Comprehensive model of a hermetic reciprocating compressor

10th International Conference on Compressors and their Systems

Yang, B.^1 ; Ziviani, D.^1 ; Groll, E.A.^1

Purdue University, School of Mechanical Engineering, Ray W. Herrick Laboratories, West Lafayette

IN, United States^1

关键词: Compressor components;    Compressor performance;    Experimental validations;    Hermetic reciprocating compressor;    In-cylinder heat transfer models;    Numerical algorithms;    Single phase induction motor;    Structural parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/232/1/012007/pdf
DOI  :  10.1088/1757-899X/232/1/012007

来源: IOP

【 摘 要 】

A comprehensive simulation model is presented to predict the performance of a hermetic reciprocating compressor and to reveal the underlying mechanisms when the compressor is running. The presented model is composed of sub-models simulating the in-cylinder compression process, piston ring/journal bearing frictional power loss, single phase induction motor and the overall compressor energy balance among different compressor components. The valve model, leakage through piston ring model and in-cylinder heat transfer model are also incorporated into the in-cylinder compression process model. A numerical algorithm solving the model is introduced. The predicted results of the compressor mass flow rate and input power consumption are compared to the published compressor map values. Future work will focus on detailed experimental validation of the model and parametric studies investigating the effects of structural parameters, including the stroke-to-bore ratio, on the compressor performance.