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ABSTRACT
In this article, an attempt has been made to extract water particles from atmospheric air by using silica gel, molecular sieve13× and activated alumina. The cycle consists of two phases, first is a nocturnal phase (night) and other is a diurnal phase (day time). In the nocturnal phase, adsorption process takes place, regeneration and condensation processes take place in the diurnal phase. The water production rate depends upon the regeneration rate of the material. A newly designed fixed focus Scheffler reflector of surface area 1.54 m2 is used to regenerate the desiccant materials. The water produced from this method is clean and can be used for potable purposes. The production rate of water is 43, 38 and 155 ml/day from 1 kg each of the molecular sieve, activated alumina and silica gel, respectively; furthermore, the adsorption rate, regeneration rate and cost analysis are also carried out.
Disclosure statement
No potential conflict of interest was reported by the authors.