Water Purification Using a Solar Still Coupled With Evacuated Tube Collector

There is an urgent need of clean, pure drinkable water. Often water sources are brackish and or contain harmful bacteria and therefore cannot be used for drinking. . Pure water is also needful in some industries, hospitals and schools. Distillation is one of many processes that can be used for water purification. Solar radiation can be used as the source of heat energy. In this process, water is evaporated and thus separating water vapour from dissolved substances, and is then condensed as pure water by using a still integrated with ETC (Evacuated Tube Collector) then the performance analysis is calculated and is compared with passive still. It was found that the amount of distilled water from still with ETC is more than that from a passive one.