Analysis of Fukushima unit 2 accident considering the operating conditions of RCIC system

被引：9

作者：

Kim, Sung Il ^{[1
]}

Park, Jong Hwa ^{[1
]}

Ha, Kwang Soon ^{[1
]}

Cho, Song-Won ^{[1
]}

Song, JinHo ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Severe Accid & PHWR Safety Res Div, 989-111 Daedeok Daero, Taejon 305353, South Korea

来源：

NUCLEAR ENGINEERING AND DESIGN | 2016年 / 298卷

基金：

新加坡国家研究基金会;

关键词：

TERM STATION BLACKOUT; BWR; PRESSURE;

D O I：

10.1016/j.nucengdes.2015.12.024

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：

A severe accident in Fukushima occurred on March 11, 2011 and units 1, 2 and 3 were damaged severely. A tsunami following an earthquake made the supply of electricity power stop, and the safety systems, which use AC or DC power in plants could not operate properly. It is supposed that the degree of core degradation of unit 2 is less serious than in the other plants, and it was estimated that the operation of reactor core isolation cooling (RCIC) system at the initial stage of the accident minimized the core damage through decay heat removal. Although the operating conditions of the RCIC system are not known clearly, it can be important to analyze the accident scenario of unit 2. In this study, best case of the Fukushima unit 2 accident was presented considering the operating conditions of the RCIC system. The effects of operating condition on core degradation and fission product release rate to environment were also examined. In addition, importance of torus room flooding level in the accident analysis was discussed. MELCOR 1.8.6 was used in this research, and the geometries of plant and operating conditions of safety system were obtained from TEPCO through OECD/NEA BSAF Project. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：183 / 191

页数：9

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