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Vapor injection systems have been used on scroll compressor and rotary compressor. Literature about the use of vapor injection on reciprocating piston compressor are rare. In order to increase the application range of the piston compressor, based on the single stage circulatory system, a reciprocating piston compressor with injected quasi two-stage compression system was proposed. The experiment device with vapor injection is built by modifying the reciprocating piston compressor. Analysis of exergy losses and exergy efficiency of the system are carried out. The results show that the intermediate injection system can reduce exergy loss system and expand the application range of reciprocating piston compressor. Keywords-reciprocating piston compressor; Intermediate injection; exergy destruction; exergy analysis

Energy and Exergy Analysis of a Refrigeration System with Vapor Injection Using Reciprocating Piston Compressor