Diers, Olaf und Schneider, Denis und Voges, Melanie und Weigand, Peter und Hassa, Christoph (2007) Investigation of Combustion Oscillations in a lean Gas Turbine Model Combustor. In: ASME Turbo Expo 2007. ASME. ASME Turbo Expo 2007: Power for Land, Sea and Air, 2007-05-14 - 2007-05-17, Montreal, Kanada.
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Kurzfassung
This contribution is a continuation of ASME-GT2006-90300. While still working at atmospheric pressure, the range of operating conditions was extended to more realistic reduced mass flows to reproduce the engine pressure loss and air preheat up to 700K. The thermoacoustic behaviour of the burner was mapped over that operating range. Two different types of oscillations were observed for flames anchored at the nozzle or lifted from it. Both exhibited a frequency dependence on the Strouhal number for constant reduced mass flows. For a selected operating point with the lifted flame at a preheat temperature of 600K and a reduced mass flow of 0.3kg K0.5/(s bar), the thermoacoustic behaviour of the burner was characterised by phase locked Particle Image Velocimetry as well as phase locked OH- and OH-T- LIF measurements and correlated to the acoustic pressure signal obtained by microphones. The combined data showed pulsating combustion being supported through periodic reignition of the main flame zone by a recirculating volume of hot, OH-rich gas, the cycle time being connected to the observed frequency. The characterization of the preheated operating point was completed with a heat balance investigation quantifying the non-adiabatic combustion conditions of the uncooled combustor.
elib-URL des Eintrags: | https://elib.dlr.de/48930/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||||||||||||||
Titel: | Investigation of Combustion Oscillations in a lean Gas Turbine Model Combustor | ||||||||||||||||||||||||
Autoren: |
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Datum: | Mai 2007 | ||||||||||||||||||||||||
Erschienen in: | ASME Turbo Expo 2007 | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Herausgeber: |
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Verlag: | ASME | ||||||||||||||||||||||||
Name der Reihe: | GT2007-27360 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Combustor, combustion, gasturbine, thermoacoustic, oscillations, combustion oscillations, limit cycle, PIV, OH-LIF | ||||||||||||||||||||||||
Veranstaltungstitel: | ASME Turbo Expo 2007: Power for Land, Sea and Air | ||||||||||||||||||||||||
Veranstaltungsort: | Montreal, Kanada | ||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
Veranstaltungsbeginn: | 14 Mai 2007 | ||||||||||||||||||||||||
Veranstaltungsende: | 17 Mai 2007 | ||||||||||||||||||||||||
Veranstalter : | ASME | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
HGF - Programmthema: | L VU - Luftverkehr und Umwelt (alt) | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | L VU - Luftverkehr und Umwelt | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Schadstoffarmer Luftverkehr (alt) | ||||||||||||||||||||||||
Standort: | Köln-Porz , Stuttgart | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Verbrennungstechnik > Verbrennungsdiagnostik Institut für Antriebstechnik > Triebwerksmesstechnik Institut für Antriebstechnik > Brennkammer | ||||||||||||||||||||||||
Hinterlegt von: | Diers, Olaf | ||||||||||||||||||||||||
Hinterlegt am: | 18 Jun 2007 | ||||||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 19:11 |
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