Phoenix Business Daily

What is the moment of inertia of the flywheel?

An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.8MJ when the flywheel is rotating at 1.1×104 revolutions per minute. What is the moment of inertia of the flywheel? (answer in kg*m^2)

Public Comments

1. E = 1/2 I w*2 hence I = 2E/w*2 I = 2 x 3.8 x 1000000/(2 x 3.14 x 1.1 x 10000)*2 I = 1.87*10^-3