Ingeniería Mecánica

Permanent URI for this collectionhttp://repositorio.uta.edu.ec/handle/123456789/900

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Subject: search.filters.subject.CÁMARA TERMOGRÁFICA

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    Diseño y construcción de un prototipo de quemador de GLP de Baja potencia para secado agroindustrial para uso en los Laboratorios de la FICM
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2020) Jarrín López, Alex Gabriel; Bayas Pasto, José Luis; Cabrera Anda, Santiago Paúl
    The present technical project is based on the design, construction and functional tests of a LPG burner where information on types of burners, material characteristics was acquired, selecting the best alternative through weightings with criteria such as: cost, performance, characteristic of flame, ease of transfer and primary air with which the fuel-oxidizing mixture will be made. The main elements such as the fire cylinder, injectors and the structure that will support the cylinder and components were designed, as well as thermal insulators such as glass wool, ceramic fiber and alumina ceramic tube. In order to obtain temperature data in the fire cylinder, technological equipment was used such as: pyrometer, anemometer, thermal imager and LPG consumption meter, in addition to thermal calculations thermal expansion, combustion and losses caused by heat transfer were determined. With the use of a software, combined losses by convection and radiation were established in the Sankey diagram (5.7 porcent) , losses due to solid burns (6 percent), losses from the rear of the cylinder (7.6 percent) were established in the Sankey diagram) and unquantified losses (10 percent) obtaining a useful heat of 7.8 kWh and an efficiency of 70.7 percent of useful hot air flow. Finally, with the help of a software it was possible to analyze the shape and color of the burner flame reaching an optimum operating range with a blue flame length between 11.8 to 15.2 cm and a temperature of 487 degrees Celsius, showing the minimum presence of unburned which benefits the efficiency and calorific value of the LPG burner.
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    Diseño y construcción de un prototipo de quemador de GLP de Baja potencia para secado agroindustrial para uso en los Laboratorios de la FICM
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2020) Bayas Pasto, José Luis; Jarrín López, Alex Gabriel; Cabrera Anda, Santiago Paúl
    The present technical project is based on the design, construction and functional tests of a LPG burner where information on types of burners, material characteristics was acquired, selecting the best alternative through weightings with criteria such as: cost, performance, characteristic of flame, ease of transfer and primary air with which the fuel-oxidizing mixture will be made. The main elements such as the fire cylinder, injectors and the structure that will support the cylinder and components were designed, as well as thermal insulators such as glass wool, ceramic fiber and alumina ceramic tube. In order to obtain temperature data in the fire cylinder, technological equipment was used such as: pyrometer, anemometer, thermal imager and LPG consumption meter, in addition to thermal calculations thermal expansion, combustion and losses caused by heat transfer were determined. With the use of a software, combined losses by convection and radiation were established in the Sankey diagram (5.7 porcent) , losses due to solid burns (6 percent), losses from the rear of the cylinder (7.6 percent) were established in the Sankey diagram) and unquantified losses (10 percent) obtaining a useful heat of 7.8 kWh and an efficiency of 70.7 percent of useful hot air flow. Finally, with the help of a software it was possible to analyze the shape and color of the burner flame reaching an optimum operating range with a blue flame length between 11.8 to 15.2 cm and a temperature of 487 degrees Celsius, showing the minimum presence of unburned which benefits the efficiency and calorific value of the LPG burner.
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    Análisis del caldero de 125 BHP de potencia del Hospital Regional Docente de Ambato para determinar su rendimiento energético
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2018) Guamangallo Tandalla, Cristian Wladimir; Escobar Luna, Luis Eduardo
    For the realization of this project the use of measuring equipment was of great help as is the thermal camera, this equipment shows a thermal image of the sections or elements inspected, with this temperature the heat generated by the inspected sections was calculated, In addition, a smoke meter was used, this instrument is useful to determine the chemical composition that occurs at the moment of combustion and by means of stoichiometric calculations the air-fuel ratio was determined, which indicates the use that the fuel is generating within This equipment, with these data obtained from the tests, proceeded with the necessary calculations, for which thermodynamic criteria and heat transfer criteria were taken into account, with these data the determination was made of the performance that the boiler generates up to now. It is necessary to determine the performance of these equipment, because this factor helps to predict the change of some element that integrates this equipment, and thus extend its useful life. Concluded with the development of this project, the maintenance personnel were informed of the care they must have for a better management of this equipment, and the maintenance manager was also informed of the tests they must perform to determine the performance of this equipment, and If necessary, perform more frequent preventive maintenance.
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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.