|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accident Tolerant Fuels for Light Water Reactor
||Simulation of Iron-chrome-aluminum Alloy Cladding under LOCA Conditions Using the BISON Fuel Performance Code
||R. Sweet, Kurt Terrani, Brian Wirth
|On-Site Speaker (Planned)
Iron-chromium-aluminum (FeCrAl) alloys have been identified as a potential candidate for replacing currently used Zr-alloys as light water reactor (LWR) fuel cladding because they exhibit slower oxidation kinetics in high-temperature steam. This will decrease the energy release due to oxidation and slowing cladding consumption in the presence of high temperature steam, leading to increased flexibility to achieve core cooling in accident conditions. As a continuation of the development for these alloys, cladding performance during accident and transient events must be identified.
This research targets cladding behavior during accident scenarios, such as a large-break loss-of-coolant-accident (LBLOCA). This is performed by modeling the integral thermo-mechanical performance of a FeCrAl-cladding fuel rod under these anticipated conditions using the MOOSE-based, finite-element fuel performance code BISON. Results from these simulations are then compared against similar results for Zircaloy, utilizing a similar fuel rod design and material-specific cladding burst models implemented in BISON.
||Planned: Supplemental Proceedings volume