Bibliographic Details
| Title: |
Análisis comparativo del rendimiento térmico de un colector solar de placa plana variando el tipo de vidrio en la cubierta. |
| Alternate Title: |
Comparative analysis of the thermal efficiency of a flat plate solar collector varying the glass type in the cover. |
| Authors: |
Darío Albarracín-Álvarez, Mauro1, Torres-Tamayo, Enrique1 enrique.torres@utc.edu.ec, Luis Laurencio-Alfonso, Héctor1 |
| Source: |
Minería y Geología. jul-sep2022, Vol. 38 Issue 3, p288-300. 13p. |
| Subjects: |
Comparative studies, Solar collectors, Solar radiation, Performance of solar collectors, Atmospheric temperature, Thermal efficiency, Thermal analysis |
| Abstract (English): |
A comparative analysis of the thermal efficiency of flat plate solar collectors for air heating due to incident solar radiation was carried out. Two flat plate solar collectors and conventional cover of dark and clear glass were used, which allowed determining the incidence of incident solar radiation on the air outlet temperature. Experiments were carried out under equal conditions with real-time data collection every minute for six hours a day and four conditions: without forced air, with forced air at 0,033 kg/s, 0,5 kg/s and 0,061 kg/s. The experimentation allowed defining that the application of dark glass decreases the thermal efficiency; the best values are obtained when using clear glass, the outlet temperature obtained reaches average values of 8,26 °C without forced air. The comparative thermal performance between solar collectors with clear and dark glass covers shows values that reach 12 % in clear glass covers, the experimental incident solar radiation values varied between 200 W/m2 and 1 500 W/m2. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): |
Se realizó un análisis comparativo del rendimiento térmico en colectores solares de placa plana para el calentamiento de aire debido a la radiación solar incidente. Se utilizaron dos colectores solares de placa plana y cubierta de vidrio convencional oscuro y claro, respectivamente, lo que permitió determinar el efecto de la radiación solar incidente en la temperatura de salida del aire. Se experimentó en igualdad de condiciones con toma de datos en tiempo real cada minuto durante seis horas al día y en cuatro condiciones: sin aire forzado, con aire forzado a 0,033 kg/s, 0,5 kg/s y 0,061 kg/s. La experimentación permitió definir que la aplicación de vidrio oscuro disminuye el rendimiento térmico; los mejores valores se obtienen al utilizar vidrio claro, la temperatura de salida obtenida alcanza valores promedio de 8,26 °C sin aire forzado. El rendimiento térmico comparativo entre los colectores solares con la cubierta de vidrio claro y oscuro muestra valores que alcanzan el 12 % en cubiertas de vidrio claro, los valores de radiación solar incidente experimentales variaron entre 200 W/m2 y 1 500 W/m2. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
