About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
2025 Undergraduate Student Poster Contest
|
| Presentation Title |
SPU-40: Thermal Conductivity Measurements of High Temperature Fluoride and Chloride Salts |
| Author(s) |
Samuel Nasman, Troy Munro, Jacob Numbers, Britton Baltich, Isaac Walker, Andrew Christiansen, Ryan Ruth, Hailey Snodgrass |
| On-Site Speaker (Planned) |
Samuel Nasman |
| Abstract Scope |
To address the difficulty in predicting thermal hydraulic behavior of molten salt reactors (MSRs), experimental efforts at BYU aim to obtain reliable measurement data for relevant molten salt mixtures that provide both composition and temperature dependence. Improvements to a modified transient hot wire “needle probe” measurement device enable thermal conductivity measurements of fluoride and chloride salts at elevated temperature ranges. A redesigned crucible apparatus permits repeatable actinide measurements and accelerated testing throughput, providing the ability to perform compositional studies around the eutectic for challenging salts. A method of calibration is also developed to enhance the accuracy of the thermal conductivity measurements. The salts being tested include alkali halide salts and actinide-bearing mixtures such as NaCl-UCl3 and FLiNaK+UF4 of varying compositions. These results will provide valuable contributions to the running MSTDB-TP database and help inform future DOE-sponsored NEAMS codes. |