Introduction


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Introduction
IntroductionA flywheel is a device with the form of a disk or cylinder, the rotor, capable of storing a significant amount of rotational energy. The ability of spinning objects to store kinetic energy has been known by mankind since the Neolithic age. Many are the applications over the centuries, from the realization of clay vases, to the use of flywheels in early agricultural tractors, to steam trains. When shafted to the electric motor/generator, the flywheel stores energy when the motor increases its angular speed, or releases energy to the generator when the latter acts as a brake to decrease the flywheel angular speed and provides electricity to the load. A flywheel energy storage system (FESS) is typically used whenever power is needed over a very short period of t…
Citation
Gabriele Zini: Green Electrical Energy Storage: Science and Finance for Total Fossil Fuel Substitution. Introduction, Chapter (McGraw-Hill Professional, 2016), AccessEngineering Export