storage system based on a flywheel?
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.1 MJ when the flywheel is rotating at 2.0×104 revolutions per minute.
What is the moment of inertia of the flywheel?
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- WiligelmoLv 74 weeks agoFavorite Answer
E = (1/2)Iω^2
ω = 2πf = 2π*2.0*10^4/60 = 2.094*10^3 rad/s
I = 2E/ω^2 = 2*3.1*10^6/(2.094^2*10^6)
Ι = 1.4 kg*m^2
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Looks Ok to me.