A Review of integrating solar collectors to solar still

Water is one of the important sources for the survival of living species on the earth. As earth having only a small amount of water resources for drinking purpose people in rural and urban areas are getting affected by consuming contaminated water that leads to water-borne diseases. Even ground water has to be properly treated before its use for internal consumption. Salt water contains dissolved and undissolved contents and hence it is not suitable for domestic purpose (cleaning, washing, bathing, etc.). This paper completely deals with the detailed review of a solar still integrated to solar collectors for augmenting the yield of fresh water. However, these methods appear to be uneconomical to the middle and low-income families. The yield, economic aspects and payback period of different solar still are reviewed, and a possible conclusion with the integration of low-cost solar water heater and nanofluids in solar water heater are arrived.