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Title: Non-intrusive measurement of hot gas temperature in a gas turbine engine

Abstract

A method and apparatus for operating a gas turbine engine including determining a temperature of a working gas at a predetermined axial location within the engine. An acoustic signal is encoded with a distinct signature defined by a set of predetermined frequencies transmitted as a non-broadband signal. Acoustic signals are transmitted from an acoustic transmitter located at a predetermined axial location along the flow path of the gas turbine engine. A received signal is compared to one or more transmitted signals to identify a similarity of the received signal to a transmitted signal to identify a transmission time for the received signal. A time-of-flight is determined for the signal and the time-of-flight for the signal is processed to determine a temperature in a region of the predetermined axial location.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
SIEMENS ENERGY, INC. Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1326807
Patent Number(s):
9,453,784
Application Number:
14/017,386
Assignee:
SIEMENS ENERGY, INC. (Orlando, FL) NETL
DOE Contract Number:
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Sep 04
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

DeSilva, Upul P., Claussen, Heiko, Yan, Michelle Xiaohong, Rosca, Justinian, and Ulerich, Nancy H. Non-intrusive measurement of hot gas temperature in a gas turbine engine. United States: N. p., 2016. Web.
DeSilva, Upul P., Claussen, Heiko, Yan, Michelle Xiaohong, Rosca, Justinian, & Ulerich, Nancy H. Non-intrusive measurement of hot gas temperature in a gas turbine engine. United States.
DeSilva, Upul P., Claussen, Heiko, Yan, Michelle Xiaohong, Rosca, Justinian, and Ulerich, Nancy H. Tue . "Non-intrusive measurement of hot gas temperature in a gas turbine engine". United States. doi:. https://www.osti.gov/servlets/purl/1326807.
@article{osti_1326807,
title = {Non-intrusive measurement of hot gas temperature in a gas turbine engine},
author = {DeSilva, Upul P. and Claussen, Heiko and Yan, Michelle Xiaohong and Rosca, Justinian and Ulerich, Nancy H.},
abstractNote = {A method and apparatus for operating a gas turbine engine including determining a temperature of a working gas at a predetermined axial location within the engine. An acoustic signal is encoded with a distinct signature defined by a set of predetermined frequencies transmitted as a non-broadband signal. Acoustic signals are transmitted from an acoustic transmitter located at a predetermined axial location along the flow path of the gas turbine engine. A received signal is compared to one or more transmitted signals to identify a similarity of the received signal to a transmitted signal to identify a transmission time for the received signal. A time-of-flight is determined for the signal and the time-of-flight for the signal is processed to determine a temperature in a region of the predetermined axial location.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 27 00:00:00 EDT 2016},
month = {Tue Sep 27 00:00:00 EDT 2016}
}

Patent:

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