Design Features of Tsuruga-3 and 4, The First APWR Plant in Japan

Abstract

The APWR is a light water reactor, which employs many innovations for improving safety, reliability and operability aspects. The main features of the design improvements of APWR are: Flexible core design to meet future requirement of operation with mixed oxide fuel (MOX) and high burn up; Reliability enhancements in reactor internals, steam generators and other key components; Safety enhancements in engineered safeguard systems which increase redundancy, diversity and independence; Improvements in plant operation by employing the latest I and C systemin addition to the improvements in core design, safety, reliability and operability, many economic challenges have been addressed in progressing the design work of Tsuruga 3 and 4. This report presents the design overview and approach of the economic challenges for Tsuruga 3 and 4 that will be the first units of APWR in Japan.