General Electric Company

Ilan Leibu

Fei Han

Eamon Patrick Gleeson

Warren James Mick

George Edward Williams

Scott Alan Kopcho

Shiva Kumar Srinivasan

Xiaomo Jiang

Shivakumar Srinivasan

Devang Jagdish Gandhi

Matthew Everett Moore

Lijie Yu

Karen Warren Miller

Ketan Kalele

A monitoring system for a gas turbine includes a processor configured to receive an operating signal indicating an operating parameter of the gas turbine. The processor is configured to predict an occurrence of a lean blowout (LBO) event based on the operating parameter and an entropy ratio of combustion dynamics associated with a combustor of the gas turbine, wherein the LBO event corresponds to when the combustor stops firing. The processor is configured to send an alarm signal indicating the predicted LBO event to an electronic device prior to the occurrence of the LBO event.

System and method to enhance lean blowout monitoring

A method for determining a lean blow out condition for a combustor. In an exemplary embodiment, the method includes determining acoustical frequency data for the combustor, determining a combustor flame temperature based on the acoustical frequency data, determining an existing fuel/air ratio in the combustor based on the combustor flame temperature, and comparing the existing fuel/ratio to a lean blow out fuel/air ratio. A lean blow out condition for the combustor is indicated when the existing fuel/air ratio is about equal to the lean blow out fuel/air ratio.

Method and system for determining lean blow out condition for gas turbine combustion cans

A method for determining when a combustor is experiencing hardware damage includes sensing acoustic vibrations of a plurality of combustor cans, determining a center frequency for each acoustic tone of the sensed acoustic vibrations within a predetermined frequency range, and indicating an alarm when a center frequency of one or more of the combustor cans changes in a different manner compared to a representative center frequency of the plurality of combustor cans.

Method and apparatus to detect onset of combustor hardware damage

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Marietta, GA, United States of America

Ilan Leibu