Multi-Effect Passive Desalination System, An Experimental Approach

Solar stills are very simple to construct and to operate but their efficiency and productivity are fairly low. To increase the yield from stills different methods were adopted. In this paper, an experimental investigation on single and double effect desalination systems are reported and effects of some parameters such as water depth, input radiation intensity and salinity on the productivity of the system is discussed. Increase in water depth in the basins, decrease in the radiation intensity and increase in the salinity reduces the system production rate. Using a passive double effect desalination system increases the yield of the system considerably.