Abstract: A hollow-cylindrical heat shield includes at least one graphite foil and at least one fiber structure, preferably a wound fiber structure, disposed on the outer side of the at least one graphite foil. The (wound) fiber structure has a degree of coverage of less than 100%. A high-temperature furnace or gas converter having a heat shield is also provided.

Abstract: A component made of a fiber composite material contains at least three wound layers made of a fiber material that are arranged one over the other. Each of the wound layers contains one or more windings. For each wound layer containing more than one winding, all windings of the wound layer have the same winding angle and are separated from each other in some sections, whereby intermediate spaces are formed between the windings. All windings of at least two of the wound layers have the same first winding angle. All of the windings of one wound layer, which is arranged between the two wound layers having the windings with a same first winding angle, have a second winding angle. The magnitudes of the first and second winding angles differ, and the windings having the second winding angle intersect with the windings having the first winding angle.

Abstract: A power plant installation includes a feed connection for feeding energy into an external energy supply grid and at least one energy-generating unit. The power plant installation includes at least one energy storage unit and at least one isolated component grid which is connected to the feed connection via a converter of the power plant installation and is electrically isolated from the feed connection and the external energy supply grid by the converter, the at least one energy-generating unit and/or the at least one energy storage unit are connected to the isolated component network, and the powerplant installation has a control device which, by actuating the converter, the energy-generating unit and/or the energy storage unit, adjusts the feed behaviour of the power plant installation which is effective towards the outside at the feed connection.

Abstract: A layered composite material component has two or more layers of graphite foil. The layers of graphite foil are connected together by way of at least one connecting pin that engages in both layers in a form-fitting manner.

Abstract: A hollow-cylindrical heat shield includes at least one graphite foil and at least one fiber structure, preferably a wound fiber structure, disposed on the outer side of the at least one graphite foil. The (wound) fiber structure has a degree of coverage of less than 100%. A high-temperature furnace or gas converter having a heat shield is also provided.

Abstract: A component made of a fiber composite material contains at least three wound layers made of a fiber material that are arranged one over the other. Each of the wound layers contains one or more windings. For each wound layer containing more than one winding, all windings of the wound layer have the same winding angle and are separated from each other in some sections, whereby intermediate spaces are formed between the windings. All windings of at least two of the wound layers have the same first winding angle. All of the windings of one wound layer, which is arranged between the two wound layers having the windings with a same first winding angle, have a second winding angle. The magnitudes of the first and second winding angles differ, and the windings having the second winding angle intersect with the windings having the first winding angle.

Abstract: A plant suitable, in particular, for denitrifying sewage purification by the activated sludge process comprises several tanks which are charged with untreated water via a common delivery conduit which is preferably designed as a ring main. This delivery conduit, which is arranged above the maximum water level in the tanks, has an essentially horizontal course and serves as storage space for the sewage feed to the individual tanks via rapid-closing and -opening gate valves for spontaneous or gravitational emptying into the particular tank. The delivery conduit is preferably designed as a closed double channel with a lower discharge conduit, which is located below the minimum water level in the tanks, for discharging the sludge/water mixture to the final clarification tank. It is expedient to include an operation bridge or walkway with the delivery conduit.