Flywheel energy storage for nuclear powered aircraft carriers

Are flywheel energy storage systems suitable for commercial applications?

Among the different mechanical energy storage systems, flywheel energy storage systems (FESS) are considered suitable for commercial applications. An FESS, shown in Figure 1, is a spinning mass, composite or steel, secured within a vessel with very low ambient pressure.

What stabilizes the Flywheel Energy Storage System?

The stability of the Flywheel Energy Storage System (FESS) is increased by a feedback system monitoring the shaft position. Active magnetic bearing accommodates coils that can adjust the amount of electromagnetic force in the system, thereby reducing vibrations in the rotating mass.

Can flywheel energy storage systems be used in spacecraft?

In aerospace, flywheels are being considered as a power source for spacecraft, which are mainly powered by solar energy. The idea is that Flywheel Energy Storage Systems (FESS) will bridge the energy gap when the spacecraft goes into darkness.

Are flywheel batteries a good energy storage system?

Flywheel energy storage systems are suitable and economic al when frequent charge and discharge cycles are required. Fu rthermore, flywheel batteries have high power density and a low environmental footprint. Various techniques are being employed to improve the efficiency of the flywheel, including the us e of co mposite materials.

Can small-scale flywheel energy storage systems be used for buffer storage?

Small-scale flywheel energy storage systems have relatively low specific energy figures once volume and weight of containment is comprised. But the high specific power possible, constrained only by the electrical machine and the power converter interface, makes this technology more suited for buffer storage applications.

What are some new applications for flywheels?

Other opportunities for flywheels are new applications in energy harvest, hybrid energy systems, and flywheel’s secondary functionality apart from energy storage. The use of new materials and compact designs will increase the specific energy and energy density to make flywheels more competitive to batteries.