STM Journals Peer-reviewed research from Consortium e-Learning Network

35 publications

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    Environmental Impact Reduction by Using Smart Household

    By Carlos Armenta-Deu

    Abstract: In this paper, we study the environmental impact reduction due to the application of intelligent protocols to household heating. The study analyzes the reduction in greenhouse gases (GHG) emissions associated with lower energy consumption in heating detached and semi-detached houses and blocks of apartments. The new protocol bases its operation on a more efficient heating process, which reduces the operational time of the heating source, commonly heating equipment powered by …

    Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 10–23 Read article

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    FUEL CELL-PV HYBRID SYSTEM FOR EVs

    By Carlos Armenta-Deu

    Abstract: This paper studies and analyzes a hybrid system consisting of a fuel cell unit and flexible photovoltaic panels to power electric vehicles. Hydrogen in a storage tank powers the fuel cell; the tank recharges by an onboard electrolyzer connected to the photovoltaic panels. Fuel cell unit operates in a closed loop to enhance efficiency and to avoid water waste and oxygen pollution with ambient gasses. A distilled water tank, connected …

    Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 20–30 Read article

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    Analysis and Evaluation of the Electric Vehicles Carbon Footprint: Application to Environmental Urban Areas

    By Carlos Armenta-Deu, Lucía Carmona, Cristina Rincón

    Abstract: This paper analyzes and evaluates the carbon footprint of electric vehicles, Hybrid Electric Vehicle (HEV), Plug-in Hybrid Vehicle (PHEV), and Electric Vehicle (EV). A complete survey of the transformation process of fossil fuels like petrol, gas, or carbon into electricity for the batteries of electric vehicles represents the goal of this work, following the well-known methodology “from well to wheel”. A comparative analysis of urban cars powered by internal combustion …

    Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 2, 2023 · pp. 27–47 Read article

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    Control System for Heat Generation in a Hybrid PV/T System

    By Carlos Armenta-Deu

    Abstract: The study analyzes the performance of a PV/T unit with a PCM attached to the rear side of the PV panel in direct contact. The unit works removing heat from the panel and using this heat for external applications. The PCM has a heat exchanger inserted to transfer heat removed from the PV panel and stored in the PCM to a water flow that circulates through the heat exchanger. The …

    Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 1, 2023 · pp. 1–16 Read article

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    Compact PV-PCM System with Heat Recovery Unit for Cogeneration System

    By Carlos Armenta-Deu

    Abstract: This paper studies the feasibility of developing a compact system based on a photovoltaic panel with a heat exchanger embedded in a phase change material (PCM) attached to the rear side of the panel. The system generates electric energy at the PV panel, and thermal energy using the removed heat from the panel. The paper analyzes the improvement in PV panel efficiency and the Coefficient of Performance (COP) of the …

    Published in Journal of Alternate Energy Sources & Technologies · Vol. 14, Issue 1, 2024 · pp. 13–24 Read article

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    Carbon dioxide injection to remove shale gas from sedimentary clayey schists

    By Carlos Armenta-Deu

    Abstract: This paper proposes an alternative method to the fracking technique to obtain shale gas, injecting compressed carbon dioxide in the subsoil. The injection of a pressurized gas like carbon dioxide into a porous media provokes the removal of existing gas into the pores, provided the pressure of the injected gas is high enough. The design of the adequate geotechnical structure makes it possible to inject pressurized carbon dioxide and extract …

    Published in Journal of Geotechnical Engineering · Vol. 10, Issue 1, 2023 · pp. 38–49 Read article

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    Hybridization of Photovoltaic Panels and Thermoelectric Generators: Energy Efficiency Improvement

    By Carlos Armenta-Deu

    Abstract: Heat removal from PV panels has been revealed as a feasible and operational solution to reduce the temperature of the panel and increase energy efficiency. In this paper, the use of a thermoelectric generator (TEG) attached to the photovoltaic panel is proposed. A set of Peltier cells has been designed, built, and coupled to the rear side of a PV panel to remove the heat flow generated at the PV …

    Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 3, 2022 · pp. 29–46 Read article

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    ADVANCED METHOD TO CALCULATE REAL DRIVING RANGE FOR ELECTRIC VEHICLES IN INTERCITY ROUTES

    By Carlos Armenta-Deu, Hernán Cortés

    Abstract: This paper describes an online method to calculate real driving range for electric vehicles when operating in intercity routes. The method uses specific algorithms for dynamic conditions based on real driving conditions adapting the calculation method to the characteristics of the route and to the way of driving; electric vehicle characteristics are also taken into consideration for the driving range calculation. The method has been compared to the WLTP protocol …

    Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 3, 2022 · pp. 24–42 Read article

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    SIMULATION OF THE PERFORMANCE OF PV/T (PV-PCM) SYSTEMS IN TRANSIENT STATE

    By Carlos Armenta-Deu

    Abstract: The paper describes the analysis of the thermal performance of a PCM unit attached to a PV panel configuring a PV/T system. Thermal performance has been analyzed from the transient process point of view considering the temperature evolution of the PCM with time dependent on ambient temperature and solar radiation. A specific algorithm for determining the time evolution of the PCM temperature has been developed. The model uses the DERIVE …

    Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 1–13 Read article

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    Design of a control system for determining the autonomy of electric vehicles (EVs)

    By Carlos Armenta-Deu, Théo Coulaud

    Abstract: The main goal of this project is the development of an advanced system for controlling the performance of lithium batteries that equip electric vehicles by improving previous design of the control system so the real driving range of an Electric Vehicle (EV) can be determined within the highest accuracy, considering the driving conditions, driving attitude of car drivers and external influences.

    Published in Journal of Mechatronics and Automation · Vol. 9, Issue 2, 2022 · pp. 1–16 Read article

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    INFLUENCE OF CLIMATIC CHANGES ONTO THE PERFORMANCE OF ELECTRIC VEHICLES: APPLICATION TO DRIVING RANGE

    By Carlos Armenta-Deu, Baptiste Giorgi

    Abstract: The paper has the goal of developing a methodological process to predict electric vehicle driving range under the influence of sudden temperature changes in intercity routes due to variable climatic conditions. The model is based on the combined effects of discharge rate and temperature changes on the performance of a lithium battery; the model predicts the driving range using the dynamic driving conditions to determine the Depth-Of-Discharge (DOD) at any …

    Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 43–58 Read article

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    BATTERY/SUPERCAPACITOR HYBRID SYSTEM FOR ELECTRIC VEHICLES

    By Carlos Armenta-Deu, Quentin Jach

    Abstract: The paper is focused to the design and development of a new hybrid system to power electric vehicles. The system is made up of a conventional lithium battery that is used to propel the vehicle when there is no acceleration or the acceleration and power demand are low or moderate, and a supercapacitor that powers the electric vehicle at high power demand periods or when the acceleration is relevant. The …

    Published in Journal of Automobile Engineering and Applications · Vol. 9, Issue 2, 2022 · pp. 20–42 Read article

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    Theoretical modelling of heat transfer in non-homogeneous porous media

    By Carlos Armenta-Deu, Leticia Bottazzi

    Abstract: The paper is focused on the study and analysis of heat transfer in geothermal substrates made up of non-homogeneous porous media. The paper analyses the influence of porosity on the heat transfer as a result of the combination of conduction and convection mechanisms that take place in non-homogeneous porous materials. As a result of the combined effect heat transfer is not homogeneously distributed throughout the cross section of the geothermal …

    Published in Journal of Geotechnical Engineering · Vol. 9, Issue 2, 2022 · pp. 44–51 Read article

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    SEASONAL TEMPERATURE IMPACT ON THE DRIVING RANGE OF ELECTRIC VEHICLE: EFFECTS ON CARBON EMISSION SAVING

