High overall pressure ratio (OPR) engine cycles for reduced NOx emissions will generate new aggravated requirements and boundary conditions by implementing low emission combustion technologies into advanced engine architectures. Lean burn combustion systems will have a significant impact on the temperature and velocity traverse at the combustor exit. With the transition to high-pressure engines, it is essential to fully understand and determine the high energetic interface between combustor and turbine to avoid excessive cooling. Spatially resolved temperatures were measured at different operating conditions using planar laser-induced fluorescence of OH (OH-PLIF) and filtered Rayleigh scattering (FRS), the latter being used in a combustor environment for the first time. Apart from a conventional signal detection arrangement, FRS was also applied with an endoscope for signal collection, to assess its feasibility for future application in a full annular combustor with restricted optical access. Both techniques are complementary in several respects, which justified their combined application. OH-PLIF allows instantaneous measurements and therefore enables local temperature statistics, but is limited to relatively high temperatures. On the other hand, FRS can also be applied at low temperatures, which makes it particularly attractive for measurements in cooling layers. However, FRS requires long sampling times and therefore can only provide temporal averages. When applied in combination, the accuracy of both techniques could be improved by each method helping to overcome the other's shortcomings.
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February 2017
Research-Article
Temperature Measurements at the Outlet of a Lean Burn Single-Sector Combustor by Laser Optical Methods
Ulrich Doll,
Ulrich Doll
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Dolll@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Dolll@dlr.de
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Guido Stockhausen,
Guido Stockhausen
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Guido.Stockhausen@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Guido.Stockhausen@dlr.de
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Johannes Heinze,
Johannes Heinze
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Johannes.Heinze@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Johannes.Heinze@dlr.de
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Ulrich Meier,
Ulrich Meier
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Meier@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Meier@dlr.de
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Christoph Hassa,
Christoph Hassa
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Christoph.Hassa@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Christoph.Hassa@dlr.de
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Imon Bagchi
Imon Bagchi
Rolls-Royce Deutschland Ltd & Co KG,
Eschenweg 11, Dahlewitz,
Blankenfelde-Mahlow 15827, Germany
e-mail: Imon-Kalyan.Bagchi@rolls-royce.com
Eschenweg 11, Dahlewitz,
Blankenfelde-Mahlow 15827, Germany
e-mail: Imon-Kalyan.Bagchi@rolls-royce.com
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Ulrich Doll
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Dolll@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Dolll@dlr.de
Guido Stockhausen
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Guido.Stockhausen@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Guido.Stockhausen@dlr.de
Johannes Heinze
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Johannes.Heinze@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Johannes.Heinze@dlr.de
Ulrich Meier
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Meier@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Ulrich.Meier@dlr.de
Christoph Hassa
DLR—German Aerospace Center,
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Christoph.Hassa@dlr.de
Institute of Propulsion Technology,
Linder Hoehe,
Cologne 51147, Germany
e-mail: Christoph.Hassa@dlr.de
Imon Bagchi
Rolls-Royce Deutschland Ltd & Co KG,
Eschenweg 11, Dahlewitz,
Blankenfelde-Mahlow 15827, Germany
e-mail: Imon-Kalyan.Bagchi@rolls-royce.com
Eschenweg 11, Dahlewitz,
Blankenfelde-Mahlow 15827, Germany
e-mail: Imon-Kalyan.Bagchi@rolls-royce.com
1Corresponding author.
Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received June 29, 2016; final manuscript received July 5, 2016; published online September 20, 2016. Editor: David Wisler.
J. Eng. Gas Turbines Power. Feb 2017, 139(2): 021507 (10 pages)
Published Online: September 20, 2016
Article history
Received:
June 29, 2016
Revised:
July 5, 2016
Citation
Doll, U., Stockhausen, G., Heinze, J., Meier, U., Hassa, C., and Bagchi, I. (September 20, 2016). "Temperature Measurements at the Outlet of a Lean Burn Single-Sector Combustor by Laser Optical Methods." ASME. J. Eng. Gas Turbines Power. February 2017; 139(2): 021507. https://doi.org/10.1115/1.4034355
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