Our colleagues participated in the International Conference 2019 Recent & Future held on 11 - 12 November 2019 in Prague.
We had a presentation about experience gained from numerical analysis of RPV in conditions of core melting accident.
Abstract:
In Vessel Retention is an important part of severe accident management. This strategy was adopted for all VVER-440/V213 reactors operated in EU
countries. Over the past 13 years our work was dedicated to assessing the stress-strain response of the VVER-440/V213 reactor vessel in the conditions
of core melting accident with external reactor vessel cooling practically for all NPPs in the Central Europe. Our work was exclusively focused on the numerical
simulation of the temperature and stress-strain field in the vessel which is externally cooled and internally in contact with the core melt. The presentation is
focused on the approach used in numerical simulation, boundary conditions (thermal load acting on inner reactor surface, external reactor vessel cooling),
used material models and used material data, its measurement and verification. The achieved results, general trends and characteristics of stress and strain
response of RPV are summarised in the presentation.
We are glad that we supported the conference and were a part of it.
