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Heat Exchanger/Humidifier Trade Study and Conceptual Design for the Constellation Space Suit Portable Life Support System Ventilation SubsystemAs development of the Constellation Space Suit Element progresses, designing the most effective and efficient life support systems is critical. The baseline schematic analysis for the Portable Life Support System (PLSS) indicates that the ventilation loop will need some method of heat exchange and humidification prior to entering the helmet. A trade study was initiated to identify the challenges associated with conditioning the spacesuit breathing gas stream for temperature and water vapor control, to survey technological literature and resources on heat exchanger and humidifiers to provide solutions to the problems of conditioning the spacesuit breathing gas stream, and to propose potential candidate technologies to perform the heat exchanger and humidifier functions. This paper summarizes the results of this trade study and also describes the conceptual designs that NASA developed to address these issues.
Document ID
20090010072
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Paul, Heather L.
(NASA Johnson Space Center Houston, TX, United States)
Sompayrac, Robert
Conger, Bruce
Chamberlain, Mateo
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Man/System Technology And Life Support
Report/Patent Number
JSC-17765
09ICES-131
Meeting Information
Meeting: International Conference on Environmental Systems
Location: Savannah, GA
Country: United States
Start Date: July 12, 2009
End Date: July 16, 2009
Sponsors: Society of Automotive Engineers, Inc.
Funding Number(s)
WBS: WBS 903184.04.02.03.02
Distribution Limits
Public
Copyright
Other

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