期刊论文

Zhao, Peng Cheng;Yu, T;Zhao, PC

英文

Annals of Nuclear Energy

0306-4549

2023

182

109584

10.1016/j.anucene.2022.109584

In the dual-loop natural circulation system, an asymmetric heat load difference causes asymmetric disturbance, which destabilizes the natural circulation in each loop and leads to the formation of a new stable natural circulation state. Therefore, when analyzing and simulating the anti-disturbance capacity of the system under an asymmetric heat load, the total power of the reactor must remain unchanged. At any time, the dual-loop natural circulation system exhibits a certain heat disturbance ( ΔQ

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Heat exchangers in natural circulation LBE-cooled fast reactors are used in harsh conditions such as extreme temperatures, significant pressure differences, high density, and corrosive environments. Therefore, heat transfer tube rupture and flow blockage accidents are common and result in an asymmetric heat load or asymmetric resistance thereby significantly impacting the safe and stable operation of the reactor. In this study, SNCLFR-10 has been used as the reference reactor and FLUENT simulation is used to establish the LBE-cooled dual-loop natural circulation system. Consequently, a theoret...