Published February 1987 | Version v1
Journal article Metadata-only

Preliminary evaluation of improved LWR fuels using onion effect

Creators

  • 1. Central Research Inst. of Electric Power Industry, Komae, Tokyo (Japan). Komae Research Lab.

Description

Some types of modified fuel rods which use onion effect of plutonium and product more plutonium in fuel rods than present types have been designed. Onion effect is calculated with ROLAIDS, and modified fuel burn-up effect is calculated with ANISN-BURN preliminaly. Central-scatter fuel rods which contain neutron scatter such as MgO in center of fuel pellets and cylindrical fuel rods increase epi-thermal absorption cross section of U238 by 6 % and 18 % respectively. These modifed fuel rods increase fuel rod reactivity after burn-up of 40 GWD/T.At 60 GWD/T central-scatter fuel rods and cylindrical fuel rods increase fuel rod reactivity by 0.5 % Δk/k and 1.5 % Δk/k respectively. (author)

Additional details

Publishing Information

Journal Title
Denryoku Chuo Kenkyusho Hokoku
Journal Issue
no.T86043
Series
Denryoku Chuo Kenkyusho Hokoku.
CODEN
DCKHD

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
18090731
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
BURNUP; BWR TYPE REACTORS; CROSS SECTIONS; FUEL ELEMENTS; GIANT RESONANCE; ISOTOPE RATIO; MANAGEMENT; NEUTRONS; PLUTONIUM 239; PWR TYPE REACTORS; REACTIVITY; REACTOR OPERATION; RESONANCE ABSORPTION; SURFACES; URANIUM 238
Descriptors DEC
ABSORPTION; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY NUCLEI; ISOTOPES; NUCLEI; NUCLEONS; OPERATION; PLUTONIUM ISOTOPES; POWER REACTORS; RADIOISOTOPES; REACTOR COMPONENTS; REACTORS; RESONANCE; SPONTANEOUS FISSION RADIOISOTO; THERMAL REACTORS; URANIUM ISOTOPES; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES