An experimental and numerical study on dynamic characteristic of linear compressor in refrigeration system

This paper presents experimental and numerical results of the dynamic characteristic and COP of a linear compressor in a refrigeration system using R600 refrigerant. The numerical analysis consists of a model and a simulation that includes the linear compressor. In this study, the dynamic characteri...

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Bibliographic Details
Published in:International journal of refrigeration 2009-11, Vol.32 (7), p.1536-1543
Main Authors: Kim, Hyun, Roh, Chul-gi, Kim, Jong-kwon, Shin, Jong-min, Hwang, Yujin, Lee, Jae-keun
Format: Article
Language:English
Subjects:
Applied sciences
Butane
Compresseur linéaire
Compression system
COP
Energy
Energy. Thermal use of fuels
Engines and turbines
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Experiment
Expérimentation
Frequency
Fréquence
Linear compressor
Modelling
Modélisation
Refrigerants
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Refrigeration system
Resonance
Résonance
Simulation
Système frigorifique
Système à compression
Techniques. Materials
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Summary:This paper presents experimental and numerical results of the dynamic characteristic and COP of a linear compressor in a refrigeration system using R600 refrigerant. The numerical analysis consists of a model and a simulation that includes the linear compressor. In this study, the dynamic characteristic of the natural frequency of the linear compressor is validated by comparing the simulation results with the experimental results. To investigate the effect of system resonance on the performance of linear compressor, COP is evaluated under evaporator pressure in the range of 48.3–63.2 kPa abs, and condenser pressure in the range of 439.0–573.3 kPa abs. Based on the results, the system resonance at the TDC was varied within a range of 3% under the test conditions. COP and its sensitivity were found to vary within 3% according to the operating frequency of the system ranging from 48.5 to 51.5 Hz.
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2009.05.002