Parameters Affecting the Efficiency of Solar Stills—Recent Review

Although water is the second most important fluid, after air, found on Earth, there a vital problem in availability of for many organisms, and this faces whole world. As result, scientists have developed methods purifying saline/brackish to be suitable different uses addition purpose drinking. Fortunately, solar distillation very rewarding terms operating costs liter freshwater distillated with using clean environmentally friendly energy. Solar distiller one systems devices, which simple construction, cheap, easy use but it has drawback low productivity. This article aims provide summary ideas works stills through variables that affect performance distillers. In contrast review papers dealing topic, paper contains comprehensive complete details careful reviews all Therefore, like ladder front authors until they reach recent what been studied distillers simplified way save time effort, will help them come up were not easily studied. Thus, introduces an overview detailed parameters affecting stills. These are climatic, design, factors. Climatic factors consist radiation, ambient temperature, air speed, dusty cloudy weather. While design include evaporative exposure surface areas, glazing cover material, inclination, thickness, insulating material thickness. Whist, feed applying vacuum, temperature difference between glass cover, hybrid systems. From extensive literature, concluded significantly still. Finally, some points proposed further investigation.