Investigation of the Effect of Changing Water Heights on the Performance of a Solar Distillation System Using Crushed Porous Coal Rocks

The solar distillation system becomes necessary to treat the salt water and replace it with pure water, especially in areas of outlying rural. There are many methods that can be followed to improve the distillation system, one of these methods applied in the present work is using crushed porous coal rocks compared with traditional solar distillate systems. The present work included two parts; numerical and experimental. The experimental parts included a set of experiments with and without using crushed porous coal rocks and with changing of the water height above the endothermic surface by (10, 20, and 30) mm. The numerical simulation was carried out by using ANSYS FLUENT programming to solve the governing differential equations (continuity, momentum, and energy) to validate the results of numerical simulation with experimental data. The results proved that using crushed porous coal rocks as an endothermic surface at 10 mm water height was given the best results compared with the traditional solar distillate system, depending on the amount of water collected outside the solar collector.