Abstract A micro space power system using micro fuel cell was developed for nano-satellites. The power system was fabricated using microelectromechanical system (MEMS) fabrication technologies. Polymer electrolyte membrane (PEM) fuel cell was selected in consideration of space environment. Sodium borohydride (NaBH4) was selected as a hydrogen source while hydrogen peroxide (H2O2) was selected as an oxygen source. The power system consists of a micro fuel cell, micro-reactor, micro-pump, and fuel cartridges. The micro fuel cell was fabricated on a light-weight and corrosion-resistant glass plates. The micro-reactor was used to generate hydrogen from NaBH4 alkaline solution via a catalytic hydrolysis reaction. All components such as micro-pump, fuel cartridges, and auxiliary battery were integrated for a complete power system. The storability of NaBH4 solution was evaluated at −25°C and the performance of the micro power system was measured at various operating conditions. The power output of micro power system reasonably followed up the given electric load conditions.

    Highlights Micro space power system using micro fuel cell was developed for nanosatellites. The power system was fabricated using MEMS fabrication technologies. NaBH4 as a hydrogen source and H2O2 as an oxygen source were selected. Performance of the micro power system was measured at various conditions.


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    Titel :

    Micro space power system using MEMS fuel cell for nano-satellites


    Beteiligte:
    Lee, Jongkwang (Autor:in) / Kim, Taegyu (Autor:in)

    Erschienen in:

    Acta Astronautica ; 101 ; 165-169


    Erscheinungsdatum :

    2014-04-13


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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