under proper operational conditions. Nafey et al. [2] discussed the effect
of cooling water flow rate on the desalination system productivity at
different values of cooling water inlet temperature. They observed that
by increasing the coolingwater flow rate and decreasing the inlet cooling
water temperature, the surface temperature of the air cooler decreased;
hence the condensation rate and the unit productivity increased. Badran
and Al-Tahaineh [3] studied the effect of coupling flat plate solar collector
on solar still productivity. They found that coupling solar collector with
solar still increased the productivity by 36%. Tarawneh [4] showed
that the deciding role of cooling the glass cover was strongly observed
on the increased temperature difference (glass temperature − water
temperature) as well as on the increased water productivity. The effect
of cooling the glass cover shows an increase on the water productivity
with about 17–23%. Tiwari et al. [5] discussed the effect of water
depth on the daily yield of the active solar still integrated with a flat
plate solar collector. They showed that the yield decreased with the
increased of water mass. Velmurugan and Srithar [6] showed that an
enhancement in productivity of the still can be increased by introducing
a sprinkler (Cooling film) to the outer layer of the glass cover of the still.
This modification will increase the productivity by 22%. Omara et al. [7]
presented a new hybrid desalination approach comprising of evacuated
solar water heater, jut geotextile and solar still. An evacuated solar
water heater is integrated with the desalination stills to evaluate the
continuity production of distillate. Water productivity was increased by
114% over conventional still for double layer square wick (DLSW) solar
still at 30° base slope angle. The daily average efficiency of DLSW was
71.5%. During experimentation, the distillatewater productivity increased