Engineering Challenge:
Design a highly efficient, mobile electric flywheel capable of high-density energy storage that can supplement the power of internal combustion engines in hybrid electric vehicles during acceleration or other periods of high energy demand, resulting in fuel savings.
Design Solution:
Make the flywheel’s central rotor from a magnetically loaded glass fiber composite backed by a carbon fiber layer, then mount the rotor in a vacuum, resulting in a flywheel with low eddy-current losses capable of delivering up to 150 kW of power to a vehicle’s drivetrain in short 6- to 8-second bursts.
Composite flywheel: HEV racing dynamo : Composites World
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