A two-dimension numerical model is proposed to describe the heat andmass transfer in a fixed bed of solid adsorbent for adsorptive refrigeration. The fixed bed of dimensions 0.5 × 0.5 × 0.082m3

has internal heat transfer fins 0.075m high and 0.001m thick

0.49m long

and fin to fin distance 0.03m. In this model the following assumptions are made: the heterogeneous solid adsorbent is treated as equivalent continuous medium ;convective heat transfer in vapour phase is neglected; the pressure is considered as the same at every point inside the fixed bed; and the resistance to heat transfer from fins to solid adsorbent is also taken into account. A set of partial differential equations

based on mass conservation and energy conservation are built up. The equations are solved by using finite difference methods of purely implicit schema. Furthermore

an experiment was conducted to validate the model. In the experiment

13kg activated carbon was used as adsorbent and methanol as adsorbate. It was found that the experimental results were in agreement with the calculations.