Examinando por Materia "Water - distribution"

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    Determinación estadística de la posibilidad de poner a operar los tres grupos del bombeo Palenque – Cucaracho del sistema de acueducto de la Zona Centro-Occidental de la ciudad de Medellín, Colombia en forma simultánea
    (Universidad EAFIT, 2017) Montoya Pérez, Daniel; Botero Herrera, Francisco Javier
    This paper presents a hydraulic variable study of a hystorical register of a potable water pumping system, in order to stablish the operating viability of running all its tree groups in paralel, so therefore, meet the consumptions needs of the communities served with Palenque – Cucaracho’s system -- A Hazen-Williams calculation model was set to obtain the behavior of the piping system against changes in flow rate -- Design data were collected form Empresas Públicas de Medellín databases, data mining processes were carried out to get the hydraulic variables history, and finally, all this information was compared with the factory conditions of the equipment when they were originally put into operation -- A comparison between the flow conditions of a single machine running alone, two and the three of them in parallel were made to determine efficiency variation in each equipment, increases of pressure losses were checked and the whole work was framed into local laws and regulations for the industry and the acceptance standards for field tests of pumping systems -- Finally, to fullfil the main purpose, concluding whether if it is feasible or not, to run all the groups of the station into parallel operation
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    Identificación de variables incidentes en el presupuesto de las labores de mantenimiento correctivo en la infraestructura de distribución acueducto en el Área Metropolitana del Valle de Aburrá
    (Universidad EAFIT, 2017) García Henao, Willy; Botero Botero, Luis Fernando
    This paper contains the procedures and results of the business case study, which aims to identify and assess the variables that influence the increase of value of the economic offers submitted by the contracting firms to meet the corrective maintenance needs of the water supply system of the Metropolitan Area of the Valley of Aburrá located in Medellín, Colombia, with the purpose of being taken into account and incorporated into the elaboration of the reference budgets of the Colombian utility company Empresas Públicas de Medellín -- As a result of the literature review, it was identified that the most influential variables in the costs of the evaluated activities were the human labor and the transport of staff, so it was decided to assess them quantitatively as a productivity and labor yields analysis for the first variable and average travel times and speeds for the second -- As a result of compiling and analyzing the data statistically, the general coefficient of productivity was obtained for the evaluated contract and a database of labor yields was made for the most representative activities of the analyzed contract, and a map of approximate isochronous lines for the area of influence of the project was made -- By last, the differences in direct costs presented by contractors were identified as compared to those calculated by EPM related to labor and transportation of staff, materials and equipment
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