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COOLANT CHEMISTRY AND CORROSION

FUEL MATERIAL

View allAccident Tolerant FuelInterim Dry StorageManufacturingAnnual Reports Presenting Key Results Published During 18 MonthsOther IssuesCorrosion and Hydriding of Zr AlloysProperties of Hydrides and Impact on Fuel In-Reactor PerformanceDimensional Changes of Fuel Assemblies/Channels and ComponentsMechanical PropertiesLOCA and RIA Fuel PerformanceFuel (UO2 and MOX) PerformanceFuel ReliabilityMicrostructure of Zr Alloys and Effects on Performance
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Processes Going on in Nonfailed Rod During Normal Operation — Vol. I

(ZIRAT15/IZNA10 STR)
With increased burnup, processes going on inside a nonfailed fuel rod decrease pellet density, lower the fuel melting temperature and thermal conductivity, increase the fission gas release. Also, a high burnup structure is formed at pellet average burnups in excess of about 50 MWd/kgU This volume I of the report describes the processes going on inside a nonfailed fuel rod during normal operation. The associated volume II of the report describes the corresponding information during accident conditions (RIA and LOCA).

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Processes Going on in Nonfailed Rod During Accident Conditions (LOCA and RIA) — Vol. II

(ZIRAT15/IZNA10 STR)
Processes going on inside a nonfailed fuel rod may have dramatic impact on fuel performance during normal operation and during accident conditions such as Loss Of Coolant Accident (LOCA) and Reactivity Initiated Accident (RIA) This volume II of the report describes the above information during accident conditions (RIA and LOCA). The associated volume I of the report describes the processes going on inside a nonfailed fuel rod during normal operation.

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