Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (5): 050601 doi: 10.13538/j.1001-8042/nst.26.050601

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Analysis of fixation method of fuel assembly for lead-alloy cooled reactor

HAN Qian,1, 2 WU Qing-Sheng, 2 CHEN Jian-Wei,2 MEI Hua-Ping , 2 HUANG Qun-Ying 2   

  1. 1University of Science and Technology of China, Hefei 230027, China
    2Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China
  • Contact: HAN Qian
  • Supported by:

    Supported by the Strategic Priority Science & Technology Program of the
    Chinese Academy of Sciences (No. XDA03040000)

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HAN Qian, WU Qing-Sheng, CHEN Jian-Wei, MEI Hua-Ping, HUANG Qun-Ying . Analysis of fixation method of fuel assembly for lead-alloy cooled reactor.Nuclear Science and Techniques, 2015, 26(5): 050601     doi: 10.13538/j.1001-8042/nst.26.050601


As a potential candidate for generation IV reactors, lead-alloy cooled reactor has attracted much attentions in recent years. The China LEAd-based research Reactor (CLEAR) is proposed as the primary choice for the accelerator driven subcritical system project launched by Chinese Academy of Sciences. Lead-bismuth eutectic (LBE) is selected as the coolant of CLEAR owing to its efficient heat conductivity properties and high production rate of neutrons. In order to compensate the buoyancy due to the high density of lead-alloy, fixation methods of fuel assembly (FA) have become a research hotspot worldwide. In this paper, we report an integrated system of ballast and fuel element for CLEAR FA. It guarantees the correct positioning of each FA in normal and refueling operations. Force calculation and temperature analysis prove that the FA will be stable and safe under CLEAR operation conditions.

Key words: Lead-alloy cooled reactor, Fuel assembly (FA), Fixation methods, Ballast