In many regions in the world, the climate conditions are suitable for generating drinkable water; however, they have one or more types of water scarcity. An alternative method for fresh water recovery from atmosphere had been studied in this paper. The studied method is designed for Arabic Gulf countries or similar by using solar-based thermoelectric generator utilisation. The existence of solar energy and humid air gives a good chance for effective productivity. Nowadays, the mathematical model is able to give a good representation of the different cases. The use of recent numerical modelling is robust enough to give accurate results with cost and time saving. For simplification; the cases in this paper were supposed to be the fluid flow region, it means that the simulation will not be involved in the multi physics. The cases have been simulated in 3D using commercial CFD software called Star-CCM+. For the proposed system, four parameters were studied, which were the pressure drop over the flow bath, the water productivity per square metre as the goal parameter and the influence of ambient temperature as well as humidity. The ambient conditions were considered as the design parameters. The three different climatic regions are Red Sea, Arabic Gulf, and southern Europe (south Spain). Only summer climatic conditions are considered. It is found that the pumping power required for air fan did not exceed 9.1 W. Fresh water productivity of the unit was up to 3.9 L/h/m 2 .

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