Abstract: A flue-gas duct of a gas and steam-turbine plant is constructed in such a way that reliable sound absorption is ensured with especially simple provisions, even when using internally insulated duct pieces, in particular an internally insulated waste-heat boiler. The flue-gas duct includes a duct piece having a number of sound-absorber gates. At least one sound-absorber gate has a displacement nose disposed upstream thereof on the flue-gas side. A gas-switch module having a displaceable shut-off damper is disposed downstream of the duct piece which is constructed as a sound-absorber module, on the flue-gas side. The shut-off damper includes first and second substantially mutually perpendicularly oriented shut-off plates.

Abstract: A high degree efficiency in a gas turbine is assured by imposing a rifling swirl on the operating medium. The gas turbine has a turbine shaft and a number of burners that discharge into a combustion chamber configuration. The primary burner axis of each burner is tilted relative to the primary axis of the turbine shaft such that a defined swirl is created in the operating medium. An especially effective transfer of momentum from the flowing operating medium AM to a rotor blade configuration, particularly in full-load operation of the gas turbine, is thus attained without additional structural parts between the combustion chamber configuration and the rotor blade configuration.

Abstract: A steam generator configuration, in particular of a low temperature carbonization-combustion plant, includes a supporting structure. A flue gas channel is disposed in the supporting structure and has a first vertical segment, a second at least approximately horizontal segment, and a third vertical segment being connected through the second segment to the first segment to form a structural unit. Supporting members suspend the first segment in the supporting structure in order to avoid restrictions to expansion and deformation of the flue gas channel as a result of thermal expansion. The supporting members are in an oblique or slanted position relative to the vertical in a cold condition. The oblique position essentially corresponds to a thermal expansion of the second horizontal segment in a hot condition. The supporting elements are parallel to the vertical in the hot condition.

Abstract: A conduit assembly, in particular for connecting a flue gas inlet of a gas turbine to a flue gas conduit discharging into a waste heat boiler, includes an outwardly insulated first conduit segment having a supporting inner casing, and an inwardly insulated second conduit segment having a supporting outer casing being radially outwardly offset from the supporting inner casing of the first conduit segment. The supporting casings each have a flange-like structure and are form-lockingly joined together in a connection region between the conduit segments. A connecting element for the conduit segments includes a shaped element surrounding the first conduit segment and being firmly joined to the supporting outer casing of the second conduit segment. The shaped element has a number of radially extending ribs with free ends being form-lockingly joined to the supporting inner casing of the first conduit segment.

Abstract: A nuclear pressurized-water reactor installation includes a reactor pressure vessel, a concrete biological shield surrounding the vessel and a cylindrical pressurized coolant pipe extending from the vessel. The wall forms a hole of substantially larger diameter than the diameter of the coolant pipe and through which this pipe is extended with a cylindrical space therearound, and the wall forms at least one air space between the vessel and the wall and which is spanned by the pipe. If the pipe within the hole fails, its pressurized-water coolant which then escapes can flow through the cylindrical space into the air space and down and under the vessel to exert an upward force on the vessel. To prevent this, a cylindrical containment encircles the pipe in the hole and extends to the vessel with which the containment fluid-tightly seals, thus preventing coolant escaping from the pipe from having access to the air space around and beneath the bottom of the pressure vessel.