This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Subscale Testbed for Characterizing Regenerable Adsorbents used in Air Revitalization of Spacecraft Atmospheres
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 12, 2009 by SAE International in United States
Annotation ability available
A sub-scale testbed for characterizing the dynamic performance of regenerable adsorbents for filtering trace contaminants (TCs) from cabin atmospheres was built and tested. Regenerable adsorbents employed in pressure-swing adsorption (PSA) systems operate in a dynamic environment, where they undergo repeated loading / regeneration cycles. Adsorbents have a given chemical specificity for non-methane TCs depending on their composition, and on the humidity and temperature at which they operate. However, their ability to filter TCs is also affected by contact time, cycle time, regeneration vacuum quality and thermal conditioning. The test stand supplies gases of known composition and humidity to an adsorbent bed during the loading half-cycle, and allows automated sampling of inlet (pre-bed) and outlet (post-bed) gas concentrations by a gas chromatograph (GC) and a CO2 analyzer, The filter bed is designed for vacuum swing regeneration during short cycles (6 min) using high quality (<0.5 torr) vacuum. The test stand will be used to catalog the chemical specificity and dynamic performance of candidate adsorbents for future atmosphere revitalization (AR) technologies using environmental ranges (e.g. relative humidities, temperatures, and target TC loads) found in manned spacecraft.
CitationMonje, O., Kenny, P., Sexson, N., Brosnan, B. et al., "Subscale Testbed for Characterizing Regenerable Adsorbents used in Air Revitalization of Spacecraft Atmospheres," SAE Technical Paper 2009-01-2526, 2009, https://doi.org/10.4271/2009-01-2526.
- Carrasquillo, R.L. “ ISS ECLSS Technology Evolution for Exploration,” American Institute of Aeronautics and Astronautics January 2005
- Karbiwnyk, C. Mills, C. Helmig, D. Birks, J. 2002 Minimization of water vapor interference in the analysis of non-methane volatile organic compounds by solid adsorbent sampling Journal of Chromatography A 958 219 229
- Knox J.C. Tabb D. Whitley K. Howard D. Fulda P. Miller L. Development and testing of a sorbent-based atmosphere revitalization system for the crew exploration vehicle 2006/2007 SAE Paper 2007-01-3254
- Monje, O Richards J.T. Eraso I. Griffin T.P. Anderson K.C. Sager J.C. 2005 Designing a reusable ethylene filter cartridge for plant hardware: Characterization of thermally desorbing compounds SAE Paper 2005-01-2953
- Monje, O. Eraso I. O'Keeffe C. Wheeler RM 2007 Testbed for determining the filtering capacities of COTS adsorbents SAE Paper 2007-01-3137
- Nalette T. Papale, W. Smith. F. Development status of the carbon Dioxide and moisture removal amine swing-bed (CAMRAS) SAE Paper 2007-01-3157
- Perry, J.L. Carrasquillo, R.L. Harris. D.W. 2006 Atmosphere Revitalization Technology Development for Crewed Space Exploration 44th AIAA Aerospace Sciences Meeting and Exhibit
- Roychoudhury, S Walsh, D Perry J 2005 Resistively-Heated Microlith-Based Adsorber for Carbon Dioxide and Trace Contaminant Removal SAE Paper 2005-01-2866