FIELD: power supplies with limited discharge of thermodynamic-cycle nonconverter heat into surrounding atmosphere. SUBSTANCE: power plant has heat energy source, that is, nuclear reactor, and heat-to-electricity conversion system, that is, thermionic conversion reactor with thermionic energy converters built in reactor core; thermodynamic- cycle nonconverter heat discharge system is made in the form of liquid- metal circulating loop carrying eutectic sodium/potassium or lithium alloy as working medium and electromagnetic pump is used to handle liquid-metal coolant. EFFECT: improved design. 5 cl, 3 dwg
