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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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The Effect of Gasket Shape and Material Properties on Heat Losses in a Refrigerator

냉장고 가스켓 주위 형상 및 물성치 변화에 의한 열손실 영향 연구

  • 하지수 (계명대학교 에너지환경과학과) ;
  • 정광수 (계명대학교 에너지환경과학과) ;
  • 김태권 (계명대학교 기계자동차공학부) ;
  • 심재성 (부산대학교 기계공학부)
  • Received : 2010.03.21
  • Accepted : 2010.04.19
  • Published : 2010.06.10
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Abstract

The amount of heat loss of a refrigerator through the gasket is nearly 30% of total refrigerator heat loss. In this paper, quantitative evaluation for the effects of various effort to reduce heat losses through the gasket. The first trial is to extend the inner gasket to prevent the heat loss flowing from the inner of refrigerator. The effects of thermal conductivity changes of gasket and magnet are investigated by the numerical heat transfer analysis. The position change of hot line is also examined in the present research. From the present result of the numerical simulation of heat transfer, we are able to reduce the heat loss about 20~40% by using inner gasket extension. The reducing of thermal conductivity of gasket is considerable in the heat loss reduction. On the other hand, the thermal conductivity change of magnet has no apparent effect in heat loss reduction. The position change of hot line has considerable positive effect in the reduction of heat loss near gasket region.

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References

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