Conception of a Solar Air Collector for an Indirect Solar Dryer. Pear Drying Test.

摘要

This paper presents a new conception of the absorber of a solar air collector for an indirect solar dryer. This absorber consists of two corrugated aluminium plates. The two corrugated plates are fixed to form parallel cylinders allowing air to circulate along the collector. Experimental tests for pear drying were carried out at Solar Energy and Environment laboratory, Faculty of Sciences of Rabat. The results thus obtained, reveal that after 24 hours of drying, the mass of samples was reduced from 997.3 g to 135.13g. The average thermal efficiency of the drying chamber was observed to be 11.11 %.