原子能科学技术Issue(5)：871-876,6.DOI:10.7538/yzk.2015.49.05.0871
蒸汽发生器传热管破损叠加全船断电事故放射性分析
Radioactive Analysis on Accident of SG-tube Rupture Coupled with Whole Ship Blackout
摘要
Abstract
Based on MELCOR which is the severe accident analysis integration program , the accident of SG‐tube rupture coupled with whole ship blackout was researched . Considering the release of radioactive material to other cabins in the case of SG‐tube rupture ,the release ,migration ,retention and distribution characteristics of the noble gas and CsI were analyzed . The result shows that steam pipe of the secondary loop would be overpressure failure and hydrogen combustion would result in overpressure failure of the adjacent ones of reactor cabin . At the end of the computation , about 99.61% of Xe and 49.96% of CsI in total cumulative amount were released from the reactor core .In cabin Ⅰ and Ⅱ ,the distribution fraction of Xe was 38% and 18% ,and it was 22.2% and 2.7% for CsI respectively .CsI was mainly resided in the bottom pool of the reactor cabin ,and a small amount of the CsI was leaked to the cabinⅡ .The anal‐ysis results will provide help for further analysis on the source dose and for emergency inside and outside the ship .关键词
MELCOR/蒸汽发生器传热管/全船断电/超压失效Key words
M ELCOR/SG-tube/w hole ship blackout/overpressure failure分类
能源科技引用本文复制引用
王伟,陈力生,张帆,刘海鹏..蒸汽发生器传热管破损叠加全船断电事故放射性分析[J].原子能科学技术,2015,(5):871-876,6.基金项目
国家自然科学基金资助项目 （）
