General Electric Technology Gmbh

Ansaldo Energia Switzerland Ag

John Thomas Cutright

Sumit Soni

Peter Stuttaford

Khalid Oumejjoud

Nicolas Demougeot

Brian K Richardson

Nikki McMullen

Richard Parker

Methods and systems for determining that a sensor, such as a pressure sensor, that provides feedback on one or more conditions of a gas turbine is deficient are provided. The amplitude of measurements from the sensor may be monitored in different frequency ranges in order to detect certain abnormal conditions of the gas turbine that require attention by the control system in one frequency range, and also, concurrently and/or separately, detect a sensor deficiency in another frequency range prior to actual failure of the sensor, at which time the failure may otherwise be noticeable in the first frequency range. This permits better detection of deficient sensors during operation of the gas turbine.

Detection of deficient sensors in a gas turbine system

A system and method for improving the cooling to a portion of a combustion liner of a gas turbine combustor is disclosed. The combustion liner is cooled by supplying air through a plurality of cooling holes arranged in axially spaced rows in an upper and lower portion of the liner. The cooling holes are spaced accordingly so as to direct additional cooling flow to an area of the combustion liner not receiving sufficient flow due to maldistributions of air from the compressor discharge.

Combustion liner with bias effusion cooling

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Stuart, FL, United States of America

John Thomas Cutright