Research on Efficient Heat Transfer for Air Breathing Electric Propulsion

Abstract

Air-breathing electric propulsion systems have been studied to extend the life of satellites in low Earth orbit. However, the composition of the atmosphere in low Earth orbit is so complex and the flight speed so high that it is difficult to apply current electric propulsion systems. Therefore, a more detailed understanding of the characteristics of air plasma is needed to develop this new engine. In this study, aiming at the application to MPD thrusters with high exhaust velocity, experiments were first conducted at ground atmospheric pressure using an arcjet thruster to generate air plasma and to evaluate it. The experimental and simulation results indicated that there may be an electrode configuration that can accelerate exhaust velocity more efficiently.