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Study of an Airblast Atomizer Spray in a Lean Burn Aero-Engine Model Combustor at Engine Conditions

Freitag, Stefan and Behrendt, Thomas and Heinze, Johannes and Lange, Lena and Meier, Ulrich and Hassa, Christoph and Rackwitz, Leif (2011) Study of an Airblast Atomizer Spray in a Lean Burn Aero-Engine Model Combustor at Engine Conditions. ILASS 2011, 05.-07. Sep. 2011, Estoril, Portugal. ISBN 9789892024097.

Full text not available from this repository.

Official URL: http://www.ilass2011.org/programme.asp

Abstract

This contribution reports on results of fuel spray caracterization experiments in the primary zone of a lean combustor equipped with a piloted injector with airblast atomization. Tests were performed at idle and engine cruise conditions in an optically accessible high pressure single sector rig, using planar Mie scattering and Phase Doppler Anemometry (PDA). In the case of PDA; the primary goal was to perform a survey to explore the applicability of PDA in combusting high pressure two phase flows, and to develop strategies for optimization and validation of the technique under such conditions. Data on liquid fuel placement, droplet velocities and sizes are presented and discussed. Size-dependent droplet velocities and Sauter mean diameters were measured at different axial and radial positions in the combustor, showing generally small droplets. Velocities of droplets with different sizes were found to be generally similar. The data illustrate the necessity of a careful design of the optical arrangement and operation parameters of a PDA setup under the adverse conditions existing in a jet engine combustor.

Document Type:Conference or Workshop Item (Paper)
Additional Information:Das Dokument ist auf der angegebenen offiziellen URL als Abstract und Paper kostenlos zum Herunterladen hinterlegt.
Title:Study of an Airblast Atomizer Spray in a Lean Burn Aero-Engine Model Combustor at Engine Conditions
Authors:
AuthorsInstitution or Email of Authors
Freitag, Stefanstefan.freitag@dlr.de
Behrendt, ThomasThomas.Behrendt@dlr.de
Heinze, JohannesJohannes.Heinze@dlr.de
Lange, LenaLena.Lange@dlr.de
Meier, UlrichUlrich.Meier@dlr.de
Hassa, ChristophChristoph.Hassa@dlr.de
Rackwitz, Leifleif.rackwitz@rolls-royce.com
Date:September 2011
Refereed publication:Yes
In ISI Web of Science:No
ISBN:9789892024097
Status:Published
Keywords:Airblast Atomizer, Combustor, Aero engine, PDA,
Event Title:ILASS 2011
Event Location:Estoril, Portugal
Event Type:international Conference
Event Dates:05.-07. Sep. 2011
Organizer:Instituto Superior Técnico; Center for Innovation, Technology and Policy Research, IN+ Av. Rovisco Pais 1049 Lisboa, Portugal
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 - Combustion Chamber Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Engine Measurement Systems
Institute of Propulsion Technology > Combustor
Deposited By: Stefan Freitag
Deposited On:02 Nov 2011 08:46
Last Modified:20 Aug 2012 11:18

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