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Title: Temperature measurement in a gas turbine engine combustor

Abstract

A method and system for determining a temperature of a working gas passing through a passage to a turbine section of a gas turbine engine. The method includes identifying an acoustic frequency at a first location in the engine upstream from the turbine section, and using the acoustic frequency for determining a first temperature value at the first location that is directly proportional to the acoustic frequency and a calculated constant value. A second temperature of the working gas is determined at a second location in the engine and, using the second temperature, a back calculation is performed to determine a temperature value for the working gas at the first location. The first temperature value is compared to the back calculated temperature value to change the calculated constant value to a recalculated constant value. Subsequent first temperature values at the first location may be determined based on the recalculated constant value.

Inventors:
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1444108
Patent Number(s):
9976915
Application Number:
13/804,132
Assignee:
SIEMENS ENERGY, INC. (Orlando, FL)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 14
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

DeSilva, Upul. Temperature measurement in a gas turbine engine combustor. United States: N. p., 2018. Web.
DeSilva, Upul. Temperature measurement in a gas turbine engine combustor. United States.
DeSilva, Upul. Tue . "Temperature measurement in a gas turbine engine combustor". United States. https://www.osti.gov/servlets/purl/1444108.
@article{osti_1444108,
title = {Temperature measurement in a gas turbine engine combustor},
author = {DeSilva, Upul},
abstractNote = {A method and system for determining a temperature of a working gas passing through a passage to a turbine section of a gas turbine engine. The method includes identifying an acoustic frequency at a first location in the engine upstream from the turbine section, and using the acoustic frequency for determining a first temperature value at the first location that is directly proportional to the acoustic frequency and a calculated constant value. A second temperature of the working gas is determined at a second location in the engine and, using the second temperature, a back calculation is performed to determine a temperature value for the working gas at the first location. The first temperature value is compared to the back calculated temperature value to change the calculated constant value to a recalculated constant value. Subsequent first temperature values at the first location may be determined based on the recalculated constant value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}

Works referenced in this record:

Apparatus for ignition diagnosis in a combustion turbine
patent, December 1992


Acoustic pyrometer
patent, May 2002


Method and system for temperature estimation of gas turbine combustion cans
patent, October 2005


Estimating Combustor Flame Temperature Based on Frequency of Combustor Dynamics Transverse Mode
patent-application, December 2005


Plant temperature control system
patent-application, June 2006


Method and System for Determining Lean Blow Out Condition for Gas Turbine Combustion Cans
patent-application, November 2006


Method and apparatus to detect onset of combustor hardware damage
patent-application, March 2007


Gas turbine system and method
patent-application, October 2009


Attachment Structure of Combustion Oscillation Detecting Device
patent-application, June 2010


Estimating Pre-Turbine Exhaust Temperatures
patent-application, June 2011


The Measurement of Performance of Combustors Using Passive Acoustic Methods
conference, June 2012