Efficiency, Productivity and Economic Analysis of Polystyrene Foam–insulated Conventional and Modified Double-Slope Solar Still Using Nanofluids
Environmental Science and Pollution Research(2025)
K.Ramakrishnan College of Engineering
Abstract
This work presents the effect of adding copper oxide (CuO), aluminium oxide (Al2O3) and zinc oxide (ZnO) nanofluids towards distillate yield enhancement in the conventional and modified polystyrene foam–shielded single-basin double-slope solar still (DSSS). Nanoparticles are included to enhance the evaporative and thermal properties. Conventional and modified double-slope solar still of similar features were produced using aluminium sheets and an experimental analysis was performed in sunny days. Solar-activated vacuum fan and external condenser are incorporated in conventional DSSS and termed as modified DSSS. Integrating condenser and solar-actuated vacuum fan in the DSSS significantly reduces the heat loss attained due to convection. Results signify that using ZnO, Al2O3 and CuO nanofluids with 0.1
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Key words
Solar-operated vacuum fan,External condenser,Nanofluids,Double-slope solar still,Production rate
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