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首页> 外文期刊>Nuclear Technology >Development of a New Method for Simulating Gas-to-Particle Conversion During Sodium Pool Fires in SFR Containment
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Development of a New Method for Simulating Gas-to-Particle Conversion During Sodium Pool Fires in SFR Containment

机译：开发SFR遏制中钠池燃烧过程中的气于粒子转化的新方法

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摘要

Sodium combustion oxide aerosols are the main carriers of radioactive materials in a sodium-cooled fast reactor (SFR) during sodium fire accidents. Therefore, it is of great significance to simulate aerosol behavior in sodium pool fires to evaluate radioactive source terms in the containment or environment. In this work, a numerical method has been developed to simulate sodium oxide aerosol behavior during sodium pool fires. The Classical Nucleation Theory has been taken into account to simulate gas-to-particle conversion (GPC). The model has been evaluated theoretically in 280 cases with three main parameters: sodium pool temperature, pool diameter, and oxygen concentration. The correlation established by fitting data points is associated with the sodium evaporation rate. The SFA code has been developed based on advanced sodium pool combustion and aerosol models coupled with GPC correlations. In comparison with the experimental data, the code-calculated average atmospheric temperature, airborne aerosol concentration, and particle size are in good agreement with the data, which indicate that the method is reliable and can be applied in code development in the future.
机译：钠燃烧氧化物气溶胶是在火灾事故中在钠冷却的快速反应器（SFR）中的放射性物质的主要载体。因此，模拟钠池中的气溶胶行为是具有重要意义，以评估遏制或环境中的放射源术语。在这项工作中，已经开发了一种数值方法来模拟钠池火灾期间的氧化钠气溶胶行为。已经考虑了典型的成核理论以模拟气体颗粒转化（GPC）。该模型在理论上已经在280例具有三个主要参数：钠池温度，池径和氧气浓度的情况下进行了评估。通过拟合数据点建立的相关性与蒸发速率相关。 SFA代码已基于高级钠池燃烧和加气孔模型开发，加上GPC相关性。与实验数据相比，代码计算的平均大气温度，空气传播的气溶胶浓度和粒度与数据吻合良好，这表明该方法可靠并且可以在未来的代码开发中应用。

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  • 来源
    《Nuclear Technology》 |2020年第10期|1481-1493|共13页
  • 作者

    Hongping Sun; Jian Deng; Dahuan Zhu; Yapei Zhang; Wenxi Tian; Suizheng Qiu; G. H. Su;

  • 作者单位

    Xi'an Jiaotong University School of Nuclear Science and Technology Science and Technology on Reactor System Design Technology Laboratory Xi'an 710049 China;

    Nuclear Power Institute of China Science and Technology on Reactor System Design Technology Laboratory Chengdu 610041 China;

    Nuclear Power Institute of China Science and Technology on Reactor System Design Technology Laboratory Chengdu 610041 China;

    Xi'an Jiaotong University School of Nuclear Science and Technology Science and Technology on Reactor System Design Technology Laboratory Xi'an 710049 China;

    Xi'an Jiaotong University School of Nuclear Science and Technology Science and Technology on Reactor System Design Technology Laboratory Xi'an 710049 China;

    Xi'an Jiaotong University School of Nuclear Science and Technology Science and Technology on Reactor System Design Technology Laboratory Xi'an 710049 China;

    Xi'an Jiaotong University School of Nuclear Science and Technology Science and Technology on Reactor System Design Technology Laboratory Xi'an 710049 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sodium pool fire; gas-to-particle conversion; aerosol behavior; numerical simulation;

    机译：钠池火;气于颗粒转化;气溶胶行为;数值模拟;

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