Tests have performed to determine the terrestrial conversion efficiency and operating temperature in space of a modular photovoltaic concentrator being developed under Air Force contract. Nine test modules were fabricated, each having a set of three mirrors mounted in a graphite composite frame. Each mirror was mechanically formed of beryllium-copper sheet stock into an offset parabolic cylinder. An active photovoltaic receiver, comprising two strings of three parallel-connected gallium arsenide cells, was mounted on the central portion of the middle mirror in each module. Tests performed under terrestrial illumination (AM1.5) indicated mean mirror-cell conversion efficiency of 16.4 % for silvered mirrors, and 14 % for aluminized mirrors at a 50 Cel temperature. Tests performed within a liquid-nitrogen shrouded vacuum chamber indicated a cell operating temperature of 90 Cel, which corresponds well to results of independent thermal analysis. Using these data, performance of kilowatt-sized units in space using beryllium-copper mirrors is projected to be 35 W/kg. Through substitution of aluminium substrates for copper, a specific power of up to 55 W/kg is achievable in this configuration.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Initial performance tests of SLATS photovoltaic concentrator modules


    Weitere Titelangaben:

    Anfangsleistungstests von SLATS-Sonnenzellen-Konzentrator-Modulen


    Beteiligte:
    Stern, T.G. (Autor:in)


    Erscheinungsdatum :

    1987


    Format / Umfang :

    3 Seiten, 7 Bilder, 1 Tabelle


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Assessment Of Advanced Concentrator Photovoltaic Modules

    Borden, C. S. / Schwartz, D. L. / Davisson, M. C. | NTRS | 1987



    Seat slats device

    LEE EUN HYUNG | Europäisches Patentamt | 2018

    Freier Zugriff


    Nanostructured surface for extended temperature operating range in concentrator photovoltaic modules

    Forcade, Gavin / Valdivia, Christopher E. / St-Pierre, Philippe et al. | TIBKAT | 2020