Published 1983 | Version v1
Miscellaneous Open

Dynamic behavior of large oxide-fueled fast reactors during over-power transients due to boiling of sodium

Creators

Description

The dynamic behavior of large oxide-fueled fast reactors during over-power transients or under-flow situations which result in boiling of sodium used as coolant. The fuel heat transfer was analysed to determine the fuel temperature profile and the Doppler feedback reactivity. The sodium pressure, temperature, mass flow rate and sodium voiding reactivity were obtained by solving the basic coolant hydrodynamics equations. (Author)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

Investiga-se o comportamento energetico de reatores rapidos durante transientes que levam a ebulicao do sodio usado como refrigerante. Estes transientes podem ser ocasionados por uma introducao acidental de reatividade ou por uma queda no fluxo de sodio do primario. Estudou-se tambem o comportamento hidrodinamico do refrigerante, obtendo-se a distribuicao de temperatura, a pressao, o fluxo de massa, a fracao de vazio e a reatividade devido a variacao de densidade do sodio. A solucao numerica dos tres modelos acoplados e efetuada pelo programa SodioT4. (Autor)

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Additional details

Additional titles

Original title (Portuguese)
Evolucao energetica de reatores rapidos durante o acidente devido a ebulicao do sodio

Publishing Information

Imprint Pagination
138 p.
Report number
INIS-BR--170

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
15068130
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
COMPUTER CALCULATIONS; FAST REACTORS; FUEL ELEMENTS; HEAT TRANSFER; REACTIVITY; S CODES; SAFETY ANALYSIS; SODIUM; TEMPERATURE DISTRIBUTION; TRANSIENTS
Descriptors DEC
ALKALI METALS; COMPUTER CODES; ELEMENTS; ENERGY TRANSFER; EPITHERMAL REACTORS; METALS; REACTOR COMPONENTS; REACTORS