Abstract: A combustion system with a burner and a membrane unit including a retentate side and permeate side for separating oxygen from air is provided. The permeate side of the membrane unit is connected to the burner via a line. A heat exchanger is connected in a combustion gas flow such that a hot combustion gas arising from fossil combustion is applied to the primary side of the heat exchanger and air applied to the secondary side of the heat exchanger is heated to a temperature required for operating the membrane unit and fed to the membrane unit. Further, a method for operating the combustion system is provided.

Abstract: A method in which an air mass flow supplied to a compressor in a power plant is divided in a flow divider into a small partial flow and into a larger partial flow. The smaller partial flow is supplied to an ejector via an air cooler and a booster. The larger partial flow is supplied to the suction line of said ejector. Both partial flows are combined in the ejector. The mass flow which is combined at the outlet of the ejector can be used as pressurized air in various components of a power plant.

Abstract: An assembly includes a gas turbine with an inlet, a combustion air compressor with an outlet, a combustion chamber, and a common wall between the outlet of the compressor and the inlet of the turbine. A gas valve has a transverse bulkhead serving as a transverse separating wall on at least one side of the common wall, and a slide covering the transverse bulkhead and the common wall in the vicinity of the compressor. The slide has slots formed therein for alternatingly closing corresponding slots formed in the common wall and in the transverse bulkhead.