Ingeniería Civil y Mecánica
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Item Diseño de un generador de flujo para un dispositivo de asistencia respiratoria de presión positiva de dos niveles (BIPAP)(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2024-02) Bayas Altamirano, Josue Edmundo; Núñez Núñez, Diego FernandoNowadays, the need for medical equipment for the treatment of respiratory diseases is growing more and more and the state’s expenditure for the acquisition of the same is very large, so the objective of designing the flow generator of the respiratory assistance devices such as BiPAP; opens the way to be able to manufacture ours at national level thus reducing the budget for the acquisition of these. The Technical Project focused on the design of the generator under conventional parameters of operation, this implies the development of the flow system and the control system in charge of supplying positive pressure with a driver of speed variation of the centrifugal ventilator together with a programmable control board, for the configuration of the treatment that the patient needs; the selection of the manufacturing materials and elements necessary for its operation was carried out. The behavior of the flow generator was analyzed by means of a multiphysical computational analysis, this was very useful since it allowed us to establish the operating range of the device, for the development of the manufacturing and assembly process. As a result, a virtual mock-up was created with all the information about the design process, including all the parameters contemplated in the design process of the flow generator, simulation results, manufacturing drawings and assembly drawings. Resulting in a solid project that is ready to be put into test operation.Item Diseño y construcción de un generador de flujo radial de imanes permanentes de neodimio con polos salientes en el rotor(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2019) Yancha Yanza, Manuel; Mayorga Pardo, Alex SantiagoThe present technical work consists in the design and construction of a permanent magnet generator of radial flow with salient pole in the rotor and performance tests with a Michell Banki turbine and a Pelton together with a diaphragm pump. Designed electrical machine that consists of the following stages: 1) selection of the magnetization degree of the magnet, inductor core materials and armature and winding, type of winding, number of slots per pole and per phase, linear current density and number of pairs of poles, 2) sizing of the internal and external diameter of the stator, air gap space, outer diameter of the rotor, axial length of the armature, calculation of the number of grooves and turns per phase, wire gauge and losses for iron and copper, 3 ) selection of bearings, power transmission system and dynamic dimensioning of the inductor shaft, 4) construction of the generator, 5) obtaining results. Real-time data acquisition was carried out by means of electronic equipment, with simple connection configurations and star coils, obtaining as results: a) the efficiency reached in one phase is 5.1% with a power of 32 (W) with revolutions of rotation between 830 and 814 (rpm) and flows of 115 and 68 (m3 / h) in the turbines Michell Banki and Pelton respectively, b) star connection of coils, the efficiency obtained is 78% at a power of 1 , 4 (kW) with revolutions of rotation between 820 and 804 (rpm) and flow rates of 129 and 72 (m3 / h) in the Michell Banki and Pelton turbines respectively. The turbo-pump-generator system was quite efficient, expanding its applications to the generation of electricity, water pumping and construction techniques, a project that will serve for future applications in vulnerable sectors.Item Caracterización de un generador de flujo axial para aplicaciones en energía eólica(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017) Claudio Medina, Cristian Ernesto; Mayorga Pardo, Alex SantiagoIn the present study, the performance and generation qualities of an axial flow generator were determined by checking the data with two types of coil connections. There are two configurations according to the layout of the poles, the so-called radial and axial flow, this study was based on the axial flow consisting of two configurations for the connection of coils were tested two generators one with coils in series and another in parallel, to determine the qualities of each. With the lower resistance configuration, maximum power was obtained of 282W for the generator of coils in series and of 39.4W in the generator of coils in parallel. The design is based on determination of magnetic flux, number of revolutions, number of poles, number of coils, output voltage, electrical losses and finally efficiencies. To obtain data, a test was performed, consisting of the location of the generators in a lathe using a flange to connect the rotors with the mandrel and with a perforated plate and centered for the counterpoint, at the outlet of the rectifier was connected a Rheostat in series to vary its resistance and thus to control the intensity in the circuit, were connected two multimeters one to measure the amperage and another one to measure the voltage. The data obtained were processed with electronic sheets based on the equivalence of the wind speed with the revolutions per minute for a better appreciation of the results. The efficiency achieved was 86.56% for the coil generator in parallel and 67.67% for the coil generator in series, this is due to its configuration, in the first case the electric resistance is very small, and in the second case is larger resulting in higher losses, but at the same time it was found that the generator of series coils has better qualities of generation than the generator of coils in parallel.