Abstract

Abstract: There is almost no water left on earth that is safe to drink without purification after 20-25 years from today. This is a seemingly bold statement, but it is unfortunately true. Only 1% of Earth's water is in afresh, liquid state, and nearly al of this is poluted by both diseases andtoxic chemicals. For this reason, purification ofwater supplies is extremely important. Keeping these things in mind, we have devised a model which wil convert the dirty/saline water into pure/potable water using the renewable source of energy (i.e. solar energy). The basic modes of the heat transfer involved are radiation, convection and conduction. The results are obtained by evaporation of the dirty/saline water and fetching it out as pure/drinkable water. The designed model produces 1.5 litres of pure waterfrom 14 litres of dirty water during six hours. The eficiency of plant is 64.37%. The TDS(Total Dissolved Solids) in the pure water is 81ppm.

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