Conventional chemical rocket propulsion systems use standard propellant compositions: hydrazine and its derivative – monomethyl hydrazine (MMH), combined with mixed oxides of nitrogen (MON). The number of activities worldwide focus on development of components and subsystems of green propulsion – the alternative for standard solutions containing toxic propellants. The aim of GRACE II is further development of a major subsystem for GEO satellite propulsion – LAE (Liquid Apogee Engine). The role of this thruster is to provide extra velocity for the final orbit insertion. The engine uses hydrogen peroxide in very high concentration as the oxidizer, combined with reduced-toxicity fuel. This is a high-performance propellant composition, providing specific impulse in a similar level as MON/MMH. The implementation of alternative, non-toxic propellants may lead to develop a new, green propulsion system, affecting reduction of the GOSM (Ground Operation and Safety Management) cost. The Technology Readiness Level – TRL 3, reached in the framework of GRACE I, is currently being increased to TRL 5. It means that the laboratory verified concept will be developed to a functional, flight-like technology demonstrator.
Project leader: Paweł Surmacz
Phone: (+ 48) 22 188 37 98
E-mail: pawel.surmacz@ilot.lukasiewicz.gov.pl
Date: 19.11.2019 – 18.05.2022
Funding institution: ESA – European Space Agency
Programme: NMS-Poland
Consortium: Łukasiewicz Research Network – Institute of Aviation (Poland) Deutsches Zentrum für Luft und Raumfahrt e.V (DRL) (Germany)
