Rate theory scenarios study on fission gas behavior of U3Si2 under LOCA conditions in LWRs
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Fission gas behavior of U3Si2 under various loss-of-coolant accident (LOCA) conditions in light water reactors (LWRs) was simulated using rate theory. A rate theory model for U3Si2 that covers both steady-state operation and power transients was developed for the GRASS-SST code based on existing research reactor/ion irradiation experimental data and theoretical predictions of density functional theory (DFT) calculations. The steady-state and LOCA condition parameters were either directly provided or inspired by BISON simulations. Finally, due to the absence of in-pile experiment data for U3Si2’s fuel performance under LWR conditions at this stage of accident tolerant fuel (ATF) development, a variety of LOCA scenarios were taken into consideration to comprehensively and conservatively evaluate the fission gas behavior of U3Si2 during a LOCA.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC07-05ID14517; AC02-06CH11357; AC52-06NA25396
- OSTI ID:
- 1484711
- Alternate ID(s):
- OSTI ID: 1526773
- Report Number(s):
- INL/JOU-17-41560-Rev000
- Journal Information:
- Nuclear Engineering and Design, Vol. 326; ISSN 0029-5493
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A first-principles study on the influences of metal species Al, Zr, Mo and Tc on the mechanical properties of U 3 Si 2
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journal | January 2020 |
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