skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nonintrusive performance measurement of a gas turbine engine in real time

Patent ·
OSTI ID:1377867
;

Performance of a gas turbine engine is monitored by computing a mass flow rate through the engine. Acoustic time-of-flight measurements are taken between acoustic transmitters and receivers in the flow path of the engine. The measurements are processed to determine average speeds of sound and gas flow velocities along those lines-of-sound. A volumetric flow rate in the flow path is computed using the gas flow velocities together with a representation of the flow path geometry. A gas density in the flow path is computed using the speeds of sound and a measured static pressure. The mass flow rate is calculated from the gas density and the volumetric flow rate.

Research Organization:
Siemens Energy, Inc. Orlando, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc.
Patent Number(s):
9,746,360
Application Number:
14/341,950
OSTI ID:
1377867
Resource Relation:
Patent File Date: 2014 Jul 28
Country of Publication:
United States
Language:
English

References (82)

Temperature-Sensing and/or Sound Velocity-Measuring Device patent January 1952
Dual Path Ultrasonic Fluid Flow Metering System and Method patent June 1974
Fluid flow measuring apparatus patent March 1982
Long wavelength acoustic flowmeter patent May 1984
Distributed temperature sensor apparatus patent June 1987
Apparatus and methods for measuring fluid flow parameters patent July 1988
Acoustic pyrometer patent July 1989
Apparatus and methods for measuring fluid flow parameters patent August 1989
Liquid acoustic waveguide tube patent September 1990
Measurement of fluid properties of two-phase fluids using an ultrasonic meter patent May 1992
Apparatus for ignition diagnosis in a combustion turbine patent December 1992
Apparatus for combustion, pollution and chemical process control patent January 1994
Ultrasonic mass flow meter for solids suspended in a gas stream patent December 1994
Apparatus for determining fluid flow patent August 1996
Methods, apparatus and systems for real time identification and control of modes of oscillation patent February 1998
Methods, apparatus and systems for real time identification and control modes of oscillation patent July 1998
Personal speedometer patent June 1999
Temperature sensor arrangement in combination with a gas turbine combustion chamber patent November 2000
Process and apparatus for measuring density and mass flow patent March 2001
Acoustic pyrometer patent May 2002
Combustion diagnostics method and system patent May 2002
Controlling system and method for operating a controlling system patent November 2002
Ultrasonic flow metering system patent December 2002
Method for determining flow velocity in a channel patent December 2002
Knock and misfire detection system patent April 2003
Vibration monitoring system for gas turbine engines patent July 2004
Method and system for assessing combustion noise in an internal combustion engine patent February 2005
Method and system for temperature estimation of gas turbine combustion cans patent October 2005
Combustion emission estimation with flame sensing system patent March 2006
Vibration monitoring system for gas turbine engines patent March 2006
Apparatus for determining fluid flow patent January 2007
Bearing anomaly detection and location patent March 2007
Flame detection system patent April 2007
Methods and apparatus for gas turbine engine lean blowout avoidance patent October 2007
Ultrasonic flow meter including turbulators patent June 2008
System and method for diagnosing faults utilizing baseline modeling techniques patent June 2008
Apparatus for observing combustion conditions in a gas turbine engine patent February 2009
Temperature and pressure sensor using four wave mixing technique patent October 2009
Apparatus and method for attenuating acoustic waves in pipe walls for clamp-on ultrasonic flow meter patent December 2009
Fluid motion and composition analysis device and method patent December 2009
Measuring device and method for determining temperature and/or pressure using measuring device patent June 2010
Apparatus and method for measuring a fluid flow parameter within an internal passage of an elongated body patent July 2010
Apparatus and methods for acoustically determining internal characteristics of an engine and the like patent July 2010
Transducer assembly patent September 2010
Combustion anomaly detection via wavelet analysis of dynamic sensor signals patent December 2010
Method and apparatus for actively controlling fuel flow to a mixer assembly of a gas turbine engine combustor patent August 2011
Device for determining a mass flow of a first gas within an overall mixture of gases patent November 2011
Method for testing gas turbine engines patent April 2012
Method of and system for determining the mass flow rate of a fluid flowing in a conduit patent-application January 2004
Apparatus for measuring parameters of a flowing multiphase mixture patent-application October 2004
Process diagnostics patent-application January 2005
Ultrasonic gas flowmeter as well as device to measure exhaust flows of internal combustion engines and method to determine flow of gases patent-application March 2005
Method and apparatus for detecting compressor stall precursors patent-application June 2005
Estimating Combustor Flame Temperature Based on Frequency of Combustor Dynamics Transverse Mode patent-application December 2005
Systems and Methods for Detection of Blowout Precursors in Combustors patent-application June 2006
Method and System for Determining Lean Blow Out Condition for Gas Turbine Combustion Cans patent-application November 2006
Apparatus and methods for acoustically determining internal characteristics of an engine and the like patent-application February 2007
Method and apparatus to detect onset of combustor hardware damage patent-application March 2007
Non-invasive sensing technique for measuring gas flow and temperature patent-application July 2007
System and Apparatus for Gas Turbine Engine Lean Blowout Avoidance patent-application January 2008
Turbocharger Systems and Methods for Operating the Same patent-application February 2008
Sonar-Based Flow Meter Operable To Provide Product Identification patent-application August 2008
Ultrasonic Measuring Unit Having Integrated Humidity Analysis patent-application July 2009
High Temperature Pressure Sensor Element, Particularly for Measuring Pressures Inside Jet Engines, Method for the Production Thereof and Component for Jet Engines patent-application July 2009
Gas turbine system and method patent-application October 2009
Combustion Anomaly Detection Via Wavelet Analysis Of Dynamic Sensor Signals patent-application March 2010
Attachment Structure of Combustion Oscillation Detecting Device patent-application June 2010
Apparatus and Method for Improving the Damping of Acoustic Waves patent-application November 2010
Transit Time Correction In A Flow Sensor patent-application November 2010
Estimating Pre-Turbine Exhaust Temperatures patent-application June 2011
Gas Turbine Engine Control Using Acoustic Pyrometry patent-application June 2012
System And Method For Ultrasonic Metering Using An Orifice Meter Fitting patent-application May 2014
Gas Turbine Temperature Measurement patent-application May 2014
Non-Intrusive Measurement of Hot Gas Temperature in a Gas Turbine Engine patent-application March 2015
Ultrasonic Transducer And Ultrasonic Flow Meter Including Ultrasonic Transducer patent-application May 2015
Active Measurement of Gas Flow Velocity or Simultaneous Measurement of Velocity and Temperature, Including in Gas Turbine Combustors patent-application June 2015
Active Measurement of Gas Flow Temperature, Including in Gas Turbine Combustors patent-application June 2015
Acoustic Transducer in System for Gas Temperature Measurement in Gas Turbine Engine patent-application July 2015
Nonintrusive Performance Measurement of a Gas Turbine Engine in Real Time patent-application September 2015
Parameter Distribution Mapping in a Gas Turbine Engine patent-application September 2015
The application of image processing to acoustic pyrometry conference August 2002
Real-time monitoring on boiler combustion based on acoustic measurement conference June 2006

Similar Records

Related Subjects

42 ENGINEERING
33 ADVANCED PROPULSION SYSTEMS