Performance optimization of flywheel using experimental design approach

Abstract The flywheel is the simplest device for mechanical battery that can charge/discharge electricity by converting it into the kinetic energy of a rotating flywheel, and vice versa. The energy storage systems based on flywheel now arousing great interest, since this technology can offer great advantages in durability and lifetime. However, the flywheel performance rotation is limited by the strength of the materials, from which it is constructed, and the geometry. Greater control over those parameters could improve the development of high performance of a flywheel energy storage system (FESS). The main interest of this study is to demonstrate the influence degree of each parameter of geometry by using the mathematical method of design of experiments, in order to be able to optimize the adequate parameters for a high performed shape of the flywheel.