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Time-resolved temperature profile measurements in the exhaust of a single sector gas turbine combustor at realistic operating conditions

Greifenstein, Max and Heinze, Johannes and Willert, Christian and Voigt, Lena and Zedda, Marco and Richter, Christoph and Dreizler, Andreas (2020) Time-resolved temperature profile measurements in the exhaust of a single sector gas turbine combustor at realistic operating conditions. Experiments in Fluids, 61, p. 177. Springer. doi: 10.1007/s00348-020-03011-8. ISSN 0723-4864.

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Official URL: https://link.springer.com/article/10.1007/s00348-020-03011-8

Abstract

Records of the time-varying temperature profile at flight relevant operating conditions are acquired at the exit of a combustion chamber fitted with a staged, lean-burn fuel injector using high-speed laser induced fluorescence (LIF) at a sample rate of 10 kHz. Temperatures are estimated from the concentration dependent fluorescence of the hydroxyl (OH) radical under the assumption of local equilibrium. Beyond the time-series analysis, the acquired data is correlated with simultaneously acquired OH chemiluminescence sampled in the primary zone near the fuel injector. These analyses reveal a strong influence from the precessing vortex core, originating in the primary zone, on oscillations in the temperature profiles measured at the exit of the combustor.

Item URL in elib:https://elib.dlr.de/134572/
Document Type:Article
Title:Time-resolved temperature profile measurements in the exhaust of a single sector gas turbine combustor at realistic operating conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Greifenstein, MaxTU Darmstadthttps://orcid.org/0000-0001-5624-3165
Heinze, JohannesJohannes.Heinze (at) dlr.deUNSPECIFIED
Willert, ChristianChris.Willert (at) dlr.dehttps://orcid.org/0000-0002-1668-0181
Voigt, Lenalena.voigt (at) dlr.dehttps://orcid.org/0000-0001-9011-2855
Zedda, MarcoRolls Royce plc., UKUNSPECIFIED
Richter, ChristophRolls Royce Deutschland Ltd Co KGUNSPECIFIED
Dreizler, AndreasTU Darmstadthttps://orcid.org/0000-0001-5803-7947
Date:July 2020
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:61
DOI :10.1007/s00348-020-03011-8
Page Range:p. 177
Publisher:Springer
ISSN:0723-4864
Status:Published
Keywords:gas turbine, aeroengine, lean burn fuel injector, highspeed imaging, OH-LIF, temperature, high pressure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods (old), L - Combustion Chamber Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
Deposited By: Willert, Dr.phil. Christian
Deposited On:26 Oct 2020 09:57
Last Modified:26 Oct 2020 09:57

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