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Recycling and source reduction for long duration space habitationA direct mathematical approach has been established for characterizing the performance of closed-loop life support systems. The understanding that this approach gives clearly illustrates the options available for increasing the performance of a life support system by changing various parameters. New terms are defined and utilized, such as Segregation Factor, Resource Recovery Efficiency, Overall Reclamation Efficiency, Resupply Reduction Factor, and Life Support Extension Factor. The effects of increases in expendable system supplies required due to increases in life support system complexity are shown. Minimizing resupply through increased recycling and source reduction is illustrated. The effects of recycling upon resupply launch cost is also shown. Finally, material balance analyses have been performed based on quantity and composition data for both supplies and wastes, to illustrate the use of this approach by comparing ten different closed-loop life support system cases.
Document ID
19930057316
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hightower, T. M.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1992
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 921121
Meeting Information
Meeting: SAE, International Conference on Environmental Systems
Location: Seattle, WA
Country: United States
Start Date: July 13, 1992
End Date: July 16, 1992
Sponsors: SAE
Accession Number
93A41313
Distribution Limits
Public
Copyright
Other
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