Thermal Performance of A Steel Skeleton / Drywall Building Insulated with Vacuum Insulation Panels
Modern construction trends create the need for advanced building shells combining high thermal performance with short construction times and simplified erection approaches.Lightweight steel framed/drywall building systems coupled with Vacuum Insulation Panels(VIPs) form an attractive and versatile solution with high thermal performance and improved safety features.One of the main issues that affect the thermal performance of such wall assemblies is related to the relative positioning of the material layers to form e.g.prefabricated elements and the associated thermal bridging effect.VIPs retain their high vacuum levels with a barrier film,vulnerable to mechanical stresses and are sensitive to puncturing and/or destruction.On the other hand,a steel frame may introduce significant structural thermal bridges,and their relative importance on the overall thermal performance is likely to increase with the quality of the insulation material.This paper addresses the thermal bridging issues and the overall thermal performance of a lightweight steel frame/drywall system in which VIPs are placed as an internal layer within the wall layers.This configuration provides protection for the VIPs,allows flexibility in installation of facade elements and at the same time permits interventions and modifications (e.g.drilling,installation of appliances) on the internal side of the wall.The proposed steel frame/dry wall system with VIPs is extensively analyzed in terms of different types of thermal bridges and their effect on the overall thermal performance.Moreover,the hygro-thermal behavior and the risk of condensation are examined.
vacuum insulation panels VIP thermal bridges building envelope lightweight building
Ioannis Mandilaras Dimos Kontogeorgos Ioannis Atsonios Cornellia Stark S.Tephan Vidi David Marity Daniel Seiler Dominik Herfurth Maria Founti
National Technical University of Athens, School of Mechanical Engineering, Lab.of Heterogeneous Mixt Bayerisches Zentrum fur Angewandteenergieforschung ZAE EV, Am Galgenberg 87, 97074Wuerzburg, Germany Haring Nepple AG, Hebelstrasse 75, 4056 Basel, Switzerland KNAUF GIPS GK, AM Bahnhof 7, 97346 Iphofen,Germany
国际会议
The 12th International Vacuum Insulation Symposium (IVIS 2015)(第十二届国际真空绝热材料会议)
南京
英文
164-169
2015-09-01（万方平台首次上网日期，不代表论文的发表时间）