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Influence of Thermal Bridges on the Insulation Performance of Curtain Wall Panel Systems

Title
Influence of Thermal Bridges on the Insulation Performance of Curtain Wall Panel Systems
Authors
Song, Jin-HeePark, Si-HyunPark, Min-JuLim, Jae-HanSong, Seung-Yeong
Ewha Authors
송승영임재한
SCOPUS Author ID
송승영scopus; 임재한scopus
Issue Date
2015
Journal Title
JOURNAL OF ASIAN ARCHITECTURE AND BUILDING ENGINEERING
ISSN
1346-7581JCR Link1347-2852JCR Link
Citation
vol. 14, no. 3, pp. 741 - 748
Keywords
curtain wallpanel systemthermal bridgeenergy performanceinternal surface condensation risk
Publisher
ARCHITECTURAL INST JAPAN
Indexed
SCIE; AHCI; SCOPUS WOS scopus
Abstract
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.
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엘텍공과대학 > 건축공학전공 > Journal papers
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