Life Support Concepts for Space Travel II Raymond M. Wheeler Biological Sciences Branch Kennedy Space Center, FL |
Plants and Bioregenerative Life Support |
Slide 3 |
Testing with Plants and Algae for Life Support |
NASA Testing with Plants for Life Support |
Plants and Life Support: Some Background |
Early Studies Focused on
Algae and Cyanobacteria (1950s and 1960s) |
Observations from Algae Studies: |
Slide 9 |
Bioregenerative Life Support for Space: |
Testing with Higher
Plants and the CELSS Program |
Considerations for Selecting Crops |
Some Crops for Life Support |
Some Findings from NASA
Testing ¨ Recirculating Hydroponics with Agronomic Crops: |
Lettuce in Recirculating Hydroponics |
Essential Elements for Plants and Humans |
Porous Tube Watering System for Plants in Microgravity |
Some Findings from NASA
Testing ¨ High Yields from High Light and CO2 Enrichment : |
Effect of Light on Crop
Yield (Data from NASA Biomass Production Chamber) |
Effect of Light on Photosynthesis |
Slide 21 |
Some Findings from NASA
Testing ¨ Closed System Studies: |
Slide 23 |
CO2 Effects on Photosynthesis |
Plant Effects on CO2 and O2 Levels in a Closed System |
Some Findings from NASA
Testing ¨ Whole Canopy Gas Exchange: |
Some Findings from NASA
Testing ¨ Cultivar Selection and Development : |
Continuing Challenges: |
The Special Challenge of
Providing Light for Plants |
Electric Lamp Considerations |
High-Intensity Discharge Lamps for Plant Lighting |
Plant Requirements for Blue Light |
Slide 33 |
Waste Recycling with Biological Systems |
Plants for Water Purification |
Sodium Recycling in Closed Systems |
Biological Waste Processing Systems |
Waste Recycling / Aquaculture |
Constraints for Life
Support in Space: (ÒEconomicsÓ of Life Support) |