Hence higher energy content can be achieved by increasing the moment of inertia or the revolution speed. The usage of magnetic bearings and vacuum environments enable high revolution speeds (up to 30,000 rpm to 60,000 rpm) and furthermore enable the decrease of losses as well as wear and tear. The maximum revolution speed is limited by mechanic tension inside the flywheel caused by centrifugal forces, calling for fiber-plastic composites.
Our research objective is to enhance the economic feasibility of kinetic energy storage systems by improving the energy- and power density as well as reducing energy losses and system complexity. Novel concepts are developed and tested in real-world applications.