Ingeniería Civil y Mecánica

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Author: search.filters.author.Dávila Zúñiga, Cristian AndrésSubject: search.filters.subject.EFICIENCIA ENERGÉTICA

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    Análisis de parámetros para la mejora de eficiencia en quemadores de tubo radiante de dos pasos
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2025-02) Dávila Zúñiga, Cristian Andrés; Cabrera Anda, Santiago Paúl
    The presence of challenges related to energy efficiency losses, thermal non-uniformity, heat utilization, and increased pollutant emissions leads to limited operation, thus affecting its performance. This research proposes an analysis of thermal and technical parameters influencing the efficiency of a two-pass radiant tube burner through an experimental and analytical approach. Various relevant thermal parameters were analyzed to improve the energy performance of the two-pass radiant tube burner. These parameters include heat transfer mechanisms, flame behavior, air-fuel ratio, preheating of the mixture, and temperature distribution, the latter of which was analyzed using advanced thermal analysis software. The description of technical features to enhance thermal performance was linked to the analysis and evaluation of the experimental prototype. An air-to-air heat exchanger was incorporated while maintaining the same pressure settings for air and fuel. Measurement tools such as thermographic cameras and anemometers were used to support the evaluation of alternatives. Thermodynamic calculations, heat transfer, performance, and efficiency analyses were conducted for two configurations: with ambient temperature oxidant and with preheated air. As a result, the two-pass radiant tube burner’s performance increased from 8.66 to 17.15 percent, and the air temperature inside the heat exchanger rose from 20 to 40 degrees Celsius. Additionally, the flame behavior improved from being irregular and elongated with oscillations to becoming a uniform, compact, and controlled flame.