摘要:
A process for providing a fuel supplied to one or more combustors in a gas turbine engine system, comprising: reforming a fraction of the fuel in one or more fuel circuits of the gas turbine combustion system with a plasma reformer system to form at least one of hydrogen and higher order hydrocarbons to be supplied to the one or more combustors with a remaining fraction of the fuel; and controlling at least one of power and fuel flow to the plasma reformer system with an active feedback control system.
摘要:
A fiber gas sensor includes a fiber core with first and second refractive index periodic modulated grating structures having different amplitude modulation profiles positioned about the fiber core. A fiber cladding is positioned about the first and second refractive index periodic modulated grating structures. A sensing layer is positioned about the fiber cladding of one of the refractive index periodic modulated grating structures. The sensing layer includes a sensing material made of a Pd-based alloy, such as nano-PdOx, nano-Pd(x)Au(y)Ni(1-x-y) or nano-Pd/Au/WOx. The fiber gas sensor provides a measurement of localized, temperature-corrected gas concentration and composition from a combustion environment. A reflection-based or a transmission-based sensing system with an array of one or more fiber gas sensors is also described.
摘要翻译:纤维气体传感器包括具有第一和第二折射率周期性调制光栅结构的纤维芯,其具有围绕纤维芯定位的不同幅度调制轮廓。 围绕第一和第二折射率周期调制光栅结构定位光纤包层。 感测层围绕折射率周期调制光栅结构之一的光纤包层定位。 感测层包括由Pd基合金制成的感测材料,例如纳米PdO x,纳米Pd(x)Au(y)Ni(1-x-y)或纳米Pd / Au / WO x。 纤维气体传感器提供了来自燃烧环境的局部温度校正气体浓度和组成的测量。 还描述了具有一个或多个纤维气体传感器的阵列的基于反射或基于透射的传感系统。
摘要:
A fiber-optic dynamic sensing module comprises a support member, a beam extending from the support member, and a pre-strained fiber Bragg grating sensor and a strain-free fiber Bragg grating sensor mounted on the beam. The pre-strained and strain-free fiber Bragg grating sensors each comprise a Bragg grating inscribed in a fiber. The Bragg grating of the pre-strained fiber Bragg grating sensor is packaged more tightly along a longitudinal direction of the beam than the Bragg grating of the strain-free fiber Bragg grating sensor.
摘要:
A fiber-optic dynamic sensing module comprises a support member, a beam extending from the support member, and a pre-strained fiber Bragg grating sensor and a strain-free fiber Bragg grating sensor mounted on the beam. The pre-strained and strain-free fiber Bragg grating sensors each comprise a Bragg grating inscribed in a fiber. The Bragg grating of the pre-strained fiber Bragg grating sensor is packaged more tightly along a longitudinal direction of the beam than the Bragg grating of the strain-free fiber Bragg grating sensor.
摘要:
A system for controlling combustion dynamics is provided. The system includes a combustor having a combustion chamber and an inlet for feeding a fuel-air mixture into the combustion chamber. The system also includes a dome plate at an upstream end of the combustion chamber. The system further includes a liner along a length of the combustion chamber. The system also includes an actuator configured to control one or more recirculating zones in the combustion chamber.
摘要:
An atomizer, comprising a pre-filming region comprising a surface configured to reduce a mean drop size of a liquid to be atomized, wherein the surface has an effective contact angle, with reference to the liquid, of less than about 30 degrees; and a lip portion disposed at an end of the pre-filming region and configured to create hydrodynamic instabilities in a liquid film, wherein the lip portion comprises an alternating pattern of wetting and non-wetting surfaces, wherein the non-wetting surface comprises a contact angle, with reference to the liquid, of greater than 90 degrees, and the wetting surface comprises a contact angle, with reference to the liquid, of less than 90 degrees.
摘要:
A method of preventing thermal hydrocarbon degradation deposits on a surface of a gas turbine component, the method includes providing the turbine component comprising the surface configured for contacting a hydrocarbon fluid, wherein the substrate comprises a material having a nominal liquid wettability sufficient to generate, with reference to an oil, a nominal contact angle, disposing a plurality of features on the substrate to form an anti-deposition surface texture, wherein the plurality of features have a size, shape, and orientation selected such that the surface has an effective wettability sufficient to generate, with reference to an oil, an effective contact angle of greater than the nominal contact angle, and the features comprise a width dimension (a), and a spacing dimension (b), wherein the features prevent the hydrocarbon fluid from penetrating into the surface texture and thereby reduce the adhesion of the thermal hydrocarbon deposits to the surface.
摘要:
A method for controlling combustion dynamics is provided. The method includes providing a flow of partially premixed, premixed, or lean premixed fuel-air into a combustion chamber. The method also includes monitoring the combustion system for combustion dynamics. The method further includes actuating a system to control and abate combustion dynamics.
摘要:
A method of preventing thermal hydrocarbon degradation deposits on a surface of a gas turbine component, the method includes providing the turbine component comprising the surface configured for contacting a hydrocarbon fluid, wherein the substrate comprises a material having a nominal liquid wettability sufficient to generate, with reference to an oil, a nominal contact angle, disposing a plurality of features on the substrate to form an anti-deposition surface texture, wherein the plurality of features have a size, shape, and orientation selected such that the surface has an effective wettability sufficient to generate, with reference to an oil, an effective contact angle of greater than the nominal contact angle, and the features comprise a width dimension (a), and a spacing dimension (b), wherein the features prevent the hydrocarbon fluid from penetrating into the surface texture and thereby reduce the adhesion of the thermal hydrocarbon deposits to the surface.
摘要:
A natural gas reformer system is provided. The natural gas reformer system includes a natural gas inlet configured to receive a natural gas slipstream. The natural gas reformer system also includes an air inlet configured to introduce a slip stream of air. The natural gas reformer system further includes a preconditioning zone configured to pretreat the natural gas slipstream. The natural gas reformer system also includes a mixing zone configured to mix the natural gas slipstream and the air in a rich proportion. The natural gas reformer system further includes a reaction zone configured to combust the natural gas and air to generate a syngas. The natural gas reformer system also includes a quench zone configured to mix the natural gas back into the syngas.