الفهرس 
Desalination History
LITERATURE SURVEYOnly 14 pages are availabe for public view
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Abstract
This thesis investigates the performance of an Humidification-Dehumidification Desalination unit with an extra condensing surface on the evaporator of a (HDH) refrigeration unit. The effect of several parameters such as the type of packing material, the water flow rate, the temperature of water, the air flow rate, and the air temperature on the unit production of desalinated water were studied.
An experimental setup was used to perform experiments using several packing materials namely: cellulose, clay balls, and saw dust. The water temperatures introduced to the shower was 27 °C, 50°C, and 80 °C. The air temperature was varied to be 37 °C, 65 °C, and 90 °C, using a set of heaters. The air flow rate was changed by a volume damper between three different settings. The water flow rate was changed using the inlet valve to take the values of 150, 300, 450, and 600 kg/hr.
The effect of these parameters on the production rate was studied. And from the results, it was found that the use of cellulose paper led to the highest performance followed by the clay balls packing. While the poorest performance attained, saw-dust was used as packing. Also, the increase in water mass flow rate causes the production rate to decrease.