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	快堆严重事故工况下燃料组件盒破损机理的研究
	石晓波 ; 罗锐 ; 赵树峰 ; 王洲 ; SHI Xiao-bo ; LUO Rui ; ZHAO Shu-feng ; WANG Zhou
	2010-06-08 ; 2010-06-08
关键词	快堆 燃料组件盒破损 热侵蚀 完全堵流 Fast reactor,Hexcan wall failure,Thermal erosion,Total blockage TL433
其他题名	Study of Failure Mechanisms of Hexcan-Wall in Severe Accident Condition in Fast Reactors
中文摘要	在钠冷快增殖堆安全性分析中,六角形不锈钢燃料组件盒的破损时间和位置是一个重要的问题。对于严重的局部事故而言,钢盒破损的可能性基本上等同于事故向邻近燃料组件蔓延的可能性。本文以SCARABEE-N系列实验和SIMBATH系列实验为基础,对快堆严重事故工况下六角形钢组件盒的破损机理进行了研究。对于冷却状况良好的组件盒,提出了一种新的熔穿机理:局部热侵蚀进而诱发钠侧局部烧干,随后发生熔穿。在此基础上,对中国实验快堆(CEFR)在单个燃料组件瞬间完全堵流事故工况下组件盒破损的时间进行了预测。预测结果为,相邻燃料组件的六角形钢盒应该在堵流后7.2～8s发生熔穿,随后事故开始向相邻的燃料组件蔓延。; In the frame work of liquid metal fast breeder reactor safety,the failure location and time of stainless steel hexcan wall is an important issue,because it may greatly influence the courses and consequences of many severe accidents.For severe local accidents,the possibility of hexcan-wall failure is almost the same as the possibility of propagation of the accidents to neighboring subassemblies.According to the SCARABEE-N and SIMBATH experiments,a new failure mechanism was proposed.The melt-through of a well-cooled hexcan-wall could be caused by the burn out of sodium resulting from the local thermal erosion on the steel wall.Accordingly,for the Chinese experimental fast reactor,under the total instantaneous single subassembly blockage accident,the failure of the neighboring hexcan-wall was predicted to occur at 7.2~8 s after blockage formation.Subsequently,the molten mixture in the boiling pool begins to penetrate into the neighboring bundles,and then the accident propagates to the neighboring subassemblies.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/50012]
专题	清华大学
推荐引用方式 GB/T 7714	石晓波,罗锐,赵树峰,等. 快堆严重事故工况下燃料组件盒破损机理的研究[J],2010, 2010.
APA	石晓波.,罗锐.,赵树峰.,王洲.,SHI Xiao-bo.,...&WANG Zhou.(2010).快堆严重事故工况下燃料组件盒破损机理的研究..
MLA	石晓波,et al."快堆严重事故工况下燃料组件盒破损机理的研究".(2010).

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