Influence of thermal bridges on the insulation performance of curtain wall panel systems
- 주제(키워드) Curtain wall , Energy performance , Internal surface condensation risk , Panel system , Thermal bridge
- 등재 SCIE, AHCI, SCOPUS
- 발행기관 Architectural Institute of Japan
- 발행년도 2015
- URI http://www.dcollection.net/handler/ewha/000000119467
- 본문언어 영어
- Published As http://dx.doi.org/10.3130/jaabe.14.741
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Thermal insulation plays a key role in saving energy consumed by buildings. To obtain a high level of insulation performance, repeated thermal bridges should be minimized. These bridges may cause a substantial heat loss through the building envelope. Recently, the application of curtain walls has been rapidly increasing. However, thermal bridges frequently occur in the non-vision panel system in which the insulation materials are installed because of the numerous metal members passing through the insulation layer. The aim of this study was to analyze the influence of thermal bridges on the insulation performance of curtain wall panels in terms of the energy performance and internal surface condensation risk. A three-dimensional steady state heat transfer simulation was performed for four types of panel systems: insulation-joined metal sheet, insulation-separated metal sheet, bracket-fixed metal panel and screw-fixed metal panel. The heat loss, effective U-value, lowest internal surface temperature and lowest temperature factor of each panel system with and without thermal bridges were calculated and compared. © 2015, Architectural Institute of Japan. All rights reserved.
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