We report here a new approach in human harvesting with piezoelectric generators, for mass energy production. Nanogenerators capable of converting energy from mechanical sources to electricity with high effective efficiency are attractive for many applications, including energy harvesters. For the purpose of massive energy production, the concept of piezo-generators detached from the human body and the idea of viewing population dynamics as mechanical stress sources were tested. Instead of modeling dynamics of traffic states on individuals, we used spatial configurations of traffic states and temporal dynamics in the metro network of Athens. PMS (Piezoelectric Metro Seats) which contain PZT stacks piezoelectric generators considered to be placed in all the EMUs (electric multiple units) of the Athens metro network. The results, either by taking into account the correlation between the amount of passengers and the amount of train departures or considering the frequency of the departures constant, are promising and the energy production can reach the amount of 40 MWh annually.
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[v1] 2012-12-03 11:47:28
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