IJETSI

Title: THERMAL BEHAVIOR OF TWO SOLAR COLLECTORS FOR AIR HEATING: ANALYTICAL STUDY
Authors: Gabriel Martinez Pereyra , Pio Sifuentes Gallardo , Angelica Silvestre Lopez Rodriguez , Yolanda Cordova Bautista , Lizeth Rojas Blanco , Erik Ramirez Morales , Laura Lorena Diaz Flores , Francisco Ivan Lizama Tzec , German Perez Hernandez
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Gabriel Martinez Pereyra1 , Pio Sifuentes Gallardo1 , Angelica Silvestre Lopez Rodriguez1 , Yolanda Cordova Bautista1 , Lizeth Rojas Blanco1 , Erik Ramirez Morales1 , Laura Lorena Diaz Flores1 , Francisco Ivan Lizama Tzec2 , German Perez Hernandez1* 1Universidad Juarez Autonoma de Tabasco, Avenida Universidad S/N, Zona de la Cultura, Col. Magisterial, Centro, Villahermosa, Tabasco 86040, Mexico. 2Department of Applied Physics, CINVESTAV-IPN, Merida, Yucatan 97310, Mexico. *Corresponding author
MLA 8 Pereyra, Gabriel M., et al. "THERMAL BEHAVIOR OF TWO SOLAR COLLECTORS FOR AIR HEATING: ANALYTICAL STUDY." IJETSI, vol. 3, no. 1, pp. 69-84, ijetsi.org/more2018.php?id=6. APA Pereyra, G. M., Gallardo, P. S., Rodriguez, A. L., Bautista, Y. C., Blanco, L. R., Morales, E. R., Diaz, L. L., Tzec, F. L., & Hernandez, G. P. (n.d.). THERMAL BEHAVIOR OF TWO SOLAR COLLECTORS FOR AIR HEATING: ANALYTICAL STUDY. IJETSI, 3(1), 69-84. Retrieved from http://ijetsi.org/more2018.php?id=6. Chicago Pereyra, Gabriel M., Pio S. Gallardo, Angelica Silvestre L. Rodriguez, Yolanda C. Bautista, Lizeth R. Blanco, Erik R. Morales, Laura L. Diaz, Francisco Ivan L. Tzec, and German P. Hernandez. "THERMAL BEHAVIOR OF TWO SOLAR COLLECTORS FOR AIR HEATING: ANALYTICAL STUDY." IJETSI 3, no. 1 (n.d.), 69-84. http://ijetsi.org/more2018.php?id=6.
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Abstract: In the present work, we report an analysis of the thermal behavior of two suspended flat plate solar collectors for air heating in forced convection. The objective of this analysis is to determine the improvement in thermal efficiency of suspended flat plate solar collectors by applying a selective coating of nanostructured black nickel to the absorber plate in comparison to suspended corrugated plate solar collectors with matte black commercial coatings. In the first collector both the absorber plate and the lower plate are flat; and the upper side of the absorber plate is painted with a selective nanostructured black nickel coating of low emissivity. In the second collector both the absorber plate and the bottom plate are corrugated and perpendicular to each other; and the upper side of the absorber plate is painted with matte black commercial coating. Incident radiation and ambient temperature were measured in clear days over periods of 15 minutes on May 30, 2017 in Cunduacan Tabasco, Mexico. The thermal efficiency and temperature of the different components of the two collectors were calculated and compared at 15-minute intervals. The results show that efficiency was always greater in the first collector which varies from 73.5 to 75.5 %, and in the second collector from 67.5 to 71.5%, showing a minimum difference between both collectors of 4 % at 13:15 hours and a maximum difference of 6 % at 9:15 15:45 hours. This shows that the selective coating of nanostructured black nickel increases efficiency by reducing radiation losses.

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