Spacecraft fire-safety strategy emphasizes prevention, mostly through the selection of onboard items classified accord- ing to their fire resistance. The principal NASA acceptance tests described in this paper assess the flammability of materials and components under 'worst-case' normal-gravity conditions of upward flame spread in controlled-oxygen atmospheres. Tests conducted on the ground, however, cannot duplicate the unique fire characteristics in the nonbuoyant low-gravity environment of orbiting spacecraft. Research shows that flammability an fire-spread rates in low gravity are sensitive to forced convection (ventilation flows) and atmospheric-oxygen concentration. These research results are helping to define new material-screening test methods that will better evaluate material performance in spacecraft.


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    Titel :

    Testing and Selection of Fire-Resistant Materials for Spacecraft Use


    Beteiligte:
    R. Friedman (Autor:in) / B. Jackson (Autor:in) / S. Olson (Autor:in)

    Erscheinungsdatum :

    2000


    Format / Umfang :

    20 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Spacecraft Fire Suppression: Testing and Evaluation

    A. Abbud-Madrid / J. T. McKinnon / J. P. Delplanque et al. | NTIS | 2004


    Spacecraft Fire Suppression: Testing and Evaluation

    Abbud-Madrid, Angel / McKinnon, J. Thomas / Delplanque, Jean-Pierre et al. | NTRS | 2004


    Materials testing for spacecraft use

    Park, J.J. | Tema Archiv | 1979


    Spacecraft Fire Safety

    Margle, Janice M. | NTRS | 1987