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Designing for human presence in space: An introduction to environmental control and life support systemsHuman exploration and utilization of space requires habitats to provide appropriate conditions for working and living. These conditions are provided by environmental control and life support systems (ECLSS) that ensure appropriate atmosphere composition, pressure, and temperature; manage and distribute water, process waste matter, provide fire detection and suppression; and other functions as necessary. The functions that are performed by ECLSS are described and basic information necessary to design an ECLSS is provided. Technical and programmatic aspects of designing and developing ECLSS for space habitats are described including descriptions of technologies, analysis methods, test requirements, program organization, documentation requirements, and the requirements imposed by medical, mission, safety, and system needs. The design and development process is described from initial trade studies through system-level analyses to support operation. ECLSS needs for future space habitats are also described. Extensive listings of references and related works provide sources for more detailed information on each aspect of ECLSS design and development.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Reference Publication (RP)
Wieland, Paul
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1994
Subject Category
Man/System Technology And Life Support
Report/Patent Number
NAS 1.61:1324
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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