The event at the Fukushima Daiichi Spent Fuel Pools (SFPs) has renewed interest in quantifying the safety margins related to loss of coolant accidents in Irradiated Fuel Bays (IFBs). Thermal-hydraulic analyses of exposed spent CANDU fuel has been limited to a small number of bundles due to its complex bundle geometry and open rack design. This paper presents a process to predict the steady state temperature and velocity of air as it passes through a rack of spent fuel using analytical models and Computational Fluid Dynamics (CFDs) techniques. The scenario acts as lower bound estimate for the effectiveness of convection during a complete loss of coolant in a fuel bay by examining the heat-up of a stand-alone rack without flow resistance of the bundles. The correct incorporation of flow resistance is a necessary step before conclusions are made about the available safety margins of irradiated fuel bays.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5153-1
PROCEEDINGS PAPER
Convective Heat Transfer in CANDU Spent Fuel Racks After a Loss of Coolant Available to Purchase
Derek Logtenberg,
Derek Logtenberg
Royal Military College, Kingston, ON, Canada
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Wade Grant,
Wade Grant
Canadian Nuclear Safety Commission, Ottawa, ON, Canada
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Paul Chan,
Paul Chan
Royal Military College, Kingston, ON, Canada
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Emily Corcoran
Emily Corcoran
Royal Military College, Kingston, ON, Canada
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Derek Logtenberg
Royal Military College, Kingston, ON, Canada
Wade Grant
Canadian Nuclear Safety Commission, Ottawa, ON, Canada
Paul Chan
Royal Military College, Kingston, ON, Canada
Emily Corcoran
Royal Military College, Kingston, ON, Canada
Paper No:
ICONE26-81461, V009T16A030; 6 pages
Published Online:
October 24, 2018
Citation
Logtenberg, D, Grant, W, Chan, P, & Corcoran, E. "Convective Heat Transfer in CANDU Spent Fuel Racks After a Loss of Coolant." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 9: Student Paper Competition. London, England. July 22–26, 2018. V009T16A030. ASME. https://doi.org/10.1115/ICONE26-81461
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