Published July 21, 1984 | Version v1
Patent Metadata-only

Fuel assembly

Creators

Description

Purpose: To increase the neutron moderating effect in the control rod region of a BWR type reactor, thereby making the control rod worth and the void coefficient substantially equal to those in the conventional case even upon use of mixed oxide fuels of uranium and plutonium. Constitution: The fuel assembly comprises a plurality of fuel rods arranged in a lattice-like pattern and mounted to the core of a reactor using light water as coolants. A cross-like control rod is disposed between each of the fuel assemblies. Then, the minimum distance between the surface of the control rod and the surface of the fuel rod is specified in a range between 13 mm - 25 mm. (Seki, T.)

Availability note (English)

Available from JAPATIC. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21C3/30; G21C7/08.
IPC
Int. Cl. G21C3/30; G21C7/08.
Patent number
JP patent document 59-126987/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
16064737
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BWR TYPE REACTORS; CONFIGURATION; CONTROL ELEMENTS; CONTROL ROD WORTHS; FUEL ASSEMBLIES; FUEL RODS; MIXED OXIDE FUELS; PLUTONIUM OXIDES; URANIUM OXIDES; VOID COEFFICIENT
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; ENERGY SOURCES; ENRICHED URANIUM REACTORS; FUEL ELEMENTS; FUELS; MATERIALS; NUCLEAR FUELS; OXIDES; OXYGEN COMPOUNDS; PLUTONIUM COMPOUNDS; POWER REACTORS; REACTIVITY COEFFICIENTS; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; SOLID FUELS; THERMAL REACTORS; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Secondary number(s)
JP patent application 58-1086.