Examinando por Materia "Bicycles"

Mostrando 1 - 4 de 4
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    E-bikes for steep roads: Mid drive and hub drive motor efficiency comparison
    (Inderscience Enterprises Ltd., 2018-01-01) Arango, I.; Godoy, A.; Lopez, C.; Arango, I.; Godoy, A.; Lopez, C.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Mecatrónica y Diseño de Máquinas
    Power input, speed, and efficiency concern people when selecting a transportation means. This study compares multiple e-bikes configurations and presents to the reader scientific criteria to choose the one that fits best for non-trained cyclists, who want to use e-bikes for everyday transportation in cities with steep roads, assuring that the cyclist takes effective part of the power input. Power development, speeds, energy consumption and efficiency result from a mathematical model and experimental data. Configurations vary in motor placement, assistance level, cyclist cadence, wheel type and transmission sets. Results indicate that the motor's placement is the most determining factor in the efficiency of the entire system. Placing the motor in the bottom bracket, allows both the cyclist and the motor to range in the most efficient rpm. As efficiency for the middle drive motor is higher than the hub drive motor, energy consumption in the hub drive motor is 18% higher. Copyright © 2018 Inderscience Enterprises Ltd.
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    Estudio de factibilidad para el servicio de alquiler de bicicletas eléctricas dirigido a domiciliarios que distribuyen productos alimenticios.
    (Universidad EAFIT, 2019) Galeano Correa, Jessica Vanessa; Rendón Marín, Valeria; Gómez Salazar, Elkin Arcesio
    The accelerated urban expansion in the cities which constitutes the metropolitan area of Aburrá Valley has impacted air quality and urban mobility. One of the primary cause of the current environmental crisis is the dispersion of pollutant generated by motorised vehicles. Of which motorcycles, represent 14 % of annual emissions of PM2.5 (Medellín CómoVamos, 2017), particulate matter and are the most used means of transport in delivery service. For this reason, the goal of this dissertation is to carry out a feasibility study for the rental service of electric bicycles. It is aimed at food service deliverers in the city of Medellin. The development of the project is carried out with the guidelines of the operation of the United Nations Organization for Industrial Development (UNIDO), which provide the data to determine the viability of the project and materialize the idea as a business opportunity.
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    A user-centred assessment of a new bicycle sharing system in Medellin
    (Elsevier Ltd, 2017-01-01) Bejarano, M.; Ceballos, L.M.; Maya, J.
    A bicycle sharing system (BSS) offers multiple benefits to a city as well as numerous challenges for effective implementation, especially if the system is connected to other modes of transportation. User-centred assessments of BSSs have been recognised as a paramount factor in transportation research, although it has received relatively little attention. This ethnographic study implemented a user experiential approach for assessing EnCicla, which is a new BSS in the city of Medellin, Colombia. A deeper understanding of users was needed for identifying the perceived journey maps; including route stages, functional likes and dislikes, affective reactions, and motivations for using the system. Findings identified not only the functional but also the affective aspects of the user experience. The 40 participants were also classified into four user groups: Lover, Civic, Grateful, and Adapted. Managerial implications involved recommendations for improving the service design and the communication and promotion strategies of the system. Limitations have to do with the specific characteristics of the sample. © 2016 Elsevier Ltd
  • No hay miniatura disponible
    Ítem
    A user-centred assessment of a new bicycle sharing system in Medellin
    (Elsevier Ltd, 2017-01-01) Bejarano, M.; Ceballos, L.M.; Maya, J.; Universidad EAFIT. Departamento de Ingeniería de Diseño; Ingeniería de Diseño (GRID)
    A bicycle sharing system (BSS) offers multiple benefits to a city as well as numerous challenges for effective implementation, especially if the system is connected to other modes of transportation. User-centred assessments of BSSs have been recognised as a paramount factor in transportation research, although it has received relatively little attention. This ethnographic study implemented a user experiential approach for assessing EnCicla, which is a new BSS in the city of Medellin, Colombia. A deeper understanding of users was needed for identifying the perceived journey maps; including route stages, functional likes and dislikes, affective reactions, and motivations for using the system. Findings identified not only the functional but also the affective aspects of the user experience. The 40 participants were also classified into four user groups: Lover, Civic, Grateful, and Adapted. Managerial implications involved recommendations for improving the service design and the communication and promotion strategies of the system. Limitations have to do with the specific characteristics of the sample. © 2016 Elsevier Ltd