2016
DOI: 10.1016/j.nucengdes.2015.12.003
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CFD analysis of localized crud effects on the flow of coolant in nuclear rod bundles

Abstract: It has been suggested that crud deposits on a number of adjacent fuel rods might reduce coolant flow rates in associated sub-channels. Such reduced flow rates could then worsen thermal-hydraulic conditions, such as margin to saturated boiling, fuel surface temperature, and the DNB ratio. We report the results of a detailed computational fluid dynamics study of the flow pattern in a partially-crudded rod bundle. Values obviously depend on, for example, the thickness of crud assumed, but sub-channel flow rate re… Show more

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Cited by 12 publications
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References 14 publications
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