NASA NTRS · 19920048764
Advanced air revitalization for optimized crew and plant environments
Abstract
The Hybrid Air Revitalization System (HARS) closed ecosystem concept presented encompasses electrochemical CO2 and O2 separators, in conjunction with a mechanical condenser/separator for maintaining CO2, O2, and humidity levels in crew and plant habitats at optimal conditions. HARS requires no expendables, and allows flexible process control on the bases of electrochemical cell current, temperature, and airflow rate variations. HARS capacity can be easily increased through the incorporation of additional chemical cells. Detailed system flowcharts are provided.
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Lee, M. G., Grigger, David J., Brown, Mariann F.. 1991-01-01. Advanced air revitalization for optimized crew and plant environments. https://ntrs.nasa.gov/citations/19920048764
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