Analytical study of coolability of ex-vessel debris beds with downcomer(s)

被引：0
|
作者：
Li, GJ [1 ]
Yang, ZL [1 ]
Li, HX [1 ]
Sehgal, BR [1 ]
机构：
[1] Royal Inst Technol, Div Nucl Power Safety, SE-10044 Stockholm, Sweden
来源：
MULTIPHASE FLOW AND HEAT TRANSFER | 1999年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Previous experiments have shown that the dryout heat flux of debris beds can be significantly enhanced by providing the debris bed with coolant through downcomer(s) embedded within:the bed. In this paper a simple model has been developed for the thermal hydraulics of a debris bed-with downcomer(s). It is shown that the enhancement of the dryout heat flux by using:downcomer(s) is affected by the particle size, bed height and porosity. The present model is compared with the available data, and good agreement is achieved. However more data are needed to validate the present model.
引用
收藏
页码：525 / 532
页数：8
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