Phenomena identification and ranking table for passive residual heat removal system in IRWST

被引：5
|
作者：
Li, Xiangbin [1 ,3 ]
Li, Nan [1 ,3 ]
Wang, ZhongYi [2 ,4 ]
Fu, Xiaoliang [2 ,4 ]
Lu, Daogang [1 ,3 ]
Yang, Yanhua [2 ,4 ]
机构：
[1] North China Elect Power Univ, Sch Nucl Sci & Engn, Beijing 102206, Peoples R China
[2] State Nucl Power Software Dev Ctr, Beijing 100029, Peoples R China
[3] Beijing Key Lab Pass Safety Technol Nucl Energy, Beijing 102206, Peoples R China
[4] Natl Energy Key Lab Nucl Power Software, Beijing 100029, Peoples R China
来源：
ANNALS OF NUCLEAR ENERGY | 2016年 / 94卷
关键词：
Passive residual heat removal system; (PRHR); Heat transfer mechanism; Phenomena identification and ranking table; (PIRT); SMALL-BREAK LOCA; SURFACE-ROUGHNESS; HORIZONTAL TUBE; POOL; DIAMETER; PITCH;
D O I：
10.1016/j.anucene.2016.02.018
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：
The passive residual heat removal system (PRHR) plays an important role in AP1000 passive core cooling system during non-LOCA accidents. The temperature of the water in the in-containment refueling water storage tank (IRWST) will increase while the decay heat is removed through the C-tube heat exchanger under accident conditions, resulting in the change of heat transfer mechanism. Therefore, it is essential to study the relevant pool boiling phenomenon in IRWST by means of experiment. To ensure to capture the major ones from a large amount of influence factors associated with pool boiling in IRWST, the phenomena identification and ranking table (PIRT) was analyzed in this paper. The PRHR system was firstly divided into different modules and components based on the PIRT flow chart, and then the general factors associated with local heat transfer were discussed under different pool boiling stages. Finally, the importance levels of different parameters on heat transfer process were evaluated, which can provide some reference for future design of new PRHR system. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：80 / 86
页数：7
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