Accident Tolerant Fuel Update Report 2020-2023

This technical report provides an update on the advancements in Accident Tolerant Fuel (ATF) concepts from 2020 to 2023. It outlines the ongoing research and development efforts aimed at enhancing the safety of nuclear energy through improved fuel and cladding materials. The report details the latest findings on ATF cladding, focusing on three primary materials: Cr-coated zirconium alloys, ferritic FeCrAl alloys, and SiC-based composites. Each material is evaluated for its performance during normal operations and severe accident scenarios, highlighting their potential benefits and existing challenges. The document also discusses the qualification and licensing processes for new nuclear fuels, as well as economic considerations related to ATF deployment. The report aims to inform nuclear fuel engineers and designers about the current state of ATF technologies and their implications for safety and operational efficiency in nuclear power plants.