During a nuclear power plant severe accident, discharging gas mixture into the spent-fuel pool is an alternative containment depressurization measurement through which radioactive aerosols can be scrubbed. However, it is necessary to develop a code for analyzing the decontamination factor of aerosol pool scrubbing. This article has established the analysis model considering key aerosol pool scrubbing mechanisms and introduced the Akita bubble size relationship. In addition, a code for evaluating the decontamination factor of aerosol pool scrubbing was established. The Advanced Containment Experiment and Light Water Reactor Advanced Containment Experiment were simulated with the code considering different bubble sizes of the Akita model and MELCOR default value to verify the suitability of the Akita bubble size model for simulating aerosol pool scrubbing. Furthermore, the simulation results were compared with the results analyzed by MELCOR code and COCOSYS code from literature, and equivalent predictive ability was observed. In addition, a sensitivity analysis on bubble size was conducted, and the contribution of different behaviors and mechanisms has been discussed. Finally, the bubble breakup equation was revised and verified with the conditions of the multi-hole bubbler in the Advanced Containment Experiment and Light Water Reactor Advanced Containment Experiment.

在核电站发生严重事故期间，将混合气体排放到乏燃料池中是一种替代的安全壳降压测量，通过它可以洗涤放射性气溶胶。但是，有必要制定一个代码来分析气溶胶池洗涤的去污因子。本文建立了考虑关键气溶胶池洗涤机制的分析模型，并介绍了秋田气泡大小关系。此外，还建立了评价气溶胶池洗涤去污因子的规范。高级密闭实验和轻水反应堆高级密闭实验使用代码进行模拟，考虑不同的秋田模型气泡尺寸和 MELCOR 默认值，以验证秋田气泡尺寸模型对模拟气溶胶池洗涤的适用性。此外，将仿真结果与文献中的MELCOR代码和COCOSYS代码分析的结果进行了比较，观察到了相当的预测能力。此外，对气泡大小进行了敏感性分析，并讨论了不同行为和机制的贡献。最后，结合先进密闭实验和轻水反应堆先进密闭实验中多孔起泡器的条件对气泡破裂方程进行了修正和验证。将仿真结果与文献中的MELCOR代码和COCOSYS代码分析的结果进行对比，观察到了相当的预测能力。此外，对气泡大小进行了敏感性分析，并讨论了不同行为和机制的贡献。最后，结合先进密闭实验和轻水反应堆先进密闭实验中多孔起泡器的条件对气泡破裂方程进行了修正和验证。将仿真结果与文献中的MELCOR代码和COCOSYS代码分析的结果进行对比，观察到了相当的预测能力。此外，对气泡大小进行了敏感性分析，并讨论了不同行为和机制的贡献。最后，结合先进密闭实验和轻水反应堆先进密闭实验中多孔起泡器的条件对气泡破裂方程进行了修正和验证。