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长循环铅冷快堆堆芯装载方法研究

夏榜样 徐灿 秦天骄 李晴

夏榜样, 徐灿, 秦天骄, 李晴. 长循环铅冷快堆堆芯装载方法研究[J]. 核动力工程, 2023, 44(6): 260-265. doi: 10.13832/j.jnpe.2023.06.0260
引用本文: 夏榜样, 徐灿, 秦天骄, 李晴. 长循环铅冷快堆堆芯装载方法研究[J]. 核动力工程, 2023, 44(6): 260-265. doi: 10.13832/j.jnpe.2023.06.0260
Xia Bangyang, Xu Can, Qin Tianjiao, Li Qing. Study on Loading Pattern for Long-cycle Lead-cooled Fast Reactor Core[J]. Nuclear Power Engineering, 2023, 44(6): 260-265. doi: 10.13832/j.jnpe.2023.06.0260
Citation: Xia Bangyang, Xu Can, Qin Tianjiao, Li Qing. Study on Loading Pattern for Long-cycle Lead-cooled Fast Reactor Core[J]. Nuclear Power Engineering, 2023, 44(6): 260-265. doi: 10.13832/j.jnpe.2023.06.0260

长循环铅冷快堆堆芯装载方法研究

doi: 10.13832/j.jnpe.2023.06.0260
详细信息
    作者简介:

    夏榜样(1979—),男,研究员级高级工程师,现主要从事反应堆物理研究,E-mail: xiabangyang@163.com

  • 中图分类号: TL425

Study on Loading Pattern for Long-cycle Lead-cooled Fast Reactor Core

  • 摘要: 铅冷快堆具有系统简单、自然安全的特点,是最具发展潜力与现实性的四代核电堆型之一。由于铅冷却剂具有密度大、运行温度高、不透明等特性,导致铅冷快堆倒换料技术难度大、过程复杂且耗时,影响核电厂的经济性和安全性,因而增加循环长度、减少倒换料次数,成为大型商用铅冷快堆设计研究的重要内容。本文从工程需求出发分析了核燃料类型、燃料元件及组件形式、反射层材料、控制棒布置方式、易裂变核素再生区设置方法等因素对铅冷快堆循环长度的影响规律,建立铅冷快堆长循环堆芯装载方法,为大型商用铅冷快堆堆芯物理设计优化提供参考。

     

  • 图  1  燃料元件横截面示意图

    Figure  1.  Schematic Diagram of Cross Section of Fuel Element      

    图  2  燃料组件栅格示意图

    Figure  2.  Schematic Diagram of Fuel Assembly Lattices

    图  3  堆芯径向布置示意图

    1—标准燃料组件;2—铅反射层组件;3—自动调节棒组;4—能动紧急停堆棒组;5—非能动紧急停堆棒组;6—燃耗补偿棒组

    Figure  3.  Schematic Diagram of Core Radial Configuration

    图  4  控制棒结构示意图

    Figure  4.  Schematic Diagram of Control Rod

    图  5  燃料元件轴向布置示意图

    Figure  5.  Schematic Diagram of Fuel Rod Axial Configuration

    图  6  堆芯有效增殖因子变化

    Figure  6.  Variation of Core keff with Burnup

    表  1  铅冷快堆堆芯主要参数

    Table  1.   Key Parameters of the Lead-cooled Fast Reactor Core        

    参数名 数值或描述
    热功率/MW 1500
    堆芯入口温度/℃ 420
    堆芯出口温度/℃ 540
    系统流量/(t·s−1) 84
    冷却剂流速/(m·s−1) ≤2.0
    燃料元件类型 棒元件
    燃料组件形式 正方形
    核燃料 U-20%Pu-10%Zr
    换料周期/a ≥10
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-05-05
  • 修回日期:  2023-08-20
  • 刊出日期:  2023-12-15

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