The Change of Heating and Cooling Load according to the Thermal Insulation Performance of Window for an Apartment House

창호의 단열성능에 따른 공동주택 냉난방 부하량 변화

  • Song, Su-Bin (Department of Architectural Engineering, Busan National University) ;
  • Kim, Young-Tag (Institute of Construction Technology, Samsung Engineering & Construction) ;
  • Yoon, Seong-Hwan (School of Architecture, Busan Nationl University)
  • 송수빈 (부산대학교 건축공학과) ;
  • 김영탁 (삼성물산(주) 건설부문 기술연구소) ;
  • 윤성환 (부산대학교 건축학부)
  • Published : 2008.06.25

Abstract

Windows have an great effect on annual building load because windows are the weakest parts of building envelope thermally. To reduce the consumption of building energy, the thermal performance of window has to be improved in first place. Therefore this research aims to make a quantitative analysis of the heating and cooling load according to the window thermal performance using the heat load simulation program. As a result of the simulation, annual heat load is down 38% according to the decrease of U-value of window, 1.00 W/$m^2K$. and annual heat load is up 10% according to the decrease of shading coefficient, 0.20. The annual load of the window with Low-E glass is 15% lower than the window with pair glass.

Keywords