Context:

The homeostasis of the Urban Train of Guadalajara (Mexico) experiences entropy relative to the conglomeration of users in the so-called rush hours. This leads to greater consumption of electrical energy in daily commutes; however, the weight coming from users can be used as thermodynamic negentropy to reduce their entropy levels. Therefore, the objective of this research is to determine the feasibility of using piezoelectricity in obtaining and consuming electrical energy for the operation of the system.

Method:

The research is based on the data provided by the Urban Electric Train System (SITEUR, in Spanish) and the Federal Electricity Commission (CFE). This information is triangulated along with data obtained in field exercises, and based on energy the supply and demand; then, the approximate weight of the users and the energy that the piezoelectric generation system can produce per person are calculated. Finally, the Entropy-Homeostasis-Negentropy (EHN) model is used to determine the homeostasis of piezoelectricity in the energy consumption of the urban electric train in the metropolis of Guadalajara.

Results:

The use of piezoelectricity can significantly improve efficiency and achieve energy optimization of urban mobility systems up to 89,7%; for example, the case of Line 2 of the SITEUR in Guadalajara. This improvement in efficiency is possible due to the homeostatic conditions of the system and the average influx during rush hours, when it reaches 83,059 users. Therefore, it is possible to generate thermodynamic negentropy through the electrical energy coming from the piezoelectric systems and the weight of the users.

Conclusions:

The energy produced by piezoelectricity that makes use of the users’ weight can be stored to power the lines of the urban electric train network. In this way, the efficiency of the energy consumption in daily commutes is improved, saving the company money and energy (through the reduced amount use of external energy to produce work).