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The equation 2(ω1 − ω2) / (ω1 + ω2) represents the _________.

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NHPC JE Mechanical 6 April 2022 (Shift 1) Official Paper
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  1. coefficient of friction for flywheel
  2. mean speed of the flywheel
  3. maximum fluctuation
  4. coefficient of fluctuation of speed

Answer (Detailed Solution Below)

Option 4 : coefficient of fluctuation of speed
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Detailed Solution

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Explanation:

Maximum fluctuation of energy: The difference between the maximum and the minimum energies is known as a maximum fluctuation of energy.

ΔE = Emax - Emin

Coefficient of fluctuation of energy:

Coefficient of fluctuation of speed (CS):

Mass moment of inertia of the flywheel = I, Mean speed of the rotation = ω, Kinetic energy = E, Coefficient of fluctuation of speed = CS

The maximum fluctuation of energy:

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