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Heat Flow and Cooling Performance of an Electronic Refrigerating Kimchi Jar

전자냉동 김치독의 열유동 및 성능 특성

  • 송규석 (한양대학교 대학원 기계공학과) ;
  • 김경환 (한양대학교 대학원 기계공학과) ;
  • 이승철 (한양대학교 대학원 기계공학과) ;
  • 고철균 (한양대학교 대학원 기계공학과) ;
  • 이재헌 (한양대학교 기계공학과) ;
  • 오명도 (서울시립대학교 기계공학과)
  • Received : 1999.03.10
  • Published : 1999.07.01

Abstract

The electronic refrigerating kimchi jar operates with a low noise because it contains no compressor but it consumes more energy than that of an refrigerator with compressor. In this paper, the heat flow characteristics and cooling performance of an electronic refrigerating kimchi jar are studied by means of experiments. When the storage temperature is kept in a range of $-5.7^{\circ}C$ to $4.1^{\circ}C$. in the case of three ambient temperatures; $12.7^{\circ}C$, $22.3^{\circ}C$ and $32.2^{\circ}C$, the cooling performance of $20{\ell}$ kimchi jar is investigated. The experiments show that the temperature difference that exists between kimchi jar and its ambient provides a measure of the coefficient of performance of kimchi jar. It is also found that ratio of net pumping heat to the heat pumping rate of thermoelectric module is independent of the temperature difference.

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Acknowledgement

Supported by : 한국과학재단