NUCLEAR REACTOR COOLED BY LIQUID METAL INCORPORATING A PASSIVE DECAY HEAT REMOVAL SYSTEM WITH A PHASE CHANGE MATERIAL THERMAL RESERVOIR AND A REMOVABLE THERMALLY-INSULATING LAYER AROUND THE PHASE CHANGE MATERIAL RESERVOIR
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United States of America Patent
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Issued Date -
Jun 22, 2023
app pub date -
Dec 15, 2022
filing date -
Dec 16, 2021
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Abstract
A nuclear reactor cooled by liquid metal incorporating a passive system for evacuation of the decay heat with a phase change material thermal reservoir and a removable thermally-insulating layer around the phase change material reservoir. A nuclear reactor incorporates an integral system that guarantees: totally passive evacuation of decay heat from the initial moment of the accident; evacuation of power via the primary containment vessel; the presence of a final cold source with a reservoir incorporating an integral exchanger divided into a plurality of parallel tubes between which a phase change material is inserted, the reservoir being surrounded by a thermally-insulating layer that can be detached in a passive manner in the event of reaching a predetermined threshold temperature.
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