General Electric Company

Arun Kumar Sridharan

Sameer Dinkar Vartak

Moorthi Subramaniyan

Chayan Mitra

Rachit Sharma

David Kelly Moyeda

Eric YuHang Fung

Adnan Fareed Zafar

Anish Bekal

Kamesh Lakshmi Narayanan

Dragisa Ristic

Ankur Maheshwari

Jose Apolonio Burciaga-Santos

Combustion turbine control systems are configured to operate combustion turbine systems in partial or no load while meeting emission targets. The combustion turbine system includes a combustion turbine, an electrical generator, a combustion turbine controller, a catalyst assembly, and/or other relevant equipment. Based on given operating constraints, such as load conditions and emission regulations, the combustion turbine controller may execute corresponding actions to control certain gas concentrations and/or gas mass flows in the exhaust gases in compliance with emission regulations. The corresponding actions may include, but are not limited to: controlling fuel and/or diluent injection(s) to combustor(s) to control combustion (e.g., combustion temperature) to manage combustion gas contents exiting from the combustor, controlling compressor bleed valve(s) to control the combustion temperature, controlling the catalyst assembly to process exhaust gases to be released into the environment, or a combination thereof.

System and methods for improving combustion turbine turndown capability

A system and method of igniting a coal air-fuel mixture, including a burner having a burner tube operable to carry a flowing mixture of fuel and air to a furnace for combustion therein and a first flow directing device disposed within the tube, operable to direct a first portion of the flowing fuel and air mixture to a location in the burner tube. The system also includes a laser igniter within the burner tube, the laser igniter including a laser tube having a first end with a laser light input and a second end with a light output, and a laser light source operably coupled to the laser light input. The laser light source, including a laser. The laser ignitor directing photons from the light output at the location in the burner tube to ignite at least a part of the first portion of the fuel.

System and method for laser ignition of fuel in a coal-fired burner

One or more light sources emit light within first, second, and third wavelength ranges through exhaust gas. The first and second wavelength ranges are characterized by first and second different absorption wavelength ranges of a background gas. The third wavelength range is characterized by an absorption wavelength range of a gas-of-interest. At least some of the light within the first, second, and third wavelength ranges is absorbed by the exhaust gas thereby providing modified light characterized by the first, second, and third absorption wavelength ranges. One or more detectors receive the modified light. A processing subsystem determines a temperature of the exhaust gas based on the modified light characterized by the first and second absorption wavelength ranges and a concentration of the gas-of-interest based on the modified light characterized by the third absorption wavelength range and the temperature of the exhaust gas.

Gas detector and method of detection

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Bengaluru, India

Arun Kumar Sridharan