Safety Researches on LWR Loss-of-Coolant Accident

抄録

On the LWR LOCA safety, many experimental and analytical works were performed in the governmental organization and the nuclear industries. The works covers not only LOCA ECCS studies but also studies on containment spray, hydrogen diffusion in the containment, pressure suppression and pipe behavior. The reactor safety is demonstrated with many large scale test facilities in the works. The results were applied to improve the design, operation procedure and guide-line of regulation of LWRs and also to develop advanced computer codes. In this paper described are the major research accomplishments in Japan on engineered safety features of the LWRs for a LOCA. Also described are the studies on coolability of a severed damaged core.