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Fission-gas-induced swelling in extended burnup fuel during high temperature transients

Conference ·
OSTI ID:5338722
Analyses of fission-gas-induced fuel swelling in low and medium burnup (7 to 16 GWd/tU) fuel tested under power-cooling-mismatch (PCM) conditions in the Power Burst Facility (PBF) have been extended to a high burnup (50 GWd/tU) pressurized-water-reactor-type commercial fuel rod. The fission-gas-induced fuel swelling and the total calculated swelling, which is the sum of swelling due to fission gases, thermal effects, and solid fission products, were 6 and 10.1%, respectively. The results suggest that fuel swelling due to retained fission gas during a high temperature PCM transient does not present a significant safety issue. To verify the analyses, consideration should be given to performing typical PBF PCM tests with extended burnup fuel.
Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
5338722
Report Number(s):
EGG-M-00282; CONF-820472-1; ON: DE82017731
Country of Publication:
United States
Language:
English