Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Energy Performance and Economic Feasibility Evaluation of Exterior Insulation and Finish System with Truss-shaped Insulation Frame Reflecting Thermal Bridging Effect

열교 영향을 반영한 트러스 단열 프레임 적용 외단열 시스템의 에너지 성능 및 경제성 평가

  • Choi, Bo-Hye (Dept. of Architecture & Urban Systems Engineering, Ewha Womans University) ;
  • Song, Seung-Yeong (Dept. of Architecture & Urban Systems Engineering, Ewha Womans University)
  • 최보혜 (이화여대 건축도시시스템공학과) ;
  • 송승영 (이화여대 건축도시시스템공학과)
  • Received : 2021.12.23
  • Accepted : 2022.02.15
  • Published : 2022.02.28
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Abstract

This study aims is to compare the energy performance and economic feasibility of outer wall insulation systems using conventional rectangular pipe frames as the base case with double and single truss-shaped insulation frames intended to reduce the thermal bridging effect of alt 1 and alt 2. Annual heating and cooling energy use were estimated by performing a dynamic building energy simulation. The thermal bridging effect was modeled by applying the linear thermal transmittance obtained from the three-dimensional steady-state heat transfer simulation to the building energy simulation. The annual energy cost, construction cost, and life cycle cost for 30 years were estimated together. The results indicated that the annual energy use of alt 1 and alt 2 decreased by 12.5% and 13.9%, the annual energy cost decreased by 11.8% and 13.2%, the construction cost decreased by 1.4% and 6.8% and the life cycle cost of alt 1 and alt 2 decreased by 2.6% and 7.5% respectively.

Keywords

Acknowledgement

이 논문은 2021년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(20202020800360, 기존 공공건물 에너지 효율 진단 및 리모델링 기술 개발 실증)

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