A CELSS (Controlled Ecological Life Support System) is a device that utilizes photosynthetic organisms and light energy to regenerate waste materials into oxygen and food for a crew in space. The results of theoretical and practical studies conducted by investigators within the CELSS program suggest that a bioregenerative life support system can be a useful and effective method of regenerating consumable materials for crew sustenance. Experimental data suggests that the operation of a CELSS in space will be practical if plants can be made to behave predictably in the space environment. Much of the work currently conducted within the CELSS program centers on the biological components of the CELSS system. The work is particularly directed at ways of achieving high efficiency and long term stability of all components of the system. Included are explorations of the conversion of nonedible cellulose to edible materials, nitrogen fixation by biological and chemical methods, and methods of waste processing. It is the intent of the presentation to provide a description of the extent to which a bioregenerative life support system can meet the constraints of the space environment, and to assess the degree to which system efficiency and stability can be increased during the next decade.


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    Title :

    A review of recent activities in the NASA CELSS program


    Contributors:
    Macelroy, R. D. (author) / Tremor, J. (author) / Smernoff, D. T. (author) / Knott, W. (author) / Prince, R. P. (author)

    Published in:

    Publication date :

    1987-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    A review of recent activities in the NASA CELSS program

    MacElroy, R.D. / Tremor, J. / Smernoff, D.T. et al. | Elsevier | 1987


    Progress in European CELSS activities

    Skoog, A. I. | NTRS | 1987


    Progress in European CELSS activities

    Skoog, Å.I. | Elsevier | 1987


    Japan's Activities on CELSS in Space

    Kibe, S. / Suzuki, K. / American Astronomical Society | British Library Conference Proceedings | 1997


    Development of the CELSS Emulator at NASA JSC

    Cullingford, Hatice S. | SAE Technical Papers | 1989