Title:
【発明の名称】二レベル炉心を有する原子炉
Document Type and Number:
Japanese Patent JPH05508926
Kind Code:
A
Abstract:
A reactor core includes upper and lower matrices of fuel bundles. Fuel rods in the upper matrix have their plenums oriented upward, while fuel rods in the lower matrix have their plenums oriented downward. Refueling involves removal of a first bundle in the upper matrix, removal and retirement of the bundle in the lower matrix directly below the original position of the first bundle, inversion and installation of the first bundle in the lower matrix, and installlation of a new bundle in the upper matrix. The new bundle is installed plenum-side up. The bi-level core provides greater flexibility in repositioning fuel bundles for longer burnups and lower high-level waste. In particular, problems with axial spectral variations in neutron flux can be compensated using the disclosed core arrangement and refueling procedure.
Inventors:
Fenern, Larry Edgar
Dillman, Charles Warner
Harold Edward, Townsend
Chalberg, Roy Clifford
Wilkins, Daniel Raymond
Nesbitt, Lloyd Bryce
Kong Don, Stephen Paul
Fauset, Russell Morgan
Grants, Douglas Marvin
Barry Howard, Simon
O'Neill, Timothy Joseph
Dillman, Charles Warner
Harold Edward, Townsend
Chalberg, Roy Clifford
Wilkins, Daniel Raymond
Nesbitt, Lloyd Bryce
Kong Don, Stephen Paul
Fauset, Russell Morgan
Grants, Douglas Marvin
Barry Howard, Simon
O'Neill, Timothy Joseph
Application Number:
JP51370291A
Publication Date:
December 09, 1993
Filing Date:
June 28, 1991
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
G21C3/16; F04D7/08; F04D13/04; F04D15/00; F04D29/04; F04D29/047; F04D29/42; F04D29/44; G21C1/08; G21C3/328; G21C5/00; G21C5/12; G21C5/22; G21C7/16; G21C7/22; G21C9/033; G21C15/24; G21C15/243; G21C17/00; G21D3/04; G21C1/28; G21C5/02; (IPC1-7): G21C5/00; G21C3/16; G21C3/328; G21C5/12; G21C5/22; G21C7/16; G21C7/22; G21C9/033; G21C17/00; G21D3/04
Attorney, Agent or Firm:
Tokunji Ikunuma