Oxidation of Spent Nuclear Fuel from Flawed RBMK-1000 Fuel Rods under Dry Storage Conditions

Oxidation of Spent Nuclear Fuel from Flawed RBMK-1000 Fuel Rods under Dry Storage Conditions

The effect of a humid nitrogen atmosphere with an oxygen content of 0.08, 0.48, 1.30 vol % and a temperature of 300°С on the change in the structure of the RBMK-1000 fuel composition vs. the size of the defect in the fuel cladding was investigated. It was demonstrated that in the case of fuel claddi...

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Veröffentlicht in:Radiochemistry (New York, N.Y.) N.Y.), 2022-06, Vol.64 (3), p.284-293
Hauptverfasser: Beznosyuk, V. I., Krinitsyn, A. P., Mishin, K. Ya, Metalidi, M. M., Nikandrova, M. V.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Composition
Nitrogen
Nuclear Chemistry
Nuclear fuel elements
Oxidation
Oxygen
Oxygen content
RBMK
Spent nuclear fuels
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Zusammenfassung:The effect of a humid nitrogen atmosphere with an oxygen content of 0.08, 0.48, 1.30 vol % and a temperature of 300°С on the change in the structure of the RBMK-1000 fuel composition vs. the size of the defect in the fuel cladding was investigated. It was demonstrated that in the case of fuel cladding damage with an area of more than 0.8 mm 2 , SNF storage in a nitrogen atmosphere with an oxygen content of more than 0.5 vol % at a temperature of 300°C brings about a rather rapid oxidation of the fuel composition to U 3 O 8 . Thus, dry storage of SNF should be carried out without access to oxygen.
ISSN:1066-3622
1608-3288
DOI:10.1134/S1066362222030043