A review of efficient high productivity solar stills

T. Arunkumar, Kaiwalya Raj, D. Dsilva Winfred Rufuss, David Denkenberger, Guo Tingting, Li Xuan and R. Velraj

Renewable and Sustainable Energy Reviews, 2019, vol. 101, issue C, 197-220

Abstract: Fresh water is an indispensable resource, which is getting contaminated. The shortage of freshwater has been identified as a crucial issue all around the world. Solar desalination is one of the options to produce fresh water from any type of contaminated water (brackish, contaminated and sea water) in a sustainable way. A solar still is a simple device used to purify the water using solar energy through evaporation and condensation processes. In general, the productivity of the conventional solar still (CSS) is about 2–5 l/m2/day. But this quantity is not sufficient for an individual to lead an adequate life. Hence either more than 1 m2 is required per person or better yet are modifications to improve the yield of the fresh water (likely more than 5 l/m2/day). In this work, an attempt has been made to categorize the different solar still designs with productivity exclusively more than 5 l/m2/day. Here, we identify as such efficient high productivity stills and discuss their novel modifications and heat transfer mechanism to arrive at useful conclusions. This comprehensive review will be a reference guide for future researchers who wish to concentrate only on efficient high productivity solar stills to improve the productivity further.

Keywords: Desalination; Solar stills; Fresh water; Productivity; Efficiency (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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DOI: 10.1016/j.rser.2018.11.013

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