Cooled water rod (loca conditions)

Patent · Tue Jul 05 04:00:00 EDT 1988

OSTI ID:6814278

Shialkar, B; Dix, G E; Andersen, J G.M.

A process is described for providing a radiation heat sink for fuel bundles having a large water moderator tube in the event of a loss of coolant accident the fuel bundles having an upper tie plate, a lower tie plate, a channel surrounding and connecting the tie plate, a plurality of fuel rods supported between the tie plates and within the channels in side by side upstanding relation; a large water moderator tube having at least twice the diameter of the fuel rods. The process consists of: spraying core cooling spray in an evenly divided flow over the upper tie plate; collecting core cooling spray at an uper end of the large water moderator tube; and distributing the core cooling spray circumferentially along the inner surfaces of the large water moderator tube in a downward flow separating the flow of the core cooling spray from the flow of steam resulting from the flashing of water to steam within the moderator tube.

• Assignee: General Electric Co., San Jose, CA
• Patent Number(s): US 4755348
• OSTI ID: 6814278
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220300 -- Nuclear Reactor Technology-- Fuel Elements
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
COOLING
COOLING SYSTEMS
ENERGY SYSTEMS
FUEL ASSEMBLIES
FUEL ELEMENT CLUSTERS
FUEL ELEMENTS
FUEL RODS
HEAT SINKS
LOSS OF COOLANT
MODERATORS
PLATES
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR SAFETY
SAFETY
SINKS
SPRAYS
TUBES