Solar water distillation by wick-type solar stills: a review.

Abstract

The demand for freshwater is exponentially rising in today's society, with industrial and manufacturing growth resulting in increased pollution of environmental assets. Therefore, one of the primary challenges for researchers is to produce freshwater using straightforward, inexpensive technology. Around the world, there are various arid and desert areas where ground water is scarce and rainfall is less common. The majority of the world's water sources, including lakes and rivers are brackish or saltwater, making them unsuitable for irrigation, drinking, or even basic household needs. Solar distillation (SD) overcomes the gap between the scarcity and productivity of water. The SD is a technique for purifying water that yields ultrapure water that is superior to bottled water sources. Despite the fact that SD is a straightforward technology, due to its large thermal capacity and lengthy processing times, productivity seems to be low. Researchers have endeavored to create several designs of stills in order to increase yield and have concluded that wick-type solar stills (WSSs) are efficient and effective. When compared to a traditional system, WSS improves efficiency by around 60%. Installing a multi-wick basin-type inverted absorber solar still (MWBIASS) delivers an instantaneous energy efficiency, destroyed exergy percentage and annual cost per kilogram of yield approximately 50.59%, 84.73%, and Rs. 0.91 (0.012 US$), respectively. This comparison review serves as a resource for prospective researchers looking to enhance the performance of WSSs while focusing on the most adroit aspects.