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Authors :
Abstract : In this paper, different design modifications were added to the traditional single slope solar still to improve the distilled water production. The design modifications were introduced to the traditional single slope solar still, involving the installation of the external mirror at the upper side of the solar still to collect and reflect the sunlight into the basin, coupling the solar still with the manual one-axis tracking system, the addition of collection mechanism for condensed water at the inner side of the glass cover, adding of PV generator-powered heating coil, and step-wise basin. An experimental study was conducted to investigate the effect of adding together the above-mentioned five modifications on the parameters of the traditional single slope solar still. The results pointed out that, the total collected water from conventional solar still was 0.952 L/d/m2 and from the modified still was 3.251 L/d/m2 on the typical winter day. The productivity of the modified solar still was greater than the conventional solar still by 242%.
Keywords : Solar distillation; Single slope solar still; One axis manual sun-tracking; Collecting element; Heating coil; External mirror
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