Featured are a device, system and method for dissipating at least some heat energy generated by one or more heat generating components of a flywheel energy storage system. The first wall element has a first connecting section that is located inside the inner space, and at the free end of this connecting section, an end section is to be folded back onto a second element that is adjacent to the first connecting section. The database block has: all the prototypes arranged in slices, each slice being capable to store up to a maximum number of prototypes; the input patterns or queries to be presented to the ANN; and the distances resulting of the evaluation performed during the recognitionclassification phase.