Active temperature monitoring in gas turbine combustors

Abstract

Acoustic pyrometry-based active temperature monitoring of gas turbine combustors, including industrial gas turbine (IGT) combustors is incorporated into the combustion monitoring and control system by addition of an acoustic transmitter or acoustic transceiver that transmits a sound wave in a line-of-sight with a plurality of thermoacoustic sensors, such as dynamic pressure sensors. Sound transmission time-of-flight is measured by the controller and correlated with path temperature along the line-of-sight. Path(s) of acoustic transmission serve as absolute temperature measurement that optionally is used for calibrating dominant mode passive bulk temperature measurement. In an integrated thermoacoustic pressure-based sensor and monitoring / control system embodiment, the controller correlates performance of an combustion thermoacoustic properties in order to identify combustion anomalies by wavelet or Fourier analysis techniques, determine bulk temperature characteristics within the combustor with dominant mode frequency analysis techniques and determines absolute active path temperatures within the combustor with acoustic transmission and time-of-flight analysis techniques.

Description

[0001] Cross References to Related Applications [0002] This application fully incorporates by reference the following co-pending U.S. patent applications as if fully set forth herein: [0003] "Multi Functional Sensor System For Gas Turbine Combustion Monitoring And Control" with unknown serial number and docket number 2013P10742US (Siemens 207) filed on the same day; [0004] Serial No. 12 / 967,148, Publication No. US2012 / 0150413, "Gas Turbine Engine Control Using Acoustic Pyrometry," filed December 14, 2010; [0005] Serial No. 13 / 804,132, "Temperature Measurement in a Gas Turbine Engine Combustor," filed March 14, 2013. [0006] This application is also incorporated by reference in its entirety in US Patent No. 7,853,433, "Combustion Anomaly Detection Via Wavelet Analysis of Dynamic Sensor Signals," issued December 14, 2010, as if fully set forth herein. technical field [0007] The present invention relates to combustion monitoring and control, including anomaly detecti...

AI Technical Summary

Problems solved by technology

Known combined IGT and other types of gas turbine engine monitoring and control system sensors and detection methods do not cover all possible detection of adverse combustion faults

Installing different types of different sensors and sensing systems in a single combustion turbine engine increases installation and maintenance costs

Additionally, different sensors and sensing systems inherently introduce response lags and delays in the overall engine control system

Images