Fuel Qualification Guidance for TRi-structural ISOtropic (TRISO) Fuel

Description of TRi-structural ISOtropic (TRISO) Fuel

Tristructural isotropic (TRISO)-coated particle fuel is foundational for many high-temperature reactor (HTR) designs, including high-temperature gas-cooled reactors (HTGRs) and fluoride salt-cooled high-temperature reactors (FHRs).  The U.S. Department of Energy initiated the Advanced Gas Reactor Fuel Development and Qualification (AGR) Program in 2002 to establish U.S. capability to fabricate high-quality uranium oxycarbide (UCO) TRISO fuel and demonstrate its performance.

Document Description Type
EPRI-AR-1 (NP)-A Provides technical bases that demonstrate the functional performance of Uranium Oxycarbie (UCO) TRISO-coated particles to support the use of these particles in a variety of high-temperature reactors. This report was reviewed and approved by NRC (with limitations and conditions). topical report
U.S. NRC—CNSC Memorandum of Cooperation FINAL REPORT concerning Tristructural Isotropic (TRISO) Fuel Qualification) This report establishes a common regulatory position on TRISO fuel qualification based on existing knowledge and data and identifies potential design-dependent gaps that should be addressed to enable TRISO use in advanced reactor licensing applications. Specifically, this report summarizes data, criteria, and approaches that can help support fuel-related regulatory findings for TRISO-fueled reactor designs. Previously released interim reports are available at ML22030A000 and ML22101A297. Final Joint Report
Kairos Power
KP-TR-009 KP-FHR Fuel Performance Methodolgy topical report
(under review)
KP-TR-011 Fuel Qualification Methodology for the Kairos Power Fluoride Salt-Cooled High Temperature Reactor topical report
(under review)
Westinghouse eVinci Westinghouse has begun pre-application engagement on several topics related to the eVinci micri-reactor design.  white papers
Xe-100 Topical Report TRISO-X Pebble Fuel Qualificaiton Methodology Approved