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

DeSilva, Upul P.; Claussen, Heiko; Yan, Michelle Xiaohong; Rosca, Justinian; Ulerich, Nancy H.

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

Patent · Tue Sep 27 00:00:00 EDT 2016

OSTI ID:1326807

DeSilva, Upul P.; Claussen, Heiko; Yan, Michelle Xiaohong; Rosca, Justinian; Ulerich, Nancy H.

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.

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Research Organization:: SIEMENS ENERGY, INC. Orlando, FL (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42644

Assignee:: SIEMENS ENERGY, INC. (Orlando, FL)

Patent Number(s):: 9,453,784

Application Number:: 14/017,386

OSTI ID:: 1326807

Resource Relation:: Patent File Date: 2013 Sep 04

Country of Publication:: United States

Language:: English

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