Two possible physical concepts of cosmic nuclear power plants are considered. One of them is a fast nuclear reactor cooled by Na-K-Cs alloy. The fuel, coolant, and reactor reflector contain long-lived radioactive waste from nuclear power (including minor actinides and fission products. The values of the maximum temperature of the core components in anticipated transients without scram (ATWS) are given. The second concept is a hybrid of a “nuclear battery” and a nuclear reactor. It is proposed to use super-heavy elements as a fuel (flerovium-298), lead and gallium are most preferable as a coolant. The estimated values of the critical parameters of such a reactor are given. The reactor is characterized by a good neutron balance. Both concepts are designed for use on space stations and (or) as stationary installations on the terrestrial planets (with a solid surface). The implementation of the first concept is possible in the framework of existing technologies. The second concept can only be implemented in the far future. Its implementation will be possible when producing a significant amount of long-lived super-heavy elements and will require the development of new technologies.


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    Title :

    Nuclear power in space: Look into the future



    Conference:

    XLIII ACADEMIC SPACE CONFERENCE: dedicated to the memory of academician S.P. Korolev and other outstanding Russian scientists – Pioneers of space exploration ; 2019 ; Moscow, Russia


    Published in:

    Publication date :

    2019-11-15


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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