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基于VHTRC的棱柱式高温气冷堆核设计程序验证

袁媛 张成龙 刘国明 堵树宏 霍小东 冯致远 杜夏楠

袁媛, 张成龙, 刘国明, 等. 基于VHTRC的棱柱式高温气冷堆核设计程序验证[J]. 强激光与粒子束, 2022, 34: 026017. doi: 10.11884/HPLPB202234.210362
引用本文: 袁媛, 张成龙, 刘国明, 等. 基于VHTRC的棱柱式高温气冷堆核设计程序验证[J]. 强激光与粒子束, 2022, 34: 026017. doi: 10.11884/HPLPB202234.210362
Yuan Yuan, Zhang Chenglong, Liu Guoming, et al. Validation of a nuclear code system for prismatic high temperature gas-cooled reactors based on the Very High Temperature Reactor Critical Assembly benchmark[J]. High Power Laser and Particle Beams, 2022, 34: 026017. doi: 10.11884/HPLPB202234.210362
Citation: Yuan Yuan, Zhang Chenglong, Liu Guoming, et al. Validation of a nuclear code system for prismatic high temperature gas-cooled reactors based on the Very High Temperature Reactor Critical Assembly benchmark[J]. High Power Laser and Particle Beams, 2022, 34: 026017. doi: 10.11884/HPLPB202234.210362

基于VHTRC的棱柱式高温气冷堆核设计程序验证

doi: 10.11884/HPLPB202234.210362
详细信息
    作者简介:

    袁 媛,yuanyuan@cnpe.cc

    通讯作者:

    刘国明,liugma@cnpe.cc

  • 中图分类号: TL329

Validation of a nuclear code system for prismatic high temperature gas-cooled reactors based on the Very High Temperature Reactor Critical Assembly benchmark

  • 摘要: 高温气冷堆是国际公认的固有安全性高的反应堆堆型。针对高温气冷堆包覆颗粒燃料引入的燃料组件的双重非均匀性以及棱柱式堆芯布置的非均匀性和强空间耦合效应,提出基于蒙特卡罗均匀化-确定论输运方法的RMC-SaraGR程序系统作为棱柱式高温气冷堆的核设计程序。基于日本棱柱式高温气冷堆临界实验装置VHTRC基准题,针对此套核设计程序系统开展了均匀化模型研究和初步验证。研究结果表明,基于蒙特卡罗均匀化方法,采用全堆模型、合适的能群结构和分区方式产生组件群常数,并经过超级等效均匀化方法进行等效均匀化修正,可以保证堆芯多群均匀计算具有较高的计算精度。
  • 图  1  VHTRC HP堆芯截面图

    Figure  1.  VHTRC HP core cross sections

    图  2  VHTRC HP堆芯调整后截面图

    Figure  2.  VHTRC HP core cross sections after modification

    图  3  SPH迭代计算中keff变化

    Figure  3.  keff in SPH iteration process

    表  1  调整截断石墨组件密度下的keff结果

    Table  1.   keff results of different density adjustment cases

    density adjustment factorkeffstandard deviation$\Delta {k}_{ {\rm{eff} }\text{} }$/10−5
    original1.008710.000260
    0.51.007650.00027−106
    0.61.008770.000246
    0.651.010310.00024160
    下载: 导出CSV

    表  2  不同能群结构下的keff

    Table  2.   keff of different energy group structure cases

    casekeffstandard deviation$\Delta {k}_{{\rm{eff}}}$/10−5
    CE1.009270.00011
    MG-4g1.028180.000091891
    MG-8g1.024760.000111549
    MG-16g1.023910.000111464
    MG-25g1.018440.00010917
    MG-40g1.017860.00011859
    MG-70g1.016610.00009734
    下载: 导出CSV

    表  3  不同分区下功率分布偏差

    Table  3.   Power discrepancy of different zoning cases

    No.relative error/%
    case 1case 2
    1 0.09 0.10
    2 −0.53 −0.54
    3 1.40 0.08
    4 0.09 0.47
    5 −0.20 −0.04
    6 0.52 0.38
    7 −0.34 −0.05
    8 −0.34 −0.12
    9 0.18 0.07
    10 −0.38 −0.18
    11 −0.48 −0.33
    12 0.20 0.12
    13 0.19 0.16
    下载: 导出CSV

    表  4  不同分区下的keff

    Table  4.   keff of different zoning cases

    keffstandard deviation
    case 1 1.00843 0.00010
    case 2 1.00951 0.00008
    下载: 导出CSV

    表  5  不同温度下keff

    Table  5.   keff of different temperature cases

    T/Kkeff
    benchmarkMVP-IIRMC-CESaraGR
    298.65 1.0115±0.0032 1.00706±0.00006 1.00927±0.00011 1.00981
    344.35 1.0046±0.0033 0.99998±0.00006 1.00263±0.00010 1.00219
    374.05 0.9994±0.0035 0.99527±0.00006 0.99778±0.00011 0.99713
    423.65 0.9906±0.0035 0.98700±0.00006 0.98925±0.00010 0.98823
    472.75 0.9820±0.0037 0.97893±0.00006 0.98140±0.00011 0.97957
    下载: 导出CSV

    表  6  截面插值计算结果

    Table  6.   Results with interpolation of cross sections

    T/Kkeff$\Delta {k}_{{\rm{eff}}}$/(10−5)
    RMC-CESaraGR-Interp
    298.65 1.00927±0.00011 1.00982 55
    344.35 1.00263±0.00010 1.00138 −125
    374.05 0.99778±0.00011 0.99642 −136
    400.00 0.99321±0.00011 0.99234 −87
    423.65 0.98925±0.00010 0.98787 −138
    472.75 0.98140±0.00011 0.97930 −210
    500.00 0.97677±0.00011 0.97491 −186
    下载: 导出CSV

    表  7  等温温度系数

    Table  7.   Isothermal reactivity coefficient

    case$ {\mathrm{\alpha }}_{\mathrm{T}} $/(10−5·K−1)
    benchmark−17.1
    MVP-II−16.4
    RMC-CE−16.2
    SaraGR−17.6
    SaraGR-Interp−17.7
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-08-23
  • 修回日期:  2021-10-09
  • 网络出版日期:  2021-10-21
  • 刊出日期:  2022-01-11

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