Fuel-rod/support-grid scratching and friction (LWBR development program)

Technical Report · Mon Oct 01 00:00:00 EDT 1979

OSTI ID:5801078

Stout, J W

Equations have been developed from test measurements for use in defining the anticipated range of potential fuel-rod scratch depths resulting from rod-grid interaction during LWBR module assembly. Correlations estimating the friction coefficients expected between the AM-350 support grids and the Zircaloy-clad fuel rods have also been derived. Experience with the use of a colloidal graphite suspension as a clad lubricant to facilitate fuel-rod installation and minimize clad assembly damage is described. Inspection results concerning clad scratches which occurred during the actual rod-installation phase of LWBR assembly appear consistent with the subject test findings.

• Research Organization: Bettis Atomic Power Lab., West Mifflin, PA (USA)
• DOE Contract Number: EY-76-C-11-0014
• OSTI ID: 5801078
• Report Number(s): WAPD-TM-1164
• Country of Publication: United States
• Language: English

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FUEL ELEMENTS
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