Abstract
A high pressure adsorption refrigeration cycle, which uses activated carbons as adsorbent and low GWP refrigerant (R 1234ze) as refrigerant, was proposed and the theoretical performance was investigated by static analysis. The coefficient of performance (COP) of multi-stage cycles was compared with that of single stage cycle under the desorption temperature of 80-120℃, adsorption/condensation temperature of 50℃, and evaporation temperature of 15℃ The medium pressure levels of the multi-stage cycles were optimized to maximize the COP. It was shown that two stage cycle had advantage in theoretical COP with desorption temperature lower than 100℃.
