Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Study of Structural Stiffness of Refrigerator Cabinet Using the Topology Optimization of a Vacuum Insulated Panel (VIP)

진공단열재(Vacuum Insulation Panel)를 사용한 냉장고 캐비닛의 구조강성을 위한 위상최적설계에 관한 연구

  • Jeong, Gil-Eon (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kang, Pilseong (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Youn, Sung-Kie (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Yeo, Inseok (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Song, Tae-Ho (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Jun O (DMC R&D Center, Samsung Electronics Co., Ltd.) ;
  • Kim, Dae Whan (DMC R&D Center, Samsung Electronics Co., Ltd.) ;
  • Kuk, Keon (DMC R&D Center, Samsung Electronics Co., Ltd.)
  • 정길언 (한국과학기술원 기계공학과) ;
  • 강필성 (한국과학기술원 기계공학과) ;
  • 윤성기 (한국과학기술원 기계공학과) ;
  • 여인석 (한국과학기술원 기계공학과) ;
  • 송태호 (한국과학기술원 기계공학과) ;
  • 김준오 (삼성전자 DMC연구소) ;
  • 김대환 (삼성전자 DMC연구소) ;
  • 국건 (삼성전자 DMC연구소)
  • Received : 2015.01.07
  • Accepted : 2015.06.29
  • Published : 2015.08.01
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Abstract

Currently, polyurethane (PU) foam is used in most refrigerators as a thermal insulator, whereby the material contributes to structural stiffness by joining the refrigerator cases; however, refrigerator PU foam induces a low thermal efficiency and results in environmental contamination. To resolve these issues, we applied the vacuum insulated panel (VIP) instead of PU form in the design of a new refrigerator type, whereby the VIP significantly contributes to the rectification of the previously mentioned issues. The VIP structure, however, cannot effectively hold refrigerator cases, so the present study investigated a new frame-structure concept by evaluating the stiffness using the topology optimization of refrigerator cases. Lastly, a refrigerator prototype comprising an optimal frame structure was built and subject to a stiffness test, and a comparison of the test results with those of a conventional refrigerator show that the structural stiffness of the prototype is sufficiently effective.

Keywords

References

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