Problems of energy and fresh water shortage become hard challenges facing survival of the human
beings. Egypt especially is facing increasing of water supply challenges due to population growth. In this
study, a new proposed solar adsorption desalination-cooling (ADC) system is designed, built, and tested
under Egypt's climate conditions. A commercially available silica gel of about 13.5 kg is used. The
Adsorption characteristics of the selected silica gel-water pair are evaluated firstly to design the proposed
system. In addition, a theoretical dynamic model is developed to predict the system performance. A good
agreement is found between the theoretical and experimental results under different Egypt climate
conditions. The results show that, the average specific cooling power is 112 W/kg and average specific
daily water production is 4 m3 per ton silica gel with a COP of 0.45. Based on the obtained results, ADC
system driven by solar energy proven to be an adequate solution to offer proper alternative to the
traditional desalination systems and have promising future in Egypt's climate. However, studies about
improving the performance of such system and new designs are still needed.