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U.S. Department of Energy
Office of Scientific and Technical Information

Nuclear reactor constructions

Patent ·
OSTI ID:5640412
A liquid metal cooled fast breeder nuclear reactor comprises a nuclear fuel assembly submerged in a pool of coolant contained in a primary vessel is housed in a concrete vault. A core cover structure suspended from the roof of the vault and immersed in the pool of coolant comprises a plurality of vertical tubes braced apart by perforated grid plates. An intermediate grid plate has a permeable shroud which constrains coolant passing through the perforations in the grid plate to flow transversely over the upper surface to reduce the transient temperature differential.
Assignee:
Nuclear Power Co Ltd (United Kingdom)
Patent Number(s):
US 4309252
OSTI ID:
5640412
Country of Publication:
United States
Language:
English