FZD research activities for VVER NPPs

Within the framework of reactor safety research of the German Federal Ministry of Economics, the scientific-technical cooperation of selected topics with Russian institutions is supported. Some of these topics are performed by the Institute of Safety Research of the Forschungszentrum Dresden-Rossendorf (FZD) together with Russian institutes. The paper summarizes selected results for the following topics:

• Contribution to the validation of the Russian thermalhydraulic code KORSAR
• Safety analysis for VVER Reactors
• 3D fluiddynamic calculations
• Neutron embrittlement of RPV vessels
• Validation of neutron fluence calculations
• Post operation investigation of RPV material from Greifswald NPP
• Neutron dosimetry of VVER 1000