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Title: Rate theory scenarios study on fission gas behavior of U3Si2 under LOCA conditions in LWRs

Journal Article · · Nuclear Engineering and Design
ORCiD logo [1];  [2];  [3];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  3. 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
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (1)

A first-principles study on the influences of metal species Al, Zr, Mo and Tc on the mechanical properties of U 3 Si 2 journal January 2020