Journal of the Architectural Institute of Korea Planning & Design (대한건축학회논문집:계획계)

Architectural Institute of Korea (대한건축학회)
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An Experimental Study on the Ventilated Cavity of the Ventilated Roof to Improve Insulation Performance for the Cooling Season

하절기 단열 성능 향상을 위한 통기성 지붕의 통기 구조에 관한 실험적 연구

  • Received : 2014.07.03
  • Accepted : 2014.08.18
  • Published : 2014.09.30
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Abstract

The thermal performance of the building envelope is mainly required for guaranteeing a comfortable and hygienic interior climate. A roof is a part of the building envelope which provides protection from the thermal damage of the sun. To improve this protection ability, we can consider using a ventilated roof, which has a ventilation layer known as a cavity, beneath the roof cover panel. The objective of this study is to evaluate the influence of such factors as the slope of the roof, size or shape of the openings (i.e. inlet or outlet), effective cross section and cavity depth on the improvement of the air flow in the cavity for better thermal performance of the ventilated roof. In this study, the influence on air flow which is caused by the characteristics of these elements is researched. The evaluations are carried out by way of experiments.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. 김광우, 여명석, 이선우, 건물의 단열향상 및 결로 저감을 위한 건물 외피 / 통기성 외피를 중심으로, 그린빌딩(한국그린빌딩협의회지) 7(4), 2006
  2. 김상진, 금종수, 최광환, 신병환, 정용현, 통기벽체적용 건물에서의 일사열 제거효과 검토, 한국태양에너지학회 논문집 24(2), p.p.25-32, 2004
  3. 김상진, 금종수, 최광환, 신병환, 정용현, 모형통기벽체를 활용한 냉방부하 저감 및 열환경 개선 평가, 한국생활환경학회지, 11(1), p.p.54-59, 2004.
  4. 임재한, 통기성 지붕 구조를 이용한 메탈루프시스템, 그린빌딩(한국그린빌딩협의회지) 9(2), 2008
  5. 조구상, 박상훈, 조가영, 이선우, 여명석, 김광우, 실험장비를 이용한 통기성외피의 단열성능 평가방법에 관한 연구, 한국건축친환경설비학회 추계학술발표대회 논문집, p.p.117-120, 2007
  6. Dimoudi A, Androutsopoulos A, Lykoudis S, Summer performance of a ventilated roof component. Energy and Buildings 38(6), p.p.610-617, 2006 https://doi.org/10.1016/j.enbuild.2005.09.006
  7. Lee SW, Kim CR, Lim JH, Park MY, Yeo MS, Kim KW, The effect of cavity on heat and moisture transfer in a ventilated curtain wall, In: Proceeding of Clima 2007 wellbeing indoors, B02-1281, 2007
  8. Lee SW, Park SH, Yeo MS, Kim KW, An experimental study on airflow in the cavity of a ventilated roof, Building and Environment 44, p.p.1431-1439, 2009 https://doi.org/10.1016/j.buildenv.2008.09.009
  9. National Roofing Contractors Association, The NRCA architectural sheet metal and metal roofing manual. 2006 ed. Rosemont, NRCA, 2006
  10. Sandberg M, Moshfegh B, Ventilated-solar roof air flow and heat transfer investigation. Renewable Energy 15, p.p.287-292, 1998 https://doi.org/10.1016/S0960-1481(98)00175-X
  11. Shim SK, et al., A Simple Model to Study Ventilated Facades Energy Performance, Journal of Architectural Institute of Korea, 20(4), p.p.229-236, 2004
  12. Tae WJ, A Study on the Optimum Slope of the Roof for Minimum Cooling Load, Journal of the Korean Solar Energy Society, 25(4), p.p.119-123, 2005
  13. Takeda Kazuhiro, Akasaka Hiroshi, Quantitative evaluation of sunshading and heat insulation techniques for exterior walls and roofs with vented air layer, Summaries of technical papers of Annual Meeting Architectural Institute of Japan, p.p.223-224, 2005
  14. Takashi Masaya, Kadoya Terunori, Ohsawa Tetsuo, Aoyama Mitsuo, An Experimental Study on Cooling Performance of Shell Roof with Naturally Ventilated Air Layer, Summaries of technical papers of Annual Meeting Architectural Institute of Japan, p.p.351-352, 2003