    By Carlos Armenta-Deu, Benjamin Boucheix

    Abstract: The main goal of the project is to analyse the impact of the seasonal temperature on the performance of the battery of electric vehicles, thus on the driving range. A simulation study has been developed for a Tesla model 3 Mid Range operating in the area of Lyon (France). The simulation has been run for a year based on monthly average temperatures, developing a process to estimate daily temperature evolution. …

    Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 2, 2022 · pp. 10–34 Read article

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    Modelling and Simulation of Urban Smart Micro Grid Operation

    By Carlos Armenta-Deu, Gaspard Martin

    Abstract: The project is aimed at the development of a new protocol that enhances the operation of urban micro grid operation. The new protocol improves the capacity of management as well as the energy efficiency of the smart grid as an entire system. The modelling considers the interconnectivity between sources of energy and consumption centers, the daily hourly power generation by the different sources, and the hourly energy demand profile. The …

    Published in Journal of Nuclear Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 5–28 Read article

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    Simulation of a Renewable Energy Hybrid MicroHydro-Wind-PV-Solar System for Electric Generation

    By Carlos Armenta-Deu, Soreya Minkue

    Abstract: This project is based on the development of a renewable energy hybrid tri-system made up of a photovoltaic device, a small wind turbine and a micro hydraulic turbine to generate electricity in places where these renewable energy resources are available. The system pursues the reduction of energy dependence on local electric network as well as the greenhouse gases emission. The project will be theoretically modelled and verified in a small …

    Published in Journal of Alternate Energy Sources & Technologies · Vol. 13, Issue 2, 2022 · pp. 37–50 Read article

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    CONTROL SYSTEM FOR EXTENDED DRIVING RANGE IN ELECTRIC VEHICLES

    By Carlos Armenta-Deu

    Abstract: This paper is aimed at designing a control system that regulates the power and energy supply to the electric engine to optimize the battery use, so the driving range of the electric vehicle can be extended. The method is based on controlling the acceleration of the electric vehicle and maintaining it within specific limits as well as to use the inertial forces to help the vehicle in saving energy while …

    Published in Journal of Mechatronics and Automation · Vol. 8, Issue 3, 2021 · pp. 32–43 Read article

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    Simulation of A New Configuration for Tidal Power Plants: Analysis of Power Generation Increase

    By Carlos Armenta-Deu

    Abstract: A new concept in tidal energy use has been developed and modeled. The system is based on nonconventional distribution of tidal turbines in series rather than in parallel, using the stepped profile of the continental shelf. A hybrid configuration of series and parallel distribution of tidal turbines has been studied and analyzed. A third option with quincunx distribution of the tidal turbines has also been studied. The results have been …

    Published in Journal of Energy, Environment & Carbon Credits · Vol. 11, Issue 3, 2021 · pp. 8–22 Read article

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    THERMAL DISSIPATION SYSTEM APPLIED TO LED DEVICES

    By Carlos Armenta-Deu, Mario Moral

    Abstract: A thermal dissipation system, based on an aluminum case LED lamp system encapsulated in a PCM device, has been used to reduce LED device temperature, improving thermal performance of the LED unit. Three heating rates have been tested, low (0.6ºC/s), medium (1.3ºC/s) and high (1.8ºC/s). The system has been tested in an experimental prototype at reduced scale, showing a maximum reduction of temperature from 177.5º C to 56º C for …

    Published in Journal of Thermal Engineering and Applications · Vol. 8, Issue 3, 2021 · pp. 1–18 Read article

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    Reduction of Electric Vehicle Driving Range Due to Battery Capacity Fading

    By Carlos Armenta-Deu

    Abstract: This paper is mainly focused to the estimation of the reduction of the driving range in electric vehicles due to battery capacity fading as a consequence of the aging effects with cycling. A scale model reproducing the real driving conditions in electric vehicles has been used to develop a simulation process to evaluate the incidence of the cycling on the battery capacity fading. The model on which the simulation has …

    Published in Journal of Automobile Engineering and Applications · Vol. 8, Issue 2, 2021 · pp. 1–16 Read article

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