Published 1988 | Version v1
Miscellaneous Metadata-only

Determination of Angra 1 excore power range detectors response in function of the axial asymmetry of neutron flux

Creators

  • 1. FURNAS, Rio de Janeiro (Brazil)

Description

The relationship between Angra 1 excore power range detectors response and the axial flux offset measured by incore movable detectors mappings was determined during plant operation at 75 % power (1400 MWth). This relationship was utilized to generate the f(Δq) function, a input to the Reactor Protection System to protect against adverse axial power shapes and to mantain the fuel rods integrity. (autor)

Abstract (Portuguese)

A relacao entre a resposta dos detetores externos da faixa de potencia de Angra 1 e a Assimetria Axial de Fluxo medida atraves de mapeamentos de fluxo pelos detetores moveis internos ao nucleo do reator foi determinada no patamar de 75% de potencia termica (1400 MWt). A partir desta relacao foram gerados os parametros da funcao f(Δf), utilizada pelo Sistema de Protecao do Reator para protecao contra distribuicoes axiais adversas de potencia, visando preservar a integridade das varetas de combustivel. (autor)

Additional details

Additional titles

Original title (Portuguese)
Determinacao da resposta dos detetores externos da faixa de potencia de Angra 1 em funcao da assimetria axial de fluxo neutronico

Publishing Information

Imprint Title
Proceedings of the 2. General Congress of Nuclear Energy - v. 1
Imprint Pagination
487 p.
Journal Page Range
p. 265-272.
Report number
INIS-BR--1147(v.1)

Conference

Title
2. General Congress of Nuclear Energy.
Dates
24-29 Apr 1988.
Place
Rio de Janeiro, RJ (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
19068748
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANGRA-1 REACTOR; NEUTRON FLUX; POWER DENSITY; POWER DISTRIBUTION; REACTOR PROTECTION SYSTEMS; RESPONSE FUNCTIONS
Descriptors DEC
DISTRIBUTION; ENRICHED URANIUM REACTORS; FUNCTIONS; POWER REACTORS; PWR TYPE REACTORS; RADIATION FLUX; REACTORS; SPATIAL DISTRIBUTION; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
Imprint:Anais do 2. Congresso Geral de Energia Nuclear - v. 1.