CMM licensed software to reduce energy expenditure in subway to Agencia de Eficiencia Energética

CMM licensed software to reduce energy expenditure in subway to Agencia de Eficiencia Energética
2.5% of the electric power used in Santiago, Chile, is needed to move the trains through the Metro’s network. 70% of this percentage goes to make the machines run. The rest goes to other needs. For example, air conditioning, lighting, box operation, trade, food and beverage vending machines, ATMs, and trading stations. Thus, any savings in energy expenditure has a great impact on the final balance of the company or the improvement of its services. By freeing resources Metro can improve infrastructure, security, air conditioning and customer service.
 
Achieving these advances in energy efficiency was the goal of the ‘Optimal integration of solar energy in the planning and operation of public urban rail transport systems’ project by researchers from the Center for Mathematical Modeling (CMM), the Energy Center and the Center of Solar Energy of Universidad de Chile. The project had contributions from Fondef-Conicyt, the university and Agencia de Eficiencia Energética (ACEE).
 
The team, led by Jorge Amaya, developed a software that simulates and models the energy expenditure of metro systems. The program will be licensed to the ACEE, so, it can be used by rail transport operators, builders, engineering companies, and universities.
 
The program seeks to improve operations’ planning and the driving of the urban railway to use less energy. This is relevant given the highest consumption occurs when starting and braking trains. The technology also seeks to contribute with the comfort of passengers through the temperature and humidity control.
 
In a seminar to close the project, Amaya recalled the beginnings of Osiris, as the team called the software. “It was a project that we carried out with the Metro systems of the European Union, where more than 17 partners participated in which the CMM was the only one not European. (…) The consortium sought to save up to 5% in energy expenditure in the subways “, he said.
 
He also announced that the software is already being installed at Leftraru, the most powerful supercomputer in Chile. Amaya thanked the work of the National Laboratory of High-Performance Computing hosted at the same CMM.
 
Then, the engineer Paula Uribe showed how the software works for a simulation of the trains’ movement along a metro line. “The peaks of energy consumption are always when accelerating. Reducing them impacts on the electricity bill Metro will pay. Peaks are expensive, so it is desirable that there is no “, she said.
 

Solar energy to improve from the stations

Carlos Benavides, a researcher at the Energy Center, addressed the possibility of generating energy through the installation of solar panels by covering the overground lines or the Metro stations. This power could be used to power air conditioning equipment and other services.
 
Santiago has the advantage that most of the stations on the surface are parallel to the mountain range, so they can receive solar radiation during the most part of the day.
 
According to Benavides, this project involves engineering and architecture challenges to install the panels and even decide on the design of future stations.
 
“We can assume this challenge in next stages of this project,” concludes Amaya.

Posted on Aug 6, 2018 in Frontpage, News