Abstract
Characteristics of simple desiccant elements which constitute air flow channels separated by a thin desiccant sheet have been studied theoretically. The flow channels for treating air lie at right angles to that of drying air. Adsorption and desorption of humidity are conducted on both sides of the desiccant sheets simultaneously. Effects of treating and drying air flow rates, diffusion resistance of humidity in the desiccant sheets and air flow channel length on dehumidifying and temperature and enthalpy exchange efficiencies have been analyzed.