Comparisons of COBRA-SFS calculations with data from simulated sections of unconsolidated and consolidated BWR spent fuel. Final report
The COBRA-SFS code was used to calculate temperatures in test sections modeling consolidated and unconsolidated spent fuel rods. The test sections were two-feet long, oriented horizontally, and designed so that the predominate direction of heat flow was in the radial direction. The data consisted of temperature measurements obtained on the electrically heated rods in the test assemblies, and on the boundary walls of the test sections. The COBRA-SFS calculations were in excellent agreement with the measured data from the consolidated test sections. The temperature calculated for the unconsolidated tests were somewhat higher than the measured values. Sensitivity studies on the models for the various modes of heat transfer available in the test sections show that for the consolidated geometry, the COBRA-SFS results are in agreement with the data, and well within experimental error. For the unconsolidated geometry, the COBRA-SFS results are conservative due to an idealized representation of the actual geometry.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5484273
- Report Number(s):
- EPRI-NP-4593; ON: DE86015067
- Country of Publication:
- United States
- Language:
- English
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