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Analysis of air-blasted kerosene vapour concentration at realistic gas turbine conditions using laser infra-red absorption

Guliani, Fabrice and Bhayaraju, Umesh and Hassa, Christoph (2007) Analysis of air-blasted kerosene vapour concentration at realistic gas turbine conditions using laser infra-red absorption. In: Proceedings of the European Combustion Meeting 2007, 23-9-1-23-9-6. European Combustion Meeting, 2007-04-11, Chania, Griechenland.

Full text not available from this repository.

Abstract

The infra-red absorption technique (IRA) is a line-of-sight, non-intrusive laser method, that provides the relative fuel vapour concentration in a multiphase flow with evaporation at isothermal conditions. Experiments using this technique were carried out on the LPP test rig of DLR Cologne in the frame of the EU LOPOCOTEP programme. A modular air-blast injection system with variable swirl number and fuel nozzle position was tested under several realistic gas turbine flow injection conditions. The resulting atomisation (particle size, velocity and fuel placement) has been reported by Becker $&$ Hassa cite{becker-hassa-2004}. This paper focuses on the complementary results on the fuel vapour phase conducted with IRA. The technique and its specific configuration are briefly described. The different vapour concentration profiles obtained are discussed. Some configurations, that were previously found to provide a discontinuous spray using a PDA sampling reconstruction technique, are investigated more detailed. The adaptation of IRA for time-resolved measurements, the physics of the discontinuity observed in the spray and subsequent fuel vapour concentration fluctuations are discussed.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Analysis of air-blasted kerosene vapour concentration at realistic gas turbine conditions using laser infra-red absorption
Authors:
AuthorsInstitution or Email of Authors
Guliani, FabriceUNSPECIFIED
Bhayaraju, UmeshUNSPECIFIED
Hassa, ChristophUNSPECIFIED
Date:11 April 2007
Journal or Publication Title:Proceedings of the European Combustion Meeting 2007
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:23-9-1-23-9-6
Editors:
EditorsEmail
Gökalp, IskenderUNSPECIFIED
Status:Published
Keywords:Gas turbine, air blast atomizer, infra red absorption
Event Title:European Combustion Meeting
Event Location:Chania, Griechenland
Event Type:international Conference
Event Dates:2007-04-11
Organizer:European Combustion Institute
HGF - Research field:Aeronautics, Space and Transport (old)
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 > Combustor
Deposited By: Dr.-Ing. Christoph Hassa
Deposited On:29 Jun 2007
Last Modified:27 Apr 2009 13:55

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