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A Numerical Study on Heat Transfer in a Reciprocating Compressor for a Domestic Refrigerator  

Sim Yun-Hee (Department of Energy and Environment, Kyungmin College)
Youn Young (Rotary Compressor R&D Group, D/A Network, Samsung Electronics, Co., LTD.)
Park Youn Cheol (Department of Mechanical Engineering, Cheju National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.4, 2005 , pp. 377-385 More about this Journal
Abstract
An analytical model was developed using the lumped mass parameter method to estimate temperature distribution of metal parts and refrigerant of the hermetic reciprocating compressor, All of the lumped mass has been equated with the first law of thermodynamics. In the delivered equation, correlations of heat transfer coefficient in the heat transfer equation were taken from open literature. The equations are solved by Gauss-Jordan method simultaneously. To verify the developed numerical program, an experiment was conducted with a domestic refrigerator. The compressor which had been installed at the bottom of the experimental refrigerator was modified to measure internal temperature. Model verification test was conducted at $30^{\circ}C$ outdoor temperature with variation of compressor cooling conditions. As a result, there is a good consistency between calculated temperature and measured one.
Keywords
Refrigerator; Hermetic; Reciprocating compressor;
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  • Reference
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