Difference between Flywheel and Governor
FLYWHEEL
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GOVERNOR
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1.Function- To control the speed variations caused by fluctuations of engine turning moment during a cycle.
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1.Function- To regulate the mean speed of engine within prescribed limit when there are variations of load.
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2. Flywheel acts as a reservoir; it stores energy due to its mass moment of inertia and releases energy when required during a cycle.
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2. A governor regulates the speed by regulating the quantity of charge/working fluid of prime mover.
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3.It regulates speed in one cycle only
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3. It regulates speed over a period of time.
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4.Flywheel has no control over supply of fluid/charge
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4. Governor takes care of quantity of fluid
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5. It is not an essential element of every prime mover. It is used when there are undesirable cyclic fluctuations.
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5. It is an essential element of prime mover since varying demand of power is met by it.
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6. Mathematically it controls δN/δt
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6. Mathematically it controls δN
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