IRIS reactor core with thorium fuel
Creators
- 1. Department of Engineering Physics, Tsinghua University, Beijing (China)
Description
This work is aimed at running the first IRIS reactor core with mixed thorium dioxide fuel (ThO2-UO2 and ThO2-PuO2). Calculations are performed by using Dragon 4.0.4 and Citation codes. The results show the multiplication factor(Keff) for central and peripheral assemblies as a function of burnup. To ensure the proliferation resistance,the value of 235U enrichment is ≤ 20%. The Keff is calculated using Dragon 4.0.4 for a single fuel rod and the model developed to fuel assembly, while the whole core was calculated using Citation code. For a fuel burnup, the use of increased enrichment fuel in the IRIS core leads to high reserve of reactivity, which is compensated with an integral fuel burnable absorber. The self-shielding of boron is in an IRIS reactor fuel. The effect of increased enrichment to the burn-up rates, and burnable poison distribution on the reactor performance, are evaluated. The equipment used in traditional light water reactors is evaluated for designing a small unit IRIS reactor. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Science and Techniques
- Journal Volume
- 22
- Journal Issue
- 5
- Journal Page Range
- p. 311-315
- ISSN
- 1001-8042
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 45021077
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- BORON; BURNABLE POISONS; BURNUP; ENRICHMENT; FUEL ASSEMBLIES; FUEL RODS; MULTIPLICATION FACTORS; NUCLEAR FUELS; PLUTONIUM OXIDES; PROLIFERATION; REACTIVITY; REACTOR CORES; REACTOR FUELING; SELF-SHIELDING; THORIUM; THORIUM OXIDES; URANIUM 235; URANIUM DIOXIDE; WATER COOLED REACTORS; WATER MODERATED REACTORS
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ACTINIDES; ALPHA DECAY RADIOISOTOPES; CHALCOGENIDES; DIMENSIONLESS NUMBERS; ELEMENTS; ENERGY SOURCES; EVEN-ODD NUCLEI; FUEL ELEMENTS; FUELS; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; METALS; MINUTES LIVING RADIOISOTOPES; NEUTRON ABSORBERS; NUCLEAR POISONS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; PLUTONIUM COMPOUNDS; RADIOISOTOPES; REACTOR COMPONENTS; REACTOR MATERIALS; REACTORS; SEMIMETALS; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM COMPOUNDS; TRANSURANIUM COMPOUNDS; URANIUM COMPOUNDS; URANIUM ISOTOPES; URANIUM OXIDES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 6 figs., 2 tabs., 14 refs.