Nuclear Techniques ›› 2020, Vol. 43 ›› Issue (7): 70603-070603.doi: 10.11889/j.0253-3219.2020.hjs.43.070603

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Applicability analysis of aerosol reentrainment model based on revent experiment

Liwen HE1,Liqiang HOU2,Lili TONG1(),Xuewu CAO1   

  1. 1.School of Mechanical and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
    2.Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, China
  • Received:2019-12-31 Revised:2020-04-20 Online:2020-07-15 Published:2020-07-16
  • Contact: Lili TONG E-mail:lltong@sjtu.edu.cn
  • About author:HE Liwen, female, born in 1996, graduated from Northeast University in 2017, doctoral student, focusing on nuclear reactor safety
  • Supported by:
    National Science and Technology Major Project(2017ZX06004006-003)

Abstract: Background

During nuclear power plant accident, operations such as containment depressurization will lead to strong evaporation of liquid. The phenomenon that aerosol in the liquid phase is entrained back into the atmosphere under the action of steam is called re-entrainment. It will increase the risk of radioactive sources leaking into the environment.

Purpose

This study aims to evaluate the applicability of Kataoka & Ishi's and Cosandey's aerosol re-entrainment models based on the Revent experiment results.

Methods

First of all, these models were converted into programming languages. Analytical models were established for the experiments, and simulation studies were carried out under experimental condition of different pressure and gas composition. Then the results of model prediction and experimental measurement were compared and analyzed to evaluate the applicability of these models for aerosol re-entrainment behaviour.

Results & Conclusions

Cosandey's model is more suitable for predicting the re-entrainment behavior of different aerosol particles in the containment during nuclear power plants accident.

Key words: Re-entrainment, Soluble aerosol, Solid aerosol, Pure steam, Air-steam

CLC Number: 

  • TL99