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Resumo IPEN-doc 24578 Experiments of loss of coolant in the IEA-R1 reactor2017 - MAPRELIAN, E.; TORRES, W.M.; BELCHIOR JUNIOR, A.; UMBEHAUN, P.E.; SANTOS, S.C.; FRANÇA, R.L.; PRADO, A.C.; MACEDO, L.A.; SILVA, A.T. E; BERRETTA, J.R.; SABUNDJIAN, G.The Loss of Coolant Accident (LOCA) has been considered Design Basis Accident (DBA) for several kind of reactors. The test section for experimental (STAR) for simulation of LOCA, using the Instrumented Fuel Assembly (IFA) EC-208 was designed, assembled, commissioned, and used for the experiments at the IEA-R1 Reactor. The experiments were performed for five different levels of fuel uncovering and two heat decay conditions. The five levels consisted of one total and four partial uncovering of the IFA. The results obtained for each experiment were the section level and 13 IFA temperatures. A data acquisition system was used to record the process parameters. The STAR section has proved to be a very safe and efficient tool for fuel uncovering experiments to obtain thermal-hydraulic data for research and development, and for the data to be compared with safety analysis code calculations.Relatório IPEN-doc 22795 Inspeção Visual de Elementos Combustíveis durante a Parada Técnica Programada 1P22 da CNAAA Unidade 1 (Junho/2016)2016 - PRADO, ADELK de C.; SILVA, ANTONIO T. e; ZEITUNI, CARLOS A.; JUNQUEIRA, FERNANDO de C.; SILVA, JOSE E.R. da; TERREMOTO, LUIS A.A.; CASTANHEIRA, MYRTHES; FRANÇA, RENATO L.Este documento descreve as atividades de inspeção visual dos elementos combustíveis (EC) irradiados descarregados do núcleo do reator (Ciclo 21 de operação) da Usina Angra 1 da CNAAA. As atividades de inspeção visual foram realizadas pelo IPEN/CNEN-SP no período de 25 a 27 de junho de 2016, durante a parada técnica programada 1P22, em atendimento ao contrato de prestação de serviços [1], firmado entre a ELETRONUCLEAR e o IPEN/CNEN-SP.Artigo IPEN-doc 21115 Commissioning of the star test section for experimental simulation of loss coolant accident using the EC-208 instrumented fuel assembly of the IEA-R1 reactor2015 - MAPRELIAN, EDUARDO; TORRES, WALMIR M.; PRADO, ADELK C.; UMBEHAUN, PEDRO E.; FRANÇA, RENATO L.; SANTOS, SAMUEL C.; MACEDO, LUIZ A.; SABUNDJIAN, GAIANE