Rapid gas temperature measurement device for gas turbine engines with detection of pre-surge phenomena

A differential system for measurement of gas temperature in gas turbine engines (GTE) using acoustic multi-vibrators was presented. Application of acoustic multi-vibrators improves the response time by three orders of magnitude compared to thermocouples. Combined use with a gas flow meter and a vibr...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-05, Vol.1891 (1), p.12048
Main Authors: Artyukhov, A V, Babkin, V I, Sukhinets, Z A, Gulin, A I
Format: Article
Language:English
Subjects:
Acoustics
Combustion chambers
Differential thermal analysis
Gas flow
Gas temperature
Gas turbine engines
Gases
Physics
Response time
Temperature measurement
Thermocouples
Vibration measurement
Vibrators
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Summary:A differential system for measurement of gas temperature in gas turbine engines (GTE) using acoustic multi-vibrators was presented. Application of acoustic multi-vibrators improves the response time by three orders of magnitude compared to thermocouples. Combined use with a gas flow meter and a vibration sensor makes it possible to measure the low-frequency component of acoustic vibrations of flowing gases in a GTE’s combustion chamber. As an example, a calculation to determine the resonance frequency of a combustion chamber of a GTE was given.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1891/1/012048