Unsteady-State Analysis of the Compression Cycle of a Hermetic Reciprocating Compressor
نویسندگان
چکیده
In this work a previous steady-state model [1] of a hermetic reciprocating compressor has been improved using an unsteady-state analysis of the compression cycle which allows a direct computation of the heat, work and mass flow rates. The new model requires the geometry of the machine, refrigerant inlet temperature and pressure, vapour discharge pressure, electric and mechanical efficiencies as input data. The output results include refrigerant outlet temperature, the mean temperatures of the main parts of the compressor, heat, work and mass flow rates and the behaviour of each characteristic parameter during the compression cycle. The results of the simulation have been compared against experimental measurements carried out on two commercial units operating with R600a and R134a respectively.
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