| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Thermodynamics of Materials in Extreme Environments
|
| Presentation Title |
Thermochemical Modeling of Molten Salt Systems for Reactors and Simulations with the Molten Salt Thermodynamic Database |
| Author(s) |
Theodore Besmann, Kaitlin E. Johnson, Johnathan C. Ard, Jacob A. Yingling, Matthew S. Christian, Juliano Schorne Pinto, Jacob W. McMurray, Markus H. A. Piro |
| On-Site Speaker (Planned) |
Theodore Besmann |
| Abstract Scope |
Molten salt reactors (MSRs), with salt as the fuel/coolant or solely the coolant, requires a close understanding of salt properties to be able to simulate normal and off-normal operations. Among the most important are the thermochemical properties of the salt, that is the Gibbs energy relations for the complex liquid and solid solutions as these provide thermal properties as well as critical phase equilibria such as solidus and liquidus. Models for the pseudo-binary and -ternary fluoride and chloride salt systems are being compiled, and where necessary developed, to provide a thermochemical resource. The molten salt thermochemical database (MSTDB) is being implemented with the thermochemical solver THERMOCHIMICA in prospective MSR simulation codes for use in reactor design, simulated reactor operations, and assessment of off-normal scenarios to support regulatory activities. The presentation will cover current modeling and development of MSTDB, and provide the context for its use in reactor simulation. |