Abstract:
L'invention concerne une tuyère d'échappement de gaz de turbomoteur, comprenant une paroi extérieure et une paroi intérieure délimitant entre elles une veine d'écoulement des gaz d'échappement; la paroi intérieure formant un corps central tronconique orienté dans une direction longitudinale La tuyère est caractérisée en ce que le corps (32) central comprend des moyens (44) de guidage des gaz d'échappement le long de la direction longitudinale sur au moins une partie de la longueur du corps (32) centrai dans le sens de l'écoulement des gaz.
Abstract:
A compressed-air energy-storage system (1) is described. The system comprises: a first compressor arrangement (3) for compressing an air stream; a thermal energy storage unit (13), where through compressed air from the first compressor arrangement (3) exchanges heat against a heat accumulation means; an air storage device (17) arranged and configured for receiving and accumulating compressed air from the thermal energy storage unit (13); at least one expander (21) for receiving compressed air from the air storage device (17) and producing useful power therefrom. A further compressor arrangement (15) is located between the thermal energy storage unit (13) and the air storage device (17).
Abstract:
Es wird eine Vorrichtung und ein Verfahren zur Abtrennung von Schmutzpartikeln aus dem Arbeitsmedium einer Turbine (10) vorgeschlagen. Die Turbine (10) weist mindestens einen Rotor (11) auf, welcher in einem Gehäuse (17) angeordnet ist. Es ist ein Drallerzeuger (20) vorgesehen, welcher das Arbeitsmedium und die Schmutzpartikel durch die Geometrie des Drallerzeugers (20) in eine spiralförmige Drehbewegung entlang einer Hauptachse (22) versetzt und dabei die Schmutzpartikel vom Arbeitsmedium trennt. Der Drallerzeuger (20) ist so gestaltet, dass das Arbeitsmedium innerhalb des Drallerzeugers (20) eine Umkehrung der Geschwindigkeitskomponente parallel zur Hauptachse (22) erfährt.
Abstract:
An oil cooling system and method are provided for use with respect to a lubricated mechanical system within a bypass configured gas turbine engine. A surface cooler is fluidly linked to the lubricated mechanical system to receive oil from the lubricated mechanical system for cooling and reuse. In an embodiment, the surface cooler is mounted on an existing surface within the bypass airflow path of the bypass configured gas turbine engine to provide effective cooling while avoiding the introduction of additional aerodynamic disturbances in the bypass path. In an embodiment, the surface cooler is mounted on the fan casing or on a fan exit guide vane.
Abstract:
A motion controller for a floating wind turbine with a plurality of rotor blades, is arranged to control a motion of the floating wind turbine in a yaw direction. The controller adjusts the blade pitch of each rotor blade so as to create a net force to control the motions. The controller includes a control action which is proportional to a yaw offset angle and/or a control action which is proportional to an integral of the yaw offset angle.
Abstract:
A closed-cycle gas turbine power generator system with a combined cycle system with a neutral gaseous primary motive medium and a secondary phase change medium with a lower pressure sub-system having a counter-rotating compressor module in combination with a counter-rotating gas turbine module, and with a higher pressure sub-system having a counter-rotating compressor module and a counter-rotating gas turbine module wherein the phase change medium in liquid form is injected into the compressor modules during compression of the primary motive medium with the phase change medium changing to a gas to form a compressed gaseous mixture that is heated by the heat source and supplied to the gas turbine module of the higher pressure sub-system for partial expansion and combining with a heated portion of the compressed gaseous mixture from the compressor module for final expansion in the lower pressure gas turbine modules.
Abstract:
A method for meeting both base-load and peak-load demand in a power production facility. By integrating a Fischer-Tropsch (FT) hydrocarbon production facility with an electrical power generating facility, peak-load power demand can be met by reducing the temperature of the FT reactor thereby increasing the quantity of tail gases and using FT tail gases to fuel a gas turbine generator set. The method enables rapid power response and allows the synthesis gas generating units and the FT units to operate with constant flow rates.
Abstract:
A reduced carbon dioxide emissions system and method for providing power for refrigerant compression and shared electrical power for a light hydrocarbon gas liquefaction process.
Abstract:
A nuclear power plant makes use of a high temperature gas cooled reactor. Under certain circumstances, the possibility exists that the temperature of gas entering various components of the plant exceeds desired operating parameters. To prevent this, the temperature of the gas entering at least one of the components of the power plant is monitored and, should the temperature of the gas exceed a predetermined temperature, cooler gas is mixed with the gas whose temperature had exceeded the predetermined temperature, to reduce the temperature of the gas. Accordingly, the plant includes at least one coolant feedline leading from a source of coolant gas, typically at a point in the power generation circuit where the temperature of the gas is relatively low, to a position upstream of the component. A coolant valve is mounted in the coolant feedline to regulate the flow of coolant gas therethrough.