Abstract:
A telemetry system for use in a combustion turbine engine (10) that includes a first sensor (306) in connection with a turbine blade (301) or vane (22). A first telemetry transmitter circuit (312) is affixed to the turbine blade and routes electronic data signals, indicative of a condition of the blade, from the sensor to a rotating data antenna (314) that is affixed to the turbine blade or is on a same substrate as that of the circuit. A stationary data antenna (333) may be affixed to a stationary component (323) proximate and in spaced relation to the rotating data antenna for receiving electronic data signals from the rotating data antenna. A second sensor (335) transmits electronic data signals indicative of the stationary component to a second telemetry circuit (332), which routes the signals to the stationary antenna. The stationary antenna transmits the electronic data signals to a receiver (338).
Abstract:
An instrumented component (18, 19) for use in various operating environments such as within a combustion turbine engine (10). The component (18, 19) may have a substrate, a sensor (50, 94, 134) connected with the substrate for sensing a condition of the component (18, 19) during operation of the combustion turbine (10) and a connector (52, 92, 140) attached to the substrate and in communication with the sensor (50, 94, 134) for routing a data signal from the sensor (50, 94, 134) to a termination location (53). The component (18, 19) may include a wireless telemetry device (54, 76, 96) in communication with the connector (52, 92, 140) for wirelessly transmitting the data signal. Recesses (114, 116) may be formed with a root portion (112, 132) of components (18, 19) within which wireless telemetry device (54, 76, 96) may be affixed.
Abstract:
A combustion catalyst coating (36) applied to the surface of a ceramic thermal barrier coating (34) which is supported by a metal substrate (32). The microstructure of the thermal barrier coating surface provides the necessary turbulent flow and surface area for interaction of the catalyst and a fuel-air mixture in a catalytic combustor of a gas turbine engine. The temperature gradient developed across the thermal barrier coating protects the underlying metal substrate from a high temperature combustion process occurring at the catalyst surface. The thermal barrier coating deposition process may be controlled to form a microstructure having at least one feature suitable to interdict a flow of fuel-air mixture and cause the flow to become more turbulent than if such feature did not exist.
Abstract:
In addition to good thermal barrier properties, thermal barrier coating systems also have to have a long thermal barrier coating service life. The coating system according to the invention comprises a specially adapted layer sequence made up of metallic bonding layer, which consists of an NiCoCrAlX, inner ceramic layer and outer ceramic layer, at least 80% of which is made up of the pyrochlore phase Gd2Zr2O7 or Gd2Hf2O7.
Abstract translation:除了良好的隔热性能外,热障涂层系统还必须具有长的隔热涂层使用寿命。 根据本发明的涂层系统包括由金属结合层构成的特殊适应的层序列,其由NiCoCrAlX,内陶瓷层和外陶瓷层组成,其中至少80%由烧绿石相Gd 2 Zr 2 O 7或Gd 2 Hf 2 O 7 。
Abstract:
A component for use in a combustion turbine (10) is provided that includes a substrate (212) and a microelectromechanical system (MEMS) device (50, 250) affixed to the substrate (212). At least one connector (52) may be deposited in electrical communication with the MEMS device (50, 250) for routing a data signal from the MEMS device (50, 250) to a termination location (59). A barrier coating (216) may be deposited on the substrate (212) wherein the MEMS device (50, 250) is affixed beneath a surface of the barrier coating (216). A plurality of trenches (142) may be formed in the barrier coating (216) at respective different depths below the surface of the barrier coating (216) and a MEMS device (50, 250) deposited within each of the plurality of trenches (142). A monitoring system (30) is provided that may include a processing module (34) programmed for receiving data from the MEMS device (50, 250).
Abstract:
A method of instrumenting a first component (210) for use in a combustion turbine engine (10) wherein the first component (210) has a surface contacted by a second component during operation of the combustion turbine engine (10). The method may include depositing an insulating layer (260) on the surface of the first component (210) and depositing a first conductive lead (232, 254) on the insulating layer (260). A piezoelectric material (230) may be deposited in electrical communication with the first conductive lead (232, 254) and a second conductive lead (236, 256) may be deposited in electrical communication with the piezoelectric material (230) and be insulated from the first conductive lead (232, 254) to form a sensor (50) for detecting pressure exerted on the surface of the first component (210) during operation of the combustion turbine engine (10).
Abstract:
A peer-to-peer network propagates searches from client to client. Resources within each client are selectively searched in response to authentication and authorization processes. Authentication information may be included in a search request or may be performed by an authentication process external to the client. Authorization is performed by a process external to the client. Only after authentication or authorization may resources of any particular client be accessed. The system allows for secure propagated searches and resource access in a peer-to-peer network environment. The network may further include a server for maintaining a list of clients connected to the peer-to-peer network in order to more efficiently facilitate peer-to-peer communications.
Abstract:
There is described a ceramic powder, ceramic layer and layer system having gadolinium/mixed crystal pyrochlore phases and oxides. Besides a good thermal insulation property, thermal insulation layer systems must also have a long lifetime of the thermal insulation layer. The layer system according to the invention has an outer ceramic layer, which comprises a mixed crystal of gadolinium zirconate and gadolinium hafnate.
Abstract:
A thermal barrier coating (TBC) system (450) capable of self-healing has a substrate (420), a metal-based advanced bond coat (435) overlying the substrate and a ceramic top coat (440) overlying the bond coat. The bond coat (435) comprises ceramic oxide precursor materials capable of forming a non-alumina ceramic oxide composition when exposed to a thermally conditioning oxidizing environment. Embodiments of such bond coat (435) comprise rare earth elements in a range of 1-20 weight percent, and Hf in a range of about 5 to 30 weight percent or Zr in a range of about 2 to 20 weight percent. Examples of self-healing TBC systems (400, 402, 404) are provided using such bond coat (435) or its advanced bond coat chemistries in combination with conventional bond coats (433, 437) or conventional bond coat chemistries.
Abstract:
An electrical assembly for use in various operating environments such as a casing of a combustion turbine 10 is provided. The assembly may include an electrical energy-harvesting device 51 disposed in a component within the casing of the turbine to convert a form of energy present within the casing to electrical energy. The harvesting device is configured to generate sufficient electrical power for powering one or more electrical devices therein without assistance from an external power source. One example of electrical devices wholly powered by the energy harvesting device may be a sensor 50 connected for sensing a condition of the component within the casing during operation of the combustion turbine. Another example of electrical devices wholly powered by the energy harvesting device may be a transmitter in communication with the sensor for wirelessly transmitting the data signal outside the casing.