NDLI: Assessment of service life for regenerative eclss resin beds

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Assessment of service life for regenerative eclss resin beds

Content Provider	NASA Technical Reports Server (NTRS)
Author	Keilich, Maria C. Cloud, Dale L. Yanczura, Stephen J. Polis, Peter C.
Copyright Year	2013
Description	The International Space Station (ISS) Water Processor Assembly (WPA) and Oxygen Generation Assembly (OGA) manage and process water at various levels of cleanliness for multiple purposes. The effluent of theWPA and the influent of the OGA require water at very high levels of purity. The bulk of the water purification that occurs in both systems is performed by consumable activated carbon and ion exchange resin beds. Replacement beds must be available on orbit in order to continue the ISS critical processes of water purification and oxygen generation. Various hurdles exist in order to ensure viable spare resin beds. These include the characteristics of resin beds such as: storage environment, shelf life requirements, microbial growth, and variations in the levels and species of contaminants the beds are required to remove. Careful consideration has been given to match water models, bed capacities and spares traffic models to ensure that spares are always viable. The results of these studies and considerations, in particular, how shelf life requirements affect resin bed life management, are documented in this paper.
File Size	972451
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140002692
Archival Resource Key	ark:/13960/t2v45qm61
Language	English
Publisher Date	2013-07-14
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Service Life Water Treatment Microorganisms International Space Station Storage Stability Activated Carbon Effluents Ion Exchange Resins Resins Oxygen Production Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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