Work

Requirements for air-breathing electric propulsion in low-altitude orbits

Year: 2024

Type: article

Abstract: This perspective overviews the requirements to operate air-breathing electric propulsion (ABEP) systems in low-altitude orbits. We highlight the needed scientific advancements to realize these technologies including innovations at the intersection of electric propulsion, gas dynamics, air chemistry, and material science. In addition, we describe specific scientific and technological challenges that constrain the operation of ABEP systems. These include the collection and compression of atmospheric propellant, producing enough thrust to counteract drag, generating and sustaining plasmas, satisfying the power requirements to maintain orbit, operating with minimal flow rates of propellant, passivating materials, and understanding the effects of air chemistry. Finally, we offer an outlook on the future of ABEP systems and how they can influence the optimization, efficiency, and capabilities of future missions in very low Earth orbit.

Source: Journal of Electric Propulsion

DOI: 10.1007/s44205-024-00095-w

Authors: Adrian Woodley, Ethan Horstman, Michael Keidar, Thomas C. Underwood

Institutions: The University of Texas at Austin, George Washington University

Language: English

Topic: Plasma Diagnostics and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $1,390

Funders: Defense Advanced Research Projects Agency, Advanced Research Projects Agency, Air Force Office of Scientific Research