FIELD: power systems. SUBSTANCE: coolant is heated in outlet heat-transfer apparatus by introducing air in the latter from low-pressure compressor whereupon cool and compressed air is conveyed to gas-turbine high- pressure compressor and to inlet of turboexpander; part of coolant heated in foam-type heat-transfer apparatus is passed to evaporating and mixing device. Low-pressure compressor communicates through its outlet with outlet heat-transfer apparatus and the latter is connected to high-pressure compressor and to turboexpander; evaporating and mixing device is connected at its inlet to pump outlet. EFFECT: enhanced efficiency of plant. 2 cl, 1 dwg
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