Localization of Radioactive Steam after the Safety Valves in a Water-Moderated and -Cooled Reactor

The radiation and explosion safety of water-moderated and -cooled reactors in regimes with steam discharged through safety valves is described. It shown for the VK-50 boiling-water reactor that diverting the steam after the safety valves to outside the protective shell minimizes the consequences of emergencies during planned hydrogen discharges into the atmosphere and guarantees localization of the radionuclides.