Dynamic Simulation the Effect of Triangular Fin Height on the Adsorption Performance of Ethanol-Activated Carbon in Fin and Tube Adsorber Bed

Applying adsorption phenomena in refrigeration systems can prevent environmental pollution due to the use of refrigerants. It also could reduce electrical energy consumption compared to conventional refrigeration systems. However, the adsorption refrigeration system exhibits inferior performance compared to the traditional one. Therefore, many efforts have been made to enhance the performance of the adsorption refrigeration system. In this research, modifications to the adsorber bed geometry are carried out to improve performance using the simulation method. The adsorber bed used is finned and tube-shaped, with alterations in the form of a triangular fin with variations in fin height. The fin height variations applied are 6, 7, 8, 9, and 10 mm. The results of this study include temperature, pressure, kinetics, and adsorption capacity. The results showed that decreasing the height of the triangular fin from 10 mm to 6 mm can reduce the temperature of the adsorber bed by 17.47%. At the same time, the pressure, kinetics, and adsorption capacity will increase by 0.85%, 21.17%, and 2.86%, respectively. As a result, lowering the fin height can improve the adsorption refrigeration system’s performance.