Published Paper Details:

In recent decades, as a result of climate change and mismanagement, water scarcity and drought have become more frequent, affecting both humans and biodiversity drastically. Alternative, new technologies were urgently needed to overcome the rapidly increasing global water scarcity. Atmospheric dew water is a potential source of potable water, as the earth's atmosphere contains thirteen thousand trillion litres of fresh water (98% in a vapour state). The stainless steel single-shelf solar pyramid system was here to extract water from the atmospheric air by using different types of hygroscopic materials placed on the shelf. The hygroscopic materials are silica gel, calcium chloride, and rice. The pyramid sides were opened at night to allow the moist air inside from the atmosphere and closed during the day to extract the moisture from the material by solar radiation. The experimental study was investigated to study the effect of the stainless steel pyramid shape on the absorption and regeneration processes. Preliminary results have shown that the calcium chloride absorbs more water from the atmosphere as compared to the silica gel and rice.