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As in a loss-of-coolant incident, high burnup fuels in excess of 6268 GWd/MTU has been found to severely fragment when exposed to temperature transient conditions. The aim of this research was to perform a comprehensive, holistic investigation of fuel fragmentation, relocation, and dispersal under loss-of-coolant conditions in order to reveal data gaps in the experimental data base. A comprehensive knowledge of pretransient fuel rod conditions, diagnosis of prototypic loss-of-coolant accident conditions, identification of the differences between nuclear and electric integral loss-of-coolant accident measurements, and connection of fuel rod performance to fuel fragmentation, relocation, and dispersal severity are among the key points identified as data gaps. Lastly, the content of this manuscript suggests a definite route for connecting testing and data processing to commercial use by delivering concrete methods for filling data gaps and prioritized testing methods.
Source link: https://www.osti.gov/biblio/1756250
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