Boiling water reactor with expanded core diameter

Patent · Tue May 25 00:00:00 EDT 1993

OSTI ID:6482085

Fennern, L E

A power reactor is described comprising: an upstanding reactor vessel having an internal surface of generally cylindrical configuration and of predetermined inner diameter; steam treating means within a generally upwardly disposed region of said vessel for providing steam-water separation; a plurality of coolant recirculation pumps having impellers mounted within a lower portion of said reactor vessel within an annulus shaped region adjacent said vessel internal surface; a reactor core exhibiting a predetermined core circumferential diameter located within said vessel, including a predetermined number of internally and peripherally disposed fuel assemblies incorporating fuel rods of predetermined active fuel length and power density; a control rod guide assemblage including a plurality of control rod guides positioned within said vessel adjacent said reactor core and inwardly of said annulus shaped region; a plurality of control rods, each movable from within a said control rod guide to a select location intermediate adjacent said fuel assemblies; a shroud positioned within said reactor vessel, having a cylindrical core region portion located to extend at least partially over said annulus shaped region, surrounding said reactor core and spaced with said core from said vessel internal surface a substantially minimum distance avoiding neutron fluence induced vessel embrittlement and providing a core region coolant return; and drive means coupled with said control rods for effecting said movement thereof.

• Assignee: General Electric Company, San Jose, CA (United States)
• Patent Number(s): US 5213756; A
• Application Number: PPN: US 7-694526; TRN: 93-012119
• OSTI ID: 6482085
• Resource Relation: Patent File Date: 1 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
DESIGN
ANNULAR SPACE
CONTROL ELEMENTS
CONTROL ROD DRIVES
CYLINDRICAL CONFIGURATION
EMBRITTLEMENT
FUEL ASSEMBLIES
NUCLEAR POWER PLANTS
PUMPS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR VESSELS
SHAFT GUIDES
SIZE
CONFIGURATION
CONTAINERS
COOLING SYSTEMS
ENRICHED URANIUM REACTORS
NUCLEAR FACILITIES
POWER PLANTS
POWER REACTORS
REACTOR COMPONENTS
REACTORS
SPACE
THERMAL POWER PLANTS
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
210100* - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled