Robust technique using magnetohydrodynamics for safety improvement in sodium-cooled fast reactor

Nuclear Engineering and Technology

Jong Hui Lee¹  Il Seouk Park² 

[1] Department of Mechanical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, Republic of Korea;School of Mechanical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea;

关键词: Gas entrainment;    Vortex core;    Magnetohydrodynamics;    Sodium-cooled fast reactor;    Safety problem;   

DOI  :  

来源: DOAJ

【 摘 要 】

Among Generation IV reactors, the sodium-cooled fast reactor (SFR) is attracting attention as a system having great potential for commercial use. Gas entrainment is a thermal-hydraulic issue related to the safety problem of the reactor core in the SFR. Typically, a dipped plate or baffles are installed under the free surface to suppress gas entrainment. However, these approaches can cause gas entrainment in other locations and require many trial-and-error and verifications. In this study, a new strategy using magnetohydrodynamics to suppress gas entrainment in the SFR is proposed. In a counter-flow model, a judgment criterion of gas entrainment occurrence was developed for both water and liquid metal. Moreover, the gas entrainment can be completely suppressed by applying a magnetic field.

【 授权许可】

Unknown