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Investigation on the Influence of Particle Size and Concentration on the Spray and Combustion Characteristics of Aluminium Particle Containing Gels with an Impinging Jet Injector

Madlener, Klaus and Sinatra, Claudio and Ciezki, Helmut (2007) Investigation on the Influence of Particle Size and Concentration on the Spray and Combustion Characteristics of Aluminium Particle Containing Gels with an Impinging Jet Injector. 2nd European Conference for Aerospace Sciences (EUCASS2007), 2007-07-01 - 2007-07-06, Brussels (Belgium).

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Abstract

The performance characteristics of various aluminized gelled fuels were determined in a detailed investigation concerning their rheological, spray and combustion properties. The viscosity properties were obtained for gels with different grades of Al particles with Sauter diameters in the range between 0.76 µm and 190 µm. For the determination of the atomization characteristics with a doublet like-on-like impinging jet injector setup 4 particle grades were selected. The results show that the curves for the Sauter diameters of the droplets in dependence of the jet velocity are in a similar range, whereas the measured diameters decrease with increasing gel jet velocity. The combustion characteristics of a selected gel in a combustion chamber under ramjet relevant conditions at 6 and 11 bar were obtained. They show higher efficiencies at the higher combustor pressure level and in general increasing efficiencies with increasing jet exit velocities.

Item URL in elib:https://elib.dlr.de/50543/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Investigation on the Influence of Particle Size and Concentration on the Spray and Combustion Characteristics of Aluminium Particle Containing Gels with an Impinging Jet Injector
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Madlener, KlausUNSPECIFIEDUNSPECIFIED
Sinatra, ClaudioUNSPECIFIEDUNSPECIFIED
Ciezki, HelmutUNSPECIFIEDUNSPECIFIED
Date:July 2007
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:impinging jet injector, spray characteristics, non-Newtonian fluid, gelled fuel, gelled propellants
Event Title:2nd European Conference for Aerospace Sciences (EUCASS2007)
Event Location:Brussels (Belgium)
Event Type:international Conference
Event Dates:2007-07-01 - 2007-07-06
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Technologie
Deposited By: Ciezki, Dr.-Ing. Helmut
Deposited On:07 Aug 2007
Last Modified:27 Apr 2009 14:11

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