Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Murakami, Kenta*; Arai, Taku*; Yamada, Koji*; Momma, Kensuke*; Tsuji, Takashi*; Nakagawa, Nobuyuki*; Onizawa, Kunio
Transactions of the 27th International Conference on Structural Mechanics in Reactor Technology (SMiRT 27) (Internet), 3 Pages, 2024/03
This paper studied the future vision of codes and standards in Japan by systematically comparing Japanese regulatory rules, standards, and industry guides related to long term operation with international safety standards, and confirmed that the Japanese standard system generally meets their recommendations. The recommendation for the future improvements of Japanese codes and standards were summarized into five items.
Asayama, Tai
no journal, ,
Following the Strategic Roadmap issued by the Japanese government, various types of fast reactor design will be explored. This requires the development of a set of codes that make the most of new ideas of fast reactor design. This presentation gives an introduction to the activities led by JAEA to establish such codes which is based on the System Based Code concept.
Asayama, Tai
no journal, ,
This paper presents a future vision for safety and structural code development for advanced non-light water reactors. The most important feature that these codes and standards should have is that they ensure that safety goals are met in the way most appropriate and practical to the characters of new reactors which could be significantly different from those of light water ones. For this purpose, the author proposes a universal structure which consists of goals, codes and standards and knowledge base. The goals will be defined in terms of safety, reliability and economy. Codes and standards will form a seamless structure which provides multiple pathways with intermediary targets that correlate the goals and candidate technical options for structure and component design. Margins will be allocated in a plant lifecycle utilizing the System Based Code Concept. Knowledge bases will support codes and standards and allows for timely technical updates. As a future vision, a concept of digitalized autonomous code in which autonomous technical updates of provisions are realized is presented.