Published March 2003 | Version v1
Report Metadata-only

Recommendations and supporting information on the choice of zirconium oxidation models in severe accident codes

Creators

Description

Fuel rod cladding oxidation is one of the key aspects of the accidental behaviour of LWR fuel elements, and a comprehensive base of experimental information on its kinetics is available. However, the conventional treatment of zirconium oxidation kinetics in some severe accident (SA) codes is unsatisfactory compared to the more recently implemented highly sophisticated core degradation models. Based on a review of experimental results recommendations for application are given in the report, in order to promote the acceptance of a common data base for all SA codes. Convergence towards this goal helps to avoid arbitrary user options and allows the focussing of code-to-code benchmarking comparisons to fields of actual and future concern. (orig.)

Availability note (English)

Available from TIB Hannover: ZA 5141(6827)

Abstract (German)

Die Oxidation der Brennstabhuellrohre ist einer der wichtigsten Aspekte des Verhaltens von LWR-Brennelementen bei Stoerfaellen, und zu ihrer Kinetik ist eine umfangreiche Basis experimenteller Information verfuegbar. Jedoch ist deren konventionelle Beruecksichtigung in einigen Codes zur Analyse hypothetischer Stoerfaelle unbefriedigend im Vergleich zu den spaeter eingebrachten anspruchsvollen Modellen fuer die Behandlung des Brennstabversagens. Auf der Basis einer Uebersicht der experimentellen Ergebnisse wird in dem Bericht mit Empfehlungen zu ihrer Anwendung dafuer geworben, fuer alle entsprechenden Codes eine gemeinsame Datenbasis anzuerkennen. Die Verfolgung dieses Ziels traegt dazu bei, willkuerliche Optionen der Anwender zu vermeiden, und ermoeglicht eine Konzentration des Vergleichs verschiedener Codes auf Gebiete aktueller und kuenftiger Interessen. (orig.)

Additional details

Publishing Information

Imprint Pagination
30 p.
ISSN
0947-8620
Report number
FZKA--6827

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
34068008
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ACCIDENTS; CALCULATION METHODS; FUEL CANS; OXIDATION; RECOMMENDATIONS; WATER COOLED REACTORS; ZIRCALOY 4; ZIRCONIUM OXIDES
Descriptors DEC
ALLOY-ZR98SN-4; ALLOYS; CHALCOGENIDES; CHEMICAL REACTIONS; CHROMIUM ADDITIONS; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; IRON ADDITIONS; IRON ALLOYS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; REACTORS; TIN ALLOYS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; ZIRCALOY; ZIRCONIUM ALLOYS; ZIRCONIUM BASE ALLOYS; ZIRCONIUM COMPOUNDS

Optional Information

Secondary number(s)
SAM-COLOSS-P--043