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Plant growth and mineral recycle trade-offs in different scenarios for a CELSSData for hydroponic plant growth in a manned system test is combined with nutritional recommendations to suport trade-off calculations for closed and partially closed life support system scenarios. Published data are used as guidelines for the masses of mineral nutrients needed for higher plant production. The results of calculations based on various scenarios are presented for various combinations of plant growth chamber utilization and fraction of mineral recycle. Estimates are made of the masses of material needed to meet human nutritional requirements in the various scenarios. It appears that food production from a plant growth chamber with mineral recycle is favorable to reduction of the total launch weight in missions exceeding 3 years.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Ballou, E. V.
(San Jose State Univ. CA, United States)
Wydeven, T.
(San Jose State University San Jose, CA, United States)
Spitze, L. A.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 11, 2013
Publication Date
July 1, 1982
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 820855
Accession Number
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