Use of residual energy from underground infrastructures: Madrid - Sevilla metro station
2023
Sánchez Orgaz, Susana | Muñoz Antón, Javier | Tadeo Cañete, Marina | Rodríguez Martín, Javier
Cities have great potential to implement innovative solutions and improve energy efficiency and the use of non-conventional energy sources, laying the foundations for a new, more sustainable urban model. With this vision and the aim of finding solutions to this challenge, Madrid Subterra emerges. This work is within the project of this association created with the aim of promoting the exploration and exploitation of the potential of clean and renewable energy of the urban subsoil of Madrid. This study analyses the energy use of the Seville Metro station for the thermal supply of the Building of the Ministry of Environment of the Community of Madrid. The main goal is to extract the waste heat generated in the metro tunnels due to the traction and braking of machines, auxiliary facilities, or transit of people on the platforms and use it to produce domestic hot water (DHW) using a heat pump to supply the referred building. This concept could reduce the temperature in Metro facilities and save energy. From the tunnel the ventilation flow and temperatures data, the performance of the system has been estimated using the CoolPack program. The results obtained show that this system could supply domestic hot water for 7640 people per month with a COP of 2.663 and SCOP of 1.975.
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