• High Power Laser and Particle Beams
  • Vol. 34, Issue 5, 056003 (2022)
Wenjie Ding, Shaohua Wang, Jiao Gao, Haibing Guo, Jimin Ma, and Zhiyong Liu
Author Affiliations
  • Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900, China
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    DOI: 10.11884/HPLPB202234.210508 Cite this Article
    Wenjie Ding, Shaohua Wang, Jiao Gao, Haibing Guo, Jimin Ma, Zhiyong Liu. Safety boundary of flow channel partial blockage in plate-type fuel assembly[J]. High Power Laser and Particle Beams, 2022, 34(5): 056003 Copy Citation Text show less
    Sectional view of JRR-3M standard fuel assembly
    Fig. 1. Sectional view of JRR-3M standard fuel assembly
    Geometry model
    Fig. 2. Geometry model
    Analysis results of non-adjacent channel complete blockage accident
    Fig. 3. Analysis results of non-adjacent channel complete blockage accident
    Analysis results with plug in the middle
    Fig. 4. Analysis results with plug in the middle
    Analysis results with plug in one side
    Fig. 5. Analysis results with plug in one side
    materialdensity/(kg·m−3) specific heat/ (J·kg−1·K−1) thermal conductivity/(W·m−1·K−1)
    6061Al2700896170
    U3Si2-Al 6000406.732
    Table 1. Thermophysical parameters of solid materials
    number of gridspressure drop/kPamean convective heat transfer coefficient / (W·m−2·K−1) maximum fuel temperature /K
    10446657.9933196.41339.65
    20050057.5233197.97339.44
    45385557.3333120.20339.92
    Table 2. Average assembly calculation results under different grid sizes
    No.blockage rate/%plug positionTfluid,max/K Tfuel,max/K Vch/(m·s−1) Tout/K
    130middle337.82365.615.29329.12
    235middle340.07368.325.07329.88
    340middle343.56371.824.89330.68
    445middle345.68375.514.66331.76
    550middle358.15390.594.39333.14
    655middle368.59397.684.10335.04
    760middle383.58413.683.75337.67
    830side345.35402.035.44328.44
    935side369.32415.485.29329.13
    1040side387.61436.605.08330.02
    Table 3. Analysis results of different blockage rates and positions
    Wenjie Ding, Shaohua Wang, Jiao Gao, Haibing Guo, Jimin Ma, Zhiyong Liu. Safety boundary of flow channel partial blockage in plate-type fuel assembly[J]. High Power Laser and Particle Beams, 2022, 34(5): 056003
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