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Spacesuit Water Membrane Evaporator Integration with the ISS Extravehicular Mobility UnitNASA has developed a Solid Water Membrane Evaporation (SWME) to provide cooling for the next generation spacesuit. The current spacesuit team has looked at this technology from the standpoint of using the ISS EMU to demonstrate the SWME technology while EVA, and from the standpoint of augmenting EMU cooling in the case of a fouled EMU cooling system. One approach to increasing the TRL of the system is to incorporate this hardware with the existing EMU. Several integration issues were addressed to support a potential demonstration of the SWME with the existing EMU. Systems analysis was performed to assess the capability of the SWME to maintain crewmember cooling and comfort as a replacement for sublimation. The materials of the SWME were reviewed to address compatibility with the EMU. Conceptual system placement and integration with the EMU via an EVA umbilical system to ensure crew mobility and Airlock egress were performed. A concept of operation for EVA use was identified that is compatible with the existing system. This concept is extensible as a means to provide cooling for the existing EMU. The cooling system of one of the EMUs on orbit has degraded, with the root cause undetermined. Should there be a common cause resident on ISS, this integration could provide a means to recover cooling capability for EMUs on orbit.
Document ID
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Margiott, Victoria
(Hamilton Sundstrand Space Systems International, Inc. Windsor Locks, CT, United States)
Boyle, Robert
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
April 23, 2014
Publication Date
January 1, 2014
Subject Category
Man/System Technology And Life Support
Report/Patent Number
Meeting Information
Meeting: International Conference on Environmental Systems
Location: Tuscon, AZ
Country: United States
Start Date: July 13, 2014
End Date: July 17, 2014
Sponsors: Texas Tech Univ.
Funding Number(s)
WBS: WBS 401769.
Distribution Limits
Public Use Permitted.
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