b'Accident Tolerant Fuel (ATF) Industry Teams Westinghouse Electric Company FY23 Accomplishments Principal Investigator: Ed J. LahodaTeam Members/Collaborators: Westinghouse Electric Company LLC (Westinghouse); General Atomics (GA); Bangor University (BU);Idaho National Laboratory (INL); Los Alamos National Laboratory (LANL); Oak Ridge National Laboratory (ORNL); University of Wisconsin (UW); University of South Carolina (USC); North Carolina State University (NCSU); University of Virginia (UVa); University of Bristol (UBr); Constellation Energy Corporation (EC) and Southern Nuclear Company (SNC); Air Liquide (AL), Karlsruhe Institute of Technology (KIT); Royal Institute of Technology (KTH)W estinghouse is workinglowers the cost of operation of to commercialize acci- nuclear plants while providing dent tolerant EnCore*increased accident tolerance. GA fuel (ATF) designs which includeis developing SiC cladding (SiGA) advanced Cr coatings using nitrogenthat provides high-temperature cold spray (NCS) on zirconium alloyfuel pin integrity in severe accident cladding and SiGA* silicon carbideconditions. Previous SiGA evalu-(SiC) cladding with the capabilityation has demonstrated minimal of using higher 235U enrichedcorrosion at 1600C in a steam ADOPTTM* fuel (doped UO 2 ) andenvironment steam oxidation U15N fuel (UN) to achieve burnupsultra-high temperature (UHT) of around 75 MWd/kgU and/ortest at Westinghouse Churchill.substantial power uprates. Accomplishments:Project Description: A topical report for fuel enrichments The Westinghouse ATF programabove 5% 235U was submitted to is deploying lead test assembliesthe Nuclear Regulatory Commission (LTAs) of Cr coated cladding with(NRC) June 28, 2023. The Vogtle ADOPT and UO 2pellets with greaterATF License Amendment Request than 5% enriched 235U higherfor the 5% 235U LTA program was with increased oxidation resistanceapproved by the NRC on August 1, to steam and air at design basis2023. Several lots of Cr coated tubes and beyond design basis accidenthave now been manufactured for conditions. The oxidation resistantthe Vogtle LTA. Final Request for cladding along with the greaterAdditional Information responses than 5% 235U fuel and U15N fuelfor the Incremental Burnup Topical provide utilities with fuel capableReport were submitted to NRC and of supporting economic 24-monthtesting to support the lead test rod cycles and/or significant uprates.(LTR) program for lectricit de This capability significantlyFrance is continuing. Data is being 132 2023|AFC ACCOMPLISHMENTS'