Identification of flow regimes and heat transfer modes in ANGRA2 core during the simulation of the small break loss of coolant accident of 250 cm2 in the cold leg of primary loop using RELAP5 code
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2017
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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The aim of this paper is to identify the flow regimes, the heat transfer modes, and the correlations used by
RELAP5/MOD3.2.gama code in ANGRA 2 during the Small-Break Loss-of-Coolant Accident (SBLOCA) with
a 250cm2 of rupture area in the cold leg of primary loop. The Chapter 15 of the Final Safety Analysis Report of
ANGRA 2 (FSAR-A2) reports this specific kind of accident. The results from this work demonstrated the
several flow regimes and heat transfer modes that can be present in the core of ANGRA 2 during the postulated
accident. The results obtained for Angra2 nuclear reactor core during the postulated accident were satisfactory
when compared with the FSAR-A2. Additionally, the results showed the correct actuation of the ECCS
guaranteeing the integrity of the reactor core.
Como referenciar
BORGES, EDUARDO M.; SABUNDJIAN, GAIANE. Identification of flow regimes and heat transfer modes in ANGRA2 core during the simulation of the small break loss of coolant accident of 250 cm2 in the cold leg of primary loop using RELAP5 code. 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/123456789/28201. Acesso em: 16 Mar 2025.
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