This paper describes a whole simulation model with personal computer for estimating the performance of hermetic reciprocating compressors used in refrigerators. The computer package includes six control volumes and three major calculating modules, which contain simulations of valves dynamics, compressor thermodynamics and mechanism. From the frictional loads and indicated work that were derived from the thermodynamics and mechanism simulation procedure respectively, can evaluate the motor efficiency, volumetric efficiency, adiabatic compression efficiency and mechanical efficiency, and then the energy efficiency ratio (E.E.R.) of the reciprocating compressor can also be obtained. In this study, the valve dynamic, which uses with a nonlinear mode to deal with the motion of the reed valve, thermal and mechanism analysis are incorporated to simulate the compressor performance. The E.E.R. of the compressors shows well agreement between simulation predictions and experimental data in two different valve thicknesses and the feasibility of this computer model also has been verified.
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