2. Experimental setup
Due to the portability of solar still, allwalls were made of 6 mmPlexiglas.
A schematic diagram and a photograph of the still are shown in
Fig. 1 and Fig. 2. The bottom side of the solar still is a black Plexiglas to
absorb the maximum solar radiation. The condensing zone consists of
an inclined and a horizontal region. The inclined region has the same
material and the same thickness as walls, and it is positioned at the