This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Post-Flight Sampling and Loading Characterization of Trace Contaminant Control Subassembly Charcoal
Technical Paper
2003-01-2487
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Trace chemical contaminants produced by equipment offgassing and human metabolic processes are removed from the atmosphere of the International Space Station's U.S. Segment by a trace contaminant control subassembly (TCCS). The TCCS employs a combination of physical adsorption, thermal catalytic oxidation, and chemical adsorption processes to accomplish its task. A large bed of granular activated charcoal is a primary component of the TCCS. The charcoal contained in this bed, known as the charcoal bed assembly (CBA), is expendable and must be replaced periodically. Pre-flight engineering analyses based upon TCCS performance testing results established a service life estimate of 1 year. After nearly 1 year of cumulative in-flight operations, the first CBA was returned for refurbishment. Charcoal samples were collected and analyzed for loading to determine the best estimate for the CBA's service life. A history of in-flight TCCS operations is presented as well as a discussion of the charcoal sampling procedures and chemical analysis results. A projected service life derived from the observed charcoal loading is provided.
Authors
Topic
Citation
Perry, J., Cole, H., Cramblitt, E., El-Lessy, H. et al., "Post-Flight Sampling and Loading Characterization of Trace Contaminant Control Subassembly Charcoal," SAE Technical Paper 2003-01-2487, 2003, https://doi.org/10.4271/2003-01-2487.Also In
References
- Perry, J.L. Curtis, R.E. Alexandre, K.L. Ruggiero, L.L. Shtessel, N. Performance Testing of a Trace Contaminant Control Subassembly for the International Space Station SAE 981621 . 28 th International Conference on Environmental Systems Society of Automotive Engineers Warrendale, PA July 1998 1 3
- Wright, J.D. Chen, B. Wang, C.M. Trace Contaminant Oxidation Catalyst Poisoning Investigation TDA Research, Inc. Wheat Ridge, CO March 22 1996 21 46
- Tatara, J.D. Perry, J.L. International Space Station Alpha Trace Contaminant Control Subassembly Life Test Final Report NASA Marshall Space Flight Center: MSFC Alabama March 1995
- Perry, J.L. Trace Contaminant Control Subassembly Catalytic Oxidizer Challenge Testing with Octafluoropropane and Estimation of Sorbent Bed Assembly Service Life NASA Marshall Space Flight Center: MSFC Alabama March 4 2002 5 7
- Leban, M.I. TCCS Contaminant Removal Performance Engineering Memorandum TCC-0084B Lockheed Martin Sunnyvale, CA August 14 1995 5
- Wright, J.D. Chen, B. Wang, C.M. Trace Contaminant Oxidation Catalyst Poisoning Investigation TDA Research, Inc. Wheat Ridge, CO March 22 1996 21 46
- Tatara, J.D. Perry, J.L. Franks, G.D. International Space Station System-Level Trace Contaminant Injection Test NASA Marshall Space Flight Center: MSFC Alabama March 1999 25 28 148 158
- Trace Contaminant Control Subassembly Development Unit System Functional Test Report Lockheed Missiles and Space Co, Inc. Sunnyvale, CA July 29 1992 16
- Perry, J.L. Elements of Spacecraft Cabin Air Quality Control Design NASA Marshall Space Flight Center: MSFC Alabama May 1998 51 56
- Curtis, R.E. Trace Contaminant Control Subassembly Performance Confirmation Test Report Boeing Defense and Space Group Huntsville, Alabama May 15 1998