Flywheels applications

Ubiquitous in rotating machinery, flywheels have been used as a component of manufacturing equipment since their application in potters wheels before 2000 B.c.E. 

Flywheels are found in internal-combustion engines, where they damp out torque pulses caused by the periodic firing of cylinders. In this application, energy is stored veiy briefly before it is used— for less than one revolution of the wheel itself... 

Rim components of flywheels or rotating members in governors (HM). Counterweights in static and dynamic balancing application in airplanes and helicopers (aircraft balance weights) (HM). For typical shapes, see Fig. 7.26. 

The content of Figs. 10.1 and 10.2 is summarized in Fig. 10.3 by showing power as a function of discharge duration for both applications and energy-storage technologies. Supercapacitors, flywheels, and SMES are shown to be primarily useful for power-quality applications. Batteries are suitable for a broad spectrum of applications, and pumped-hydro and CAES are shown to be primarily useful for load levelling [9]. 

MW for about 10 s, or about 4.5 kWh. They are often used in uninterruptible power supply (UPS) applications. Flywheels are much less costly than SMES and supercapacitors, and they compete with batteries in high-power, low-energy applications. The response time of a flywheel energy-storage system is of the order of a few milliseconds. 

At position (3), lower left, the force produced by the ram has reached the level that is required to overcome the friction of all briquettes in the channel as well as, if applicable, the back pressure caused, for example, by the briquettes in a cooling channel. The entire line of briquettes moves forward with the force remaining approx, constant (position 4, upper right). During the back stroke, the energy of the drive is stored in a flywheel and made available later to overcome the deceleration/acceleration at the return points of the reciprocating motion and also to help during compaction. 

The spinning basket has a large momentum and acts like a flywheel, so that when the motor is switched off it will continue to run for a long period. Safety interlocks are fitted so that the lid cannot be opened whilst the machine is rotating and that the application of the brake will cut out the motor. Similarly, there is a cut-out switch which will operate when excessive vibration occurs. 

B. The flywheels will be designed to withstand normal operating conditions, anticipated transients, and the largest mechanistic pipe break size remaining after application of leak before break as described in Section 3.6, combined with the Safe Shutdown Earthquake. 

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