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Paraffin-Based Fuel for Hybrid Rocket Engines Application Feasibility Studies

Kobald, Mario and Ciezki, Helmut and Toson, Elena and Cavanna, Emanuele and De Luca, Luigi and Consolati, Giavanni (2014) Paraffin-Based Fuel for Hybrid Rocket Engines Application Feasibility Studies. 10-ISICP, 02.-06. Jun. 2014, Poitiers, Frankreich.

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This paper describes combined analysis performed in pure waxes and paraffin based mixtures that can be used as fuels in hybrid engines. The feasibility of the use of such materials as fuels in hybrid rockets is under study at SPLab in Politecnico di Milano and at the DLR Institute of Space Propulsion in Germany. Density measurements of pure waxes were performed using a dilatometer. An experimental facility was set up and, after preliminary measurements and calibration, a repeatable procedure was implemented. The implemented instrumentation set up allowed the measure of density in softening and melting intervals. Mechanical uniaxial tensile tests were performed according to Standard ISO 527-1, on pure macro paraffin and microcrystalline wax and on these waxes doped with stearic acid and graphite; elastic modulus, elongation and maximum stress were calculated. Data indicates that ductile rupture is achievable even on pure tested macro paraffin. Moreover micro-crystalline wax was mixed with a synthetic wax characterized by higher nominal melting temperature in order to improve the softening point up to higher temperatures without compromising regression rate values. Thermal, rheological, viscosimetric and ballistic experiments were performed on this new formulation, promising for applications characterized by wide temperature ranges.

Item URL in elib:https://elib.dlr.de/93177/
Document Type:Conference or Workshop Item (Speech)
Title:Paraffin-Based Fuel for Hybrid Rocket Engines Application Feasibility Studies
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Toson, ElenaSpace Prop. Lab.; Politecnico di Milano, ItalyUNSPECIFIEDUNSPECIFIED
Cavanna, EmanueleSpace Prop. Lab.; Politecnico di Milano, ItalyUNSPECIFIEDUNSPECIFIED
De Luca, LuigiSpace Prop. Lab.; Politecnico di Milano, ItalyUNSPECIFIEDUNSPECIFIED
Consolati, GiavanniSpace Prop. Lab.; Politecnico di Milano, ItalyUNSPECIFIEDUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:experimental, density, dilatometer, thermal, viscosity, rheology, mechanical, ballistic, micro, macro.
Event Title:10-ISICP
Event Location:Poitiers, Frankreich
Event Type:international Conference
Event Dates:02.-06. Jun. 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Vorhaben ForTrAS - Fortschrittliche Treibstoffe für Anwendungen im Satellitenbereich (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Propellants
Deposited By: Schmidt, Melanie
Deposited On:17 Dec 2014 15:54
Last Modified:17 Dec 2014 15:54

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