|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||Improvements to TRISO Based FCM Fuel Performance Modeling
||Daniel Schappel, Kurt Terrani, Brian Wirth
|On-Site Speaker (Planned)
TRISO-FCM (TRIstructural-iSOtropic) (Fully enCapsulated Microceramic) fuel is a future possibility for reducing the release of radioactive contamination to the environment as result of an accident. The proposed fuel form involves embedding TRISO particles in a NITE (Nano Infiltrated Transient Eutectic) silicon carbide matrix with zircaloy cladding for use in a light water reactor (LWR). Using the BISON finite element code developed by Idaho National Laboratory, it is possible to simulate a large collection of discrete TRISO particles. It is also possible to estimate the TRISO particle interface debonding and matrix fracture behavior. Additionally, a preliminary thermal diffusion based model for silver and cesium release has been developed. Recent work includes using simulations to investigate the sensitivity of pyrolytic carbon irradiation induced dimensional change to factors such as hydrostatic stress and swelling accelerated creep.
||Planned: Supplemental Proceedings volume