Abstract
If a steam generator tube rupture (SGTR) occurs during a severe accident in a nuclear power plant, radionuclides can be released to the atmosphere as an aerosol. The release of radioactive compounds can be prevented if these compounds are deposited on the tube walls. To quantify the fraction of aerosol particles retained in the SG and to effectively trap the radioactive aerosols during a severe accident, characteristics of particle impaction on surrounding SG tube walls must be evaluated. In this study, TiO2 agglomerates were used for experiments. Particle breakup and bounce behavior due to impaction were evaluated by measuring aerosol number concentration as a function of particle size and by analyzing transmission electron microscopy images before and after impaction.
Similar content being viewed by others
References
A. Auvinen, J.K. Jokiniemi, A. Lähde, T. Routamo, P. Lundström, H. Tuomisto, J. Dienstbier, S. Güntay, D. Suckow, A. Dehbi, M. Slootman, L. Herranz, V. Peyres, J. Polo, Steam generator tube rupture (SGTR) scenarios. Nucl. Eng. Des. 235, 457–472 (2005)
S. Güntay, D. Suckow, A. Dehbi, R. Kapulla, ARTIST: introduction and first results. Nucl. Eng. Des. 231, 109–120 (2004)
T. Lind, A. Dehbi, S. Güntay, Aerosol retention in the flooded steam generator bundle during SGTR. Nucl. Eng. Des. 241, 357–365 (2011)
US NRC, Severe accident risks: an assessment of five U.S. nuclear power plants, vol. 2. Sandia National Laboratory Report NUREG-1150 (1990)
M. Ihalainen, T. Lind, T. Torvela, K.E.J. Lehtinen, J. Jokiniemi, A method to study agglomerate breakup and bounce during impaction. Aerosol Sci. Technol. 46, 990–1001 (2012)
M. Ihalainen, T. Lind, A. Arffman, T. Torvela, J. Jokiniemi, Break-up and bounce of TiO2 agglomerates by impaction. Aerosol Sci. Technol. 48, 31–41 (2014)
M.P. Kissane, On the nature of aerosols produced during a severe accident of a water-cooled nuclear reactor. Nucl. Eng. Des. 238, 2792–2800 (2008)
J. Hyun, A.M. Nasr, N.K. Choi, D. Park, J. Hwang, Design and performance test of a lab-made single-stage low-pressure impactor for morphology analysis of diesel exhaust particles. Aerosol Sci. Technol. 49, 895–901 (2015)
Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science, ICT, and Future Planning) (No. NRF-2017M2A8A4015280).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Han, J., Oh, J., Park, G. et al. Simulated experiments with TiO2 particles using a lab-designed single-stage impactor to evaluate impaction characteristics of particles leaked by steam generator tube rupture. JMST Adv. 1, 205–211 (2019). https://doi.org/10.1007/s42791-019-00022-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s42791-019-00022-3