Neutronic, thermal-hydraulic and accident analysis calculations for an irradiation device to be used in the qualification process of dispersion fuels in the IEA-R1 research reactor
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2009
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st
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Neutronic, thermal-hydraulics and accident analysis calculations were developed to estimate the safety of an
irradiation device placed in the IEA-R1 reactor core. The irradiation device will be used to receive miniplates of
U3O8-Al e U3Si2-Al dispersion fuels, LEU type (19.9% of 235U), with uranium densities of, respectively, 3.0
gU/cm3
and 4.8gU/cm3
. The fuel miniplates will be irradiated to nominal 235U burnup levels of 50% and 80%, in
order to qualify the above high-density dispersion fuels to be used in the Brazilian Multipurpose Reactor, now in
the conception phase. For the neutronic calculation, the computer code CITATION was utilized. The computer
code FLOW was used to calculate the coolant flow rate in the irradiation device, allowing the determination of
the fuel miniplate temperatures with the computer model MTRCR-IEA-R1. A postulated Loss of Coolant
Accident (LOCA) was analyzed with the computer codes LOSS and TEMPLOCA, allowing the calculation of
the fuel miniplate temperatures after the reactor pool draining. The calculations showed that the irradiation of
the fuel miniplates will happen without any adverse consequence in the IEA-R1 reactor.
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DOMINGOS, DOUGLAS B.; TEIXEIRA e SILVA, ANTONIO; UMBEHAUN, PEDRO E.; SILVA, JOSE E.R. da; CONTI, THADEU das N.; YAMAGUCHI, MITSUO. Neutronic, thermal-hydraulic and accident analysis calculations for an irradiation device to be used in the qualification process of dispersion fuels in the IEA-R1 research reactor. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st, September 27 - October 2, 2009, Rio de Janeiro, RJ. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/16611. Acesso em: 19 Feb 2025.
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.