1980•University of North Texas Digital Library (University of North Texas)Open access

Failure analysis of carbide fuels under transient overpower (TOP) conditions. [LMFBR]

Duc H. Nguyen

Abstract

The failure of carbide fuels in the Fast Test Reactor (FTR) under Transient Overpower (TOP) conditions has been examined. The Beginning-of-Cycle Four (BOC-4) all-oxide base case, at $.50/sec ramp rate was selected as the reference case. A coupling between the advanced fuel performance code UNCLE-T and HCDA Code MELT-IIIA was necessary for the analysis. UNCLE-T was used to determine cladding failure and fuel preconditioning which served as initial conditions for MELT-III calculations. MELT-IIIA determined the time of molten fuel ejection from fuel pin.

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Key concepts: Nuclear engineering, Cladding (metalworking), Materials science, Transient (computer programming), Carbide, Fuel cycle, Metallurgy, Engineering