Micro-bubble emission boiling from horizontal and vertical surfaces to subcooled parallel flow water
Micro-bubble emission boiling from horizontal and vertical surfaces to subcooled parallel flow water
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DOI：
10.1002/htj.10077
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发表时间：
2003-03
影响因子：
1.7
通讯作者：
S. Kumagai;R. Kubo;T. Kawasaki
中科院分区：
文献类型：
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作者：
S. Kumagai;R. Kubo;T. Kawasaki
核聚变反应堆的高热发电设备要求热流密度大于10 mW/m~2。在某些水过冷和流速条件下，过渡沸腾区域出现了极高的热流密度沸腾。这种沸腾过程被称为微泡发射沸腾(MEB)，因为许多微泡伴随着巨大的声音从换热表面喷出。研究的目的是获得水平和垂直受热面与过冷水平行流动的MEB的换热性能，并与该系统的换热系数进行比较。根据流动速度和液体过冷度的不同，观察到三种具有不同换热性能和气泡行为的微循环。《威利期刊》，32(2)：130-140,2003；在线发表在《威利国际科学》(www.intercience.wiley.com)上。DOI 10.1002/htj.10077
Heat removal of more than 10 MW/m2 in heat flux has been required in high-heat-generation equipment in nuclear fusion reactors. In some conditions of water subcooling and velocity, there appears an extraordinary high heat flux boiling in the transition boiling region. This boiling regime is called micro-bubble emission boiling (MEB) because many micro-bubbles are spouted from the heat transfer surface accompanying a huge sound. The study intent is to obtain heat transfer performance of MEB in horizontal and vertical heated surfaces to parallel flow of subcooled water, comparing with CHF of this system. Three types of MEB with different heat transfer performance and bubble behavior are observed according to the flow velocity and liquid subcooling. © 2003 Wiley Periodicals, Inc. Heat Trans Asian Res, 32(2): 130–140, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10077