Experimental Investigation to study the effect of coupling a flat plate solar collector on the productivity of
solar stills was carried out. Other different parameters (i.e. water depth, direction of still, solar radiation) to
enhance the productivity were also studied. Single slope solar still with mirrors fixed to its interior sides was
coupled with a flat plate collector. It has been found that coupling of a solar collector with a still has increased
the productivity by 36%. Also the increase of water depth has decreased the productivity, while the still
productivity is found to be proportional to the solar radiation intensity.