FIELD: nuclear physics.
SUBSTANCE: invention relates to nuclear reactors. Fast neutron nuclear reactor with heavy liquid metal heat carrier includes fuel assembly, cooled by upward heat carrier flow and units of side reflector, equipped with internal flow cavities. Outputs of heat carrier from cavities are located at same level as outputs of heat carrier from assemblies, inputs of heat carrier in cavity located above level of fuel assemblies, and assemblies are casings-free or with perforated casings.
EFFECT: increase of heat carrier flow rate through fuel assembly and reduction of input hydraulic losses.
1 cl, 1 dwg
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