Experimental investigation on the performance improvement of double-slope solar still by different shapes of the channel integration.

An experimental investigation has been done for the performance enhancement of double-slope solar still (DSSS) by incorporating channels of different shapes. There are five solar stills including one conventional solar still, and four others modified with square (Sq), rectangular (Rect), triangular (Tri), and trapezoidal (Trap) channel are used. The temperature difference between the channel inlet and outlet, basin, and glass cover was measured at an optimum basin water depth of 2 cm.