International Journal of Air-Conditioning and Refrigeration

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Characteristics of a Household Refrigerator with Dual Evaporators Using Two-Stage Compression Cycle

  • Joo, Young-Ju (Department of Mechanical Engineering, Graduate School of Korea University) ;
  • Kim, Young-Heon (Refrigerator Technology Group, Samsung Electronics Co., LTD) ;
  • Lee, Moo-Yeon (Department of Mechanical Engineering, Graduate School of Korea University) ;
  • Yoon, Won-Jae (Department of Mechanical Engineering, Graduate School of Korea University) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University)
  • Published : 2009.09.30
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Abstract

The objective of this study is to investigate performance characteristics of a household refrigerator using a two-stage compression cycle. The performance of the two-stage compression cycle was measured by varying the compressor speed, condensing temperature, and evaporating temperature. The COP of the two-stage compression cycle was analyzed and then compared with that of the single-stage compression cycle. The optimum combination of compressor speeds for a low- and a high-stage was determined. The COP of the two-stage compression cycle using a PTC (parallel two-stage compression) method was 5.85% higher than that of a STC (serial two-stage compression) method at optimum operating conditions.

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References

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