Abstract: The dynamic performance of the adsorption refrigeration system driven by engine exhaust heat was theoretically studied. Based on the linear driving force (LDF) mass transfer model, a two-dimensional non-equilibrium adsorption coupled with heat and mass transfer model was proposed for the zeolite/foam aluminum composite adsorbent-water adsorption refrigeration system, and the equations were solved with control volume method. Then, with some typical operating conditions of automotive engine in actual, the performance of the system with an engine speed from high to low, low to high and suddenly changing conditions was simulated and analyzed. The results show that the adsorption refrigeration system used in automotive air-conditioning can adapt to the changing working conditions of motor vehicles through the adjustment of cycle time.

Key words: adsorption refrigeration, automotive air condition, dynamic simulation, zeolite/foam aluminum