抄録
After the great earthquake and a tsunami as consequence March 11, 2011, a severe accident happened at nuclear power plant Fukushima Daiichi. The severe accident lead to core damage and containment failure and finally to large release of radioactive substances to the environment. As part of the severe accident management and to reinforce the mitigation concepts against a containment failure, the Filtered Containment Venting System (FCVS) will be introduced at Japanese nuclear power plants, to have a possibility to depressurize safely and reliable the containment via a filtered process. This paper describes AREVA FCVS technology and its application for Japanese BWRs and also the background of the qualification and the licensing approach.
