Water Reclamation - University Of Maryland · Water Reclamation ENAE 697 - Space Human Factors and Life Support U N I V E R S I T Y O F MARYLAND Types of Water • Potable water –
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Water Reclamation• Discussion of term project• Fundamentals of water reclamation• Water reclamation
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Term Project Design Elements• Life support analyses
– Air reclamation– Water recycling– Food provision - storage/processing/growth– Waste collection and management– Air ventilation and handling– External stores for life support consumables
• Other topics of interest or necessity
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Mechanics of Term Project• Submission in form of a briefing package (slides, not
prose)– Package used for 10-minute presentation– Full package (no page limit)
• Initial deadline: progress check Friday 4/21 (e-mail)– Whatever you have completed– Prioritize DRM, initial habitat configuration– Include cover page with names of team members– Will get feedback to support final submission on last day
of class 5/9
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
ISS Consumables BudgetConsumable Design Load
(kg/person-day)Oxygen 0.85Water (drinking) 1.6Water (in food) 1.15Water (clothes and dishes) 17.9Water (sanitary) 7.3Water (food prep) 0.75Food solids 0.62
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Resupply with Open Loop Life Support
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from Ewert, “Life Support System Technologies for NASA Exploration Systems” ARO Workshop on Base Camp Sustainability, Sept. 2007
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Effect of Regenerative Life Support• Open loop life support 100% resupply+ Waste water recycling 45%+ CO2 absorbent recycling 30%
+ O2 regenerate from CO2 20%
+ Food from wastes 10%+ Eliminate leakage 5%
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Types of Water• Potable water
– Drinking and food preparation– Organic solids < 500µg/liter
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
TIMES Schematic
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Thermoelectric Integrated Membrane Evaporation System
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Vacuum Compression Distillation Schematic
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
VCD Drum Distillation Schematic
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
VPCAR Schematic
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Vapor Phase Catalytic Ammonia Removal
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
VAPCAR Simplified Schematic
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
AES - Air Evaporation for Urine Treatment
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Water Distillation• Vapor Compression Distillation (VCD)
– 300 kg; 1.5 m3; 350 W (for 100 kg H2O processed per day)
• VAPCAR– 550 kg; 2.0 m3; 800 W (for 100 kg H2O processed per
day)• TIMES
– 350 kg; 1.2 m3; 850 W (for 100 kg H2O processed per day)
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Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Selected Design Parameters
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from Jones, “Breakeven Mission Durations for Physicochemical Recycling to Replace Direct Supply Life Support” ICES 2007-01-3221, International Conference on Environmental Systems, July 2007
Water Reclamation ENAE 697 - Space Human Factors and Life Support
U N I V E R S I T Y O FMARYLAND
Water System Design Parameters
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from Jones, “Mars Transfer Vehicle (MTV) Water Processor Analysis” ICES 2008-01-2193,International Conference on Environmental Systems, July 2008
Water Reclamation ENAE 697 - Space Human Factors and Life Support