Development of Solid Amine CO ₂ Control Systems for Extended Duration Missions 840937

This paper briefly discusses the development history of solid amine CO₂ control systems, describes two distinct CO₂ control system concepts, and presents the performance characteristics for both system concepts. The first concept (developed under NASA Contract NAS9-13624) incorporates a solid amine canister, an automatic microprocessor controller, and an accumulator to collect CO₂ and to provide regulated CO₂ delivery to an oxygen recovery system. This system is currently operating in the Crew Systems Division's Advanced Life Support Development Laboratory (ALSDL). The second system concept (being developed under NASA Contract NAS9-16978) employs multiple solid amine canisters, an advanced automatic controller and system status display, the ability to regulate CO₂ delivery for oxygen recovery, and energy saving features that allow system operation at lower power levels than the first concept.