The KMS test facility is a full-scale model of NPP containment with VVER reactors. It was designed accounting for the advanced world’s and national experience in simulating accident scenarios of VVER NPPs.
The large-scale facility is intended for:
- Conduction of verification experiments for modern 3D computer codes used to describe thermo-hydraulic processes inside containment during NPP accidents;
- Testing and verification of design concepts for passive safety systems in new generation VVER NPPs;
- Conduction of experiments to demonstrate hydrogen safety inside NPP containments using helium as hydrogen simulant.
|Material||St09G2S steel of Russian grade|
|Height of cylindrical element, m||10.9|
|Total weight of metal structures, t||126|
|Volume (air), m3||1830|
|Number of compartments||11|
|Maximum pressure, MPа||0.5|
|Maximum fluid temperature, °С||150|
|Fluid injection into containment|
|maximum temperature, °С||150|
|maximum flow rate, t/h||1.5|
|maximum flow rate, nm3/h||500|
|Helium||total volume (in ramp), nm3||240|
|maximum flow rate, nm3/h||30|
The test facility containment models the containment of VVER-640 NPP and consists of a metal cylindrical shell 12 m in diameter with a hemispherical removable dome as a superstructure and a steel-faced reinforced concrete structure as a substructure.
The inner surface of the KMS containment is thermally insulated with basalt needle felt mats 70 mm in thickness, which ensures meeting the requirements for steam-gas fluid temperature and pressure inside the containment during experiments.