Published April 1991 | Version v1
Journal article Metadata-only

Localization and handling of failed fuel subassemblies in sodium-cooled fast breeder reactors

Creators

  • 1. Internationale Atomreaktorbau GmbH (INTERATOM), Bergisch Gladbach (Germany, F.R.)

Description

Fuel pin failures cannot be completely excluded, and must therfore be taken into consideration in the design of future breeder reactors. The most important design objective is the limitation of the radiological and operational consequences of pin failures. This requires rapid and reliable detection and localization of failed subassemblies as well as their safe handling and storage. The experience with equipment for localizing (cover gas activity, delayed neutron defection = DND, sipping) and handling failed subassemblies gained from the operation of West European experimental and prototype reactors shows that these requirements can be met. (orig./HP)

Abstract (German)

Brennstabdefekte koennen nicht voellig ausgeschlossen werden und sind daher auch bei der Auslegung zukuenftiger Brutreaktoren zu beruecksichtigen. Wesentlichstes Auslegungsziel ist die Begrenzung der radiologischen und betrieblichen Folgen von Stabschaeden. Dies erfordert die schnelle und zuverlaessige Detektion und Lokalisierung von Defektelementen (Schutzgasaktivitaet, Nachweis verzoegerter Neutronen, Sipping), sowie deren sichere Handhabung und Lagerung. Die durch den Betrieb der westeuropaeischen Versuchs- und Prototypreaktoren gewonnenen Erfahrungen mit Einrichtungen zur Lokalisierung und Behandlung von Defektelementen zeigen, dass diese Anforderungen erfuellt werden koennen. (orig./HP)

Additional details

Publishing Information

Journal Title
Kerntechnik
Journal Volume
56
Journal Issue
2
Series
Kerntechnik.
Journal Page Range
114-117
ISSN
0932-3902
CODEN
KERTA

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
22052116
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
COVER GAS; DELAYED NEUTRONS; FAILED ELEMENT DETECTION; FAILED ELEMENT MONITORS; FUEL ELEMENT FAILURE; FUEL PINS; IN CORE INSTRUMENTS; LEAK TESTING; LMFBR TYPE REACTORS; MATERIALS HANDLING; NEUTRON DETECTION; RADIOACTIVITY; REACTOR MONITORING SYSTEMS
Descriptors DEC
ACCIDENTS; BARYONS; BREEDER REACTORS; CONTROLLED ATMOSPHERES; DETECTION; ELEMENTARY PARTICLES; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FERMIONS; FISSION NEUTRONS; FUEL ELEMENTS; HADRONS; INERT ATMOSPHERE; LIQUID METAL COOLED REACTORS; MEASURING INSTRUMENTS; MONITORS; NEUTRONS; NUCLEONS; RADIATION DETECTION; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; TESTING