Subjects for practical use of enhanced accident-tolerance fuel components in LWRs

Nagase, Fumihisa 

As the lesson learned from the accident at the Fukushima Daiichi Nuclear Power Station, fuel components with enhanced accident tolerance are developed inside and outside Japan. It is required for the development to utilize intelligence, technologies, experiences, tools, and human resources accumulated, taking account of the particularity of the LWR fuel. This presentation introduces the definition of technical readiness levels created for efficient development, the evaluated influence of use of accident tolerant fuel components on core and plant design, fuel behavior and design, and accident progression, and the attribute guide which were obtained in cooperation with industry and universities.