The demand for drinking water in certain parts of the world exceeds supply capacity due to various reasons. By using hygroscopic materials that harness solar energy, it is possible to supply very hard-to-reach and arid areas without the need for electricity. With the development and upgrading of such technologies, the problem of drinking water supply is becoming less significant. In our work, we presented the key influential parameters in the design of such technologies, developed a mathematical model, and compared its accuracy with experimental results. The experiment was conducted in two stages, where we compared the impact of using polyethylene film on the desorption process. With appropriate ambient parameters and the use of polyethylene film, the speed and amount of water desorbed from the hygroscopic material can be improved.
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