Experimental Investigation of a Single Slope Solar Still Performance- Evaporation Process Enhancement

Abstract

The productivity of single-slope solar still is limit due to limited amount of solar energy absorbed, and that directly affected the evaporation process. For enhancing the evaporation in solar still, two ways are experimentally investigated. The first, a specially designed solar collecting tank is used to pre-heat raw water before it inters the basin of still. The second, two sizes of iron wicks are used to increase the area of solar absorbing element inside the still. The results show that the still productivity enhanced by 86.65 % and 72.53 % in deferent types of wicks, and about 48.83% by solar collecting tank compared with conventional solar still.