Conference Year



electrochemical compressor, hydrogen, ammonia


To improve the efficiency of the compressor in the vapor compression system, an electrochemical compressor (EC) was suggested and its performance was investigated. The EC compresses refrigerant by charging an external voltage to the membrane electrolyte assembly (MEA). Ammonia is used as a working fluid due to its high thermodynamic characteristics. This paper mainly focuses on two topics: thermodynamic compression limit at the open loop and the EC performance at the closed loop. The thermodynamic compression limit of the EC at open loop verifies the voltage and compression ratio relationship based on the Nernst equation. The current density of the MEA was investigated with voltage and refrigerant charge. The pressure lift across the EC was measured as well.Â