Energetic behavior study of a direct solar dryer under different climate in Morocco

In this paper, we studied the variations of the incident and /or transmitted energy, received by a direct solar dryer (DSD), as well as the influence of dryer’s dimensions on these energies for different climates of Morocco. Our study focused on the influence of the site’s climatic specificity and the dryer’s shape on solar energy collected or transmitted through comparison between its performances for several geometries. For various periods of the year, three Moroccan sites were selected for this study: Rabat (Latitude 34°00’47” N, Longitude 6°49’57” W), Tetouan (Latitude 35°34'42” N, Longitude 5°22’06” W) and Fez (Latitude 34°03'10” N, Longitude 4°58’58” W). Analysis of the dryer geometry and season effect allowed us to consider geometric scenarios of the solar dryer, which has led us to find an optimal design able of receiving a maximum of daily solar energy.