Solar Energy to Water Desalination: Long-Term Experimental Studies of Solar Still in Poland

Łukasz Mika and Ewelina Radomska ()
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Łukasz Mika: Department of Thermal and Fluid Flow Machines, Faculty of Energy and Fuels, AGH University of Krakow, al. A. Mickiewicza 30, 30-059 Krakow, Poland
Ewelina Radomska: Department of Thermal and Fluid Flow Machines, Faculty of Energy and Fuels, AGH University of Krakow, al. A. Mickiewicza 30, 30-059 Krakow, Poland

Energies, 2025, vol. 18, issue 5, 1-20

Abstract: Water scarcity is an escalating global issue which also affects Poland. One of the solutions to this challenge is seawater desalination, particularly using solar stills (SSs). SSs offer a sustainable, low-cost solution for desalination, but their efficiency depends mainly on local solar conditions. Therefore, this study presents long-term experimental results for a single-basin, single-slope SS’s performance in Krakow, Poland, from May to September 2022. The findings show that the SS effectively removed over 98% of total dissolved solids, with a productivity ranging from 1084 to 5014 mL/(m 2 ·day) and water temperatures reaching up to 80.4 °C. These results highlight the feasibility of solar-powered desalination in Poland and contribute valuable data for future optimization.

Keywords: solar energy; solar still; water desalination (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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