What is the flywheel?
frowwheel is a simple rotating wheel used to store energy or something stabilization. The energy it stores is equal to the moment of inertia - a physical term, which essentially means the weight of an object that occurs a square of its distance from the rotation axis - square angular speed times 2. The stabilization effect comes from changes in the inertia resistant to its rotary speed.
Frowheels are used as a power supply device for high -performance scientific experiments that would create an unacceptable power increase if they remove the power supply from the electric grid. Such a flywheel batteries can work in a vacuum to prevent energy loss due to air friction, and will be accelerated regularly to compensate for the loss of rotation speed due to heat and vibration scattering. Good inertia designs with r rOshes as small heat and vibration as options, maintaining energy for target application.
frowwheel stores different amounts of energy depending on its weight and rotation speed. For example, a bike bike weighs about 1 kg (2.2 lb), a diameter of about 70 cm (28 inches) and a rotation speed of about 150 rpm (rotation per minute). This contributes to the stored energy of 15 J (Joules). Next, consider a wheel on a train moving at 60 km / h (37 mph), with a weight of 942 kg (2,076 lb), a diameter of 1 m (3.3 ft) and a rotation speed of 318 rpm. This flywheel would have a rotary energy of about 64 kJ (kilojoules), about 43,000 times larger than a bike bike.
The flywheel battery designed for energy storage has energy much larger than both of these previous examples, mainly because of the extreme rotation speed. One example made by flywheel in Ottawa boasts 100 kg (220 lb) mass, diameter 60 cm(27 inches) and aryex rotation 20 000 rpm. This flywheel battery can store about 10 MJ (megajoules), enough to light 100 W bulbs for 1,000 seconds. This flywheel battery design is not very larger than the refrigerator. An even larger flywheel, a type used as a backup of electrical output, can hold 100 MJ energy. These types of inertias can be used casins, hospitals, data centers or in industry to maintain energy in case of failure or fluctuations in input.