NRRC (Nuclear Risk Research Center) is focusing on support of voluntary safety improvement activities of electric utilities. In this paper, several approaches to implement good PRA are described....
英字タイトル:
Approach of NRRC for implementation of Good PRA

When an excess pressure and temperature are added to a containment vessel (CV) of a nuclear power plant (NPP) by a severe accident, overpressure damage of the CV is assumed to be possible. When the CV falls into such a situation, radioactive materials in the CV are released into the environment. Filtered containment venting systems (FCVS) that is installed in the exhaust systems reduce pressure in the CV while mitigating the release of the radioactive materials by the multi-scrubbers (venturi-scrubber, wet ...
英字タイトル:
Development of technical basis for filtered containment venting system and its utilization

A sodium cooled fast breeder reactor (FBR) has unique systems and components and different degradation mechanism from light water reactor (LWR) so that need to establish maintenance technology in accordance with its features. The examination of the FBR maintenance technology is carried out in the special committee for considering the maintenance for Monju established in the Japan Society of Maintenology (JSM). As a result of the study such as extraction of Monju maintenance feature, maintenance technol...
英字タイトル:
Principles of MONJU Maintenance - Characteristic of MONJU maintenance and reflection of LWR maintenance experience to FBR-