Abstract:
An acoustically dampened gas turbine engine (10) having a gas turbine engine combustor (12) with an acoustic damping resonator system (14) is disclosed. The acoustic damping resonator system (14) may be formed from one or more resonators (16) positioned within the gas turbine engine combustor (12) at an outer housing (18) forming a combustor basket (22) and extending circumferentially within the combustor (12). The resonator (16) may be positioned in a head region (20) of the combustor basket (22). In one embodiment, the resonator (16) may be positioned in close proximity to an intersection (24) between the outer housing (18) and an upstream wall (26) defining at least a portion of the combustor (12). The acoustic damping resonator system (14) may mitigate longitudinal mode dynamics thereby increasing an engine operating envelope and decreasing emissions
Abstract:
The present invention relates to a combustion system of a flow engine comprising at least one combustion chamber, a shared manifold (18) to feed a flow medium via at least two injectors to the at least one combustion chamber and at least one resonator (20) with at least one resonator cavity (22), wherein the at least one resonator (20) is arranged functionally in/at the manifold (18). To obtain good combustion performance with a homogenous fuel flow rate and high combustion stability, it is provided that the resonator (20) comprises at least one perforated section (24) with at least two orifices (26), wherein the at least two orifices (26) provide access to the at least one resonator cavity (22) of the at least one resonator (20).
Abstract:
Dämpfungsvorrichtung für eine Gasturbine, Gasturbine und Verfahren zur Dämpfung thermoakustischer Schwingungen Die Erfindung betrifft eine Dämpfungsvorrichtung (50) für eine Gasturbine mit • - mindestens einem Helmholtz-Resonator (23) und • - mindestens einem Kanal (53), • - wobei der Helmholtz-Resonator ein Resonator-Gehäuse (27) und mindestens eine Resonatorhals-Röhre (28) aufweist und das Resonator-Gehäuse (27) ein Resonanzvolumen (30) des Helmholtz- Resonators (23) umschließt, in welches mittels der Resonatorhals- Röhre (28) akustische Schwingungen einkoppelbar sind. Die erfindungsgemäße Dämpfungsvorrichtung ermöglicht eine besonders effektive Dämpfung von thermoakustischen Schwingungen. Hierzu ist der Kanal (53) mit einer Kanalummantelung und mindestens einer Austrittsöffnung (52) ausgebildet. In die Austrittsöffnung sind akustische Schwingungen eines ein Brennerplenum und eine Brennkammer durchströmenden Fluidstroms einkoppelbar. Der Kanal ist mit einem Kühlfluid beaufschlagbar und die mindestens eine Resonatorhals-Röhre mündet heißgasseitig stromauf der mindestens einen Austrittsöffnung in einen derartigen Kanal ein.
Abstract:
The invention refers to a sequential combustor arrangement (104) comprising a first burner (112), a first combustion chamber (101), a mixer (117) for admixing a dilution gas to the hot gases leaving the first combustion chamber (101) during operation, a second burner (113), and a second combustion chamber (102) arranged sequentially in a fluid flow connection. The mixer (117) comprises a plurality of injection pipes (114, 115) pointing inwards from the side walls (116) of the mixer (117) for admixing the dilution gas to cool the hot flue gases leaving the first combustion chamber (101) with a low pressure drop. The disclosure further refers to a method for operating a gas turbine (100) with such a combustor arrangement (104).
Abstract:
The damper arrangement (20) comprises a plurality of interconnected volumes (V1 and V2) and a plurality of necks (N1 and N2) for connecting the damper (20) to a combustion chamber (5) at a plurality of contact points. The plurality of necks being connected to the plurality of volumes.
Abstract:
A combustor (100) for a gas turbine engine (30) has a circumferentially extending liner (109) defining at least a portion of an interior combustion chamber (107) and a hot gas path (115). The liner includes a resonator section (112) including at least one resonator (116A, 116B) having a resonator chamber (125A, 125B) formed on an exterior of the liner. A thermal barrier coating (118) is disposed along an inner surface of the liner including an inner surface (130) of the resonator section. The resonator further includes a plurality of apertures (117) and each aperture extends through the liner and the thermal barrier coating at the resonator section and there is fluid flow communication between the combustion chamber and the resonator chamber.
Abstract:
본 발명은 송풍기로부터 버너 측으로 공급되는 공기와 연소용 가스의 혼합유체의 유동중 발생하는 연소실 내부의 소음을 공명작용을 이용하여 효과적으로 감쇄시킴으로써 보일러 또는 온수기 등의 연소기기의 조용한 운전을 가능하게 하는 공명실을 구비한 연소기기를 제공함에 그 목적이 있다. 이를 구현하기 위한 본 발명은, 송풍기로부터 공급된 공기와 연소용 가스의 혼합유체를 연소시키는 버너와, 상기 버너의 연소가 이루어지는 연소실을 포함하는 연소기기에 있어서, 상기 송풍기와 버너 사이의 유로 상에는 공명실이 구비된 것을 특징으로 한다.
Abstract:
One embodiment of the present invention is a unique gas turbine engine combustion finer. Another embodiment is a unique gas turbine engine. Other embodiments include apparatuses, systems, devices,, hardware, methods, and combinations for gas turbine engines and gas turbine engine combustion liners. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.
Abstract:
Heat exchangers can be utilised in thermo-acoustic engines to facilitate through acoustic oscillations electrical power generation via linear alternators and/or cooling effects. Provision of a heat exchanger arrangement (31) which can be associated with a traditional open flame stove utilised in third world countries would be advantageous. However, such heat exchanger arrangements must be lightweight and robust to withstand operational use. By creating a heat exchanger arrangement formed from plates having apertures which develop a folded conduit to act as a resonance tube of appropriate length it is possible to more easily accommodate thermo-acoustic electrical power generation and cooling effects in a traditional stove configuration.