FHR在全厂断电事故下对RVACS散热能力的要求

氟盐冷却高温堆(Fluoride salt-cooled High-temperature Reactor,FHR)是一种采用包覆颗粒燃料、高温熔融氟盐冷却剂的先进反应堆。部分FHR概念采用了反应堆容器辅助冷却系统(Reactor Vessel Auxiliary Cooling System,RVACS)导出事故下的堆芯余热。RVACS通过导热、对流换热、辐射换热等非能动过程,在事故发生时将堆芯余热排出至大气中。本文采用中国科学院上海应用物理研究所设计的10 MW FHR作为基准,利用RELAP5-MS程序,对其在全厂断电事故下的瞬态过程进行了模拟,验证了RVACS的余热导出能力。本文进一步...

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Published in核技术 Vol. 40; no. 9; pp. 77 - 83
Main Author 赵晶 王凯 焦小伟 何兆忠 陈堃
Format Journal Article
LanguageChinese
Published 中国科学院上海应用物理研究所 嘉定园区 上海 201800 2017
中国科学院大学 北京 100049%中国科学院上海应用物理研究所 嘉定园区 上海 201800
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ISSN0253-3219
DOI10.11889/j.0253-3219.2017.hjs.40.090603

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Summary:氟盐冷却高温堆(Fluoride salt-cooled High-temperature Reactor,FHR)是一种采用包覆颗粒燃料、高温熔融氟盐冷却剂的先进反应堆。部分FHR概念采用了反应堆容器辅助冷却系统(Reactor Vessel Auxiliary Cooling System,RVACS)导出事故下的堆芯余热。RVACS通过导热、对流换热、辐射换热等非能动过程,在事故发生时将堆芯余热排出至大气中。本文采用中国科学院上海应用物理研究所设计的10 MW FHR作为基准,利用RELAP5-MS程序,对其在全厂断电事故下的瞬态过程进行了模拟,验证了RVACS的余热导出能力。本文进一步研究了高反应堆功率情况下的全厂断电事故的瞬态过程,探讨了不同反应堆功率的FHR对RVACS散热能力的要求。
Bibliography:ZHAO Jing1,2, WANG Kai1, JIAO Xiaowei1,2, HE Zhaozhong1, CHEN Kun1(1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;2.University of Chinese Academy of Sciences, Beijing 100049, China)
31-1342/TL
FHR; RVACS; RELAP5-MS; Station blackout
Background: Reactor vessel auxiliary cooling system(RVACS) is a passive residual heat removal system applied to thorium molten salt reactor-solid fuel(TMSR-SF1). There are difficulties to use it to high-power reactor with its multifunction reactor vessel. To maximize vessel integrity, vessel should be minimized. Purpose: This study aims to verify the heat-discharge capability of the RVACS under station blackout accident(SBO). Methods: With a 10-MW fluoride salt-cooled high-temperature reactor(FHR) designed by Shanghai Institute of Applied Physics of Chinese Academy of Sciences as the baseline design, the RELAP5-MS code was adopted to simulate the transients during a SBO. Results: A scope of RVACS power for heat dissipation
ISSN:0253-3219
DOI:10.11889/j.0253-3219.2017.hjs.40.090603