Criticality safety analysis of WWER spent fuel casks with radial burnup profile implementation
- 1. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia (Bulgaria)
Description
The aim of this paper is to evaluate the impact of radial burnup profile on the criticality of WWER spent fuel casks. The radial zone wise dependent spent fuel inventories of two WWER assemblies, discharged from Unit 1 and Unit 5 of Kozloduy NPP respectively, have been calculated by the NESSEL-NUKO code system. For criticality calculations the modular code system SCALE4.4 has been applied. Calculations have been performed for both: cask with 30 WWER-440 fuel assemblies with initial enrichment 3.6% of 235U and burnup up to 40MWd/kgU and cask with 12 WWER-1000 fuel assemblies with initial enrichment 3.3% of 235 U and burnup up to 40MWd/kgU. The results obtained show that the influence of radial burnup credit on Keff of the considered transport casks is very small, which is in good agreement with the published results for WWER-440 and for PWR fuel. (author)
Additional details
Identifiers
Publishing Information
- ISBN
- 92-0-103307-9
- Imprint Title
- Advances in applications of burnup credit to enhance spent fuel transportation, storage, reprocessing and disposition. Proceedings of a technical meeting
- Imprint Pagination
- 462 p.
- Journal Page Range
- p. 261-269
- ISSN
- 1011-4289
- Report number
- IAEA-TECDOC--1547
Conference
- Title
- Technical meeting on advances in applications of burnup credit to enhance spent fuel transportation, storage, reprocessing and disposition
- Dates
- 29 Aug - 2 Sep 2005
- Place
- London (United Kingdom)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38096613
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BURNUP; CRITICALITY; FUEL ASSEMBLIES; INVENTORIES; KOZLODUY-1 REACTOR; KOZLODUY-2 REACTOR; KOZLODUY-3 REACTOR; KOZLODUY-4 REACTOR; KOZLODUY-5 REACTOR; NUCLEAR POWER PLANTS; SAFETY ANALYSIS; SPENT FUEL CASKS; SPENT FUELS; TRANSPORT; URANIUM 235
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CASKS; CONTAINERS; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; FUELS; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; MINUTES LIVING RADIOISOTOPES; NUCLEAR FACILITIES; NUCLEAR FUELS; NUCLEI; POWER PLANTS; POWER REACTORS; PWR TYPE REACTORS; RADIOISOTOPES; REACTOR MATERIALS; REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; THERMAL POWER PLANTS; THERMAL REACTORS; URANIUM ISOTOPES; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 13 refs, 8 figs, 2 tabs