R. Aminov, A. Egorov, V. Yurin
Thursday 11 October 2018 by Libadmin2018


Considered here is the problem of cooling water-cooled reactors in an emergency, including in emergency situations involving a blackout. This problem has become particularly important after the events that occurred at the Japanese nuclear power plant, “Fukushima-1.” Here we present a new emergency reactor-cooling system developed at the Department of Energy Problems at the Saratov Scientific Center, Russian Academy of Sciences. We propose a new way to provide redundant of auxiliary power for nuclear power plants through the addition of a low-power steam turbine generator and hydrogen energy complex. A system of active heat removal is proposed, which makes it possible to use the residual heat release of the reactor. The working fluid of this turbine is steam generated by the residual heat of the reactor during an emergency. During normal operation, this steam turbine generator is used to produce additional power and is used as a spinning reserve. This system reduces the intensity of damage to the reactor core as compared with a more expensive passive heat-removal system. Simultaneous cooling of several reactors within 72 hours may be provided by using the accumulated hydrogen and oxygen.

Keywords: water-cooled reactor, emergency reactor cooling, redundant auxiliary needs, probabilistic analysis, additional steam turbine generator

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