SYSTEM FOR HEATING ROOM WITH COMPRESSED HEATED GAS Russian patent published in 1996 - IPC

FIELD: heat engineering. SUBSTANCE: closed loop of air ducts has power plant and heaters arranged inside a room. The power plant is air compressing units connected in series. The air ducts are incorporated in the closed loop. The first power plant in the direction of the flow can operate from an independent power source and due to supplying to it a portion of exhaust compressed air. Each subsequent plant is energized from previous one and is operated by compressed air that rotates the hollow shaft of the plant through levers with jet nozzles. The levers are different in length and diameter. Each plant has a compressor kinematically connected with the hollow shaft and receiver. The hollow shaft is connected with an electric generator coupled with an electric heater positioned inside an air duct. The air heater is in communication with the air duct downstream of the power plants. EFFECT: enhanced efficiency. 3 cl, 1 dwg