Computational Sensitivity Study on Sodium-Water Reaction Phenomenon
Computational Sensitivity Study on Sodium-Water Reaction Phenomenon
复制标题
钠-水反应现象的计算灵敏度研究
DOI：
10.1080/18811248.2006.9711130
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发表时间：
2006
影响因子：
1.2
通讯作者：
A. Watanabe
中科院分区：
文献类型：
--
作者：
T. Takata;A. Yamaguchi;H. Ohshima;A. Watanabe
采用多维计算程序SERAPHIM对液态金属快堆（LMFR）蒸汽发生器中发生的换热管失效时钠-水反应（SWR）的敏感性进行了研究。本研究选取液钠初始压力、界面面积密度和氢氧化钠（NaOH）的蒸发量作为参数。从避免蒸汽发生器二次换热管因过热破裂而失效的角度出发，研究了参数对高温区（> ~ 1000℃）和最高温度发展的影响。在分析中，为了简单起见，假设水蒸气没有任何屏障地泄漏到液态钠中。结果表明，初始压力和界面密度对高温区影响较大，而对当前构型的最高温度几乎没有影响。至于氢氧化钠的蒸发，它影响的不是高温区，而是最高温度。由于蒸发的潜热，最高温度降低约200°C。得出结论，氢氧化钠的蒸发将是研究SWR中最高温度的关键现象。
Sensitivity studies on Sodium-Water Reaction (SWR), which will take place in a steam generator of Liquid Metal Fast Reactor (LMFR) when a heat transfer tube fails, have been carried out using a multi-dimensional computational code: SERAPHIM. An initial pressure of liquid sodium, an interfacial area density and an evaporation of sodium hydroxide (NaOH) are chosen as a parameter in this study. An influence of the parameter on a development of high temperature zone (>1000°C) and maximum temperature has been investigated from the perspective that one avoids a secondary heat transfer tube failure in a steam generator due to overheating rupture. In the analyses, it is assumed that water vapor leaks into liquid sodium without any barrier for a simplicity. As a result, it is found that the initial pressure and the interfacial area density affect the high temperature zone strongly, whereas they have almost no influence on the maximum temperature in the present configuration. As concerns the evaporation of sodium hydroxide, it influences not on the high temperature zone but on the maximum temperature. The maximum temperature decreases approximately 200°C due to latent heat of the evaporation. It is concluded that the evaporation of sodium hydroxide will be a key phenomenon for maximum temperature investigation in the SWR.
影响因子：
1.2
作者：
Koshizuka, S;Oka, Y
通讯作者：
Oka, Y