Application of SCALE to Molten Salt Fueled Reactor Physics in Support of Severe Accident Analyses

SCALE Modeling of the Sodium Cooled Fast-Spectrum Advanced Burner Test Reactor

“…The work presented in this report focuses on the application of SCALE for SFR analysis. This work follows previous studies in which SCALE was used for the simulation of heat pipe reactors (HPRs) [26], high-temperature gas-cooled reactors (HTGRs) [17], fluoride salt-cooled high-temperature reactors (FHRs) [1], and molten salt reactors (MSRs) [12]. The corresponding MELCOR studies are found in separate reports [24,23,25].…”

Molten Salt Reactor Experiment Simulation using Shift/Griffin

“…The removal rate of gaseous fission products such as Xe and Kr is 4.067E-05/s, whereas the removal rate of the soluble and insoluble metals, including Se, Nb, Mo, Tc, Ru, Rh, Pd. Ag, Sb, and Te, is 8.777E-03/s [18]. Because the current version of Shift is incapable of simulating the fractional removal of fission products, Serpent was utilized to generate the time-dependent macroscopic cross sections.…”

Conceptual Design of Engineering-Scale Molten Salt Spill Tests to Support Molten Salt Reactor Licensing

“…Using surrogates instead of adding transuranic elements to the salt (e.g., cerium in place of plutonium) is recommended. Recipes for surrogate fuel salt may be inspired from chemical analyses of the fuel salt inventory made during the MSRE (Compere et al, 1975) and depletion calculation results for MSRs (Fei et al, 2022;Lo et al, 2022;McMurray et al, 2021;Taube, 1978). It is recommended that additions to the tested salt compositions be simplified by selecting surrogate fission products to represent those with similar expected chemical behavior.…”