Prototype of a Solar Collector with the Recirculation of Nanofluids for a Convective Dryer

Solar collectors are thermal devices that can trap solar energy and convert it to heat. This heat be used for different industrial applications, example, the drying of food is one most useful applications collectors. work aims design build a collector using nanofluids convective food. The dimensions were 1 m2 by 20 cm with an angle inclination 45°. was composed 9-mm thick tempered glass exchanger in which circulate. Nanofluids designed based on canola oil nanopowders (>50 nm) Al2O3, CuO, 1:1 (w/w) mixture both. Thermal profiles determined differential scanning calorimetry (DSC). temperatures recorded Agricos® unit. maximum air leaving 39.1°C, 44°C, 54°C, 47.1°C oil, mixture, respectively, efficiency 65.09%. An increase outlet temperature observed compared alone