EFFICIENT DESALINATION BY LAYERED HEATING OF SALINE WATER: A review

Thin layer heating technology for desalination is one of the topics that is catching eye of many researchers recently. The sun is a very good renewable energy source that can solve many human being’s problems such as water scarcity. Solar energy can be utilized for water desalination. Nowadays, parabolic trough collector and dish reflector and other optical concentrators are used to concentrate the solar radiation to get more power. They are complex and costly. Efficiency of basin type solar still and other conventional solar still is decreases as we increase water quantity, due to the heat loss to water. Due to this reason need of solar desalination devices that use localized heating of a thin layer of water. In the past few years, significant research is done for the developing thin layer heating desalination. In this review, basin type solar still is discussed, properties of wood and titanium dioxide materials for substrate and absorber have been discussed. Recently developed desalination devices are studied and how desalination is carried out by using absorber and substrate is discussed.