Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Effects of the Cold Heat Storage with Salt Water on the Performance of a Kimchi Refrigerator

염수 축냉이 김치냉장고의 성능에 미치는 영향

  • Gil, Bog-Im (Department of Food and Nutrition, Anyang University) ;
  • Choi, Eun-Soo (Department of Mechanical Engineering, Myongji University)
  • 길복임 (안양대학교 식품영양학과) ;
  • 최은수 (명지대학교 기계공학과)
  • Received : 2010.10.20
  • Accepted : 2010.11.25
  • Published : 2010.12.10
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Abstract

The objective of the present study is to reveal the effects of a phase-change material on the performance of a Kimchi refrigerator. Two-percent salt water, of which melting temperature was $-1.1^{\circ}C$, was used for the phase-change material. The salt water was packed in silicon cases and inserted between Kimchi container and the copper pipe of the evaporator. The maximum and minimum temperatures of the inner wall of the Kimchi container without salt-water pack were $-0.2^{\circ}C$ and $-8.9^{\circ}C$, which were remarkably improved by using the salt-water packs, resulting $-0.5^{\circ}C$ and$ -1.9^{\circ}C$. This shows a useful application of using phase-change materials for accurate temperature controls.

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References

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