FIELD: fire-fighting equipment for extinguishing forest fires, gas-oil fires, fires in buildings, book depositories, museums. SUBSTANCE: gas-turbine plant includes the following units located in series in first duct: air inlet section, combustion chamber, vacuum unit, gas generator, additional heat exchanger, turbine of drive of second duct cooling fan; turbine is made in form of gas-expansion machine. Gas generator includes compressor for compression of working medium, combustion chamber and compressor drive turbine. Vacuum unit consists of overexpansion turbine, heat exchanger for removal of heat to second duct and final-stage compressor driven by overexpansion turbine. EFFECT: enhanced efficiency. 1 dwg
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