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

  • 제31권2호
  • /
  • Pages.303-312
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  • 2015
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  • 1226-9093(pISSN)
  • /
  • 2384-177X(eISSN)
대한건축학회 (Architectural Institute of Korea)
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국내외 유사 규정 비교 및 외피 유형별 사례 검토를 통한 건물 외피 단열 규정에서의 열교 영향 고려 필요성 분석

Analysis of Needs for Building Envelope Insulation Regulations Reflecting the Thermal Bridging Effects through Similar Regulations Review and Case Study

  • 박민주 (이화여자대학교 건축공학과 대학원) ;
  • 송진희 (이화여자대학교 건축공학과 대학원) ;
  • 임재한 (이화여자대학교 건축공학과) ;
  • 송승영 (이화여자대학교 건축공학과)
  • 투고 : 2014.12.04
  • 심사 : 2015.02.05
  • 발행 : 2015.02.28
⟨ 이전 논문 다음 논문 ⟩

초록

Envelope insulation plays a key role to save building energy consumption. To obtain a high level of insulation performance, it is essential to minimize repeated thermal bridges, which cause substantial heat loss through the building envelope. However, required U-value calculations, prescribed in the Code for Energy-efficient Building Design, assume that there are no thermal bridges and one-dimensional heat transfer occurs. Accordingly, effective U-values of actual buildings are quite different from the U-values prescribed in the Code. The aim of this study was to examine the needs for building envelope insulation regulations reflecting the influence of thermal bridges. A variety of insulation regulations of Korea and many other countries were reviewed and compared. The influence of thermal bridging effects on the insulation performance was evaluated by three dimensional steady-state heat transfer simulations. As results, it was found that effective U-values of cases reflecting thermal bridging effects were 23.8~218.8% higher than those of cases not reflecting thermal bridging effects. Thus, it is necessary to improve building envelope insulation regulations to include thermal bridging effects.

키워드

과제정보

연구 과제 주관 기관 : 한국에너지기술평가원(KETEP), 국토교통부

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