About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advancements in Molten Salt/Metal Technology in Energy Applications: From Atoms to Plants
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| Presentation Title |
Experimental calorimetry of heat capacity and mixing enthalpy of molten chloride salts |
| Author(s) |
Xiaofeng Guo, Hongwu Xu, Zi-Kui Liu, Vyacheslav Bryantsev, Aurora Clark, Dev Chatterjee |
| On-Site Speaker (Planned) |
Xiaofeng Guo |
| Abstract Scope |
The high vaporization temperature and low vapor pressure of some molten salt systems make them excellent mediums for nuclear fuel, reactor coolant, and thermal energy storage. In this talk, I will summarize our recent efforts on measuring key thermochemical properties of molten chloride salt systems, including heat capacity and enthalpy of mixing. In the first case study, we measursed the high temperature heat capacity (Cp) of MgCl2-NaCl, a candidate heat transfer fluid and simulated fuel carrier component for MSR. Cp values were derived from drop calorimetric on both physical and pre-melted mixtures in the 400 - 800 ˚C range, crossed checked with reported NIST literature values. Impacts from line compound formation were discussed. In the second case study, we evaluated the enthalpies of mixing (ΔHmix) of LaCl3 or UCl3 in LiCl–KCl eutectic or NaCl melts at high temperatures using drop calorimetry. |