The 11th ISTC "Safety Assurance of NPP with VVER" is closed at OKB "GIDROPRESS"
The results of the 11th International Scientific and Technical Conference "Safety Assurance of NPP with VVER" held from 21 to 24 May at OKB "GIDROPRESS" (the Chief Designer of VVER reactor plants) are summarized. The event was held with participation of the State Atomic Energy Corporation Rosatom and the IAEA.
At the plenary session 16 reports were presented, prepared by well-known experts and representatives of leading Russian nuclear enterprises and organizations, as well as the IAEA and foreign organizations. These are: the report “Strategy 2018” (the State Corporation Rosatom), “The main results of the Concern Rosenergoatom NPPs operation in 2018. VVER technologies today and tomorrow” (Concern Rosenergoatom), “VVER technology evolution goals in two-component nuclear power engineering” (OKB "GIDROPRESS"). Various tasks arising when entering international markets, special issues on NPP safety (the IAEA, UJV Řež, IBRAE RAN, SEC NRS) were highlighted.
Issues on promising areas for development of VVER nuclear fuel (JSC TVEL) were also considered at the ISTC. To the participants’ attention a report justifying the in-core melt confinement was presented (concept IVR, UJV Řež, Czech Republic). At the plenary session, the importance of the stage of NPP power units commissioning (Atomtekhenergo) was noted. For the first time, development of steel for internals of advanced VVER-type reactors was discussed; the steel should provide a 60-years service life or more (CRISM Prometey). The results of tests and studies of metal of oversized blanks made of steel 15H2MFA-A, modification A, for Kursk NPP (Units with VVER) (TC «OMZ-Izhora» LLC) were presented.
A number of questions were specified at the subject sections, at which 150 reports were presented.
During the final session the participants noted that the goals set for the conference were fully achieved. The experience of VVER NPPs operation obtained for the period between the 10th and 11th conferences is summarized, problematic issues are discussed, and prospects for the further development of VVER technology are considered.