BWR type reactor
Creators
- 1. Nippon Atomic Industry Group Co. Ltd., Tokyo
Description
Purpose: To flatten the reactor core ower distribution and the burn-up degree distribution during operation, as well as to attain reactor shutdown margin capable of satisfying design criteria. Constitution: A low reactivity control rod has a high reactivity portion in the upper end region and a low reactivity portion in a region therebelow. Further, the low reactivity portion has a such a structure that the neutron absorption performance is increased toward the top end. A high reactivity control rod has a high reactivity portion over the entire length as in the conventional control rod, or a control rod in which the reactivity is decreased at the top end portion is used. This enables to reduce the distortion of the power distribution during reactor operation to flatten the power distribution and the burn-up degree distribution. (Takahashi, M.)
Availability note (English)
Available from JAPIO. Also available from INPADOC.Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- IPC:
- Int. Cl. G21C7/08; G21C7/10.
- IPC
- Int. Cl. G21C7/08; G21C7/10.
- Patent number
- JP patent document 63-188793/A/
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 20034795
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ABSORPTION; BWR TYPE REACTORS; CONTROL ELEMENTS; FUEL ASSEMBLIES; HOMOGENIZATION METHODS; NEUTRONS; POWER DISTRIBUTION; REACTOR CORES; REACTOR LATTICES; REACTOR OPERATION
- Descriptors DEC
- BARYONS; DISTRIBUTION; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; FERMIONS; HADRONS; NUCLEONS; OPERATION; POWER REACTORS; REACTOR COMPONENTS; REACTORS; SPATIAL DISTRIBUTION; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Secondary number(s)
- JP patent application 62-20390.