INVESTIGATION OF PROCESSES IN LEAD COOLANT WITH LOSS-OF-INTEGRITY OF A HEAT-EXCHANGE TUBE IN A BREST-OD-300 STEAM GENERATOR

摘要

The results of an experimental investigation by means of pulse radiography of the outflow of a steam-water mixture below the level of lead melt are presented. The x-ray diffraction patterns of bubble and jet efflux of the steam-water mixture, x-ray photographs of the steam cavity appearing in the lead coolant under the action of a shock wave arising with the spontaneous collapse of the heat-exchange tube of the steam generator in the BREST-OD-300 reactor with stress concentrators are presented. A qualitative analysis of the experiments is given.