Fuel channels with off-centerline welds

Details Fuel channels with off-centerline welds Fuel channels with off-centerline welds

1995-09-29

1996-11-12

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Miscellaneous

376434, 376443, G21C 3324

Patent

active

055747612

ABSTRACT:
A nuclear fuel channel has four corners and four elongated sidewalls disposed between the corners so as to provide a polygonal transverse cross-section. Each of the channel sidewalls has a longitudinal centerline that coincides with a line of maximum stress that is imposed on the sidewall during in-reactor service. The sidewalls have one or more longitudinal off-center lines that are located between the longitudinal centerline and one of the corners abutting the elongated sidewall. The longitudinal off-center line coincides with a line of minimum stress imposed on an elongated sidewall during in-reactor service. A weld is formed along the length of the off-center line on at least two of the sidewalls. At least one of the off-center line welds is also a seam weld. The disclosed arrangement provides improved resistance to bulging of the channel sidewalls during in-reactor service.

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