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An Efficient Air Evaporation Urine Processing System for Space Station
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English
Abstract
The inherent simplicity und reliability of air evaporation urine processing have been demonstrated in a number of system tests over the past 25 years. Although no flight-rated air evaporation systems have been built, the air evaporation approach has by far logged the most time in man-rated tests. Air evaporation offers additional inherent advantages such as near total water recovery and insentivity to intermittent operation. The principal disadvantage of simple-cycle air evaporator units built heretofore is their high energy requirement. An enhanced air evaporation configuration has been analyzed that incorporates a recuperator and an R12 heat pump for energy recovery. Performance is increased sufficiently to be competitive with alternative more complex processes. A parametric performance study was conducted in terms of major component efficiencies. Components were sized for an eight-man processing unit.
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Citation
Madsen, R. and Putnam, D., "An Efficient Air Evaporation Urine Processing System for Space Station," SAE Technical Paper 881034, 1988, https://doi.org/10.4271/881034.Also In
References
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- Morasko G. Putnam D. F. Bagdigian R. Air Evaporation Closed Cycle Water Recovery Technology - Advanced Energy Savings Designs 16th Intersociety Conf., Aerospace Environ. Systems San Diego, CA July 14-16 1986
- Prince R. N. et al. Challenges in the Development of the Orbiter Atmospheric Revilalizafion Subsystem Space Shuttle Technical Conference NASA JSC Houston Texas June 28-30 1983 414 425