A novel rotary compressor, termed the z-compressor, has been developed and is analyzed in this paper. The compressor has two chambers and performs two compression processes per rotation. The sequence in which the two compression processes are performed is similar to that of a twin rolling piston rotary compressor, although the geometry of this compressor is quite different. This novel compressor has the lowest noise and vibration operation compared to existing compressors. In this work, the characteristics of this compressor are presented and an analytical model that has been developed to study the performance of the z-compressor is described. The dimensions of the compressor, the suction pressure and temperature, and the discharge pressure are the input parameters of the model. Sample results generated with the model using refrigerant R410A as the working fluid are also presented in this work. These results focus on the impact of the leakage and frictional losses on the overall compressor performance.
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