# Flywheel sizing
# Scope: Energy released by a fixed-inertia rotor slowing down.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

inertia = 0.5 kg*m^2
highSpeed = 1000 rpm
lowSpeed = 800 rpm

energy := inertia*(highSpeed^2-lowSpeed^2)/2 [J]

check energy target: energy >= 900 J

scenario alternative: inertia = 0.4 kg*m^2