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Postirradiation examination and evaluation of Peach Bottom fuel test elements FTE-14 and FTE-15

Technical Report ·
DOI:https://doi.org/10.2172/6310141· OSTI ID:6310141
Peach Bottom fuel test elements FTE-14 and FTE-15 were companion nonaccelerated tests of fuel rods and fuel particles representative of the Large High-Temperature Gas-Cooled Reactor (LHTGR). The purpose of the tests was to broaden the data base of H-327 graphite and various fuel types; specifically, UO/sub 2/, UC/sub 2/, weak acid resin UC/sub x//O/sub y/, and several fertile fuel types were tested. The irradiation reached peak fuel temperatures of 1600/sup 0/C volume- and time-averaged temperatures of 1300/sup 0/C, and fast fluence exposures up to 2 x 10/sup 25/ n/m/sup 2/ (E > 29 fJ)/sub HTGR/. Experimental results were compared with predictions based on accelerated irradiation tests, postirradiation heating, and other Peach Bottom test elements to validate HTGR design codes. The nuclear design predictions were modified by measurements which allowed the verification of thermal design calculations and thermocouple readings.
Research Organization:
General Atomic Co., San Diego, CA (USA)
DOE Contract Number:
EY-76-C-03-0167-065
OSTI ID:
6310141
Report Number(s):
GA-A-13944
Country of Publication:
United States
Language:
English