PWR Transition to a Higher Power Core Using Annular Fuel by Beccherle, J., Hejzlar, Pavel, Kazimi, Mujid S.

“…The internally and externally cooled annular fuel is a new type of fuel for PWRs that enables an increase in core power density by 50% within the same or better safety margins as traditional solid fuel. Each annular fuel assembly of the same side dimensions as the 17x17 solid fuel assembly has 160 annular fuel rods arranged in a 13x13 array. …”
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NEUTRONIC AND THERMAL HYDRAULIC DESIGNS OF ANNULAR FUEL FOR HIGH POWER DENSITY BWRS by Morra, P., Xu, Z., Hejzlar, Pavel, Saha, P., Kazimi, Mujid S.

“…Results are compared to the conventional BWR solid fuel bundle for the same power density and total energy. …”
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Thermal-Hydraulic Analysis of Innovative Fuel Configurations for the Sodium Fast Reactor by Memmott, Matthew J., Hejzlar, Pavel, Buongiorno, Jacopo

“…The transient analysis confirmed the good thermal-hydraulic performance of the annular and bottle-shaped fuel designs with respect to their respective solid fuel pin cases.…”
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