Performance of Physico-chemically Activated Carbon in a Single Chamber Pressure Swing Refrigeration System

This paper emphasizes on the enactment of a physico-chemically activated carbon (PCAC) in pressure swing adsorption (PSA) system for generation of cooling effect towards replacement of halogenated refrigerants. CO2 and carbon activated with steam followed by phosphoric acid was investigated as the working pair in the PSA system. Surface area and micro-pore volume of PCAC were 1014.2 m2/g and 0.6563 cm3/g respectively. The coefficient of performance (COP) and refrigerating effect were observed to be 4.315 and 134.08 J/s respectively using 600 grams of PCAC. Results revealed that the dual-stage activated carbon could be a potential adsorbent in PSA system towards significant cold production.