Abstract
This work presents a modified solar still with pin fins absorber and external condenser. An experimental comparative study is carried out between the modified solar still with pin fins absorber and condenser, still with pin fins absorber and conventional still. This experimental study is conducted to evaluate the thermal behavior (evolutions of absorber and glass temperatures) and the water production performance of the modified solar still with pin fins absorber and condenser compared to other designs. All experiments are carried out under the meteorological conditions of the region of Gafsa-Tunisia during the days 01/26/2016, 01/27/2016 and 01/29/2016. Experimental results are presented, quantified and discussed to show the utility of the proposed modified solar still.
•Development and description of a modified solar still with pin fins absorber and external condenser.•Experimental comparative study of the thermal behavior of the investigated solar still designs.•Experimental comparative study of the water production of the investigated solar still designs.•Experimental comparative study of the still efficiency of the investigated solar still designs.