Analysis of fuel cycle scenarios for a two-unit SCWR NPP

摘要

Abstract According to the analysis of the nuclear fuel cycle (NFC) for a?two-unit NPP, based on supercritical water-cooled reactors (SCWRs), the priority option for three aggregated criteria includes the start-up of the reactor using mixed uranium-plutonium oxide fuel and processing of spent fuel assemblies (FAs) after 7?years of internal storage. The backup option involves the operation of the reactor using uranium oxide fuel for 10?years followed by a?phased transition to full core loading with mixed uranium-plutonium oxide fuel. The results of the performed analysis can be used to enhance the efficiency of design solutions for SCWR NPPs, as well as to assess the NFCs of a?two-component nuclear power system with SCWR NPPs, including uranium-plutonium and thorium-uranium NFCs and/or their combinations.