Modelling Deep Borehole Disposal of Higher Burn-up Spent Nuclear Fuels
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ABSTRACTHigher burn-up (> 50 GWd/t) spent nuclear fuels (SNF) present problems for long-term management and disposal in mined repositories, principally because of their higher heat output. Here we present results from heat flow modeling of an alternative scheme for disposing of SNF - deep borehole disposal (DBD). We focus on how temperatures on the outer surface of the containers evolve, affect the melting and re-solidification of the high density support matrix (HDSM) and their consequences for the feasibility of this disposal concept. We conclude that not only is DBD a viable option for higher burn-up SNF, but it could be a practical disposal route for a range of combinations of SNF ages and number of fuel pins per container.
2012 ◽
Vol 76
(8)
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pp. 3003-3017
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1993 ◽
Vol 4
(2)
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pp. 329-342
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Keyword(s):
2020 ◽
Vol 9
(2)
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pp. 40-48