Comissioning of the new heat exchanger for the research nuclear reractor IEA-R1
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2008
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BRAZILIAN CONGRESS OF THERMAL ENGINEERING AND SCIENCES, 12th
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Resumo
The Research Reactor IEA-R1 placed at IPEN/CNEN-SP is of the swimming pool type, light water moderated
and with graphite reflectors, and was build and designed by Babcock&Wilcox Co. Start up operation was in September
the 16th, 1957, being the first criticality for South Hemisphere. Although designed to operate at 5 MW, the IEA-R1 was
operated until 2001 with 2 MW and was suitable for use in basic and applied research as well as the production of
medical radioisotopes, industry and natural sciences applications. Due to a recent demand increase on radioisotopes
in Brazil for medical diagnoses and therapies applications, IPEN /CNEN updated the IEA-R1 power to 5 MW and to
work at continuous operation regime. Studies on the Ageing Management for the Research Reactor IEA-R1 were
conducted according to IAEA procedures. As result of these studies critical components within the Ageing
Management Program were identified. Also were made recommendations on the implementation of test scheduling
and standardization procedures to organize data and documents. One of the main results was the need of monitoring
the two heat exchangers, the two primary circuit pumps and the data acquisition system. During monitoring
procedures, issues were observed on the IEA-R1 operation at 5 MW mainly due to the ageing of the Babcox & Wilcox
TCA heat exchanger, and excessive vibrations at high flow rates on CBC’s TCB heat exchanger. So, from 2005 on, it
was decided to work with 3,5 MW and provide a new IESA heat exchanger with 5 MW capacity, to substitute the TCA
heat exchanger. This work presents results on the commissioning of the new heat exchanger and compares against the
values calculated in the IESA project. The results show that the IEA-R1 Reactor can be operated more safety and
continuously at 5 MW with the new IESA heat exchanger .
Como referenciar
CASTRO, ALFREDO J.A. de; CASSIANO, DOUGLAS A.; UMBEHAUN, PEDRO E.; CARVALHO, MARCOS R. de; FRAJNDLICH, ROBERTO. Comissioning of the new heat exchanger for the research nuclear reractor IEA-R1. In: BRAZILIAN CONGRESS OF THERMAL ENGINEERING AND SCIENCES, 12th, November 10-14, 2008, Belo Horizonte, MG. Anais... Disponível em: http://repositorio.ipen.br/handle/123456789/16016. Acesso em: 30 Dec 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.