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Air Evaporation closed cycle water recovery technology - Advanced energy saving designsThe Air Evaporation water recovery system is a visible candidate for Space Station application. A four-man Air Evaporation open cycle system has been successfully demonstrated for waste water recovery in manned chamber tests. The design improvements described in this paper greatly enhance the system operation and energy efficiency of the air evaporation process. A state-of-the-art wick feed design which results in reduced logistics requirements is presented. In addition, several design concepts that incorporate regenerative features to minimize the energy input to the system are discussed. These include a recuperative heat exchanger, a heat pump for energy transfer to the air heater, and solar collectors for evaporative heat. The addition of the energy recovery devices will result in an energy reduction of more than 80 percent over the systems used in earlier manned chamber tests.
Document ID
Document Type
Conference Paper
Morasko, Gwyndolyn
(AiResearch Manufacturing Co. Torrance, CA, United States)
Putnam, David F.
(Umpqua Research Co. Myrtle Creek, OR, United States)
Bagdigian, Robert
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 860987
Accession Number
Distribution Limits

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