Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Effect of Hot Lines and the Assembly of Flange for a Refrigerator to Reduce Dew Generation

냉장고 Flange부 이슬 맺힘 방지를 위한 열선의 영향 및 조립에 관한 연구

  • Kim, Na Hyun (Dept. of Mechanical Engineering, Korea Maritime and Ocean Univ.) ;
  • Cho, Jong Rae (Dept. of Mechanical Engineering, Korea Maritime and Ocean Univ.) ;
  • Park, Sang Hu (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • 김나현 (한국해양대학교 기계공학부) ;
  • 조종래 (한국해양대학교 기계공학부) ;
  • 박상후 (부산대학교 기계공학부)
  • Received : 2015.01.26
  • Accepted : 2015.02.23
  • Published : 2015.04.01
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Abstract

When the temperature of a flange in a refrigerator is reduced to the dew point, condensation is generated on the flange. Generally, hot lines, having a temperature of $35^{\circ}C$, are located near the flange to increase its surface temperature above the dew point. Hot lines are installed in close contact with the flange in order to increase the heat transfer from the hot lines to the flange surface. Through this work, the effects of the hot line shape and installation conditions, including a gap between the hot line and flange, and the function of a spacer in the inner case of the refrigerator were investigated. Additionally, an optimal shape of the inner case for easy assembling is proposed considering the contact between the hot line and flange.

논문은 가장 보편화 되어있는 양문형 냉장고의 플랜지에서 이슬 맺힘 현상을 방지하기 위한 연구에 대한 논문이다. 양문형 냉장고는 냉동실과 냉장실을 분리하는 벽의 전면부를 플랜지라하고 여기에 양문의 개스킷이 밀착하여 냉기를 차단하는 역할을 한다. 플랜지의 철판에 맺히는 이슬을 방지하기 위해서 $35^{\circ}C$의 고온의 냉매가 흐르는 열선이 삽입된다. 하지만 열선을 삽입함에도 이슬 맺힘 현상이 계속되고 있는데 이것은 열선이 철판 하부에 밀착되지 않아 열선의 열이 철판 하부에 충분히 전달되지 않기 때문이다. 본 논문에서는 열선의 영향을 평가하고 열선과 철판 하부가 충분한 열전달을 할 수 있는 구조를 제안하고 그 타당한지 확인하였다.

Keywords

References

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