期刊
NUCLEAR ENGINEERING AND TECHNOLOGY
卷 49, 期 8, 页码 1727-1732出版社
KOREAN NUCLEAR SOC
DOI: 10.1016/j.net.2017.09.001
关键词
High temperature molten salt; LiCl-KCl eutectic salt; Nuclear fuel reprocessing; Pyroprocessing; Pumps; Transport properties
资金
- NNL Internal Research and Development programme
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 chlorideepotassium 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 degrees 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. (C) 2017 Korean Nuclear Society, Published by Elsevier Korea LLC.
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