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

  • 제31권4호
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  • Pages.203-212
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  • 2015
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  • 1226-9093(pISSN)
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  • 2384-177X(eISSN)
대한건축학회 (Architectural Institute of Korea)
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바닥복사난방이 적용된 사무소 건물의 Downdraft 평가에 관한 연구

A Study on Downdraft Assessment of the Office Buildings with Radiant Floor Heating System

  • 조구상 (서울대학교 대학원 건축학과) ;
  • 박소정 (서울대학교 대학원 건축학과) ;
  • 신대욱 (서울대학교 대학원 건축학과) ;
  • 이태하 (서울대학교 대학원 건축학과) ;
  • 여명석 (서울대학교 건축학과) ;
  • 김광우 (서울대학교 건축학과)
  • 투고 : 2014.10.02
  • 심사 : 2015.01.05
  • 발행 : 2015.04.30
⟨ 이전 논문 다음 논문 ⟩

초록

A radiant heating system keeps a space uniformly heated and comfortable. In addition, this system occupies only a small amount of space. Because of these advantages, many countries are now applying this system. However, when applying radiant floor heating, the thermal discomfort that can be caused by the external environment needs to be considered. Recently, the amount of glass area used in office buildings has been increasing. As a result, heat loss through the building envelope has increased, and increasing the risk of the occurrence of downdraft. Downdraft is defined as descending cold air induced by cold windows in colder weather, which may cause thermal discomfort to occupants. Therefore, in this study, the principle of how donwdraft occurs was analyzed. In order to estimate air movement in a room, numerical simulations are performed. A computational model of a room with radiant floor heating is constructed within the CFD program Star CCM+. Eight cases of radiant floor heating with varying surface temperatures, surface areas and window U-value are considered.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

참고문헌

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