elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Characterization of Lean Burn Module Air Blast Pilot Injector With Laser Techniques

Meier, Ulrich and Freitag, Stefan and Heinze, Johannes and Lange, Lena and Magens, Eggert and Schroll, Michael and Willert, Christian and Hassa, Christoph and Bagchi, Imon-Kalyan and Lazik, Waldemar and Whiteman, Michael (2013) Characterization of Lean Burn Module Air Blast Pilot Injector With Laser Techniques. Journal of Engineering for Gas Turbines and Power, 135 (12), pp. 121508-1. American Society of Mechanical Engineers (ASME). doi: 10.1115/1.4025148. ISSN 0742-4795.

Full text not available from this repository.

Official URL: http://gasturbinespower.asmedigitalcollection.asme.org/

Abstract

For lean burn combustor development in low emission aero-engines, the pilot stage of the fuel injector plays a key role with respect to stability, operability, NOx emissions, and smoke production. Therefore it is of considerable interest to characterize the pilot module in terms of pilot zone mixing, fuel placement, flow field, and interaction with the main stage. This contribution focuses on the investigation of soot formation during pilotonly operation. Optical test methods were applied in an optically accessible single sector rig at engine idle conditions. Using planar laser-induced incandescence (LII), the distribution of soot and its dependence on air/fuel ratio, as well as geometric injector parameters, was studied. The data shows that below a certain air/fuel ratio, an increase of soot production occurs. This is in agreement with smoke number measurements in a standard single sector flame tube rig without optical access. Reaction zones were identified using chemiluminescence of OH radicals. In addition, the injector flow field was investigated with PIV. A hypothesis regarding the mechanism of pilot smoke formation was made based on these findings. This along with further investigations will form the basis for developing strategies for smoke improvement at elevated pilot-only conditions.

Item URL in elib:https://elib.dlr.de/87214/
Document Type:Article
Title:Characterization of Lean Burn Module Air Blast Pilot Injector With Laser Techniques
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Meier, UlrichUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Freitag, StefanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heinze, JohannesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lange, LenaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Magens, EggertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schroll, MichaelUNSPECIFIEDhttps://orcid.org/0000-0003-0736-546XUNSPECIFIED
Willert, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-1668-0181UNSPECIFIED
Hassa, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bagchi, Imon-KalyanRolls-Royce DeutschlandUNSPECIFIEDUNSPECIFIED
Lazik, WaldemarRolls-Royce DeutschlandUNSPECIFIEDUNSPECIFIED
Whiteman, MichaelRolls-Royce PLC DerbyUNSPECIFIEDUNSPECIFIED
Date:December 2013
Journal or Publication Title:Journal of Engineering for Gas Turbines and Power
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:135
DOI:10.1115/1.4025148
Page Range:pp. 121508-1
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDAmerican Socitey of Mechanical EngineersUNSPECIFIEDUNSPECIFIED
Publisher:American Society of Mechanical Engineers (ASME)
ISSN:0742-4795
Status:Published
Keywords:aero-engine gas turbine, soot, combustor, lean burn, laser diagnostics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Combustion Chamber Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Combustor
Deposited By: Meier, Dr.rer.nat. Ulrich
Deposited On:07 Jan 2014 14:51
Last Modified:29 Nov 2023 13:43

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.