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自然循环铅基快堆一回路系统驱动力的关键影响因素研究

Research on the Key Influencing Factors of the Driving Force of the Primary Loop System of the Natural Circulation Lead-based Fast Reactor
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摘要 为深入研究影响自然循环铅基快堆一回路系统驱动力的关键因素,以自然循环铅基快堆SNCLFR-10为研究对象构建描述反应堆一回路自然循环稳态运行模型;从理论上量化分析冷/热池的热量传递、热源和热阱温度非线性分布、反应堆压力容器壁散热3种因素对自然循环能力的影响,并开展了相关数值模拟验证。结果表明,数值模拟结果与本研究理论计算值吻合较好;3种自然循环能力影响机制耦合作用将降低SNCLFR-10系统自然循环能力,导致自然循环流量与功率之间不再满足理论所得的1/3次方关系。 In order to deeply study the key factors affecting the driving force of the primary loop system of the natural circulation lead-based fast reactor,taking the natural circulation lead-based fast reactor SNCLFR-10 as the research object,a steady-state operation model describing the natural circulation of the primary loop of the reactor was constructed;The effects of heat transfer in cold/hot pool,nonlinear temperature distribution of heat source and heat sink and heat dissipation of reactor pressure vessel wall on natural circulation capacity are quantitatively analyzed theoretically,and relevant numerical simulation verification is carried out.The results show that the numerical simulation results are in good agreement with the theoretical calculation values in this study;the coupling effect of the three natural circulation capacity influencing mechanisms will reduce the natural circulation capacity of the SNCLFR-10 system,resulting in the relationship between natural circulation flow and power no longer satisfying the 1/3 power obtained by theory.
作者 翟鹏迪 朱恩平 赵鹏程 王天石 于涛 Zhai Pengdi;Zhu Enping;Zhao Pengcheng;Wang Tianshi;Yu Tao(School of Nuclear Science and Technology,University of South China,Hengyang,Hunan,421001,China;Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment,University of South China,Hengyang,Hunan,421001,China;Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)
出处 《核动力工程》 EI CAS CSCD 北大核心 2022年第3期66-73,共8页 Nuclear Power Engineering
基金 国家自然科学基金(11905101)。
关键词 自然循环驱动力 冷/热池传热 非线性温度分布 反应堆压力容器壁散热 关键影响因素 Natural circulation driving force Heat transfer in cold/hot pool Non-linear temperature distribution Heat dissipation from the reactor pressure vessel wall Key influencing factors
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