Phenomena identification and ranking table of station blackout accidents for China sodium cooled fast reactor

被引：5
作者：
Zhou, Lei [1 ]
Zhang, Dalin [1 ]
Wang, Shibao [1 ]
Liu, Yapeng [1 ]
Wang, Chenglong [1 ]
Tian, Wenxi [1 ]
Qiu, Suizheng [1 ]
Su, G. H. [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Nucl Sci & Technol, Shanxi Key Lab Adv Nucl Energy & Technol, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China
来源：
ANNALS OF NUCLEAR ENERGY | 2021年 / 157卷
关键词：
Phenomena identification and ranking table; Station blackout; China pool type sodium cooled fast reactor; THACS; SMALL-BREAK LOCA; VALIDATION; SYSTEM;
D O I：
10.1016/j.anucene.2021.108240
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In order to satisfy analysis of safety requirements for China pool type sodium-cooled fast reactor, a phenomena identification and ranking table (PIRT) is developed for station blackout (SBO) accidents by 15 experts. The SBO accidents could be divided into two phases, i.e. phase 1: force circulation and phase 2: natural circulation, and the most important phenomena but maximum disagreements among experts are the gap conductance model between fuel and clad, the inter wrapper flow, the heat transfer between coolant and inter wrapper. Those phenomena should be carefully assessed and done more theorical and experiment analysis to develop more accurate and realistic model, to reduce uncertainty of safety analysis. The PIRT could be also used for developing verification and validation matrix for thermal hydraulic safety code, guiding researchers and designers to conduct experiments to close technological gap and giving related researcher and designer a comprehensive understanding for pool-type sodium-cooled fast reactor. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：12
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