A solar still desalination system with enhanced productivity

George M. Ayoub, Mahmoud Al Hindi, Lilian Malaeb

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Abstract: Increasing the productivity of solar stills has been the focus of intensive research. Many introduced developments, however, require complex components and entail notable increases in cost and land requirements. Developing a compact, productive, and easy-to-operate system is a main challenge. This paper describes a sustainable modification of the solar still that significantly enhances its productivity without forsaking its basic features. A simple amendment in the form of a slowly rotating drum is introduced allowing the formation of thin water films that evaporate rapidly and are continually renewed. The performance of this system was compared against a control without the introduced drum. Throughout the experiment, the new system gave considerably higher yield than the control with an average increase in daily productivity of 200%. Moreover, during sunshine hours, the increase in yield could surpass 6–8 times that of the control. Important parameters such as ease of handling, material availability, efficacy, low cost, safe water quality, and space conservation are maintained. One side-benefit of this design is solving stagnation problems that usually develop in conventional stills. The new simple modification in this study presents a cost-effective and efficient design to solar stills especially in areas with abundant sunshine.
Original languageEnglish (US)
Pages (from-to)3179-3186
Number of pages8
JournalDesalination and Water Treatment
Issue number12
StatePublished - Jul 30 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors would like to acknowledge the Lebanese National Council for Scientific Research and the Middle East Desalination Research Center, Oman for financially supporting this work.

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering


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