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Life support system definition for a low cost shuttle launched space station.Discussion of the tradeoffs and EC/LS definition for a low cost shuttle launched space station to be launched in the late 1970s for use as a long-term manned scientific laboratory. The space station consists of 14-ft-diam modules, clustered together to support a six-man crew at the initial space station (ISS) level and a 12-man crew at the growth space station (GSS) level. Key design guidelines specify low initial cost and low total program cost and require two separate pressurized habitable compartments with independent lift support capability. The methodology used to select the EC/LS design consisted of systematically reducing quantitative parameters to a common denominator of cost. This approach eliminates many of the inconsistencies that can occur in such decision making. The EC/LS system selected is a partially closed system which recovers urine, condensate, and wash water and concentrates crew expired CO2 for use in a low thrust resistojet propulsion system.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Nelson, W. G.
Cody, J.
(NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 6, 2013
Publication Date
August 1, 1972
Subject Category
Report/Patent Number
Meeting Information
Meeting: American Society of Mechanical Engineers, Environmental Control and Life Support Systems Conference
Location: San Francisco, CA
Start Date: August 14, 1972
End Date: August 16, 1972
Sponsors: American Society of Mechanical Engineers
Accession Number
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