A passive system for introducing an absorbing material into the core without any mechanical motions is incorporated in the BR-1200 lead-cooled fast reactor. The structural arrangement of the setup and the results of calculations of transient regimes in the BR-1200 reactor are described. A system with such setups included in the core will make it possible to lower the maximum fuel, fuel-element cladding, and coolant temperatures below the design limits, including in the event of accidents with multiple failures, and to completely suppress a fission chain reaction if the efficiency of the system is high enough.
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Translated from Atomnaya Énergiya, Vol. 122, No. 1, pp. 10–14, January, 2017.
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Leonov, V.N., Rodina, E.A., Chernetsov, N.G. et al. Passive Negative-Reactivity Injector for a Lead-Cooled Fast Reactor. At Energy 122, 9–14 (2017). https://doi.org/10.1007/s10512-017-0228-x
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DOI: https://doi.org/10.1007/s10512-017-0228-x