Pyrometallurgical reprocessing technology is currently being focused in many countries for closing actinide fuel cycle because of its favorable economic potential and an intrinsic proliferation-resistant feature due to the inherent difficulty of extracting weapons-usable plutonium. The feasibility of pyrometallurgical reprocessing has been demonstrated through many laboratory scale experiments. Hence the development of the engineering technology necessary for pyrometallurgical reprocessing is a key issue for industrial realization. The development of high-temperature transport technologies for molten salt and liquid cadmium is crucial for pyrometallurgical processing; however, there have been very few transport studies on high-temperature fluids. In this study, a salt transport test rig and a metal transport test rig were installed in an argon glove box with the aim of developing technologies for transporting molten salt and liquid cadmium at approximately 773 K. It was demonstrated that; using a centrifugal pump, molten salt at 773 K could be transported at a controlled rate from 4 to 8 dm3/min against a 1 m head. The transport behavior of the molten salt was found to be similar to that of water, and could be predicted from their similarity of kinematic viscosity. On the other hand, the transportation of liquid cadmium at approximately 700 K could be controlled at a rate of 0.5 to 1.6 dm3/min against a 1.6 m head using the centrifugal pump.
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16th International Conference on Nuclear Engineering
May 11–15, 2008
Orlando, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4815-9
PROCEEDINGS PAPER
Development of High Temperature Transport Technologies for Molten Salt and Liquid Cadmium in Pyrometallurgical Reprocessing
Takatoshi Hijikata,
Takatoshi Hijikata
Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan
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Tadafumi Koyama
Tadafumi Koyama
Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan
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Takatoshi Hijikata
Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan
Tadafumi Koyama
Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan
Paper No:
ICONE16-48355, pp. 73-82; 10 pages
Published Online:
June 24, 2009
Citation
Hijikata, T, & Koyama, T. "Development of High Temperature Transport Technologies for Molten Salt and Liquid Cadmium in Pyrometallurgical Reprocessing." Proceedings of the 16th International Conference on Nuclear Engineering. Volume 2: Fuel Cycle and High Level Waste Management; Computational Fluid Dynamics, Neutronics Methods and Coupled Codes; Student Paper Competition. Orlando, Florida, USA. May 11–15, 2008. pp. 73-82. ASME. https://doi.org/10.1115/ICONE16-48355
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