b'Accident Tolerant Fuel (ATF) and High Burnup -Higher Enrichment (HBHE) Fuel Industry Teams Principal Investigator: Westinghouse Electric Company LLCPrincipal Investigator: E. J. LahodaTeam Members/ Collaborators: Westinghouse Electric Company LLC, General Atomics (GA), Massachusetts Institute of Technology (MIT), Idaho National Laboratory (INL), Los Alamos National Laboratory (LANL), Exelon Nuclear, University of Wisconsin (UW),National Nuclear Laboratory (United Kingdom) (NNL), Army Research Laboratory (ARL)/VRC/MOOG, University of Virginia, University of South Carolina, Oak Ridge National Laboratory (ORNL), Fauske & Associates, Rensselaer Polytechnic Institute (RPI), University of Texas at San Antonio, Air Liquide (AL)Westinghouse EnCoreW *pellets and with 5% enriched U235 estinghouse is working to commercialize uniquepellets to increase achievable burnups Fuel is game-changingaccident tolerant EnCore to 75 MWd/kgU, allowing economic for the nuclear industry,fuel (ATF) designs with the capability of24-month cycles in pressurized water significantly increasingusing higher U235 enriched ADOPTTM*reactors. Additional tasks include:safety margins in severefuel or U15N fuel to achieve burnups of Develop oxidation resistant UN and around 75 MWd/kgU; SiGAsilicon accident scenarios,TM* production technologies;increasing flexibilitycarbide (SiC) cladding with higher Develop low cost methods for manu-for fuel managementU235 enriched fuel and Sn bonding or U15N fuel uranium nitride (UN) fuel. facturing SiC and Cr coated rods;and enabling higher High temperature out-of-reactor burnups for longer fuelProject Description: testing of Cr coated cladding to cycles which can lowerLead test rods (LTRs) of Cr coated clad- validate the MAAP and MELCOR codes operating costs. ding were loaded into the Byron Unit 2to determine potential operational sav-reactor on April 23, 2019 and the Doelings and to support licensing changes;4 reactor in July, 2020. Cr coated Zr Continue NRC licensing interactions claddings with ADOPT and UO 2pelletsaimed at implementation of regions were also loaded in the Advanced Testin the mid-2020s.Reactor (ATR) in mid-2020. SiC clad tubes with Mo pellets will be loaded*EnCore and ADOPT are trademarks or into the Massachusetts Institute ofregistered trademarks of Westinghouse Technology Reactor (MITR) in earlyElectric Company LLC, its affiliates 2021. Cr coated Zr cladding and SiCand/or its subsidiaries in the United cladding will be loaded into the BR-2States of America and may be regis-as part of the Il Trovatore program attered in other countries throughout the end of 2020. the world. SiGA is a trademark of General Atomics, its affiliates and/or The immediate tasks are aimed atits subsidiaries in the United States of design and licensing with the requiredAmerica and may be registered in other experimental backup to obtain U.S.countries throughout the world. All Nuclear Regulatory Commissionrights reserved. Unauthorized use is (NRC) approval for insertion of leadstrictly prohibited. Other names may be test assemblies (LTAs) in 2021 ortrademarks of their respective owners.2022 of Cr coated Zr with ADOPT 34 2020|AFC ACCOMPLISHMENTS'