Assembly Design of Pressurized Water Reactors with Fully Ceramic Microencapsulated Fuel

Abstract

-Fully ceramic microencapsulated (FCM) fuel consists of TRISO (tristructural-isotropic) fuel particles embedded in a ceramic matrix (SiC)

SCALE Lattice Physics Code Assessments of Accident Tolerant Fuel

“…Target accuracy for the QOIs is given as follows: The target accuracy for k inf and four-factor terms was based on the acceptance criteria in the previous LWR code assessment work (Mertyurek et al 2017). The target accuracy for MTC and DTC were selected based on personal communications with experts, as well as MTC and DTC uncertainties that were estimated for a conventional PWR AP1000 17×17 fuel model using the Monte Carlo code Serpent (Shapiroa and Fratonib 2016). The target accuracies for the remaining QOIs were selected based on personal communications with experts in the field.…”

Features that Further Performance Limits of Nuclear Fuel Fabrication: Opportunities for Additive Manufacturing of Nuclear Fuels

“…As outlined, a compromise is required between achievable uranium density and fabrication processes that ensure low failure rates. This is a critical limitation in the technology, as uranium density and required enrichment govern the feasibility of these concepts when considered for new applications [39]. Additive manufacturing may lead to packing fractions and matrix quality that are superior to that available with conventional methods.…”