The effect of the number of fins in a solar-powered seawater distillation apparatus on fresh water production

One way to produce fresh water is by using the principle of solar distillation. However, this method still has very limited freshwater yields. For this reason, it was necessary to study the absorber with varying numbers of fins. A solar distillation apparatus with a total size of 110.5 cm x 80 cm, a front height of 21 cm and a rear height of 52.5 cm had been tested with absorbers that was varied in the numbers of fins, namely without fins, 10 fins, and 15 fins. The seawater level above the absorber was kept constant and the same for all three distillers. The test results show that the absorber without fins produces 1.18 kg of freshwater per day, the one with 10 fins produces 1.24 kg and the one with 15 fins produces 1.38 kg. Therefore, based on the results of the largest freshwater mass, the distiller with 15 fins is the best.