A scoping review of solar stills technology for drinking water production

Solar distillation is known to have low productivity. This paper ventures to investigate efforts by researchers to arrive at a breakthrough in obtaining higher yields in solar distillation. The performance of any solar still can only be judged by its resultant yield of distilled water. The common goal of researchers in the field is the optimisation of various parameters, in order to obtain higher still productivity. Optimisation of solar still performance has been attempted by manipulating the heat transfer processes of solar radiation reception, utilization by evaporation, condensation and noteworthy the capillary action that occurs between both. There is further scope to be explored on the enhancement of solar distillation stills as identified in this paper.