The Orbital Syngas/Commodity Augmentation Reactor (OSCAR) project investigated hardware and engineering development for waste conversion operations related to trash deconstruction and repurposing for long duration space missions. Operations of the trash-to-gas system were investigated to compare microgravity (μg) and Earth gravity environments. The OSCAR system has been demonstrated in other μg platforms, but here the performance and results on the Blue Origin New Shepard Suborbital Vehicle are discussed. The OSCAR suborbital operation demonstrated the introduction of trash into a high temperature reactor for solid to gas conversion, ignition of mixed trash feedstock, combustion during μg, and subsequent gas collection processes in a flight automated sequence. An oxygen (O2)- and steam-rich environment was created within the reactor for ignition conditions, and the product gases were quantified to verify the reaction product composition. This paper focuses on the chemistry processes of the reactor, and gas and solid product analysis of the μg and gravity conditions. The gas production, reactor thermal profile, and mass and carbon conversion results validated confidence in the system design to continue the advancement of this technology for future spaceflight implementations.
Autonomous control systems provide the ability of self-governance beyond the conventional control system. As the complexity of systems increases, there is a natural drive for developing robust control systems to manage complicated and emergency operations. By closing the bridge between conventional automated systems and knowledge based self-aware systems, nominal control of operations can evolve into relying on safety critical mitigation processes to support any off-nominal behavior. Current research and development efforts lead by the Autonomous Propellant Loading (APL) project at NASA Kennedy Space Center aims to improve cryogenic propellant transfer operations by developing an automated control and health monitoring system. As an integrated system, the center aims to produce an Autonomous Operations System (AOS) capable of integrating health management operations with automated control to produce a fully autonomous system.
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