Validation practices for plant thermal-hydraulic analyses with multi-level approach in ARKADIA-design for safe design of advanced nuclear reactors

Tanaka, Masaaki; Mori, Takero; Yoshimura, Kazuo; Hamase, Erina; Doda, Norihiro; Matsushita, Kentaro; Kikuchi, Norihiro; Yoshikawa, Ryuji; Ezure, Toshiki

no journal, , 

An artificial intelligence (AI) aided integrated digital system named ARKADIA is being developed to offer the best possible solutions for challenges arising during the design process, safety assessment, and operation of a nuclear plant. Focusing on the virtual plant simulation system developed in ARKADIA-Design as a part of the ARKADIA, representative validation practices are introduced in the development of the numerical analysis methods with the multi-level (ML) approach to predict static and transient plant thermal-hydraulic phenomena under normal operating conditions and design basis events for an advanced reactor design study. And future works for necessary validation studies to establish AKADIA-Design are discussed.