Transfer characteristics of a lithium chloride–potassium chloride molten salt

Nuclear Engineering and Technology

卷:49

Eve Mullen¹  Ross Harris¹  Chris Rhodes²  Dave Graham²  Zara Hodgson² 

[1] Department of Engineering Design, National Nuclear Laboratory, Chadwick House, Warrington Road, Birchwood Park, Warrington, WA3 6AE, United Kingdom;

[2] Department of Plant and Process Engineering, National Nuclear Laboratory, Chadwick House, Warrington Road, Birchwood Park, Warrington, WA3 6AE, United Kingdom;

关键词: High temperature molten salt;    LiCl–KCl eutectic salt;    Nuclear fuel reprocessing;    Pyroprocessing;    Pumps;    Transport properties;   

DOI  :  10.1016/j.net.2017.09.001

来源: DOAJ

【 摘 要 】

Pyroprocessing is an alternative method of reprocessing spent fuel, usually involving the dissolving spent fuel in a molten salt media. The National Nuclear Laboratory designed, built, and commissioned a molten salt dynamics rig to investigate the transfer characteristics of molten lithium chloride–potassium chloride eutectic salt. The efficacy and flow characteristics of a high-temperature centrifugal pump and argon gas lift were obtained for pumping the molten salt at temperatures up to 500°C. The rig design proved suitable on an industrial scale and transfer methods appropriate for use in future molten salt systems. Corrosion within the rig was managed, and melting techniques were optimized to reduce stresses on the rig. The results obtained improve the understanding of molten salt transport dynamics, materials, and engineering design issues and support the industrialization of molten salts pyroprocessing.

【 授权许可】

Unknown