Solar Distillator - A Review

The most important aspect for sustaining life on earth is water. In spite of its abundant availability, a small percentage can be used for drinking purpose. There are several techniques available to convert saline or brackish into fresh water like vapour compression, reverse osmosis, electro-dialysis etc. Among these techniques solar distillation is most prominent; it has inherent advantages of low energy consumption. Moreover, it is simpler and more economical than other methods. Different theoretical and experimental studies carried out in the field of solar distillation with green-house effect, have shown that global efficiency of a simple solar still are affected by physical and building parameters, especially by the difference of temperature between the evaporation surface and that of the condensation. Optimizing this difference allows us to obtain a solar still with a better efficiency. In this paper review on solar distillation is done.