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
CNSC-NRC Interim joint report on TRISO Fuel Qualification This interim report specifically addresses (1) reactor technologies considered in the study, (2) the regulatory basis for advanced nuclear reactor fuel qualification in Canada and the United States, (3) known degradation mechanism and failure modes for TRISO fuel, and (4) transient behavior of TRISO fuel. draft joint report
CNSC-NRC TRISO Fuel Evaluation - Interim Report 2 The second of four interim reports to be released.  This report incorporates the content of the first interim report and provides additional information on fuel manufacturing (including dimensions, constituents, and end-state attributes) and criteria for coolable geometry. draft 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
Westinghouse eVinci Westinghouse has begun pre-application engagement on several topics related to the eVinci micri-reactor design.  white papers
X-Energy
Xe-100 Topical Report TRISO-X Pebble Fuel Qualificaiton Methodology topical report
(under review)

Page Last Reviewed/Updated Wednesday, May 04, 2022