Abstract
Analysis of LiF-BeF2-UF4 (otherwise known as FLiBe) Molten Salt is crucial for understanding the fluid mechanics in novel Molten Salt Reactors (MSRs). Developing a comprehensive set of benchmarks for representative pipe configurations of an MSR containing FliBe salt is instrumental for the safety analysis and regulatory processes for the reactor. This work presents a methodology to create several fluid flow benchmarks for various simulated pipe configurations using FLiBe Molten Salt, although these results hold for any single-phase fluid. Six analytic benchmarks were developed, and simulation results using the System Thermal Hydraulics (SyTH) code were compared against the reference values from these benchmarks. The benchmarks range in complexity from a horizontally variably heated smooth pipe to a full cylindrical reactor core of a representative SyTH successfully matched all benchmarks within a 0.30% error margin for total pressure change MSR. and within a 0.009% error margin for total temperature change.
| Original language | English |
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| Title of host publication | Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025 |
| Publisher | American Nuclear Society |
| Pages | 157-166 |
| Number of pages | 10 |
| ISBN (Electronic) | 9780894482229 |
| DOIs | |
| State | Published - 2025 |
| Externally published | Yes |
| Event | 2025 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025 - Denver, United States Duration: Apr 27 2025 → Apr 30 2025 |
Publication series
| Name | Proceedings of the International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025 |
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Conference
| Conference | 2025 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2025 |
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| Country/Territory | United States |
| City | Denver |
| Period | 04/27/25 → 04/30/25 |
Funding
This research was funded through a grant from the State of Texas for the Digital Molten Salt Reactor Initiative. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing computational resources that have contributed to the research results reported within this paper. The software used for this research was made available via RSICC (MPACT/VERA) and by the University of Texas at Austin, which was originally developed through a sponsored research agreement with Natura Resources (SyTH).
Keywords
- FLiBe
- Fluid Flow
- MSR
- SyTH