الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The hot climate is one of the problems facing many countries in the world. Therefore, providing the inhabitants of such areas with an ideal solution to ensure comfortable conditions is a great issue.
The evaporative cooling, as a potential alternative to the conventional
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compression systems, has drawn great attention for building cooling applications. The evaporative cooling technique has the benefit of conditioning the air by taking the advantage of liquid water evaporation as a result of heat absorption from air to achieve the air cooling effect. The evaporative cooler system has several advantages such as; the energy cost saving, simple system configuration, reducing the pollutants release as well as the easily incorporation with other systems. The evaporative cooler was the subject of numerous researches to improve its efficiency and overcome its common problems through the development of new types of pads and different designs.
This study focuses on the improvement of the characteristics and the efficiency of the evaporative cooler by fabricating the pad from the cellulose acetate nanofibers via the electrospinning technique, to take advantage of the high surface area of the nanofibers, which allow better water evaporation.
Different factors were investigated, regarding the electrospinning process such as the distance between the needle and the mesh (10-18 cm), the applied voltage (15-25 kv) and the solution electrospinning rate (2-40 ml/hr). Two types of meshes (aluminum and plastic) were used in the electrospinning of cellulose acetate nanofibers. The aluminum mesh proved to be more effective than the plastic one regarding the quality and the homogeneity of the nanofibers formed. The morphological structure and the size of the nanofibers.