Abstract: To investigate the heat and mass transfer process inside the zeolite water adsorption bed, a two dimensional model has been established for the second class boundary condition. With this model, effects of the number and materials of the fin, the effective thermal conductivity of the bed and the contact heat resistance on the performance are studied. The results show that the fin can greatly improve the performance, and the number of fins and the contact thermal resistance play an important role, but on the other hand the material of the metal fin is less important.

Key words: adso rp t ion coo ling, zeo lite-w ater, heat and mass t ransfer, model