NUREG: Environmental Evaluation of Accident Tolerant Fuels With Increased Enrichment and Higher Burnup Levels

概要

The U.S. Nuclear Regulatory Commission (NRC) is issuing NUREG- 2266, "Environmental Evaluation of Accident Tolerant Fuels with Increased Enrichment and Higher Burnup Levels." This study evaluates the reasonably foreseeable impacts of near-term accident tolerant fuel (ATF) technologies with increased enrichment and higher burnup levels for light-water reactors (LWRs) (i.e., a bounding analysis). The final NUREG was revised based on public comments to reflect a bounding analysis of up to 10 wt% U-235 enrichment for the uranium fuel cycle and decommissioning to, among other things, add transportation impacts for half-batch reloads, and to provide clarification on the use of NUREG-2266 if exceeding 10 wt% U-235 for uranium fuel cycle and decommissioning, exceeding 8 wt% U-235 enrichment for the transportation of fuel and waste, or exceeding assembly averaged burnup levels of 80 GWd/MTU.