Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

A Study on the Reduction of Dew Generation on a Surface Using Induced Heat from Room Temperature

외부 열원 전도방식을 이용한 표면 이슬 맺힘 현상의 개선

  • Kim, Seong-Jin (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Kang, Seok-Hoon (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Park, Ki-Hong (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Yoo, Won-Sul (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Park, Sang-Hu (ERC/NSDM, School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Choi, Ho-Jin (LG Electronics Ref. R&D Lab.)
  • 김성진 (부산대학교 기계공학부 정밀가공시스템대학원) ;
  • 강석훈 (부산대학교 기계공학부 정밀가공시스템대학원) ;
  • 박기홍 (부산대학교 기계공학부 정밀가공시스템대학원) ;
  • 유원설 (부산대학교 기계공학부 정밀가공시스템대학원) ;
  • 박상후 (부산대학교 정밀정형 및 금형가공연구센터/기계공학부) ;
  • 최호진 (LG 전자 냉장고 연구소)
  • Received : 2011.01.19
  • Accepted : 2011.03.30
  • Published : 2011.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dew generation on an outer surface is considered as an important issue to be settled in the field of home appliances. In the case of a refrigerator that is subject to the dew generation problem on the surface of an outer-door of refrigeration thread, and so as to solve this problem, the electric heater is generally used for drying the dew. However, the heater inevitably requires electrical power consumption that is one of critical issues on the refrigerator. In this study, to prevent dew generation without the heater, a method of using induced heat from room temperature was proposed. In edge sides of a door, high conductive plates are installed and received the heat from outside that is relatively high temperature, and the heat is transferred onto dew generation region. Using prototypes, performance test was conducted under a certain temperature and humidity condition. The experimental results show that the surface temperature on the dew generation region was increased about $0.3{\sim}2.5^{\circ}C$ without use of any heater.

Keywords

References

  1. Lee, M. Y., Kim, S. U. and Kim, Y. C., "Performance Evaluations of a Residential Small Multi- Refrigeration System Considering the Adiabatic Characteristics," Trans. of KSME B, Vol. 31, No. 10, pp. 868-875, 2007.
  2. Lee, M. Y., Lee, D. Y. and Kim, Y. C., "A Study on the Heat Transfer Performance of an Energy-Nose Section in a Household Refrigerator-Freezer," Trans. of KSME B, Vol. 31, No. 6, pp. 574-580, 2007.
  3. Jin, W. Y., Ha, J. S., Jung, K. S. and Kim, T. K., "A Research on Quantification and Sensitivity of Heat Loss in a Residential Refrigerator," Proceedings of the SAREK 2009 Winter Annual Conference, pp. 221-226, 2009.
  4. Park, J. K., "Optimization of Heat Insulation System for a Household Refrigerator," Korea Journal of Air-Conditioning and Refrigeration Engineering, Vol. 15, No. 2, pp. 95-102, 2003.
  5. Ha, J. S., Jung, K. S., Kim, T. K. and Kim, K. H., "The Effect on Heat Loss Reduction in a Refrigeration with the Variation of Gasket Shape," Proceedings of the SAREK 2008 Winter Annual Conference, pp. 286-291, 2008.
  6. Ha, J. S., Jung, K. S., Kim, T. K. and Shim, J. S., "The Effect of Gasket Shape and Material Properties on Heat Losses in a Refrigerator," Korea Journal of Air-Conditioning and Refrigeration Engineering, Vol. 22, No. 6, pp. 413-418, 2010.
  7. A World of Pinguicula, http://www.pinguicula.org/pages/culture/Overview.htm
  8. Paroscientific, Inc., http://www.paroscientific.Com/dewpoint.htm
  9. Division of FEA, "Heat Transfer Analysis," Tae Sung Software & Engineering, Inc., pp. 3-99, 2005.
  10. Division of FEA, "Selected Problems for ANSYS Users," Tae Sung Software & Engineering, Inc., pp. 67-133, 2009.
  11. Arpaci, V. S., "Conduction Heat Transfer," Addison-Wesley Publishing Company, pp. 180-269, 1966.
  12. Incropera, F. P., Dewitt, D. P., Bergman, T. L. and Lavine, A. S., "Introduction to Heat Transfer 5E," John Wiley & Sons, pp. 201-253, 2007.