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Flywheel's primary function is to store rotational energy and stabilize the speed of the machine it's integrated with. This function can be applied across many different sectors and industries. Here are a few specific applications:

1. Automobiles: In a car engine, the flywheel stores energy from the engine during combustion and releases it between combustions, which results in smoother engine operation. Flywheels are also being researched for use in hybrid electric vehicles for energy storage.

2. Energy Storage Systems: Flywheels are used in uninterruptible power supply (UPS) systems to provide a reliable power source during power outages. They can also be used for grid energy storage, absorbing excess energy when demand is low and releasing it when demand is high.

3. Industrial Machinery: Many types of machinery use flywheels to smooth out power delivery and reduce wear on machine parts. For example, in a press or a punch, a flywheel stores energy while the machine is idle and releases it quickly to provide a powerful strike.

4. Fitness Equipment: The flywheel is a key component of indoor cycling bikes, where it simulates the momentum of an outdoor bicycle.

5. Aerospace: Flywheels have been proposed for use in spacecraft for energy storage and attitude control.

6. Trains: Some trains, particularly those that frequently stop and start, use flywheels to recover energy during braking.

7. Power Plants: Flywheels are used in power plants to regulate the frequency of the power grid. They absorb energy when frequency is too high and release energy when frequency is too low.

The applications of flywheels are numerous and extend to any system where there is a need to store rotational energy, stabilize the speed of a machine, or smooth out power delivery.


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