Abstract: The hot air exchanger in the steam generator is connected to the outlet of the air compressor and the inlet of the hot air turbine for driving the compressor. A presuperheater in the waste air boiler receives steam from the water-steam separator which, in turn, delivers the steam to the steam turbine for an electricity generator. An air preheater is disposed to preheat the incoming combustion air by means of the flue gases from the steam generator. A branch line from the exhaust air boiler may also use the waste air for preheating the incoming combustion air.

Abstract: The pressure vessel of the gas turbine-steam power plant is provided with a recuperator and a heat exchanger in order to reduce the temperature of the hot flue gas before separating out gas-entrained particles. The dust separator is connected to the recuperator on a secondary side so that the hot gas can be reheated for delivery to the gas turbine. By cooling the flue gas before entering the separator, use can be made of electrostatic dust filters or cloth filters.

Abstract: The waste heat steam generator employs two parallel channels for receiving flows of exhaust gas from a gas turbine. In one channel, the exhaust gas flow is heated by a supplemental burner to a temperature less than 900.degree. C while the flow of exhaust gas in the second channel is heated to a temperature above 900.degree. C. The amount of fuel supplied to each burner is controlled by various control means responsive to the temperature within the steam generator or the temperature of the live steam or by the pressure of the live steam. A distribution means is provided at the entrance to the channel in which the exhaust gas is heated to a temperature above 900.degree. C so as to control the flow therein. The steam generator can be easily adapted to partial load operation by regulating the amount of fuel to the supplemental burners.

Abstract: The plant has a combustion chamber which is connected to a thermal preparation plant for fuel in order to receive prepared fuel. The thermal preparation plant has a heat exchanger for condensing heavy sulphur-containing fractions of heavy oil. This heat exchanger is connected in parallel with the evaporator of the steam generator to receive the working medium for the production of steam at the same steam pressure as in the evaporator. A second fuel supply is connected to the combustion chamber to supply fuel when the preparation plant is shut down. A burner is also connected to the steam generator to heat the various heating surfaces for producing steam when the preparation plant is shut down.

Abstract: A substantial part of the superheating surface is shifted out of the pressure vessel and into the flow of exhaust gases from the gas turbine in order to reduce the size of the pressure vessel. The superheating surface outside the pressure vessel is located in the same housing as the feedwater preheating surfaces and can be bypassed by a suitable by-pass line. A supplementary burner can also be positioned in the gas turbine exhaust flow upstream of the displaced superheating surface.