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AN OVERVIEW OF THE GERMAN GEL PROPULSION TECHNOLOGY PROGRAM

Kirchberger, C. and Ciezki, H. and Hürrtlen, J. and Schaller, U. and Weiser, V. and Caldas-Pinto, P. and Ramsel, J. and Naumann, K.W. (2016) AN OVERVIEW OF THE GERMAN GEL PROPULSION TECHNOLOGY PROGRAM. Space Propulsion 2016, 02.-06. Mai 2016, Rom, Italien.

Full text not available from this repository.

Abstract

Gelled fluids are homogeneous mixtures of a liquid and a gelling agent. They behave like a solid at rest in the tank but can be liquefied if a sufficiently high shear stress is applied upon injection into the combustion chamber. Gelled propellants are of interest for rocket and ramjet propulsion systems because of their inherent safety and performance benefits compared to pure storable liquids. Due to their non-Newtonian flow behavior, gelled propellants combine the advantages of liquid and solid propellants. Engines with gelled propellants can be throttled and restarted, similar to engines with liquid propellants. On the other hand, engines with gelled propellants have simple handling and storage characteristics and reduced sloshing. Gelled propellants spill not through leaks and have a reduced vapor pressure in comparison to their basic (Newtonian) fluid. In this respect gel propellant engines behave like solid-propellant motors. In the last two decades a growing interest in gelled propellants for rocket and ramjet propulsion applications has been observed worldwide. In Germany, within the German Gel Propulsion Technology Program (GGPT), which was started in 2001, necessary technologies to build a green gel propellant rocket engine are developed and its capabilities demonstrated by static tests and in 2009 two successful demonstration flights. Ongoing activities comprise development of next generation gelled propellants which combine relatively high ballistic performance with insensitivity and low environmental hazards, maturing technologies like thermal management and control as well as deepening the knowledge on the combustion chamber processes i.e. injection, atomization, evaporation and combustion. The paper gives an extensive overview on challenges, activities and findings obtained within the GGPT.

Item URL in elib:https://elib.dlr.de/107915/
Document Type:Conference or Workshop Item (Speech)
Title:AN OVERVIEW OF THE GERMAN GEL PROPULSION TECHNOLOGY PROGRAM
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kirchberger, C.christoph.kirchberger (at) dlr.deUNSPECIFIED
Ciezki, H.helmut.ciezki (at) dlr.deUNSPECIFIED
Hürrtlen, J.Fraunhofer institute of chemical technology - ict, pfinztal, germanyUNSPECIFIED
Schaller, U.Fraunhofer institute of chemical technology - ict, pfinztal, germanyUNSPECIFIED
Weiser, V.Fraunhofer institute of chemical technology - ict, pfinztal, germanyUNSPECIFIED
Caldas-Pinto, P.Bayern-Chemie GmbH, Aschau/InnUNSPECIFIED
Ramsel, J.Bayern-Chemie GmbH, Aschau/InnUNSPECIFIED
Naumann, K.W.Bayern-Chemie GmbH, Aschau/InnUNSPECIFIED
Date:6 May 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:gelled propellants, new propellants, green propulsion
Event Title:Space Propulsion 2016
Event Location:Rom, Italien
Event Type:international Conference
Event Dates:02.-06. Mai 2016
Organizer:3AF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Propellants
Deposited By: Schmidt, Melanie
Deposited On:17 Nov 2016 08:02
Last Modified:17 Nov 2016 08:02

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