Human burst energy storage picture

Is a flywheel energy storage system a burst containment?

The housing of a flywheel energy storage system (FESS) also serves as a burst containment in the case of rotor failure of vehicle crash. In this chapter, the requirements for this safety-critical component are discussed, followed by an analysis of historical and contemporary burst containment designs.

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Is the stress distribution in a ring-shaped burst containment homogeneous?

However, the stress distribution in the ring-shaped burst containment is (in very simplified way) subsequently assumed to be homogeneous. The method is based on the idea that the centrifugal force acting on the individual fragments at the time of bursting is subsequently introduced directly into the housing wall.

Can a cylindrical burst containment be used in a spin pit?

A cylindrical burst containment based on the calculation methods available in literature was designed for the spin pit for the investigation of FESS containments described in Sect. 8.9.2. In this case, test flywheels with defined burst speed and fracture geometry are used.

What is a bursting chamber?

The flexible, 6-mm-thick shaft is guided into the bursting chamber through a protective cover to prevent fragments from entering the bearings or hitting measuring equipment. Burst chamber (blue): The burst containment to be tested is located in this chamber. The outer walls of the burst chamber are made of 25-mm-thick solid steel.

How do you calculate the energy introduced into a containment?

It can be concluded that the energy introduced into the containment in the form of heat ( Et) can be calculated as follows: In this case, mh is the mass of the cylindrical burst housing, cp is the specific heat capacity of the housing material, and Δt is the maximum measured temperature difference.