> 外文会议>Proceedings of the international topical meeting on advanced reactors safety >The Behavior of Molten Pb and 83 A/O Pb-17 A/O Li When Impacted by a Vertical Column of Water
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The Behavior of Molten Pb and 83 A/O Pb-17 A/O Li When Impacted by a Vertical Column of Water

机译：垂直水柱作用下熔融Pb和83 A / O Pb-17 A / O Li的行为

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Because water-cooled molten Pb-17 a/o Li eutectic is being considered as a breeder/blanket for nuclear fusion, we must understand the interactions that occur if this alloy inadvertently contacts liquid water. We have, therefore, compared the behavior of 120 g of the molten alloy with that of 140 g of molten lead, both at 600℃ when impacted with a vertical 2.4 m-tall column of water at 25℃ or 60℃. (Temperatures and weights are nominal.) The intent of this study was to determine differences between the fuel-coolant interaction (FCI) behaviors of a chemically reactive melt, the PbLi alloy, and of an inert material, Pb.rnH_2 and aqueous solutions of LiOH, both potentially hazardous, were generated with the alloy, but not with the Pb. Although significant chemical reaction occurred with the alloy, no augmentation of the energetics was measured nor was there any indication of runaway metal ignition. The observations can be interpreted as the typical FCI phenomena seen in shock tube geometry, i.e., hydro-dynamic forced mixing of melt by water column impact driving thermal interaction at the melt-water interface. Chemical reactions seem to follow this melt-water contact, moderating, not augmenting, the energetics.
机译：由于水冷的熔融Pb-17 a / o Li共晶被认为是核聚变的繁殖者/毯子，因此，我们必须了解如果这种合金无意间接触液态水会发生相互作用。因此，我们比较了在25℃或60℃的垂直2.4 m高水柱冲击下，在600℃时120 g熔融合金与140 g熔融铅的行为。 （温度和重量为标称值。）本研究的目的是确定化学反应性熔体，PbLi合金，惰性材料Pb.rnH_2和水溶液的燃料-冷却剂相互作用（FCI）行为之间的差异。既有潜在危险的LiOH，是由合金生成的，但与Pb无关。尽管该合金发生了明显的化学反应，但未测量到能量的增加，也未发现失控金属着火的迹象。这些观察结果可以解释为在冲击管几何形状中看到的典型的FCI现象，即水柱撞击在熔体-水界面的热相互作用驱动了熔体的流体动力强迫混合。化学反应似乎遵循了这种与融水的接触，从而缓和而不是增强了能量。

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