3. Productivity Enhancement of Solar Still Distillation System Using Immersion-Type Water Heater

Water is importance to Earth and living things. Human can survive for a few weeks without food but only a few days without water. Clean and safe water is particularly needed as a source of drinking water. It also needs to be used for various purposes, such as domestic and drinking purposes. Solar distillation process is one of the purification technologies that is sustainable and green technology which can be used to resolve the current problem. This paper presents the efficiency of solar still distillation system integrated with 1000 and 2000 W alternating current (AC) immersion water heater to optimize clean water output. Comparison of the amount of water output between the solar still distillation system with 1000 W immersion water heater (SSA) and the solar still distillation system with 2000 W immersion water heater (SSB) was made. The productivity increased about five times when SSB was used compared to SSA. A numerical analysis was performed to verify the results of the experiment. The water production was expected to increase up to 7.50 L/m² per 24 h when using SSB. Therefore, SSB is more effective than SSA to produce distilled water.