Examinando por Materia "VEHICULOS ELECTRICOS"

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  • Tesis de maestría
    Decarbonisation of the Argentinian transport sector by the introduction of battery electric vehicles
    (2018) Costantini, Patricio; Turturro, Gastón Andrés
    "The thermochemical decomposition of beech wood biomass results in a poor quality bio-oil, which cannot be directly used in diesel engines. In order to make this oil resemble liquid fossil fuels, an upgrading technique should be applied. Among the available possibilities, hydrodeoxygenation (the removal of oxygen and saturation of double bonds through high pressure hydrogen) appears to be the most auspicious route to produce biofuels. Besides, this method requires a catalyst to increase the activity, which could be reused in further upgrading reactions so as to minimize the generation of waste material. In this work, four nickel-based catalysts were evaluated for the hydrodeoxygenation of beech wood bio-oil. After being synthesized, their superficial and compositional characteristics were assessed. Once the upgrading reaction was performed for the pyrolysis oil, the resulting products (upgraded bio-oil, aqueous phase and gas fraction) were separately analyzed. Considering the obtained results, the catalyst with the best upgrading performance was selected in order to regenerate and use it in further hydrodeoxygenation reactions. The catalyst selection was based on upgraded bio-oil, catalyst and reaction factors. Parameters such as carbon, oxygen and water content, HHV, pH value, poisoning and overall hydrogen consumption were taken into account. With the obtained results, Ni/SiO2 was chosen and therefore regenerated, which included the calcination and reduction of the spent catalyst before it was reused in a new hydrodeoxygenation reaction. Its performance was tested along three consecutive reactions and the quality of upgraded bio-oils corresponding to these cycles were evaluated. It could be concluded that Ni/SiO2 showed an improvement in the upgraded bio-oil quality next to a satisfactory performance after the three regeneration cycles, which points out that this particular catalyst can be regenerated and reused for a minimum of three times without significantly affecting the resulting upgraded bio-oil quality. Further characterization techniques should be performed in order to achieve a bigger understanding of the functioning of nickel-based catalysts and their reutilization in a larger number of consecutive upgrading reactions."
  • Proyecto final de Grado
    Plataforma inteligente para desarrollo de vehículos móviles autónomos
    (2017) Jurnet Berteloot, Alan; Lerendegui, Norberto Marcelo
    "El presente informe detalla el diseño del proyecto final de carrera titulado “Plataforma de desarrollo inteligente para vehículos móviles autónomos”. El proyecto es el equivalente al examen final de la asignatura Proyectos Mecatrónicos. El proyecto fue llevado a cabo entre marzo del 2017 y agosto del 2018. Se comienza con la introducción a la temática que pone en contexto y justifica el diseño realizado a partir de una investigación sobre distintas plataformas de desarrollo. Parte del proyecto es determinar las especificaciones en base a las necesidades concluidas de la investigación, las cuales se acordaron en conjunto con el departamento de Mecatrónica. El objetivo principal del proyecto es alcanzar y en lo posible superar los requerimientos detallados. Luego de definido el alcance del proyecto se comienza con el diseño de propuestas para cumplir con los objetivos e inmediatamente después se presentan los módulos en los cuales se divide la plataforma justificando todas las decisiones que se fueron tomando a lo largo del proyecto mediante distintos análisis. A continuación, se detalla la fabricación de la plataforma, donde se explica cómo se realizó justificando decisiones a partir de los métodos constructivos utilizados. Luego se explica la estructura modular de software encargada de controlar la plataforma, detallando y justificando decisiones de hardware. La siguiente sección muestra los resultados de distintos ensayos bajo distintas condiciones de entorno. Por último, se extraen las conclusiones del proyecto, donde en primer lugar se realiza un análisis de objetivos cumplidos, luego se plantean distintos puntos de mejora y cual serían los siguientes pasos para desarrollar una nueva versión de la plataforma. "
  • Tesis de maestría
    Price-based charging scheduling optimization for battery electric vehicles
    (2019) Richards, Juan Jeremías; Ried, Sabrina; Ensslen, Axel
    "The high emissions of greenhouse gases and the impact generated on the environment by human behavior during the last few years has led many governments to decide to promote the use of electric cars for passenger transport, as well as the replacement of conventional energy sources by renewable ones. These radical changes have a high impact on the installed energy infrastructure, especially if electric vehicles are charged in an uncontrolled mode because this could generate peaks of consumption saturating the electricity grid, as they require a high-power load. However, if the same vehicles could be charged in a controlled manner this would bring several advantages, such as shifting load to times when there is less consumption thus decreasing the power required during consuming peaks, or charging them during times when the price of electricity is low, thus generating savings in energy costs. In this master's thesis, a model was developed to find a schedule for charging electric vehicles that reduce these costs, later analyzing the economic benefits that this entails."
  • Tesis de maestría
    Product carbon footprint of a conventional vehicle
    (2018-08-07) Contreras Ordoñez, Emmanuel; Rimbon, Jérémy
    "The transportation sector has become one of the most important sources of greenhouse gases (GHG) emissions and energy consumption in the world, and such emissions have impact in the global warming. For that reason, governments have put special attention in limiting and reducing these emissions. As example of these efforts for the reductions of the anthropogenic greenhouse gases emissions, the Regulation (EC) No 443/2009 of the European Parliament can be mentioned. Internal Combustion Vehicles (ICV) represent the most important percentage of vehicles available and the most widely spread technology at the market, and it will be probably so still dominating the short and medium term future although alternatives technologies, such as Electric Vehicles (EV), have emerged as important competitors. Said that, this study aims to calculate and estimate the Product Carbon Footprint (PCF), which is related to the impact category of climate change, of a conventional vehicle working with a renewable fuel."
  • Proyecto final de Grado
    Scooters eléctricos: propuesta para el mercado argentino
    (2018) Cordes, Tomás Ezequiel; Hafner, Christian; Lischinsky, Martín Julio; Peralta, Martín Alejo; Schwartz, Miguel; Jouly, Nicolás
    "El presente informe detalla el análisis de prefactibilidad de un proyecto de inversión asociado a la industria de las motocicletas. Habiendo detectado la oportunidad de comercialización, se plantea el lanzamiento en Argentina de una marca de scooters eléctricos premium, ensamblando los productos en la Provincia de Buenos Aires."