DEBRIS RESISTANT FUEL ASSEMBLY

A fuel assembly for nuclear reactors which comprises the usual upper and lower tie plates and fuel rods (6) extending between them is made debris-resistant by providing a grid spacer (2) in contact, or very nearly so, with the lower tie plate and so positioned as to subdivide the usual openings (14)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PATTERSON JOHN HOLZER ROLF, BROWN CHARLES
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A fuel assembly for nuclear reactors which comprises the usual upper and lower tie plates and fuel rods (6) extending between them is made debris-resistant by providing a grid spacer (2) in contact, or very nearly so, with the lower tie plate and so positioned as to subdivide the usual openings (14) in the lower tie plate (4) which are provided for the passage of cooling water. This causes debris to be trapped in the openings (14) of the lower tie plate (4), and keeps it from contacting the fueled portion of the assembly.