Ingeniería Mecánica

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    Diseño y construcción de una secadora de arenas para la producción de morteros en la hormigonera Hormicen
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2018) Ortega Castro, Andrés Sebastián; Guamanquispe Toasa, Jorge Patricio
    The technical Project is based on the design and construction of a dryer of sands for the production of mortars in the cement mixer HORMICEN, to ensure the design of the dryer was carried out research on the different elements of machine, such as: burners, types of industrial dryers, as well as fuel types, composition of sand, aggregates and mortars, types of mortars, among other fundamental aspects for the implementation of the project. Next is to take all the specifications given by the concrete mixer including the sizing, the load capacity, production volumen, operating time, ease of handling, maintenance, among others. This was a grain size analysis of sand through technical specifications [10] and compared to standards suitable for this purpose (ASTM C33), the importance of the rudimentary process automation to increase the volume of production [1]. The importance of the creation of an industrial dryer is already used in different materials for sand as in our case, the most important is the removal of moisture from the material in partially low percentages. The drying of the sand for the production of dry mortar lies in that sand is exposed to environmental conditions in which moisture is directly involved with the material, the moisture makes the final result by previous processes result whit a setting of a prematurely, causing so the product does not serve for the construction. Once all the aspects of design and analysis was carried out the construction of all the constituent elements of the dryer. Whit the tests to check the operation of the machine was obtained the expected results and the satisfaction of the company.
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    Diagnóstico térmico del sistema de generación y distribución de vapor en el área de lavandería y esterilización del “Hospital General Provincial Latacunga”
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017-08) Chango Cañaveral, Álbaro Fernando; Escobar Luna, Luis Eduardo
    The General Provincial Hospital Latacunga is located in the province of Cotopaxi Latacunga canton. For the present work a thermal analysis was carried out in the steam generation and distribution system of the Latacunga Provincial General Hospital. Natural convection heat losses were determined in the 124,890 kW system. The methodology used to obtain experimental data on surface temperature was based on the application of an electronic equipment (infrared thermometer) to determine the system efficiency of 84 percent the consumption of water of 3500 gal / day and fuel averaged 74 gal / day was calculated to determine the efficiency of the heat generator of 79.05%, using the Hospital Design Guide for Latin America and the Institute's regulations Mexican Social Security, which allow determining the consumption of steam needed by a hospital with the number of beds available, which yielded values of 1855 lb / h and 1849 lb / h respectively for a total of 162 beds available, alternatives proposed to reduce the losses of heat in the system of generation and distribution of steam which are: installation of the vapor recovery system flash with which it can recover up to 80 percent of the condensate that is purged to the atmosphere, replacement of damaged steam traps since the proper operation of the traps is fundamental for a good efficiency of the system and saving of fuel, implementation of material insulation in the distribution pipeline with which the uninsulated section of 8.5 meters, distributor - laundry area would decrease heat and temperature losses with 818,145 W and 90,5 degrees celcius respectively.
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    Diagnóstico termográfico en equipos mecánicos consumidores de vapor del área seca de la empresa Tenería Díaz Cía. Ltda. para la determinación de pérdidas térmicas
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017) Briseño Sánchez, Milton Fernando; Escobar Luna, Luis Eduardo
    The present experimental work refers to the determination of heat losses by convection and radiation in the equipment consuming steam of the company Tenería Díaz Cía. Ltda., by means of a thermographic diagnostic. In addition, the areas of overheating, temperature variation and inspection of the steam distribution pipelines were visualized. Measurements were made during the working day, in the morning, midday and afternoon because the demands of the equipment at work vary during these periods. In the thermographic inspection the images were taken of the elements that present abnormal temperatures and higher than the environment, and then take corrective measures on certain elements. In relation to the steam distribution pipelines, a visual and thermographic analysis of the pipe sections found without thermal insulation and having high temperatures were performed, to carry out the relevant calculations and then to put a thermal insulation of characteristics such as wool spout of glass and finally evaluate the energy and economic savings obtained by placing said insulation. In addition, a steam trap was selected for the return pipe of the plate which shows a high temperature and direct connection to the sump, through the guide of selection of steam traps of the company Spirax Sarco which directed us towards one that can meet the requirements of the system. For the estimation of the thermal losses by convection, in each equipment a procedure was performed according to the area of heat transfer, either horizontal, vertical or inclined, using correlations and estimates that allowed we to first determine the convection coefficient, for later obtain the losses by convection. In parallel, the radiation losses in each section of the equipment taken as abnormal temperatures and representing losses of heat were determined.