Development of Electric and Chemical Microthrusters

Author:

Tajmar M.12ORCID,Scharlemann C. A.2

Affiliation:

1. Department of Aerospace Engineering, KAIST, Daejeon 305-701, Republic of Korea

2. Aerospace Engineering Department, University of Applied Sciences at Wiener Neustadt, 2700 Wiener Neustadt, Austria

Abstract

The increasing application of microsatellites (from 10 kg up to 100 kg) as well as CubeSats for a rising number of various missions demands the development of miniaturized propulsion systems. Fotec and The University of Applied Sciences at Wiener Neustadt is developing a number of micropropulsion technologies including both electric and chemical thrusters targeting high performance at small scales. Our electric propulsion developments include a series of FEEP (field emission electric propulsion) thrusters, of which the thrust ranges fromμN to mN level. The thrusters are highly integrated into clusters of indium liquid-metal-ion sources that can provide ultralow thrust noise and long-term stability. We are also developing a micro PPT thruster that enables pointing capabilities for CubeSats. For chemical thrusters, we are developing novel micromonopropellant thrusters with several hundred mN as well as a 1–3 N bipropellant microrocket engine using green propellants and high specific impulse performance. This paper will give an overview of our micropropulsion developments at Fotec, highlighting performance as well as possible applications.

Publisher

Hindawi Limited

Subject

Aerospace Engineering

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