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Performance of the Extravehicular Mobility Unit (EMU): Airlock Coolant Loop Recovery (A/L CLR) Hardware - Phase IIAn EMU water processing kit (Airlock Coolant Loop Recovery A/L CLR) was developed as a corrective action to Extravehicular Mobility Unit (EMU) coolant flow disruptions experienced on the International Space Station (ISS) in May of 2004 and thereafter. Conservative schedules for A/L CLR use and component life were initially developed and implemented based on prior analysis results and analytical modeling. The examination of postflight samples and EMU hardware in November of 2006 indicated that the A/L CLR kits were functioning well and had excess capacity that would allow a relaxation of the initially conservative schedules of use and component life. A relaxed use schedule and list of component lives was implemented thereafter. Since the adoption of the relaxed A/L CLR schedules of use and component lives, several A/L CLR kit components, transport loop water samples and sensitive EMU transport loop components have been examined to gage the impact of the relaxed requirements. The intent of this paper is to summarize the findings of that evaluation, and to outline updated schedules for A/L CLR use and component life.
Document ID
20090002584
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Steele, John
(Hamilton Sundstrand Corp. United States)
Rector, tony
(Hamilton Sundstrand Corp. United States)
Gazda, Daniel
(Wyle Labs., Inc. United States)
Lewis, John
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Man/System Technology And Life Support
Meeting Information
Meeting: 39th 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.
Distribution Limits
Public
Copyright
Other

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