Two and three dimensional thermal models of a Nuclear Assurance Corporation Legal Weight Truck (NAC-LWT) cask were constructed using the PATRAN commercial finite element package. The two-dimensional model included the effect of radial stiffeners in the package’s external neutron shield but three-dimensional model did not. A normal conditions of transport (NCT) simulation using both models predicted the peak cladding temperature was roughly 210°C. The NCT package temperatures were used as initial conditions for transient fire/post-fire simulations. Different assumptions were used to determine when the neutron shield liquid drained from the tank and was replaced by air. When the liquid was assumed to remain within the tank during and after the fire, the peak cladding temperature was predicted to exhibit a temporal maximum of roughly 300°C, approximately 6 hours after the end of the fire. If the liquid drained from the tank during the fire, the cladding temperature did not exhibit a temporal peak. Rather, it eventually reached a maximum temperature of roughly 280°C, which is the steady state NCT peak temperature when air is in the neutron shield tank. This undergraduate project will be used to lay down a foundation for further research on NAC-LWT casks. Two and three dimension package of the cask will be constructed using ANSYS, and simulations will be run for NCT and fire/post-fire conditions. The models will also be linked to Container Analysis Fire Environment (CAFE) to predict response of the package in fire.
Skip Nav Destination
ASME 2012 Pressure Vessels and Piping Conference
July 15–19, 2012
Toronto, Ontario, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5506-5
PROCEEDINGS PAPER
Thermal Analysis of a NAC-LWT Cask Under Normal and Fire Accident Conditions
Ketan Mittal,
Ketan Mittal
University of Nevada-Reno, Reno, NV
Search for other works by this author on:
Miles Greiner
Miles Greiner
University of Nevada-Reno, Reno, NV
Search for other works by this author on:
Ketan Mittal
University of Nevada-Reno, Reno, NV
Miles Greiner
University of Nevada-Reno, Reno, NV
Paper No:
PVP2012-78882, pp. 305-312; 8 pages
Published Online:
August 8, 2013
Citation
Mittal, K, & Greiner, M. "Thermal Analysis of a NAC-LWT Cask Under Normal and Fire Accident Conditions." Proceedings of the ASME 2012 Pressure Vessels and Piping Conference. Volume 7: Operations, Applications and Components. Toronto, Ontario, Canada. July 15–19, 2012. pp. 305-312. ASME. https://doi.org/10.1115/PVP2012-78882
Download citation file:
3
Views
0
Citations
Related Proceedings Papers
Fire Durations of Concern for a Modern Legal Weight Truck Cask
PVP2006-ICPVT-11
Related Articles
Computational Fluid Dynamics Thermal Analysis of ITER Pressure Suppression Tanks
ASME J of Nuclear Rad Sci (January,2021)
Unsteady Analysis of a Mechanical Seal Using Duhamel’s Method
J. Tribol (July,2005)
An Investigation of the Transient Thermal Analysis of Spur Gears
J. Mech., Trans., and Automation (December,1985)
Related Chapters
Dismantling
Decommissioning Handbook
Safety
Engineering the Everyday and the Extraordinary: Milestones in Innovation
A PSA Update to Reflect Procedural Changes (PSAM-0217)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)