Oxidation Kinetics of K Basin Fuel (OCRWM)

TRIMBLE, D.J.

Fluor Hanford, Inc.

关键词: Thermal Gravimetric Analysis;    Water Vapor;    Oxygen;    Spent Fuels;    N-Reactor;   

DOI  :  10.2172/805356
RP-ID  :  HNF-4206, Rev.1
RP-ID  :  AC06-96RL13200
RP-ID  :  805356

美国|英语

来源: UNT Digital Library

【 摘 要 】

Oxidation testing of K Basin-stored N Reactor fuel in dry air, moist air, and moist helium provided reaction rate data for the Spent Nuclear Fuel Project. The tests were performed on small samples from two spent nuclear fuel elements retrieved from the closed canisters of the K West Basin. The spent nuclear fuel samples were tested using a thermogravimetric analysis system modified for moist-gas operation to allow testing in moist environments. The tests were run at constant temperature and water vapor pressure. The moist helium tests used 6.5 H a water vapor, producing seventeen data between 75 C and 210 C. Eight of these data were excluded from primary consideration due to testing anomalies and balance drift issues. Regression analysis of the nine acceptable data provided good assurance that the moist-helium results are consistent with literature data within the temperature range of 25 C to 210 C. Concerns about possible oxygen poisoning from air in-leakage and mass transfer limitations on the test data were reviewed. If oxygen poisoning occurred it was not likely to have biased the data sufficiently to change the basic conclusions of comparability to the literature data. Mass transfer limitations did not appear to have had significant effect on the moist-helium data.