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

Self-exited oscillation in a combustion chambber driven by phase change in the liquid fuel feed system

Hassa, C. and Heinze, J. and Meier, U. and Heeger, Ch. and Trunk, Ph. and Dreizler, A. (2011) Self-exited oscillation in a combustion chambber driven by phase change in the liquid fuel feed system. International Journal of Spray and Combustion Dynamics, 3 (4), pp. 273-284. Multi Science & Technology. ISSN 1756-8277.

Full text not available from this repository.

Abstract

A new mechanism for the generation of a self-exited oscillation of combustion in a generic combustion chamber typical for aeroengine combustors is described. The cause of the oscillation is the phase change from liquid to vapour which happens when the preheat temperature of the air flowing through the burner exceeds the boiling temperature at the operating pressure and the fuel flow is so low that heat transfer to the liquid fuel causes evaporation within the fuel channels of the burner. Liquid fuel and vapour alternatively enter the airstream of the burner. This leads to an unstable situation for the flame. Measurements of chemiluminescence and liquid fuel show nearly complete extinction and re-ignition for the limit cycle. Prevention of the oscillation is possible by better thermal management of the fuel path.

Document Type:Article
Title:Self-exited oscillation in a combustion chambber driven by phase change in the liquid fuel feed system
Authors:
AuthorsInstitution or Email of Authors
Hassa, C.Christoph.Hassa@DLR.DE
Heinze, J.Johannes.Heinze@DLR.DE
Meier, U.Ulrich.Meier@DLR.DE
Heeger, Ch.U. Darmstadt
Trunk, Ph.U. Darmstadt
Dreizler, A.U. Darmstadt
Date:2011
Journal or Publication Title:International Journal of Spray and Combustion Dynamics
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:3
Page Range:pp. 273-284
Editors:
EditorsEmail
Sujith, R.I.MIT Madras
Publisher:Multi Science & Technology
ISSN:1756-8277
Status:Published
Keywords:Combustion oscillation, phase change, liquid fuel
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: Dr.-Ing. Christoph Hassa
Deposited On:21 Nov 2011 12:51
Last Modified:26 Feb 2013 15:04

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.