الفهرس 
MATERIALS AND METHODSOnly 14 pages are availabe for public view
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Abstract
For the shortage of water resources in Egypt and Arab countries, A need to develop low cost technology to deal with seawater as water resource are increased. The objective of this thesis is to study the possibility of producing potable water from seawater using low cost technique depends on concentrated solar rays by mirrors. The study chooses the worst climatic season in Egypt to measure the system capability.
The study erected a pilot plant in Faculty of Eng. pilots open site, ASU designed from acrylic as a low cost long life age and transparent material. The system used 3 concave mirrors and directed to let mirrors receives sunrays and concentrated it on the pilot for the whole sunny period. The measurements for quantities, temperature and TDS for the inlet and outlet waters were made with the measuring of air temperature and sunshine period among the day.
The tests covered three months between autumn and winter to be in the worst climate for the system operation that depends mainly on sun and temperature. The results were good for product quantity and quality in spite of the acrylic use prevent the temperature transfer for its low thermal conductivity which is 20% of glass that affects the product quantity.
The thesis shows that the fresh water quantity is proportional with air temperature and its TDS is between 20-40 ppm even how much the salinity of the influent seawater that ensure the system high efficiency to remove salts. Also, the results show the necessity of use glass instead of acrylic to increase the unit productivity and increase the benefits from the system.