|About this Abstract
||MS&T23: Materials Science & Technology
||Ceramics for New Generation Nuclear Energy System Application
||Uncertainty Quantification and Propagation of NaCl-KCl-MgCl2 Thermodynamic Functions for Molten Salt Applications
||Jorge F. Paz Soldan Palma, Juliano Schorne-Pinto, Mina Aziziha, Ronald Booth, Theodore Besmann
|On-Site Speaker (Planned)
||Jorge F. Paz Soldan Palma
The CALculate PHAse Diagrams (CALPHAD) method coupled with uncertainty quantification and propagation (UQ & UP) is a tool for determining thermodynamic properties in a multicomponent region as a function of temperature and composition together with confidence intervals. These types of calculations provide upper and lower bounds of thermochemical property predictions for candidate salt mixtures and therefore are vital for molten salt reactor engineering applications. Additionally, the methodology can determine composition regions of high uncertainty where more experimental measurements are needed. The example of the NaCl-KCl-MgCl2 salt mixture is of particular interest as it is a proposed fuel solvent salt. The present work applies the open-source code ESPEI to perform UQ and UP calculations for compositional regions of interest in the pseudo-ternary system and explores compositions for molten salt reactor applications.