FLYWHEEL
- It is a device to control the variations in speed during each cycle of an engine.
- It serves as a reservoir, which stores energy during the period when the supply of energy is more than the requirement, and the releases, it during the period when the requirement of energy is more than the supply.
- During the period, when it absorbs energy, its speed increases and during the period when it releases energy, its speed decreases.
- The flywheel keeps the speed of the engine within the prescribed limits during each cycle.
Fluctuation of Energy:
The variations of energy above and below the mean resisting torque line are called fluctuations of energy.
Maximum Fluctuation of Energy:
The difference between the maximum and minimum energies is known as maximum fluctuation of energy.
Coefficient of Fluctuation of Energy:
It may be defined as the ratio of the maximum fluctuation of energy to the workdone per cycle.
Coefficient of Fluctuation of Speed:
- The difference between the maximum and minimum speeds during a cycle is called the minimum fluctuation of speed. The ratio of the maximum fluctuation of speed to the mean speed is called the coefficient of fluctuation of speed.
- The reciprocal of the coefficient of fluctuation of speed is known as coefficient of steadiness and is denoted by m.
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