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Analysis of an algae-based CELSS. I - Model developmentA steady state chemical model and computer program have been developed for a life support system and applied to trade-off studies. The model is based on human demand for food and oxygen determined from crew metabolic needs. The model includes modules for water recycle, waste treatment, CO2 removal and treatment, and food production. The computer program calculates rates of use and material balance for food, O2, the recycle of human waste and trash, H2O, N2, and food production/supply. A simple noniterative solution for the model has been developed using the steady state rate equations for the chemical reactions. The model and program have been used in system sizing and subsystem trade-off studies of a partially closed life support system.
Document ID
19890056925
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Holtzapple, Mark T.
(Texas A&M Univ. College Station, TX, United States)
Little, Frank E.
(Texas A&M Univ. College Station, TX, United States)
Makela, Merry E.
(Texas A&M Univ. College Station, TX, United States)
Patterson, C. O.
(Texas A & M University College Station, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1989
Publication Information
Publication: Acta Astronautica
Volume: 19
ISSN: 0094-5765
Subject Category
Man/System Technology And Life Support
Accession Number
89A44296
Funding Number(s)
CONTRACT_GRANT: NAG9-161
Distribution Limits
Public
Copyright
Other

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