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Emergency Oxygen System Evaluation for Exploration PLSS ApplicationsThe Portable Life Support System (PLSS) emergency oxygen system is being reexamined for the next generation of suits. These suits will be used for transit to Low Earth Orbit, the Moon and to Mars as well as on the surface of the Moon and Mars. Currently, the plan is that there will be two different sets of suits, but there is a strong desire for commonality between them for construction purposes. The main purpose of this paper is to evaluate what the emergency PLSS requirements are and how they might best be implemented. Options under consideration are enlarging the tanks on the PLSS, finding an alternate method of storage/delivery, or providing additional O2 from an external source. The system that shows the most promise is the cryogenic oxygen system with a composite dewar which uses a buddy system to split the necessary oxygen between two astronauts.
Document ID
20060022648
Acquisition Source
Johnson Space Center
Document Type
Preprint (Draft being sent to journal)
Authors
Heather, Paul
(NASA Johnson Space Center Houston, TX, United States)
Vonau, Walt, Jr.
(Jacobs Sverdrup Technology, Inc. Huntsville, AL, United States)
Conger, Bruce
(Hamilton Sundstrand Space Systems International, Inc. United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE-2006-01-2208
Distribution Limits
Public
Copyright
Other

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