Design and Tests of a Device for the Generation of Controlled Condensation Implosion Events
Design and Tests of a Device for the Generation of Controlled Condensation Implosion Events
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受控凝结内爆事件发生装置的设计与测试
DOI：
10.1080/01457630500458047
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Šeporaitis
中科院分区：
文献类型：
--
作者：
K. Almenas;R. Pabarčius;M. Šeporaitis
已经建造了一个试验设施，其目的是探索一个热工水力部件（“脉冲发生器”）的特性，其中冷凝内爆事件可以以受控和可重复的方式启动。本文总结了在水平圆柱形脉冲发生器中进行的实验。为了设计的目的，定义了一个修改的雅各布数准则。它是测量脉冲发生器水冷凝所有初始脉冲发生器蒸汽的能力的指标，其考虑了脉冲发生器金属的热容量和通过冷凝对水的加热。测试表明，为了实现超过气相的惯性时间常数的快速增长的冷凝速率，修改的雅各布数必须接近5的值。对于0.027 m3体积的圆柱形脉冲发生器，这可以在蒸汽包含残余量的空气（大约0.02至0.03摩尔分数）时实现。本文介绍了脉冲发生器作为液体侧湍流的函数的动态响应的实验结果。
A test facility has been constructed of which the purpose is to explore the characteristics of a thermo-hydraulic component (a “pulser”) where condensation implosion events can be initiated in a controlled and reproducible manner. This paper summarizes experiments conducted in a horizontal cylindrical pulser. For design purposes, a modified Jakobs number criterion was defined. It is an index measuring the capability of the pulser water to condense all of the initial pulser steam that takes into account the heat capacity of the pulser metal and heating of water by condensation. The tests showed that in order to achieve a rapidly growing condensation rate that exceeds the inertial time constant of the vapor phase, the modified Jakobs number has to approach a value of 5. For a 0.027 m3 volume cylindrical pulser, this can be achieved when the steam contains residual amounts of air (on the order of 0.02 to 0.03 mole fraction). The paper presents experimental results characterizing the dynamic response of the pulser as a function of the liquid side turbulence.