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Qualification of the B and W Mark B fuel assembly for high burnup. Third semi-annual progress report, July-December 1979

Technical Report ·
DOI:https://doi.org/10.2172/6869098· OSTI ID:6869098
Five Babcock and Wilcox-designed Mark B (15 x 15) pressurized water reactor fuel assemblies were irradiated to extended burnups in Duke Power Company's Oconee Unit 1 reactor. An assembly average burnup of 40,000 MWd/mtU, which is about 29% greater than previous discharge burnups at Oconee 1, was attained. The nondestructive examination of these five assemblies, which have been irradiated for four fuel cycles, was begun. Data obtained included fuel assembly and fuel dimensions, water channel spacings, fuel rod surface deposit samples, and holddown spring preload forces. Visual examination of the assemblies indicated that good fuel performance was maintained through four cycles of irradiation.
Research Organization:
Babcock and Wilcox Co., Lynchburg, VA (USA)
DOE Contract Number:
AC02-78ET34212
OSTI ID:
6869098
Report Number(s):
DOE/ET/34212-27
Country of Publication:
United States
Language:
English