Stützer, Robert and Balkenhohl, Jakob and Lauck, Felix and Oschwald, Michael (2021) Optical Properties of the Hypergolic Reaction Between Green Ionic Liquids and Highly Concentrated Hydrogen Peroxide. 7. Space Propulsion Conference, 17.-19. März 2021, Internet.
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Abstract
The hypergolic reaction between the recently developed green propellant combination consisting of an ionic liquid and highly concentrated hydrogen peroxide was investigated for several ratios of oxidizer and fuel, drop sizes and heights of fall. The influence of the catalytic copper additive on the ignition delay time (IDT) was analysed. Flame emission/absorption spectroscopy revealed the chemical constituents. All spectra were dominated by sodium D-lines at λ= 589nm. Further lines of alkali metals such as lithium and potassium were found. The copper additive showed its characteristic lines accordingly to its amount in the fuel. Emission spectra of the ultraviolet regime showed the characteristic OH* molecular lines around λ= 306nm with its temperature dependent intensity ratios [1][2]. The catalytic additive copper increases the flame temperature while it decreases the IDT from 31 ms for pure ionic liquid to 15 ms (5% mass fraction).
Item URL in elib: | https://elib.dlr.de/141636/ | |||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
Title: | Optical Properties of the Hypergolic Reaction Between Green Ionic Liquids and Highly Concentrated Hydrogen Peroxide | |||||||||||||||
Authors: |
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Date: | 19 March 2021 | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | No | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | No | |||||||||||||||
In ISI Web of Science: | No | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | Hypergolic, Ignition, Combustion, Spectroscopy, Ignition Delay Time | |||||||||||||||
Event Title: | 7. Space Propulsion Conference | |||||||||||||||
Event Location: | Internet | |||||||||||||||
Event Type: | international Conference | |||||||||||||||
Event Dates: | 17.-19. März 2021 | |||||||||||||||
Organizer: | 3AF | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Space | |||||||||||||||
HGF - Program Themes: | Space System Technology | |||||||||||||||
DLR - Research area: | Raumfahrt | |||||||||||||||
DLR - Program: | R SY - Space System Technology | |||||||||||||||
DLR - Research theme (Project): | R - Systems Engineering Optische Systeme (old), R - Optical Technologies and Applications, Grüne Geltreibstoffe für Raumfahrtrelevante Anwendungen (GGeRA) (old) | |||||||||||||||
Location: | Lampoldshausen | |||||||||||||||
Institutes and Institutions: | Institute of Space Propulsion Institute of Space Propulsion > Rocket Propulsion Institute of Space Propulsion > Rocket Propulsion Technology Institute of Space Propulsion > Propellants Institute of Space Propulsion > Chemical Propellant Technology | |||||||||||||||
Deposited By: | Stützer, Dr. Robert | |||||||||||||||
Deposited On: | 31 Mar 2021 08:12 | |||||||||||||||
Last Modified: | 28 Jun 2021 07:50 |
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