Evaporative Air conditioning units

 Evaporative Air conditioning units used for decades and called desert air conditioner that was

only used on dry areas such as Aswan in Egypt and expanding its used after has been developed so that it is cooling air without increasing the proportion of moisture content through evaporation indirect, and for the first time the production of units for cooling water evaporating system and the transfer of this cooled water to central air conditioners units or rooms air conditioning units ( a similar system to the traditional system of chilled water system ) Evaporative cooling system after its development has several advantages , including :

1- save 90% of the electric power compared to conventional systems , which achieve  operating cost savings and at the general level provides about 400 MW in Cairo alone , where central air conditioning loads and semi - central loads in Cairo about 450000 tons of refrigeration

 Provided in the cost of construction , about 50% 2-

3- Provided in foreign currency where all components of the systems locally   

manufactured ( provided about one billion USA dollars annually ) enhance economy

4- The system achieves 100% outside air in conditioned place that is a very advantage specially in public areas such as

Factories , Theaters , Banks and waiting rooms in hospitals and places of worship , Restaurants and Exhibition halls , this percentage has become necessary attributes of some countries to prevent the spread of infection in public places

 5- Save the value expansions construction networks and power plants

It should be noted that the air conditioning system design 100% outside air to be thermal loads less than 50% due to the cancellation of latent heat load and lighting load and ceiling load which are  pulled from exhaust air and it does not need to reduce the degree of temperature of water cooling coil below the temperature of the dew-point to condensate the water vapor in conditioned place as well as temperature of conditioned place can be 26 c with increasing air velocity to become sensible temperature less and up to 20 c as mentioned ASHRAE Book ( ASHRAE FUND. CH. 8 ) has been the implementation and operation of this system in Egypt - Cairo in Eastern company ( under the supervision of a committee of the National Research Center) and many sites

Finally the units are available in different capacities from 5 tons up to 100 tons of refrigeration attached some pictures to illustrate

and yours MOHAMED AHMED AL SHRIEF