Author(s): Maral M Hussein, Maha H Ghafur and Mahmood H Khaleel

Abstract: Water scarcity, droughts, low rainfall rates, and depletion of groundwater to compensate for the water shortage, all lead to thousands of wells being out of service because of drought, and cause the spread of the phenomenon of desertification that threatens the social and economic stability of many societies in the world. Accordingly, there is an urgent need to find additional sources of water security. The water shortage requires researchers to work to find new sources of fresh water, either from the air or through the desalination of salt water. But both methods are expensive. However, obtaining water through desalination requires a constant source of salty water, while extracting fresh water from atmospheric air can be obtained anywhere on Earth. The atmosphere is a renewable and abundant source of water. The moisture content of the air exceeds ten grams per cubic meter, even in desert areas, and this huge amount of water in the atmospheric air remains constant. According to research, the process of condensing water vapor from the air to obtain pure water is not new, but it is considered high cost. However, the idea of using renewable energies (solar and wind energy) to provide the free energy necessary for the operation of the proposed water extraction systems is correct, making this a worthwhile solution for securing the water necessary for drinking and domestic consumption. In this research, we studied obtaining water from atmospheric air by using renewable energies (solar energy in providing the energy needed for an absorption refrigeration circuit, and wind energy in operating a compressor for a Freon refrigeration circuit). This is done through the evaporators of these two circuits that are placed in a tunnel through which flows the air that, upon contact with the cooling coils (evaporators), experiences a temperature drop below the dew point, and thus the water vapor it contains condenses. The effect of changes in input parameters on the amount of water extracted was studied.

Pages: 01-08 | Views: 281 | Downloads: 163

Download Full Article: Click Here