| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8068718 | Annals of Nuclear Energy | 2015 | 13 Pages |
Abstract
The final part of the work presents a basic safety analysis, which shows that the thorium PBR fulfills the same passive safety requirements as the equilibrium core during every stage of the running-in phase. The maximum fuel temperature during a Depressurized Loss of Forced Cooling (DLOFC) with scram remains below 1400 °C throughout the running-in phase, quite a bit below the TRISO failure temperature of 1600 °C. The uniform reactivity coefficients of cores with U-235/U-238 driver fuel are much stronger negative compared to U-233/Th driver fuel, which implies that the stronger reactivity insertion by water ingress and the reactivity addition by xenon decay during a DLOFC without scram can be compensated without fuel temperatures exceeding 1600 °C.
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Authors
F.J. Wols, J.L. Kloosterman, D. Lathouwers, T.H.J.J. van der Hagen,