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First Human Testing of the Orion Atmosphere Revitalization Technology
Technical Paper
2009-01-2456
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A system of amine-based carbon dioxide (CO2) and water vapor sorbent in pressure-swing regenerable beds has been developed by Hamilton Sundstrand and is baselined for the Orion Atmosphere Revitalization System (ARS). In two previous years at this conference, reports were presented on extensive Johnson Space Center (JSC) testing of the technology, which was performed in a representative environment with simulated human metabolic loads. The next step in developmental testing at JSC was to use real human loads in the spring of 2008. This first instance of human testing of a new Orion ARS technology included several cases run in a sealed Orion-equivalent free volume and three cases using emergency breathing masks connected directly to the ARS loop, Significant test results presented in this paper include a comparison between the standard metabolic rates for CO2 and water vapor production published in Orion requirements documents and metabolic rate ranges observed with the human test subjects. Qualitative assessments of the tolerability of various process flow rates and closed-loop pressure-cycling while using the emergency masks are also included. Recommended modifications to the Orion ARS design and operation conclude the paper.
Citation
Lin, A. and Sweterlitsch, J., "First Human Testing of the Orion Atmosphere Revitalization Technology," SAE Technical Paper 2009-01-2456, 2009, https://doi.org/10.4271/2009-01-2456.Also In
References
- Lin, A., “CCSIT Phase 1 Quick-Look Test Report: CAMRAS Performance” JSC-64330 NASA Johnson Space Center Houston, Texas 2008
- NASA “Constellation Program Human-Systems Integration Requirements” CxP 70024 2007
- Lin, A., “CO 2 And Moisture Removal Amine Swing-bed (CAMRAS) Phase 1/2/3 Final Test Report” JSC-64154 NASA Johnson Space Center Houston, Texas 2008
- Alduchov, O. Eskridge, R. “Improved Magnus Form Approximation of Saturation Water Vapor Pressure” Journal of Applied Meteorology, v. 35 iss. 4 601 1996