Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (6): 60601-060601.doi: 10.11889/j.0253-3219.2018.hjs.41.060601

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Numerical analysis and experimental research on heat transfer equilibrium state of molten salt frozen wall

SUN Bo1,2, ZHOU Jinhao1,2,3, DOU Qiang1,2, HU Weiqing1,2, LI Qingnuan1,2   

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2 Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China;
    3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-05-19 Revised:2017-09-28 Online:2018-06-10 Published:2018-06-06
  • Supported by:
    Supported by the Strategic Pilot Science and Technology Project of Chinese Academy of Sciences (No.XDA02030000)

Abstract: [Background] The molten salt frozen-wall technique is effective to protect the equipment involved during dry reprocessing of spent nuclear fuel in the molten salt reactor from chemical corrosion (serious corrosion).[Purpose] The thickness of frozen wall and the temperature distribution of the molten salt have a great influence on the protective effect and related dry processing parameters.[Methods] Based on the central cooled experimental apparatus of frozen wall, the maintenance of the frozen wall was carried out using FLiNaK molten salt medium.[Results] The thickness of the frozen wall and the distribution of temperature in reactor were obtained by the method of air cooling in the center of the cylinder. The heat transfer equilibrium condition of the frozen wall was calculated by numerical simulation, the computed results agreed well with the experimental results.[Conclusion] The experimental conditions for suitable thickness of frozen wall were obtained. The control technology of the frozen wall thickness and temperature field distribution can provide reference for the design of vessel with frozen wall.

Key words: Frozen wall, Dry reprocessing, Molten salt reactor

CLC Number: 

  • TL3