Cherraye, RidhaBachir, Bouchekima2023-05-142023-05-142020-06-19Cherraye ,Ridha. Bouchekima, Bachir. Experimental Investigation of the Effects of Preheating on Still Productivity. International Journal of Energetica. Vo5. No 01.20/06/2020.faculty of technology. university of el oued. [visited in ../../….]. available from [copy the link here]2543-3717http://dspace.univ-eloued.dz/handle/123456789/22801ArticleSingle basin solar still (SBSS) has low productivity in this experimental research, some techniques have been employed to solve this problem, these techniques consist of using a flat plate collector. The main aim of this research was to make efficient use of the flat plate collector (FPC) to increase solar still productivity, and it works as a hybrid device. The model solar water heater for the flat plat collector (FPC) was coupled with a solar still, and the tests were repeated in 3 to 5 winter days, and the results were measured in the same way for each day. The results revealed that the productivity of the still increased 87 % when coupled with one, and decreased 20 % and 50 % when coupled with two and three flat plate collectors in southern Algeria, respectivelyenSolar energy, solar desalination, solar still, flat plate collector, productivityArticle