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Title: Applications of Thermochemical Modeling in Molten Salt Reactors

Journal Article · · Materials
DOI: https://doi.org/10.3390/ma17020495 · OSTI ID:2282226

The extensively evaluated and consistent thermodynamic database, the Molten Salt Thermal Properties Database—Thermochemical (MSTDB-TC), was used along with additional thermodynamic values from other sources as examples of ways to examine molten salt reactor (MSR) fuel behavior. Relative stability with respect to halide potential and temperature for likely fuel and fission product components were mapped in Ellingham diagrams for the chloride and fluoride systems. The Ellingham diagrams provide a rich, visual means for identifying halide-forming components in proposed fuel/solvent salt systems. Thermochemical models and values from MSTDB-TC and ancillary sources were used in global equilibrium calculations to provide compositions for a close analysis of the behavior of a possible Molten Chloride Salt Fast Reactor and a Molten Salt Reactor Experiment-type system at high burnup (100 GWd/t). The results illustrated the oxidative nature of burnup in MSRs and provided information about redox behavior and possible control.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); University of South Carolina, Columbia, SC (United States)
Sponsoring Organization:
USDOE; USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP); USDOE Office of Nuclear Energy (NE). Nuclear Energy Advanced Modeling and Simulation (NEAMS)
Grant/Contract Number:
AC05-00OR22725; AC07-05ID14517; NE0008985
OSTI ID:
2282226
Report Number(s):
INL/JOU--24-77702-Revision-0; PII: ma17020495
Journal Information:
Materials, Journal Name: Materials Journal Issue: 2 Vol. 17; ISSN MATEG9; ISSN 1996-1944
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Switzerland
Language:
English

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