The rotational inertia of a flywheel can be calculated using the formula I = (1/2)MR^2, where M is the mass of the flywheel and R is the radius of the flywheel.
The power required to turn a flywheel can be calculated using the formula P = (2πNT)/60, where N is the rotational speed of the flywheel in revolutions per minute (RPM) and T is the torque required to turn the flywheel.
The torque required to turn a flywheel can be determined by dividing the power required by the rotational speed of the flywheel, using the formula T = P/(2πN/60). It can also be calculated by multiplying the moment of inertia of the flywheel by its angular acceleration, using the formula T = Iα.
The power required to turn a flywheel is affected by the rotational speed, the moment of inertia, and the torque required. Other factors that may affect it include frictional forces and the weight of the flywheel.
The power required to turn a flywheel can be reduced by decreasing the rotational speed, reducing the moment of inertia, and minimizing frictional forces. Additionally, using a smaller or more efficient flywheel can also help reduce the power required.