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Development of a Regenerable Metal Oxide CO Removal System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 01, 1990 by SAE International in United States
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A regenerable metal oxide carbon dioxide (CO2) removal system was developed to replace the current means of a nonreusable chemical, lithium hydroxide, for removing the metabolic CO2 of an astronaut in a space suit. Testing indicates that a viable low-volume metal oxide concept can be used in the portable life support system for CO2 removal during Space Station extravehicular activity (EVA). A canister of nearly the same volume as that used for the Space Shuttle, containing 0.10 ft3 (2.8 liters) of silver-oxide-based pellets, was tested; test data analysis indicates that 0.18 ft3 (5.1 liters) of the metal oxide will result in an 8-hour EVA capability. The testing suggests that the metal oxide technology offers a low-volume approach for a reusable CO2 removal concept applicable for at least 40 EVA missions. The development and testing of the breadboard regeneration package is also described.
CitationCusick, R., "Development of a Regenerable Metal Oxide CO Removal System," SAE Technical Paper 901430, 1990, https://doi.org/10.4271/901430.
- Colombo G. V. “Study of CO 2 Absorbents for Extravehicular Activity,” NASA CR-114632 July 1973
- Nalette T. A. “Metal Oxide Regeneration Extravehicular Subsystem,” Final Report, MOR-5-001 May 1989