Numerical study of a novel monolithic heat exchanger for electrothermal space propulsion
Numerical study of a novel monolithic heat exchanger for electrothermal space propulsion
- Neue Suche nach: Romei, F.
- Neue Suche nach: Grubisic, A.
- Neue Suche nach: Romei, F.
- Neue Suche nach: Grubisic, A.
Abstract Fully-coupled multiphysics simulations are applied to investigate a number of candidate heat exchanger materials in the Super-High Temperature Additively-Manufactured Resistojet (STAR) thruster. Two mission applications are considered: a low earth orbit (LEO) primary propulsion application and a secondary reaction control system (RCS) application of an all-electric geostationary (GEO) telecommunications platform. High-temperature operation provides a significant increase in specific impulse over the state-of-the-art Xenon-resistojets. Inconel 718 is investigated for moderate-performance for LEO applications, while pure tantalum and pure rhenium are examined for the extreme temperature high-performance GEO application. Simulations determine the attainable performance including heat transfer, Navier-Stokes continuum flow and Joule heating physics in both transient and steady state. Nozzle efficiency, heat exchanger efficiency, electrical characteristics and other key performance indicators are explored.
Dokumentinformationen
Numerical study of a novel monolithic heat exchanger for electrothermal space propulsion
Acta Astronautica ; 159 ; 8-16
2019-03-08
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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