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Development Status of the International Space Station Urine Processor AssemblyNASA, Marshall Space Flight Center (MSFC) is developing a Urine Processor Assembly (UPA) for the International Space Station (ISS). The UPA uses Vapor Compression Distillation (VCD) technology to reclaim water from pre-treated urine. This water is further processed by the Water Processor Assembly (WPA) to potable quality standards for use on the ISS. NASA has developed this technology over the last 25-30 years. Over this history, many technical issues were solved with thousands of hours of ground testing that demonstrate the ability of the UPA technology to reclaim water from urine. In recent years, NASA MSFC has been responsible for taking the UPA technology to "flight design" maturity. This paper will give a brief overview of the UPA design and a status of the major design and development efforts completed recently to mature the UPA to a flight level.
Document ID
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Holder, Donald W.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Hutchens, Cindy F.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2003
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
SAE Paper 2003-01-2690
Meeting Information
Meeting: 33rd International Conference on Environmental Conference on Environmental Systems
Location: Vancouver, BC
Country: Canada
Start Date: July 7, 2003
End Date: July 11, 2003
Distribution Limits
Public Use Permitted.
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