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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Application of Ventilated Cavity for Enhancing Insulation and Preventing Condensation of Curtain-wall System

커튼월의 단열 향상 및 결로 방지를 위한 통기구조 적용방안 연구

  • Lee, Sunwoo (Department of Architecture and Architectural Engineering, Seoul National University)
  • Received : 2016.11.08
  • Accepted : 2016.11.15
  • Published : 2017.01.10
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Abstract

Curtain-wall systems have been widely applied to buildings because of their lightweight and constructability characteristics. However, as curtain-wall systems include many building materials, vapor barriers can become damaged and condensation can occur. Due to the material properties of stone curtain-walls, the external appearance and structure of a building could be damaged and the insulating performance of the curtain-wall could be worse. Natural ventilation using an air cavity in a curtain-wall is expected to be effective for the prevention of condensation in inner walls and for the reduction of building cooling energy use in the summer. The purpose of this experimental study is to analyze the influence of a ventilated cavity on the insulating performance of a curtain-wall and the ventilated cavity depth and ratio of top opening needed to prevent condensation in a curtain-wall.

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References

  1. Balocco, C., 2002, A Simple Model to Study Ventilated Facades Energy Performance, Energy and Buildings, Vol. 34, pp. 469-475. https://doi.org/10.1016/S0378-7788(01)00130-X
  2. Charlotte, G., 2003, Moisture Transport and Convection in Building Envelope : Ventilation in Light Weight Outer Walls, Technical University of Denmark.
  3. Centre for Window and Technology, 2000, Fenestration and Cladding Engineering Tech(FACETS).
  4. Gudum, C., 2003, Moisture Transport and Convection in Building Envelopes Ventilation in Light Weight Outer Walls, Ph.D. Thesis, Technical University of Denmark.
  5. Lee, M. J., Lee, S., Yeo, M. S., and Kim, K. W., 2006, An Experimental Study on Insulation and Preventing Condensation Performance of Ventilated Curtain Wall, SAREK 2006 Summer Annual Conference, pp. 1081- 1086.
  6. Lee, Mi-Jin, 2007, Evaluation of Ventilated Curtain Wall Design Parameters Considering Cooling Performance, Thesis.
  7. Lee, S., Yeo, M. S., and Kim, K. W., 2006, CFD Analysis on the Performance of Preventing Condensation in a Ventilated Curtain wall, ISAIA2006, pp. 883-886.
  8. Liu, J., Aizawa, H., and Yoshino, H., 2004, CFD prediction of surface condensation on walls and its experimental validation. Building and Environment, Vol. 39, No. 8, pp. 905-911. https://doi.org/10.1016/j.buildenv.2004.01.015