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A Study on the Effects of the Cold Heat Storage with Salt Water on the Performance of a Kimchi Refrigerator  

Gil, Bog-Im (Department of Food and Nutrition, Anyang University)
Choi, Eun-Soo (Department of Mechanical Engineering, Myongji University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.22, no.12, 2010 , pp. 891-896 More about this Journal
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.
Keywords
Kimchi Refrigerator; Salt water; Phase-change material;
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