You are here:
Safety, Quality and Facility Management
Service & Links
Tasks of the Propellants Department
Besides the regular requirements to future propulsion systems, like increased thrust, specific impulse, flight range, speed and reliability, prospective propellants must be environmentally friendly, cost-effective and easy to use.
Satellite propulsions are still operated with liquid fuels, like dinitrogen tetroxide, hydrazine, mono-methyl hydrazine (MMH), asymmetric dimethyl hydrazine (ADMH); they are toxic but storable for extremely long periods and ensure stable propulsion features.
Gelled propellants are produced from liquid fuels and gelling agents. Once in a tank, i.e. in idle state, they change from solid into liquid state when shear stress is applied. This particular feature provides a combination of major advantages to gelled propellants for use in liquid and solid propellants.
Head of Department
Copyright © 2017 German Aerospace Center (DLR). All rights reserved.