Ingeniería Civil y Mecánica

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Start date: 2024Subject: search.filters.subject.RENDIMIENTO

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    Análisis de parámetros termodinámicos para determinar niveles de eficiencia en miniturborreactores
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica., 2025-02) Paucar Rojana, Christian Javier; Cabrera Anda, Santiago Paúl
    This project focuses on acquiring in-depth knowledge about miniturbojets within the field of combustion engines, since, to date, there is not enough research on the subject. An evaluation of the thermodynamic parameters that influence their operation was carried out, using specialized software. In this program, a miniturbojet model was selected and, based on it, calculations were made to optimize its efficiency and performance. For the initial development, key aspects such as the temperature and inlet and outlet pressures in the compressor, combustion chamber and nozzle were analyzed. In addition, additional variables such as fuel type and compression ratios were considered. These factors were determined by thermal efficiency calculations, considering the heat input in the miniturbojet compressor. From these parameters, an exhaustive analysis was carried out, allowing the identification of different variables that influence the performance of the system. In particular, a detailed study of the TJ1 turbomachine was carried out, in which its thermal and propulsive efficiency were determined, showing how the energy contained in the gas flow is transformed into useful thrust. In addition, it was identified that various sections of the miniturbojet operate under a Brayton cycle, which allowed its isentropic performance to be evaluated under the temperature and pressure conditions reached during the operation of the system, also considering possible energy losses and their impact on efficiency.
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    Diseño y construcción de un prototipo de quemador a gas de tubo radiante de doble paso sin regeneración para uso semi-industrial
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2024-08) Cortez Palma, Anderson Steeven; Torres Tierra, Kevin Javier; Cabrera Anda, Santiago Paúl
    In the present research, due to the problems that arise in the combustion deficiency of LPG in burners, the initiative was taken to design and build this prototype, to analyze and perform functional tests, for the collection of data necessary in the determination of the energy use of the burner. Information was collected on the various types of existing radiant tube burners, the characteristics of the materials they are manufactured, the design parameters, in such a way that the most appropriate option was selected based on criteria such as performance, cost, characteristic of the flame and the combustion mixture that exists between LPG and air, the prototype was made using advanced 3D design software, which allowed modeling its main components, in which the gas injector stands out. , the radiant tubes and the support structure for the prototype. The prototype was built with equipment such as GMAW welding, GTAW, plate bending machine, drill, cutter, among others, which allowed the union of the tubes, elbows and others. accessories for support. To measure the temperatures and gases in the radiant tubes in the operation tests, technological equipment was used such as: the thermographic camera, Bacharach Insight gas analyzer, pressure gauges and air velocity meters. As a result, thermodynamic calculations, heat transfer calculations, mechanical calculations and performance and efficiency calculations of the system were carried out, as well as its subsequent assembly.