A flywheel energy storage system was spun to 60,000 rpm while levitated on magnetic bearings. This system is being developed as an energy-efficient replacement for chemical battery systems. Used in groups, the flywheels can have two functions providing attitude control for a spacecraft in orbit as well as providing energy storage. The first application for which the NASA Glenn Research Center is developing the flywheel is the International Space Station, where a two-flywheel system will replace one of the nickel-hydrogen battery strings in the space station's power system. The 60,000-rpm development rotor is about one-eighth the size that will be needed for the space station (0.395 versus 3.07 kWhr).


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    Title :

    Flywheel Energy Storage Technology Being Developed


    Contributors:
    F. J. Wolff (author)

    Publication date :

    2001


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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