Storaged mechanical energy in electromecanical flywheels with different relations of carbon fiber as reinforcement

Abstract

The work presents a study focused on a specific type of inertia wheel, known as Flywheel, capable of accumulating kinetic energy when in motion. Computational analyzes were performed on the geometry and proportion of conjugate materials to the rotor in order to obtain the largest rotational energy accumulation. This study aims at analyzing a rotating inertia wheel at a rotational speed greater than 100,000 rpm, thus concentrating more energy and reducing material dimensions and costs. For this purpose, several types of inertia wheel geometries were created and simulated by the Finite Element Method, with the intention of verifying the behavior of the tensile strengths of the material at its high rotation speed. With these data, it was chosen the geometry and the material that together obtained the best performance for the development of an inertia wheel of low cost and high energy yield, with rotations obtained above 170,000 rpm.