Hybrid Cooling Tower For A Solar Adsorption Cooling System: Comparative Study Between Dry And Wet Modes In Hot Working Conditions

This study investigates the applicability of a hybrid cooling tower (HCT) of solar adsorption air-conditioning system in the hot working conditions of the region of Biskra, Algeria. A calculation method is presented to size the cooling tower and to define the main characteristics of the sprayed water. In addition, the effect of the ambient and humid temperatures on the heat transfer coefficients and the total heat transfer area were determined for both dry and wet modes. Results were compared with experimental measurement obtained from the literature, and good agreement was found. It has been concluded that the wet mode presents an effective solution for the region of Biskra. The ambient operating temperature limits of the cooling tower can be increased from 33 to 51 degrees C, respectively, for the dry and wet modes. Besides, it was found that the maximum mass flow rate of sprayed water is about 0.036 kg s(-1) which is sufficient to operate the cooling tower and consequently the solar adsorption system.