摘要
基于华龙一号的堆芯设计参数,采用SCIENCE V2程序进行了堆芯装载方案的建模,同时计算分析了富集度相同的燃料组件、富集度不同的燃料组件两种类型共计20个燃料错装载的方案。计算结果表明,华龙一号堆芯燃料管理设计的各种错装载方案中,大多数在做启动物理试验的堆芯功率分布测量时能被发现,重新检查装料方案并更正,即可排除事故;未被发现的错装载方案中,绝大多数的焓升因子仍满足设计限值,不影响核电厂的运行安全;仅有个别的错装载方案,未被发现且焓升因子超过设计限值,但在正常运行工况下,满足相应的安全限制准则,且安全裕量较大。
Based on the core design parameters of Hualong-1,the SCIENCE V2 code was used to model the fuel loading.At the same time,20 inadvertent loading errors of two types of fuel assemblies with the same and different enrichment were calculated and analyzed.The calculation results show that most of the inadvertent loading errors can be found when measuring the power distribution of the reactor core during the start-up physical test,and accidents can be eliminated by re-checking the loading scheme and be corrected.In the undetected inadvertent loading errors,the majority of enthalpy rise factor still meet the design limit,which does not affect the operation of nuclear power plants.Only a few inadvertent loading errors have not been found and enthalpy rise factor exceeds the design limit,but under normal operation conditions,it meets the corresponding safety restriction criteria,and the safety margin is large.
作者
王昆鹏
赵传奇
邱国盛
宋维
攸国顺
冯进军
WANG Kun-peng;ZHAO Chuan-qi;QIU Guo-sheng;SONG Wei;YOU Guo-shun;FENG Jin-jun(Nuclear and Radiation Safety Center, Ministry of Ecological Environment, Beijing 100082,China)
出处
《科学技术与工程》
北大核心
2020年第22期9011-9016,共6页
Science Technology and Engineering
基金
国家科技重大专项(2019ZX06005001)。
关键词
华龙一号
燃料错装载事故
堆芯装载方案
Hualong-1
inadvertent loading error accident
core loading scheme
