In order to overcome this limitatio

In order to overcome this limitation, the integration of a LD (liquid desiccant) system with IDECOAS (LD-IDECOAS) is proposed to enhance the evaporative cooling effect in hot and humid climate zones. In the LD system, a heating coil is required for regenerating the desiccant solution in the regenerator, and a cooling device is needed to cool the solution in the absorber. One can use conventional mechanical cooling and heating devices for treating the desiccant solution; however, current literature [6], [7], [8], [9], [10] and [11] indicates that solar energy or waste heat recovery can be deployed for the regeneration of desiccant solution. In addition, water-side free cooling using a cooling tower can also be applied for maintaining the absorber temperature, although this method has not been thoroughly evaluated. Katejanekarn and Kumar [10] simulated a solar-regenerated liquid desiccant ventilation system, and then performed experiments to validate the simulation results [11]. They also considered the water-side free cooling provided by a 35.17-kW (i.e. 10 US refrigeration tons) cooling tower.