Experimental performance analysis of single slope single basin solar still with extended pin fins basin liner in summer and winter climatic conditions

In this work, the conventional single slope, single basin solar still and modified single slope, single basin solar still with extended pin fins basin liner was fabricated and experimentally investigated in summer and winter climate at Rewa (Lat. 24 degrees 33' 20.81 '' N). The modified basin liner was prepared by 2.5 cm long and 0.18 cm diameter mild steel pins which were vertically inserted in the basin liner sheet of mild steel. Each pin was kept at a distance of 1.5 cm from the adjacent pin. The basin liner with pin fins was painted black so that more and more solar energy could be absorbed. The daily productivity values of modified pin fins basin liner solar still during summer and winter were obtained as 4.375 Kg/m(2) and 2.565 Kg/m(2) respectively. It has been observed that in the modified solar still, 13.2 % more distillate output is obtained than conventional solar still in both summer and winter climate. The increase in the productivity of modified solar still is due to increase in the surface area of basin liner.