الفهرس 
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Abstract
Egypt is currently facing vital water and energy problems which arise the need for cleaner and more economical alternatives. This book touches briefly on prevalent solution keys to these problems in Egypt. District cooling systems utilizing adsorption technology could potentially be the unconventional solution that is needed to solve both the water and energy crises that we undoubtedly face in Egypt and all over the world. As an alternative to the conventional cooling vapor-compression systems, adsorption-based cooling systems present an environmentally friendly and energy saving solution. Moreover, using seawater as the refrigerant, the process of evaporation and condensation induces a desalination effect in the evaporator along with the condenser, which results in the production of potable water. An extensive literature review was done to get familiar with some new definitions such as adsorption, delve into detail about some already familiar concepts such as different refrigeration cycles, and also explore and gain an understanding in the processes of desalination and the concept of district cooling systems. After that, a feasibility study was made to assess whether or not adsorption-based cooling systems are a viable solution from both the cooling and desalination perspectives. The system was designed by starting with a mathematical modeling stage, where heat transfer equations were used to optimize the sizing of the system components for the required cooling capacity. Then, the design constraints and requirements were identified, which led to finalizing the components’ conceptual design. This technology is environmentally friendly as no chemicals are used to clean adsorbents. It has low corrosion and fouling rates on the tube materials due to the low temperature evaporation of the saline water and it renders inherently low maintenance cost. It’s also manufactured easily and economically with local facilities which made it very suitable for remote areas such as new coastal cities.