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Title: Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine

Abstract

A method for determining waveguide temperature for at least one waveguide of a transceiver utilized for generating a temperature map. The transceiver generates an acoustic signal that travels through a measurement space in a hot gas flow path defined by a wall such as in a combustor. The method includes calculating a total time of flight for the acoustic signal and subtracting a waveguide travel time from the total time of flight to obtain a measurement space travel time. A temperature map is calculated based on the measurement space travel time. An estimated wall temperature is obtained from the temperature map. An estimated waveguide temperature is then calculated based on the estimated wall temperature wherein the estimated waveguide temperature is determined without the use of a temperature sensing device.

Inventors:
; ;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1435642
Patent Number(s):
9945737
Application Number:
15/128,417
Assignee:
SIEMENS ENERGY, INC. (Orlando, FL)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Apr 21
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

DeSilva, Upul P., Claussen, Heiko, and Ragunathan, Karthik. Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine. United States: N. p., 2018. Web.
DeSilva, Upul P., Claussen, Heiko, & Ragunathan, Karthik. Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine. United States.
DeSilva, Upul P., Claussen, Heiko, and Ragunathan, Karthik. Tue . "Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine". United States. https://www.osti.gov/servlets/purl/1435642.
@article{osti_1435642,
title = {Method for determining waveguide temperature for acoustic transceiver used in a gas turbine engine},
author = {DeSilva, Upul P. and Claussen, Heiko and Ragunathan, Karthik},
abstractNote = {A method for determining waveguide temperature for at least one waveguide of a transceiver utilized for generating a temperature map. The transceiver generates an acoustic signal that travels through a measurement space in a hot gas flow path defined by a wall such as in a combustor. The method includes calculating a total time of flight for the acoustic signal and subtracting a waveguide travel time from the total time of flight to obtain a measurement space travel time. A temperature map is calculated based on the measurement space travel time. An estimated wall temperature is obtained from the temperature map. An estimated waveguide temperature is then calculated based on the estimated wall temperature wherein the estimated waveguide temperature is determined without the use of a temperature sensing device.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {4}
}

Works referenced in this record:

Novel Gas Turbine Exhaust Temperature Measurement System
conference, November 2013

  • DeSilva, Upul; Bunce, Richard H.; Claussen, Heiko
  • ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers
  • https://doi.org/10.1115/GT2013-95152

The application of image processing to acoustic pyrometry
conference, August 2002


Real-time monitoring on boiler combustion based on acoustic measurement
conference, June 2006


    Works referencing / citing this record:

    Acoustic Transducer in System for Gas Temperature Measurement in Gas Turbine Engine
    patent-application, July 2015


    Distributed temperature sensor apparatus
    patent, June 1987


    Combustion anomaly detection via wavelet analysis of dynamic sensor signals
    patent, December 2010


    Gas Turbine Temperature Measurement
    patent-application, May 2014


    Non-invasive sensing technique for measuring gas flow and temperature
    patent-application, July 2007


    Temperature Measuring Device
    patent, July 1971


    Transit Time Correction In A Flow Sensor
    patent-application, November 2010


    Non-Intrusive Measurement of Hot Gas Temperature in a Gas Turbine Engine
    patent-application, March 2015


    Apparatus, System and Process for Characterizing Multiphase Fluids in a Fluid Flow Stream
    patent-application, August 2015


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    patent, September 1991


    Fluid flow measuring apparatus
    patent, March 1982


    Nonintrusive Performance Measurement of a Gas Turbine Engine in Real Time
    patent-application, September 2015


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    patent, June 1999


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    patent, January 1981


    Transducer assembly
    patent, September 2010


    Ultrasonic Transducer And Ultrasonic Flow Meter Including Ultrasonic Transducer
    patent-application, May 2015


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    patent, December 2010


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    patent-application, August 2012


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    patent, October 1998


    Parameter Distribution Mapping in a Gas Turbine Engine
    patent-application, September 2015


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    patent, June 1982


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    patent-application, May 2014


    Ultrasonic Measuring Unit Having Integrated Humidity Analysis
    patent-application, July 2009


    Apparatus for determining fluid flow
    patent, January 2007


    Apparatus for measuring parameters of a flowing multiphase mixture
    patent-application, October 2004


    Active Measurement of Gas Flow Temperature, Including in Gas Turbine Combustors
    patent-application, June 2015


    Distributed temperature sensor
    patent, February 1994


    Method and apparatus for actively controlling fuel flow to a mixer assembly of a gas turbine engine combustor
    patent, August 2011


    Gas Turbine Engine Control Using Acoustic Pyrometry
    patent-application, June 2012