Analytical criteria for fuel fragmentation and burst FGR during a LOCA

Autor: G. Khvostov
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nuclear Engineering and Technology, Vol 52, Iss 10, Pp 2402-2409 (2020)
Druh dokumentu: article
ISSN: 1738-5733
DOI: 10.1016/j.net.2020.03.009
Popis: Analytical criteria for the onset of fuel fragmentation and Burst Fission Gas Release in fuel rods with ballooned claddings are formulated. On that basis, the GRSW-A model integrated with a fuel behaviour code is updated. After modification, the updated code is successfully applied to simulation of the Halden LOCA test IFA-650.12. Specifically, the calculation with Burst Fission Gas Release during the test resulted in prediction of cladding failure, whereas it could not be predicted at the test planning, before new models were implemented. A good agreement of the current model with experimental data for transient Fission Gas Release in the tests IFA-650.12 and IFA-650.14 is shown, as well.
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