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OCAM - A CELSS modeling tool: Description and resultsControlled Ecological Life Support System (CELSS) technology is critical to the Space Exploration Initiative. NASA's Kennedy Space Center has been performing CELSS research for several years, developing data related to CELSS design. We have developed OCAM (Object-oriented CELSS Analysis and Modeling), a CELSS modeling tool, and have used this tool to evaluate CELSS concepts, using this data. In using OCAM, a CELSS is broken down into components, and each component is modeled as a combination of containers, converters, and gates which store, process, and exchange carbon, hydrogen, and oxygen on a daily basis. Multiple crops and plant types can be simulated. Resource recovery options modeled include combustion, leaching, enzyme treatment, aerobic or anaerobic digestion, and mushroom and fish growth. Results include printouts and time-history graphs of total system mass, biomass, carbon dioxide, and oxygen quantities; energy consumption; and manpower requirements. The contributions of mass, energy, and manpower to system cost have been analyzed to compare configurations and determine appropriate research directions.
Document ID
19930057416
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Drysdale, Alan
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Thomas, Mark
(NASA John F. Kennedy Space Center Cocoa Beach, FL, United States)
Fresa, Mark
(McDonnell Douglas Space Systems Co. Cocoa Beach, FL, United States)
Wheeler, Ray
(NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1992
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 921241
Meeting Information
Meeting: SAE, International Conference on Environmental Systems
Location: Seattle, WA
Country: United States
Start Date: July 13, 1992
End Date: July 16, 1992
Sponsors: SAE
Accession Number
93A41413
Distribution Limits
Public
Copyright
Other

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