Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (10): 100501-100501.doi: 10.11889/j.0253-3219.2019.hjs.42.100501

• NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Applicability analysis of aerosol resuspension model based on STORM experiment

Liwen HE,Lili TONG(),Xuewu CAO   

  1. School of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-05-27 Revised:2019-07-18 Online:2019-10-13 Published:2019-10-16
  • Contact: Lili TONG E-mail:lltong@sjtu.edu.cn
  • Supported by:
    National Major Science and Technology Project(2017ZX06004006-003)

Abstract: Background

During a severe nuclear reactor accident, the aerosol deposited in the containment may resuspend due to airflow disturbance. It would increase the source terms in the containment and may eventually result in an increase in source terms that are released into the environment.

Purpose

This study aims to analyse the applicability of aerosol resuspension force balance models based on the STORM (Simplified Test Of Resuspension Mechanism) experiment.

Methods

Firstly, the analytical model of the experiment was established, and then the influence of the disturbing force coefficient, the deposition surface roughness in the Wichner model and the micro-protrusions distance in Michael model on the deposition surface were studied. The applicability of the models was evaluated by comparison between models prediction results and the experimental measurements.

Results <i>&</i> Conclusions

Analysis results show that the Wichner force balance model is more suitable for predicting the resuspension behavior in a wide range of disturbed airflow velocity with small aerosol particle size.

Key words: Resuspension, Force balance, Airflow disturbance

CLC Number: 

  • TL99