Study and project of the new rack with boron for storage of fuel elements burned in the IEA-R1 research reactor
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2017
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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The IEA-R1 research reactor works 40h weekly with 4.5 Mw power. The storage rack for spent fuel elements
has less than half of its initial capacity. Under these conditions (current conditions of reactor operation 32h
weekly will have 3 spend fuel by year, then, approximately 3 utilization rate Positions/year). Thus, we will have
only about six years of capacity for storage. Whereas the desired service life of the IEA-R1 is at least another 20
years, it will be necessary to increase the storage capacity of spent fuel. Hence, it is necessary to double the wet
storage capacity (storage in the IEA-R1 reactor's pool). After reviewing the literature about materials available
for use in the construction of the new storage rack with absorber of neutrons, the BoralcanTM (manufactured by
3TMhis) wwaosr kc hporseesne,n dtsu es ttuod iitess :p r(oap) efrotrie tsh. e construction of new storages racks with double of the current capacity
using the same place of current storages racks and (b) criticality analysis using the MCNP-5 code. Two
American Nuclear Data Library were used: ENDF / B-VI and ENDF / B-VII, and the results obtained for each
data bases were compared. These analyzes confirm the possibility of doubling the storage capacity of fuel
elements burned in the same place occupied by the current storage rack attending to the IEA-R1 reactor needs
and attending the safety requirements according to the National Nuclear Energy Commission - CNEN and the
International Atomic Energy Agency (IAEA). To calculate the keff were considered new fuel elements
(maximum possible reactivity) used in full charge of the storage rack. With the results obtained in the
simulation we can conclude that doubling the amount of racks for spent fuel elements are complied with safety
limits established in the IAEA standards and CNEN of criticality (keff < 0.95).
Como referenciar
RODRIGUES, ANTONIO C.I.; MADI FILHO, TUFIC; SILVA, DAVILSON G. da. Study and project of the new rack with boron for storage of fuel elements burned in the IEA-R1 research reactor. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. Proceedings... Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28353. Acesso em: 08 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.