General Electric Company

Nagorski, Arkadiusz Bartlomiej

Eric YuHang Fung

Chayan Mitra

Quoc Hoai Nguyen

Rachit Sharma

Eric Tracy Watson

Arkadiusz Bartlomiej Nagorski

Gordon Raymond Smith

Anish Bekal

Narendra Digamber Joshi

Vinayak Tilak

Sandip Maity

Leroy Omar Tomlinson

Charles Michael Jones

David Kelly Moyeda

Samhitha Palanganda Poonacha

Steven Keith Handelsman

Mark Joseph Steffen

Arun Kumar Sridharan

Bruce Charles Martindale

Paul Ronan Murphy

Gurbaksh Singh Ohson

Steven David Shemo

Marc Trent Kazanas

Gordon Smith

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

A method for determining a multi-dimensional profile of at least one emission parameter corresponding to an exhaust emission of a combustion process is presented. The method includes emitting a laser beam in a plurality of directions through the exhaust emission. The laser beam includes a plurality of wavelengths and the exhaust emission is characterized by the plurality of emission parameters. The method further includes detecting a plurality of absorption spectrum signals for each of the plurality of directions and determining a plurality of single-dimensional profiles corresponding to the at least one emission parameter. Each of the plurality of single-dimensional profiles is determined based on the plurality of absorption spectrum signals corresponding to each respective direction of the plurality of directions. The method also includes generating the multi-dimensional profile corresponding to the at least one emission parameter based on the plurality of single-dimensional profiles.

System and method for determining an exhaust emission parameter profile

A device includes a housing and a core configured to be secured within the housing. The core includes a microphone configured to detect a sound signal. The core also includes a control board configured to generate a noise-canceling sound signal based on the sound signal and a set of transfer functions. The core further includes a speaker configured to deliver the noise-canceling sound signal. The device also includes a fastener configured to connect the housing to an air filter of an intake vent of an enclosure of a power generation unit.

Active noise cancelation systems and devices

A system includes an Active Noise Control (ANC) module unit configured to be installed within an air intake or exhaust of a power generation unit. The ANC module unit includes an ANC housing shaped to fit within the air intake or exhaust, an ANC core configured to be secured within the ANC housing, which includes a microphone configured to detect a sound generated by the power generation unit, a control board configured to control the noise-canceling sound based on the sound signal from the microphone and a set of pre-determined noise reduction transfer functions, and a first speaker configured to deliver a first noise-canceling sound to the air intake or exhaust.

Active noise control system

A gas detector and method are presented. The gas detector includes a launcher unit for coupling and merging light beams in mid-infrared and infrared wavelength ranges into a single light beam and directing the merged single light beam towards a gas flow path; a receiver unit for generating at least one photo detector current signal based on the light beam transmitted through the gas flow path; and a control unit for processing at least one photo detector current signal to measure concentration of the at least two gases present in the gas flow path.

Methods and apparatus for fast starting and loading a combined cycle power system are described. In one example embodiment, the method includes loading the gas turbine at up to it's maximum rate, and loading the steam turbine at its maximum rate with excess steam bypassed to the condenser while maintaining the temperature of steam supplied to the steam turbine at a substantially constant temperature from initial steam admission into the steam turbine until all steam generated by the heat recovery steam generator is being admitted to the steam turbine while the gas turbine operates at up to maximum load.

Methods and apparatus for starting up combined cycle power systems

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Houston, TX, United States of America

Eric YuHang Fung