Design Construction and Performance Evaluation of Solar Still for Rural Dwellers

Safyanu Bashir Danjuma, Aliyu Mohammed Lawal, Shuaibu Muhammd Ibrahim, Ojonimi Yusuf Usman


This paper is aimed at designing, constructing and performance evaluation of a solar still. The solar still is design and constructed with locally source materials for rural dwellers. The still absorber plate is constructed with 2 mm galvanised plate painted black with an area of 2 m2 to absorb solar radiation effectively. The side wall and the base is constructed with concrete. Sawdust and felt is used between the retaining wall and base to resist heat transfer from the system to the surrounding vice-versa. The top cover of the still is constructed with transparent glass pane of 4 mm housed in an aluminium frame. The catch basin that collects the condensate is constructed with PVC pipe channel of 50 mm. The performance of the still was evaluated with; Overall yield (sum of daily yield and over-night yield) at a different water depth of (20, 40, 60 mm), (5127 ml/m2/hr, 4558 ml/m2/hr, and 3852 ml/m2/hr). The efficiency of the system at different water depth (20, 40, 60 mm) 51.27 %, 45.58 %, and 38.52 %. The water analysis before and after distillation was certified safe and portable for human consumption.


solar still; construction; performance evaluation; design; efficiency

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Copyright (c) 2018 Safyanu Bashir Danjuma, Aliyu Mohammed Lawal, Ibrahim Shuaibu Muhammad, Ojonimi Yusuf Usman

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