This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Hybrid Air Revitalization System for a Closed Ecosystem
Annotation ability available
Sector:
Language:
English
Abstract
For future extended duration, manned missions, development of life support systems that require minimum expendables, power, weight and volume are essential. The ability to produce useful materials with minimum processing by using metabolic and life support byproducts is also of great importance. Life Systems, working with the National Aeronautics and Space Administration - Johnson Space Center, has been investigating various combinations of physical, chemical, electrochemical and biological methods for this purpose. (I)*
This paper describes a closed ecosystem air revitalization concept, called a Hybrid Air Revitalization System, that uses higher plants in a plant habitat for removing metabolic carbon dioxide and moisture for their photosynthesis while producing oxygen and supplemental food for crew consumption. The system includes Electrochemical Carbon Dioxide and Oxygen Separators and a moisture condenser/separator for maintaining carbon dioxide, oxygen, humidity and temperature levels in the crew and the plant habitats at their respective optimal conditions. This paper also presents the functional mechanisms of the separators, flow configurations and an example of system mass balance. Test results of one of the key components in the system, the Electrochemical Carbon Dioxide Separator (without using hydrogen), are also presented.
Authors
Citation
Lee, M. and Brown, M., "Hybrid Air Revitalization System for a Closed Ecosystem," SAE Technical Paper 901311, 1990, https://doi.org/10.4271/901311.Also In
Advanced Environmental/Thermal Control and Life Support Systems
Number: SP-0831; Published: 1990-07-01
Number: SP-0831; Published: 1990-07-01
References
- Lee, M. G. Grigger, D. J. “Advanced Electrochemical Carbon Dioxide Removal Process Study,” Final Report, Contract NAS9-17913, TR-1077B Life Systems, Inc. Cleveland, OH February 1990
- Bugbee, B. G. Salisbury, F. B. “Current and Potential Productivity of Wheat for a Controlled Environmental Life Support System,” NASA Conference Publication 10040 3 13 27th COSPAR Meeting Espoo, Finland July 1989
- Andre, M. Cotte, F. Gerbaud, A. Massimino, D. Massimino, J. Richaud, C. “Effect of CO 2 and O 2 on Development and Fructification of Wheat in Closed System,” NASA Conference Publication 10040 15 26 27th C0SPAR Meeting Espoo, Finland July 1989
- Bugbee, B. “Carbon Use Efficiency in Optimal Environments,” 19th Intersociety Conference on Environmental Systems SAE Paper No. 891572 San Diego, CA July 1989
- Wright, B. D. Garcia A. III, “CELSS Engineering: Proportional Control of CO 2 Using Higher Plants,” 19th Intersociety Conference on Environmental Systems, SAE Paper No. 891573 San Diego, CA July 1989
- Hill, W. A. Loretan, P. A. Bonsi, C. K. Morris, C. E. Lu, J. Y. Ogbuehi, C. Carver, G. W. “Utilization of Sweet Potatoes in CELSS,” NASA Conference Publication 10040 27 38 27th COSPAR Meeting Espoo, Finland July 1989
- Cullingford, H. S. Novara, M. “Conceptual Design of a Piloted Mars Spring Life Support System,” 18th Intersociety Conference on Environmental Systems, SAE Paper No. 881059 San Francisco, CA July 1988