Theoretical and experimental investigation of double slope solar still with channel integration: Energy, exergy and water quality analysis

Thavamani Jeyaraj and Pankaj Kumar

Renewable and Sustainable Energy Reviews, 2023, vol. 188, issue C

Abstract: The present work focuses on the influencing factors for the performance enrichment of solar still, which serves as one of the sources of cleaner production of freshwater in a hot environment. This enrichment in yield has been achieved through channel attachments and optimized water depth. The different positions of interior and exterior temperatures are measured and compared with/without the channel attachment of the solar still. The results reveal that the water yield from the double slope is found more with channel attachments in the solar still at the minimum water depth of 1 cm. The different month yield rates are compared with and without channel attachment. Furthermore, the theoretical exergy analysis has been conducted for various components of double slope solar still and compared with experimental findings. The yield rates for 1 cm basin water depths in March, April, and May are as follows: for the modified system - theoretical rates of 2.490, 2.760, and 2.900 L m−2 and experimental rates of 2.285, 2.530, and 2.770 L m−2; for the base system - theoretical rates of 2.090, 2.200, and 2.475 L m−2 and experimental rates of 1.920, 2.110, and 2.270 L m−2. In comparison to the basic system, the modified DSSS yield rate increased from 6.66% to 22.02%, and the exergy efficiency of the DSSS with and without a channel attachment are 8.42% and 4.14%, respectively. The present method can be adopted to solve the drinking water shortage problem at hot environments.

Keywords: Double-Slope solar still; Channel; Exergy analysis; Solar energy; Productivity (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.rser.2023.113779

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